xref: /freebsd/contrib/llvm-project/clang/include/clang/Basic/DiagnosticSemaKinds.td (revision 6966ac055c3b7a39266fb982493330df7a097997)
1//==--- DiagnosticSemaKinds.td - libsema diagnostics ----------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9//===----------------------------------------------------------------------===//
10// Semantic Analysis
11//===----------------------------------------------------------------------===//
12
13let Component = "Sema" in {
14let CategoryName = "Semantic Issue" in {
15
16def note_previous_decl : Note<"%0 declared here">;
17def note_entity_declared_at : Note<"%0 declared here">;
18def note_callee_decl : Note<"%0 declared here">;
19def note_defined_here : Note<"%0 defined here">;
20
21// For loop analysis
22def warn_variables_not_in_loop_body : Warning<
23  "variable%select{s| %1|s %1 and %2|s %1, %2, and %3|s %1, %2, %3, and %4}0 "
24  "used in loop condition not modified in loop body">,
25  InGroup<ForLoopAnalysis>, DefaultIgnore;
26def warn_redundant_loop_iteration : Warning<
27  "variable %0 is %select{decremented|incremented}1 both in the loop header "
28  "and in the loop body">,
29  InGroup<ForLoopAnalysis>, DefaultIgnore;
30def note_loop_iteration_here : Note<"%select{decremented|incremented}0 here">;
31
32def warn_duplicate_enum_values : Warning<
33  "element %0 has been implicitly assigned %1 which another element has "
34  "been assigned">, InGroup<DiagGroup<"duplicate-enum">>, DefaultIgnore;
35def note_duplicate_element : Note<"element %0 also has value %1">;
36
37// Absolute value functions
38def warn_unsigned_abs : Warning<
39  "taking the absolute value of unsigned type %0 has no effect">,
40  InGroup<AbsoluteValue>;
41def note_remove_abs : Note<
42  "remove the call to '%0' since unsigned values cannot be negative">;
43def warn_abs_too_small : Warning<
44  "absolute value function %0 given an argument of type %1 but has parameter "
45  "of type %2 which may cause truncation of value">, InGroup<AbsoluteValue>;
46def warn_wrong_absolute_value_type : Warning<
47  "using %select{integer|floating point|complex}1 absolute value function %0 "
48  "when argument is of %select{integer|floating point|complex}2 type">,
49  InGroup<AbsoluteValue>;
50def note_replace_abs_function : Note<"use function '%0' instead">;
51def warn_pointer_abs : Warning<
52  "taking the absolute value of %select{pointer|function|array}0 type %1 is suspicious">,
53  InGroup<AbsoluteValue>;
54
55def warn_max_unsigned_zero : Warning<
56  "taking the max of "
57  "%select{a value and unsigned zero|unsigned zero and a value}0 "
58  "is always equal to the other value">,
59  InGroup<MaxUnsignedZero>;
60def note_remove_max_call : Note<
61  "remove call to max function and unsigned zero argument">;
62
63def warn_infinite_recursive_function : Warning<
64  "all paths through this function will call itself">,
65  InGroup<InfiniteRecursion>, DefaultIgnore;
66
67def warn_comma_operator : Warning<"possible misuse of comma operator here">,
68  InGroup<DiagGroup<"comma">>, DefaultIgnore;
69def note_cast_to_void : Note<"cast expression to void to silence warning">;
70
71// Constant expressions
72def err_expr_not_ice : Error<
73  "expression is not an %select{integer|integral}0 constant expression">;
74def ext_expr_not_ice : Extension<
75  "expression is not an %select{integer|integral}0 constant expression; "
76  "folding it to a constant is a GNU extension">, InGroup<GNUFoldingConstant>;
77def err_typecheck_converted_constant_expression : Error<
78  "value of type %0 is not implicitly convertible to %1">;
79def err_typecheck_converted_constant_expression_disallowed : Error<
80  "conversion from %0 to %1 is not allowed in a converted constant expression">;
81def err_typecheck_converted_constant_expression_indirect : Error<
82  "conversion from %0 to %1 in converted constant expression would "
83  "bind reference to a temporary">;
84def err_expr_not_cce : Error<
85  "%select{case value|enumerator value|non-type template argument|"
86  "array size|constexpr if condition|explicit specifier argument}0 "
87  "is not a constant expression">;
88def ext_cce_narrowing : ExtWarn<
89  "%select{case value|enumerator value|non-type template argument|"
90  "array size|constexpr if condition|explicit specifier argument}0 "
91  "%select{cannot be narrowed from type %2 to %3|"
92  "evaluates to %2, which cannot be narrowed to type %3}1">,
93  InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
94def err_ice_not_integral : Error<
95  "integral constant expression must have integral or unscoped enumeration "
96  "type, not %0">;
97def err_ice_incomplete_type : Error<
98  "integral constant expression has incomplete class type %0">;
99def err_ice_explicit_conversion : Error<
100  "integral constant expression requires explicit conversion from %0 to %1">;
101def note_ice_conversion_here : Note<
102  "conversion to %select{integral|enumeration}0 type %1 declared here">;
103def err_ice_ambiguous_conversion : Error<
104  "ambiguous conversion from type %0 to an integral or unscoped "
105  "enumeration type">;
106def err_ice_too_large : Error<
107  "integer constant expression evaluates to value %0 that cannot be "
108  "represented in a %1-bit %select{signed|unsigned}2 integer type">;
109def err_expr_not_string_literal : Error<"expression is not a string literal">;
110
111// Semantic analysis of constant literals.
112def ext_predef_outside_function : Warning<
113  "predefined identifier is only valid inside function">,
114  InGroup<DiagGroup<"predefined-identifier-outside-function">>;
115def warn_float_overflow : Warning<
116  "magnitude of floating-point constant too large for type %0; maximum is %1">,
117   InGroup<LiteralRange>;
118def warn_float_underflow : Warning<
119  "magnitude of floating-point constant too small for type %0; minimum is %1">,
120  InGroup<LiteralRange>;
121def warn_double_const_requires_fp64 : Warning<
122  "double precision constant requires cl_khr_fp64, casting to single precision">;
123def err_half_const_requires_fp16 : Error<
124  "half precision constant requires cl_khr_fp16">;
125
126// C99 variable-length arrays
127def ext_vla : Extension<"variable length arrays are a C99 feature">,
128  InGroup<VLAExtension>;
129def warn_vla_used : Warning<"variable length array used">,
130  InGroup<VLA>, DefaultIgnore;
131def err_vla_in_sfinae : Error<
132  "variable length array cannot be formed during template argument deduction">;
133def err_array_star_in_function_definition : Error<
134  "variable length array must be bound in function definition">;
135def err_vla_decl_in_file_scope : Error<
136  "variable length array declaration not allowed at file scope">;
137def err_vla_decl_has_static_storage : Error<
138  "variable length array declaration cannot have 'static' storage duration">;
139def err_vla_decl_has_extern_linkage : Error<
140  "variable length array declaration cannot have 'extern' linkage">;
141def ext_vla_folded_to_constant : Extension<
142  "variable length array folded to constant array as an extension">, InGroup<GNUFoldingConstant>;
143def err_vla_unsupported : Error<
144  "variable length arrays are not supported for the current target">;
145def note_vla_unsupported : Note<
146  "variable length arrays are not supported for the current target">;
147
148// C99 variably modified types
149def err_variably_modified_template_arg : Error<
150  "variably modified type %0 cannot be used as a template argument">;
151def err_variably_modified_nontype_template_param : Error<
152  "non-type template parameter of variably modified type %0">;
153def err_variably_modified_new_type : Error<
154  "'new' cannot allocate object of variably modified type %0">;
155
156// C99 Designated Initializers
157def ext_designated_init : Extension<
158  "designated initializers are a C99 feature">, InGroup<C99>;
159def err_array_designator_negative : Error<
160  "array designator value '%0' is negative">;
161def err_array_designator_empty_range : Error<
162  "array designator range [%0, %1] is empty">;
163def err_array_designator_non_array : Error<
164  "array designator cannot initialize non-array type %0">;
165def err_array_designator_too_large : Error<
166  "array designator index (%0) exceeds array bounds (%1)">;
167def err_field_designator_non_aggr : Error<
168  "field designator cannot initialize a "
169  "%select{non-struct, non-union|non-class}0 type %1">;
170def err_field_designator_unknown : Error<
171  "field designator %0 does not refer to any field in type %1">;
172def err_field_designator_nonfield : Error<
173  "field designator %0 does not refer to a non-static data member">;
174def note_field_designator_found : Note<"field designator refers here">;
175def err_designator_for_scalar_init : Error<
176  "designator in initializer for scalar type %0">;
177def warn_subobject_initializer_overrides : Warning<
178  "subobject initialization overrides initialization of other fields "
179  "within its enclosing subobject">, InGroup<InitializerOverrides>;
180def warn_initializer_overrides : Warning<
181  "initializer overrides prior initialization of this subobject">,
182  InGroup<InitializerOverrides>;
183def note_previous_initializer : Note<
184  "previous initialization %select{|with side effects }0is here"
185  "%select{| (side effects may not occur at run time)}0">;
186def err_designator_into_flexible_array_member : Error<
187  "designator into flexible array member subobject">;
188def note_flexible_array_member : Note<
189  "initialized flexible array member %0 is here">;
190def ext_flexible_array_init : Extension<
191  "flexible array initialization is a GNU extension">, InGroup<GNUFlexibleArrayInitializer>;
192
193// Declarations.
194def ext_plain_complex : ExtWarn<
195  "plain '_Complex' requires a type specifier; assuming '_Complex double'">;
196def ext_imaginary_constant : Extension<
197  "imaginary constants are a GNU extension">, InGroup<GNUImaginaryConstant>;
198def ext_integer_complex : Extension<
199  "complex integer types are a GNU extension">, InGroup<GNUComplexInteger>;
200
201def err_invalid_saturation_spec : Error<"'_Sat' specifier is only valid on "
202  "'_Fract' or '_Accum', not '%0'">;
203def err_invalid_sign_spec : Error<"'%0' cannot be signed or unsigned">;
204def err_invalid_width_spec : Error<
205  "'%select{|short|long|long long}0 %1' is invalid">;
206def err_invalid_complex_spec : Error<"'_Complex %0' is invalid">;
207
208def ext_auto_type_specifier : ExtWarn<
209  "'auto' type specifier is a C++11 extension">, InGroup<CXX11>;
210def warn_auto_storage_class : Warning<
211  "'auto' storage class specifier is redundant and incompatible with C++11">,
212  InGroup<CXX11Compat>, DefaultIgnore;
213
214def warn_deprecated_register : Warning<
215  "'register' storage class specifier is deprecated "
216  "and incompatible with C++17">, InGroup<DeprecatedRegister>;
217def ext_register_storage_class : ExtWarn<
218  "ISO C++17 does not allow 'register' storage class specifier">,
219  DefaultError, InGroup<Register>;
220
221def err_invalid_decl_spec_combination : Error<
222  "cannot combine with previous '%0' declaration specifier">;
223def err_invalid_vector_decl_spec_combination : Error<
224  "cannot combine with previous '%0' declaration specifier. "
225  "'__vector' must be first">;
226def err_invalid_pixel_decl_spec_combination : Error<
227  "'__pixel' must be preceded by '__vector'.  "
228  "'%0' declaration specifier not allowed here">;
229def err_invalid_vector_bool_decl_spec : Error<
230  "cannot use '%0' with '__vector bool'">;
231def err_invalid_vector_long_decl_spec : Error<
232  "cannot use 'long' with '__vector'">;
233def err_invalid_vector_float_decl_spec : Error<
234  "cannot use 'float' with '__vector'">;
235def err_invalid_vector_double_decl_spec : Error <
236  "use of 'double' with '__vector' requires VSX support to be enabled "
237  "(available on POWER7 or later)">;
238def err_invalid_vector_long_long_decl_spec : Error <
239  "use of 'long long' with '__vector bool' requires VSX support (available on "
240  "POWER7 or later) or extended Altivec support (available on POWER8 or later) "
241  "to be enabled">;
242def err_invalid_vector_long_double_decl_spec : Error<
243  "cannot use 'long double' with '__vector'">;
244def warn_vector_long_decl_spec_combination : Warning<
245  "Use of 'long' with '__vector' is deprecated">, InGroup<Deprecated>;
246
247def err_redeclaration_different_type : Error<
248  "redeclaration of %0 with a different type%diff{: $ vs $|}1,2">;
249def err_bad_variable_name : Error<
250  "%0 cannot be the name of a variable or data member">;
251def err_bad_parameter_name : Error<
252  "%0 cannot be the name of a parameter">;
253def err_bad_parameter_name_template_id : Error<
254  "parameter name cannot have template arguments">;
255def err_parameter_name_omitted : Error<"parameter name omitted">;
256def err_anyx86_interrupt_attribute : Error<
257  "%select{x86|x86-64}0 'interrupt' attribute only applies to functions that "
258  "have %select{a 'void' return type|"
259  "only a pointer parameter optionally followed by an integer parameter|"
260  "a pointer as the first parameter|a %2 type as the second parameter}1">;
261def err_anyx86_interrupt_called : Error<
262  "interrupt service routine cannot be called directly">;
263def warn_arm_interrupt_calling_convention : Warning<
264   "call to function without interrupt attribute could clobber interruptee's VFP registers">,
265   InGroup<Extra>;
266def warn_interrupt_attribute_invalid : Warning<
267   "%select{MIPS|MSP430|RISC-V}0 'interrupt' attribute only applies to "
268   "functions that have %select{no parameters|a 'void' return type}1">,
269   InGroup<IgnoredAttributes>;
270def warn_riscv_repeated_interrupt_attribute : Warning<
271  "repeated RISC-V 'interrupt' attribute">, InGroup<IgnoredAttributes>;
272def note_riscv_repeated_interrupt_attribute : Note<
273  "repeated RISC-V 'interrupt' attribute is here">;
274def warn_unused_parameter : Warning<"unused parameter %0">,
275  InGroup<UnusedParameter>, DefaultIgnore;
276def warn_unused_variable : Warning<"unused variable %0">,
277  InGroup<UnusedVariable>, DefaultIgnore;
278def warn_unused_local_typedef : Warning<
279  "unused %select{typedef|type alias}0 %1">,
280  InGroup<UnusedLocalTypedef>, DefaultIgnore;
281def warn_unused_property_backing_ivar :
282  Warning<"ivar %0 which backs the property is not "
283  "referenced in this property's accessor">,
284  InGroup<UnusedPropertyIvar>, DefaultIgnore;
285def warn_unused_const_variable : Warning<"unused variable %0">,
286  InGroup<UnusedConstVariable>, DefaultIgnore;
287def warn_unused_exception_param : Warning<"unused exception parameter %0">,
288  InGroup<UnusedExceptionParameter>, DefaultIgnore;
289def warn_decl_in_param_list : Warning<
290  "declaration of %0 will not be visible outside of this function">,
291  InGroup<Visibility>;
292def warn_redefinition_in_param_list : Warning<
293  "redefinition of %0 will not be visible outside of this function">,
294  InGroup<Visibility>;
295def warn_empty_parens_are_function_decl : Warning<
296  "empty parentheses interpreted as a function declaration">,
297  InGroup<VexingParse>;
298def warn_parens_disambiguated_as_function_declaration : Warning<
299  "parentheses were disambiguated as a function declaration">,
300  InGroup<VexingParse>;
301def warn_parens_disambiguated_as_variable_declaration : Warning<
302  "parentheses were disambiguated as redundant parentheses around declaration "
303  "of variable named %0">, InGroup<VexingParse>;
304def warn_redundant_parens_around_declarator : Warning<
305  "redundant parentheses surrounding declarator">,
306  InGroup<DiagGroup<"redundant-parens">>, DefaultIgnore;
307def note_additional_parens_for_variable_declaration : Note<
308  "add a pair of parentheses to declare a variable">;
309def note_raii_guard_add_name : Note<
310  "add a variable name to declare a %0 initialized with %1">;
311def note_function_style_cast_add_parentheses : Note<
312  "add enclosing parentheses to perform a function-style cast">;
313def note_remove_parens_for_variable_declaration : Note<
314  "remove parentheses to silence this warning">;
315def note_empty_parens_function_call : Note<
316  "change this ',' to a ';' to call %0">;
317def note_empty_parens_default_ctor : Note<
318  "remove parentheses to declare a variable">;
319def note_empty_parens_zero_initialize : Note<
320  "replace parentheses with an initializer to declare a variable">;
321def warn_unused_function : Warning<"unused function %0">,
322  InGroup<UnusedFunction>, DefaultIgnore;
323def warn_unused_template : Warning<"unused %select{function|variable}0 template %1">,
324  InGroup<UnusedTemplate>, DefaultIgnore;
325def warn_unused_member_function : Warning<"unused member function %0">,
326  InGroup<UnusedMemberFunction>, DefaultIgnore;
327def warn_used_but_marked_unused: Warning<"%0 was marked unused but was used">,
328  InGroup<UsedButMarkedUnused>, DefaultIgnore;
329def warn_unneeded_internal_decl : Warning<
330  "%select{function|variable}0 %1 is not needed and will not be emitted">,
331  InGroup<UnneededInternalDecl>, DefaultIgnore;
332def warn_unneeded_static_internal_decl : Warning<
333  "'static' function %0 declared in header file "
334  "should be declared 'static inline'">,
335  InGroup<UnneededInternalDecl>, DefaultIgnore;
336def warn_unneeded_member_function : Warning<
337  "member function %0 is not needed and will not be emitted">,
338  InGroup<UnneededMemberFunction>, DefaultIgnore;
339def warn_unused_private_field: Warning<"private field %0 is not used">,
340  InGroup<UnusedPrivateField>, DefaultIgnore;
341def warn_unused_lambda_capture: Warning<"lambda capture %0 is not "
342  "%select{used|required to be captured for this use}1">,
343  InGroup<UnusedLambdaCapture>, DefaultIgnore;
344
345def warn_parameter_size: Warning<
346  "%0 is a large (%1 bytes) pass-by-value argument; "
347  "pass it by reference instead ?">, InGroup<LargeByValueCopy>;
348def warn_return_value_size: Warning<
349  "return value of %0 is a large (%1 bytes) pass-by-value object; "
350  "pass it by reference instead ?">, InGroup<LargeByValueCopy>;
351def warn_return_value_udt: Warning<
352  "%0 has C-linkage specified, but returns user-defined type %1 which is "
353  "incompatible with C">, InGroup<ReturnTypeCLinkage>;
354def warn_return_value_udt_incomplete: Warning<
355  "%0 has C-linkage specified, but returns incomplete type %1 which could be "
356  "incompatible with C">, InGroup<ReturnTypeCLinkage>;
357def warn_implicit_function_decl : Warning<
358  "implicit declaration of function %0">,
359  InGroup<ImplicitFunctionDeclare>, DefaultIgnore;
360def ext_implicit_function_decl : ExtWarn<
361  "implicit declaration of function %0 is invalid in C99">,
362  InGroup<ImplicitFunctionDeclare>;
363def note_function_suggestion : Note<"did you mean %0?">;
364
365def err_ellipsis_first_param : Error<
366  "ISO C requires a named parameter before '...'">;
367def err_declarator_need_ident : Error<"declarator requires an identifier">;
368def err_language_linkage_spec_unknown : Error<"unknown linkage language">;
369def err_language_linkage_spec_not_ascii : Error<
370  "string literal in language linkage specifier cannot have an "
371  "encoding-prefix">;
372def ext_use_out_of_scope_declaration : ExtWarn<
373  "use of out-of-scope declaration of %0%select{| whose type is not "
374  "compatible with that of an implicit declaration}1">,
375  InGroup<DiagGroup<"out-of-scope-function">>;
376def err_inline_non_function : Error<
377  "'inline' can only appear on functions%select{| and non-local variables}0">;
378def err_noreturn_non_function : Error<
379  "'_Noreturn' can only appear on functions">;
380def warn_qual_return_type : Warning<
381  "'%0' type qualifier%s1 on return type %plural{1:has|:have}1 no effect">,
382  InGroup<IgnoredQualifiers>, DefaultIgnore;
383def warn_deprecated_redundant_constexpr_static_def : Warning<
384  "out-of-line definition of constexpr static data member is redundant "
385  "in C++17 and is deprecated">,
386  InGroup<Deprecated>, DefaultIgnore;
387
388def warn_decl_shadow :
389  Warning<"declaration shadows a %select{"
390          "local variable|"
391          "variable in %2|"
392          "static data member of %2|"
393          "field of %2|"
394          "typedef in %2|"
395          "type alias in %2}1">,
396  InGroup<Shadow>, DefaultIgnore;
397def warn_decl_shadow_uncaptured_local :
398  Warning<warn_decl_shadow.Text>,
399  InGroup<ShadowUncapturedLocal>, DefaultIgnore;
400def warn_ctor_parm_shadows_field:
401  Warning<"constructor parameter %0 shadows the field %1 of %2">,
402  InGroup<ShadowFieldInConstructor>, DefaultIgnore;
403def warn_modifying_shadowing_decl :
404  Warning<"modifying constructor parameter %0 that shadows a "
405          "field of %1">,
406  InGroup<ShadowFieldInConstructorModified>, DefaultIgnore;
407
408// C++ decomposition declarations
409def err_decomp_decl_context : Error<
410  "decomposition declaration not permitted in this context">;
411def warn_cxx14_compat_decomp_decl : Warning<
412  "decomposition declarations are incompatible with "
413  "C++ standards before C++17">, DefaultIgnore, InGroup<CXXPre17Compat>;
414def ext_decomp_decl : ExtWarn<
415  "decomposition declarations are a C++17 extension">, InGroup<CXX17>;
416def ext_decomp_decl_cond : ExtWarn<
417  "ISO C++17 does not permit structured binding declaration in a condition">,
418  InGroup<DiagGroup<"binding-in-condition">>;
419def err_decomp_decl_spec : Error<
420  "decomposition declaration cannot be declared "
421  "%plural{1:'%1'|:with '%1' specifiers}0">;
422def ext_decomp_decl_spec : ExtWarn<
423  "decomposition declaration declared "
424  "%plural{1:'%1'|:with '%1' specifiers}0 is a C++2a extension">,
425  InGroup<CXX2a>;
426def warn_cxx17_compat_decomp_decl_spec : Warning<
427  "decomposition declaration declared "
428  "%plural{1:'%1'|:with '%1' specifiers}0 "
429  "is incompatible with C++ standards before C++2a">,
430  InGroup<CXXPre2aCompat>, DefaultIgnore;
431def err_decomp_decl_type : Error<
432  "decomposition declaration cannot be declared with type %0; "
433  "declared type must be 'auto' or reference to 'auto'">;
434def err_decomp_decl_parens : Error<
435  "decomposition declaration cannot be declared with parentheses">;
436def err_decomp_decl_template : Error<
437  "decomposition declaration template not supported">;
438def err_decomp_decl_not_alone : Error<
439  "decomposition declaration must be the only declaration in its group">;
440def err_decomp_decl_requires_init : Error<
441  "decomposition declaration %0 requires an initializer">;
442def err_decomp_decl_wrong_number_bindings : Error<
443  "type %0 decomposes into %2 elements, but %select{only |}3%1 "
444  "names were provided">;
445def err_decomp_decl_unbindable_type : Error<
446  "cannot decompose %select{union|non-class, non-array}1 type %2">;
447def err_decomp_decl_multiple_bases_with_members : Error<
448  "cannot decompose class type %1: "
449  "%select{its base classes %2 and|both it and its base class}0 %3 "
450  "have non-static data members">;
451def err_decomp_decl_ambiguous_base : Error<
452  "cannot decompose members of ambiguous base class %1 of %0:%2">;
453def err_decomp_decl_inaccessible_base : Error<
454  "cannot decompose members of inaccessible base class %1 of %0">,
455  AccessControl;
456def err_decomp_decl_inaccessible_field : Error<
457  "cannot decompose %select{private|protected}0 member %1 of %3">,
458  AccessControl;
459def err_decomp_decl_anon_union_member : Error<
460  "cannot decompose class type %0 because it has an anonymous "
461  "%select{struct|union}1 member">;
462def err_decomp_decl_std_tuple_element_not_specialized : Error<
463  "cannot decompose this type; 'std::tuple_element<%0>::type' "
464  "does not name a type">;
465def err_decomp_decl_std_tuple_size_not_constant : Error<
466  "cannot decompose this type; 'std::tuple_size<%0>::value' "
467  "is not a valid integral constant expression">;
468def note_in_binding_decl_init : Note<
469  "in implicit initialization of binding declaration %0">;
470
471def err_std_type_trait_not_class_template : Error<
472  "unsupported standard library implementation: "
473  "'std::%0' is not a class template">;
474
475// C++ using declarations
476def err_using_requires_qualname : Error<
477  "using declaration requires a qualified name">;
478def err_using_typename_non_type : Error<
479  "'typename' keyword used on a non-type">;
480def err_using_dependent_value_is_type : Error<
481  "dependent using declaration resolved to type without 'typename'">;
482def err_using_decl_nested_name_specifier_is_not_class : Error<
483  "using declaration in class refers into '%0', which is not a class">;
484def err_using_decl_nested_name_specifier_is_current_class : Error<
485  "using declaration refers to its own class">;
486def err_using_decl_nested_name_specifier_is_not_base_class : Error<
487  "using declaration refers into '%0', which is not a base class of %1">;
488def err_using_decl_constructor_not_in_direct_base : Error<
489  "%0 is not a direct base of %1, cannot inherit constructors">;
490def err_using_decl_can_not_refer_to_class_member : Error<
491  "using declaration cannot refer to class member">;
492def err_ambiguous_inherited_constructor : Error<
493  "constructor of %0 inherited from multiple base class subobjects">;
494def note_ambiguous_inherited_constructor_using : Note<
495  "inherited from base class %0 here">;
496def note_using_decl_class_member_workaround : Note<
497  "use %select{an alias declaration|a typedef declaration|a reference|"
498  "a const variable|a constexpr variable}0 instead">;
499def err_using_decl_can_not_refer_to_namespace : Error<
500  "using declaration cannot refer to a namespace">;
501def err_using_decl_can_not_refer_to_scoped_enum : Error<
502  "using declaration cannot refer to a scoped enumerator">;
503def err_using_decl_constructor : Error<
504  "using declaration cannot refer to a constructor">;
505def warn_cxx98_compat_using_decl_constructor : Warning<
506  "inheriting constructors are incompatible with C++98">,
507  InGroup<CXX98Compat>, DefaultIgnore;
508def err_using_decl_destructor : Error<
509  "using declaration cannot refer to a destructor">;
510def err_using_decl_template_id : Error<
511  "using declaration cannot refer to a template specialization">;
512def note_using_decl_target : Note<"target of using declaration">;
513def note_using_decl_conflict : Note<"conflicting declaration">;
514def err_using_decl_redeclaration : Error<"redeclaration of using declaration">;
515def err_using_decl_conflict : Error<
516  "target of using declaration conflicts with declaration already in scope">;
517def err_using_decl_conflict_reverse : Error<
518  "declaration conflicts with target of using declaration already in scope">;
519def note_using_decl : Note<"%select{|previous }0using declaration">;
520def err_using_decl_redeclaration_expansion : Error<
521  "using declaration pack expansion at block scope produces multiple values">;
522
523def warn_access_decl_deprecated : Warning<
524  "access declarations are deprecated; use using declarations instead">,
525  InGroup<Deprecated>;
526def err_access_decl : Error<
527  "ISO C++11 does not allow access declarations; "
528  "use using declarations instead">;
529def warn_deprecated_copy_operation : Warning<
530  "definition of implicit copy %select{constructor|assignment operator}1 "
531  "for %0 is deprecated because it has a user-declared "
532  "%select{copy %select{assignment operator|constructor}1|destructor}2">,
533  InGroup<Deprecated>, DefaultIgnore;
534def warn_cxx17_compat_exception_spec_in_signature : Warning<
535  "mangled name of %0 will change in C++17 due to non-throwing exception "
536  "specification in function signature">, InGroup<CXX17CompatMangling>;
537
538def warn_global_constructor : Warning<
539  "declaration requires a global constructor">,
540  InGroup<GlobalConstructors>, DefaultIgnore;
541def warn_global_destructor : Warning<
542  "declaration requires a global destructor">,
543   InGroup<GlobalConstructors>, DefaultIgnore;
544def warn_exit_time_destructor : Warning<
545  "declaration requires an exit-time destructor">,
546  InGroup<ExitTimeDestructors>, DefaultIgnore;
547
548def err_invalid_thread : Error<
549  "'%0' is only allowed on variable declarations">;
550def err_thread_non_global : Error<
551  "'%0' variables must have global storage">;
552def err_thread_unsupported : Error<
553  "thread-local storage is not supported for the current target">;
554
555def warn_maybe_falloff_nonvoid_function : Warning<
556  "control may reach end of non-void function">,
557  InGroup<ReturnType>;
558def warn_falloff_nonvoid_function : Warning<
559  "control reaches end of non-void function">,
560  InGroup<ReturnType>;
561def err_maybe_falloff_nonvoid_block : Error<
562  "control may reach end of non-void block">;
563def err_falloff_nonvoid_block : Error<
564  "control reaches end of non-void block">;
565def warn_maybe_falloff_nonvoid_coroutine : Warning<
566  "control may reach end of coroutine; which is undefined behavior because the promise type %0 does not declare 'return_void()'">,
567  InGroup<ReturnType>;
568def warn_falloff_nonvoid_coroutine : Warning<
569  "control reaches end of coroutine; which is undefined behavior because the promise type %0 does not declare 'return_void()'">,
570  InGroup<ReturnType>;
571def warn_suggest_noreturn_function : Warning<
572  "%select{function|method}0 %1 could be declared with attribute 'noreturn'">,
573  InGroup<MissingNoreturn>, DefaultIgnore;
574def warn_suggest_noreturn_block : Warning<
575  "block could be declared with attribute 'noreturn'">,
576  InGroup<MissingNoreturn>, DefaultIgnore;
577
578// Unreachable code.
579def warn_unreachable : Warning<
580  "code will never be executed">,
581  InGroup<UnreachableCode>, DefaultIgnore;
582def warn_unreachable_break : Warning<
583  "'break' will never be executed">,
584  InGroup<UnreachableCodeBreak>, DefaultIgnore;
585def warn_unreachable_return : Warning<
586  "'return' will never be executed">,
587  InGroup<UnreachableCodeReturn>, DefaultIgnore;
588def warn_unreachable_loop_increment : Warning<
589  "loop will run at most once (loop increment never executed)">,
590  InGroup<UnreachableCodeLoopIncrement>, DefaultIgnore;
591def note_unreachable_silence : Note<
592  "silence by adding parentheses to mark code as explicitly dead">;
593
594/// Built-in functions.
595def ext_implicit_lib_function_decl : ExtWarn<
596  "implicitly declaring library function '%0' with type %1">,
597  InGroup<ImplicitFunctionDeclare>;
598def note_include_header_or_declare : Note<
599  "include the header <%0> or explicitly provide a declaration for '%1'">;
600def note_previous_builtin_declaration : Note<"%0 is a builtin with type %1">;
601def warn_implicit_decl_no_jmp_buf
602    : Warning<"declaration of built-in function '%0' requires the declaration"
603    " of the 'jmp_buf' type, commonly provided in the header <setjmp.h>.">,
604      InGroup<DiagGroup<"incomplete-setjmp-declaration">>;
605def warn_implicit_decl_requires_sysheader : Warning<
606  "declaration of built-in function '%1' requires inclusion of the header <%0>">,
607  InGroup<BuiltinRequiresHeader>;
608def warn_redecl_library_builtin : Warning<
609  "incompatible redeclaration of library function %0">,
610  InGroup<DiagGroup<"incompatible-library-redeclaration">>;
611def err_builtin_definition : Error<"definition of builtin function %0">;
612def err_builtin_redeclare : Error<"cannot redeclare builtin function %0">;
613def err_arm_invalid_specialreg : Error<"invalid special register for builtin">;
614def err_invalid_cpu_supports : Error<"invalid cpu feature string for builtin">;
615def err_invalid_cpu_is : Error<"invalid cpu name for builtin">;
616def err_invalid_cpu_specific_dispatch_value : Error<
617"invalid option '%0' for %select{cpu_specific|cpu_dispatch}1">;
618def warn_builtin_unknown : Warning<"use of unknown builtin %0">,
619  InGroup<ImplicitFunctionDeclare>, DefaultError;
620def warn_cstruct_memaccess : Warning<
621  "%select{destination for|source of|first operand of|second operand of}0 this "
622  "%1 call is a pointer to record %2 that is not trivial to "
623  "%select{primitive-default-initialize|primitive-copy}3">,
624  InGroup<NonTrivialMemaccess>;
625def note_nontrivial_field : Note<
626  "field is non-trivial to %select{copy|default-initialize}0">;
627def err_non_trivial_c_union_in_invalid_context : Error<
628  "cannot %select{"
629  "use type %1 for a function/method parameter|"
630  "use type %1 for function/method return|"
631  "default-initialize an object of type %1|"
632  "declare an automatic variable of type %1|"
633  "copy-initialize an object of type %1|"
634  "assign to a variable of type %1|"
635  "construct an automatic compound literal of type %1|"
636  "capture a variable of type %1|"
637  "cannot use volatile type %1 where it causes an lvalue-to-rvalue conversion"
638  "}3 "
639  "since it %select{contains|is}2 a union that is non-trivial to "
640  "%select{default-initialize|destruct|copy}0">;
641def note_non_trivial_c_union : Note<
642  "%select{%2 has subobjects that are|%3 has type %2 that is}0 "
643  "non-trivial to %select{default-initialize|destruct|copy}1">;
644def warn_dyn_class_memaccess : Warning<
645  "%select{destination for|source of|first operand of|second operand of}0 this "
646  "%1 call is a pointer to %select{|class containing a }2dynamic class %3; "
647  "vtable pointer will be %select{overwritten|copied|moved|compared}4">,
648  InGroup<DynamicClassMemaccess>;
649def note_bad_memaccess_silence : Note<
650  "explicitly cast the pointer to silence this warning">;
651def warn_sizeof_pointer_expr_memaccess : Warning<
652  "'%0' call operates on objects of type %1 while the size is based on a "
653  "different type %2">,
654  InGroup<SizeofPointerMemaccess>;
655def warn_sizeof_pointer_expr_memaccess_note : Note<
656  "did you mean to %select{dereference the argument to 'sizeof' (and multiply "
657  "it by the number of elements)|remove the addressof in the argument to "
658  "'sizeof' (and multiply it by the number of elements)|provide an explicit "
659  "length}0?">;
660def warn_sizeof_pointer_type_memaccess : Warning<
661  "argument to 'sizeof' in %0 call is the same pointer type %1 as the "
662  "%select{destination|source}2; expected %3 or an explicit length">,
663  InGroup<SizeofPointerMemaccess>;
664def warn_strlcpycat_wrong_size : Warning<
665  "size argument in %0 call appears to be size of the source; "
666  "expected the size of the destination">,
667  InGroup<DiagGroup<"strlcpy-strlcat-size">>;
668def note_strlcpycat_wrong_size : Note<
669  "change size argument to be the size of the destination">;
670def warn_memsize_comparison : Warning<
671  "size argument in %0 call is a comparison">,
672  InGroup<DiagGroup<"memsize-comparison">>;
673def note_memsize_comparison_paren : Note<
674  "did you mean to compare the result of %0 instead?">;
675def note_memsize_comparison_cast_silence : Note<
676  "explicitly cast the argument to size_t to silence this warning">;
677def warn_suspicious_sizeof_memset : Warning<
678  "%select{'size' argument to memset is '0'|"
679  "setting buffer to a 'sizeof' expression}0"
680  "; did you mean to transpose the last two arguments?">,
681  InGroup<MemsetTransposedArgs>;
682def note_suspicious_sizeof_memset_silence : Note<
683  "%select{parenthesize the third argument|"
684  "cast the second argument to 'int'}0 to silence">;
685def warn_suspicious_bzero_size : Warning<"'size' argument to bzero is '0'">,
686  InGroup<SuspiciousBzero>;
687def note_suspicious_bzero_size_silence : Note<
688  "parenthesize the second argument to silence">;
689
690def warn_strncat_large_size : Warning<
691  "the value of the size argument in 'strncat' is too large, might lead to a "
692  "buffer overflow">, InGroup<StrncatSize>;
693def warn_strncat_src_size : Warning<"size argument in 'strncat' call appears "
694  "to be size of the source">, InGroup<StrncatSize>;
695def warn_strncat_wrong_size : Warning<
696  "the value of the size argument to 'strncat' is wrong">, InGroup<StrncatSize>;
697def note_strncat_wrong_size : Note<
698  "change the argument to be the free space in the destination buffer minus "
699  "the terminating null byte">;
700
701def warn_assume_side_effects : Warning<
702  "the argument to %0 has side effects that will be discarded">,
703  InGroup<DiagGroup<"assume">>;
704
705def warn_builtin_chk_overflow : Warning<
706  "'%0' will always overflow; destination buffer has size %1,"
707  " but size argument is %2">,
708  InGroup<DiagGroup<"builtin-memcpy-chk-size">>;
709
710def warn_fortify_source_overflow
711  : Warning<warn_builtin_chk_overflow.Text>, InGroup<FortifySource>;
712def warn_fortify_source_size_mismatch : Warning<
713  "'%0' size argument is too large; destination buffer has size %1,"
714  " but size argument is %2">, InGroup<FortifySource>;
715
716/// main()
717// static main() is not an error in C, just in C++.
718def warn_static_main : Warning<"'main' should not be declared static">,
719    InGroup<Main>;
720def err_static_main : Error<"'main' is not allowed to be declared static">;
721def err_inline_main : Error<"'main' is not allowed to be declared inline">;
722def ext_variadic_main : ExtWarn<
723  "'main' is not allowed to be declared variadic">, InGroup<Main>;
724def ext_noreturn_main : ExtWarn<
725  "'main' is not allowed to be declared _Noreturn">, InGroup<Main>;
726def note_main_remove_noreturn : Note<"remove '_Noreturn'">;
727def err_constexpr_main : Error<
728  "'main' is not allowed to be declared %select{constexpr|consteval}0">;
729def err_deleted_main : Error<"'main' is not allowed to be deleted">;
730def err_mainlike_template_decl : Error<"%0 cannot be a template">;
731def err_main_returns_nonint : Error<"'main' must return 'int'">;
732def ext_main_returns_nonint : ExtWarn<"return type of 'main' is not 'int'">,
733    InGroup<MainReturnType>;
734def note_main_change_return_type : Note<"change return type to 'int'">;
735def err_main_surplus_args : Error<"too many parameters (%0) for 'main': "
736    "must be 0, 2, or 3">;
737def warn_main_one_arg : Warning<"only one parameter on 'main' declaration">,
738    InGroup<Main>;
739def err_main_arg_wrong : Error<"%select{first|second|third|fourth}0 "
740    "parameter of 'main' (%select{argument count|argument array|environment|"
741    "platform-specific data}0) must be of type %1">;
742def warn_main_returns_bool_literal : Warning<"bool literal returned from "
743    "'main'">, InGroup<Main>;
744def err_main_global_variable :
745    Error<"main cannot be declared as global variable">;
746def warn_main_redefined : Warning<"variable named 'main' with external linkage "
747    "has undefined behavior">, InGroup<Main>;
748def ext_main_used : Extension<
749  "ISO C++ does not allow 'main' to be used by a program">, InGroup<Main>;
750
751/// parser diagnostics
752def ext_no_declarators : ExtWarn<"declaration does not declare anything">,
753  InGroup<MissingDeclarations>;
754def ext_typedef_without_a_name : ExtWarn<"typedef requires a name">,
755  InGroup<MissingDeclarations>;
756def err_typedef_not_identifier : Error<"typedef name must be an identifier">;
757def err_typedef_changes_linkage : Error<"unsupported: typedef changes linkage"
758  " of anonymous type, but linkage was already computed">;
759def note_typedef_changes_linkage : Note<"use a tag name here to establish "
760  "linkage prior to definition">;
761def err_statically_allocated_object : Error<
762  "interface type cannot be statically allocated">;
763def err_object_cannot_be_passed_returned_by_value : Error<
764  "interface type %1 cannot be %select{returned|passed}0 by value"
765  "; did you forget * in %1?">;
766def err_parameters_retval_cannot_have_fp16_type : Error<
767  "%select{parameters|function return value}0 cannot have __fp16 type; did you forget * ?">;
768def err_opencl_half_load_store : Error<
769  "%select{loading directly from|assigning directly to}0 pointer to type %1 requires "
770  "cl_khr_fp16. Use vector data %select{load|store}0 builtin functions instead">;
771def err_opencl_cast_to_half : Error<"casting to type %0 is not allowed">;
772def err_opencl_half_declaration : Error<
773  "declaring variable of type %0 is not allowed">;
774def err_opencl_half_param : Error<
775  "declaring function parameter of type %0 is not allowed; did you forget * ?">;
776def err_opencl_invalid_return : Error<
777  "declaring function return value of type %0 is not allowed %select{; did you forget * ?|}1">;
778def warn_enum_value_overflow : Warning<"overflow in enumeration value">;
779def warn_pragma_options_align_reset_failed : Warning<
780  "#pragma options align=reset failed: %0">,
781  InGroup<IgnoredPragmas>;
782def err_pragma_options_align_mac68k_target_unsupported : Error<
783  "mac68k alignment pragma is not supported on this target">;
784def warn_pragma_pack_invalid_alignment : Warning<
785  "expected #pragma pack parameter to be '1', '2', '4', '8', or '16'">,
786  InGroup<IgnoredPragmas>;
787def warn_pragma_pack_non_default_at_include : Warning<
788  "non-default #pragma pack value changes the alignment of struct or union "
789  "members in the included file">, InGroup<PragmaPackSuspiciousInclude>,
790  DefaultIgnore;
791def warn_pragma_pack_modified_after_include : Warning<
792  "the current #pragma pack alignment value is modified in the included "
793  "file">, InGroup<PragmaPack>;
794def warn_pragma_pack_no_pop_eof : Warning<"unterminated "
795  "'#pragma pack (push, ...)' at end of file">, InGroup<PragmaPack>;
796def note_pragma_pack_here : Note<
797  "previous '#pragma pack' directive that modifies alignment is here">;
798def note_pragma_pack_pop_instead_reset : Note<
799  "did you intend to use '#pragma pack (pop)' instead of '#pragma pack()'?">;
800// Follow the Microsoft implementation.
801def warn_pragma_pack_show : Warning<"value of #pragma pack(show) == %0">;
802def warn_pragma_pack_pop_identifier_and_alignment : Warning<
803  "specifying both a name and alignment to 'pop' is undefined">;
804def warn_pragma_pop_failed : Warning<"#pragma %0(pop, ...) failed: %1">,
805  InGroup<IgnoredPragmas>;
806def warn_cxx_ms_struct :
807  Warning<"ms_struct may not produce Microsoft-compatible layouts for classes "
808          "with base classes or virtual functions">,
809  DefaultError, InGroup<IncompatibleMSStruct>;
810def err_section_conflict : Error<"%0 causes a section type conflict with %1">;
811def err_no_base_classes : Error<"invalid use of '__super', %0 has no base classes">;
812def err_invalid_super_scope : Error<"invalid use of '__super', "
813  "this keyword can only be used inside class or member function scope">;
814def err_super_in_lambda_unsupported : Error<
815  "use of '__super' inside a lambda is unsupported">;
816
817def warn_pragma_unused_undeclared_var : Warning<
818  "undeclared variable %0 used as an argument for '#pragma unused'">,
819  InGroup<IgnoredPragmas>;
820def warn_atl_uuid_deprecated : Warning<
821  "specifying 'uuid' as an ATL attribute is deprecated; use __declspec instead">,
822  InGroup<DeprecatedDeclarations>;
823def warn_pragma_unused_expected_var_arg : Warning<
824  "only variables can be arguments to '#pragma unused'">,
825  InGroup<IgnoredPragmas>;
826def err_pragma_push_visibility_mismatch : Error<
827  "#pragma visibility push with no matching #pragma visibility pop">;
828def note_surrounding_namespace_ends_here : Note<
829  "surrounding namespace with visibility attribute ends here">;
830def err_pragma_pop_visibility_mismatch : Error<
831  "#pragma visibility pop with no matching #pragma visibility push">;
832def note_surrounding_namespace_starts_here : Note<
833  "surrounding namespace with visibility attribute starts here">;
834def err_pragma_loop_invalid_argument_type : Error<
835  "invalid argument of type %0; expected an integer type">;
836def err_pragma_loop_invalid_argument_value : Error<
837  "%select{invalid value '%0'; must be positive|value '%0' is too large}1">;
838def err_pragma_loop_compatibility : Error<
839  "%select{incompatible|duplicate}0 directives '%1' and '%2'">;
840def err_pragma_loop_precedes_nonloop : Error<
841  "expected a for, while, or do-while loop to follow '%0'">;
842
843def err_pragma_attribute_matcher_subrule_contradicts_rule : Error<
844  "redundant attribute subject matcher sub-rule '%0'; '%1' already matches "
845  "those declarations">;
846def err_pragma_attribute_matcher_negated_subrule_contradicts_subrule : Error<
847  "negated attribute subject matcher sub-rule '%0' contradicts sub-rule '%1'">;
848def err_pragma_attribute_invalid_matchers : Error<
849  "attribute %0 can't be applied to %1">;
850def err_pragma_attribute_stack_mismatch : Error<
851  "'#pragma clang attribute %select{%1.|}0pop' with no matching"
852  " '#pragma clang attribute %select{%1.|}0push'">;
853def warn_pragma_attribute_unused : Warning<
854  "unused attribute %0 in '#pragma clang attribute push' region">,
855  InGroup<PragmaClangAttribute>;
856def note_pragma_attribute_region_ends_here : Note<
857  "'#pragma clang attribute push' regions ends here">;
858def err_pragma_attribute_no_pop_eof : Error<"unterminated "
859  "'#pragma clang attribute push' at end of file">;
860def note_pragma_attribute_applied_decl_here : Note<
861  "when applied to this declaration">;
862def err_pragma_attr_attr_no_push : Error<
863  "'#pragma clang attribute' attribute with no matching "
864  "'#pragma clang attribute push'">;
865
866/// Objective-C parser diagnostics
867def err_duplicate_class_def : Error<
868  "duplicate interface definition for class %0">;
869def err_undef_superclass : Error<
870  "cannot find interface declaration for %0, superclass of %1">;
871def err_forward_superclass : Error<
872  "attempting to use the forward class %0 as superclass of %1">;
873def err_no_nsconstant_string_class : Error<
874  "cannot find interface declaration for %0">;
875def err_recursive_superclass : Error<
876  "trying to recursively use %0 as superclass of %1">;
877def err_conflicting_aliasing_type : Error<"conflicting types for alias %0">;
878def warn_undef_interface : Warning<"cannot find interface declaration for %0">;
879def warn_duplicate_protocol_def : Warning<
880  "duplicate protocol definition of %0 is ignored">,
881  InGroup<DiagGroup<"duplicate-protocol">>;
882def err_protocol_has_circular_dependency : Error<
883  "protocol has circular dependency">;
884def err_undeclared_protocol : Error<"cannot find protocol declaration for %0">;
885def warn_undef_protocolref : Warning<"cannot find protocol definition for %0">;
886def err_atprotocol_protocol : Error<
887  "@protocol is using a forward protocol declaration of %0">;
888def warn_readonly_property : Warning<
889  "attribute 'readonly' of property %0 restricts attribute "
890  "'readwrite' of property inherited from %1">,
891  InGroup<PropertyAttr>;
892
893def warn_property_attribute : Warning<
894  "'%1' attribute on property %0 does not match the property inherited from %2">,
895  InGroup<PropertyAttr>;
896def warn_property_types_are_incompatible : Warning<
897  "property type %0 is incompatible with type %1 inherited from %2">,
898  InGroup<DiagGroup<"incompatible-property-type">>;
899def warn_protocol_property_mismatch : Warning<
900  "property %select{of type %1|with attribute '%1'|without attribute '%1'|with "
901  "getter %1|with setter %1}0 was selected for synthesis">,
902  InGroup<DiagGroup<"protocol-property-synthesis-ambiguity">>;
903def err_protocol_property_mismatch: Error<warn_protocol_property_mismatch.Text>;
904def err_undef_interface : Error<"cannot find interface declaration for %0">;
905def err_category_forward_interface : Error<
906  "cannot define %select{category|class extension}0 for undefined class %1">;
907def err_class_extension_after_impl : Error<
908  "cannot declare class extension for %0 after class implementation">;
909def note_implementation_declared : Note<
910  "class implementation is declared here">;
911def note_while_in_implementation : Note<
912  "detected while default synthesizing properties in class implementation">;
913def note_class_declared : Note<
914  "class is declared here">;
915def note_receiver_class_declared : Note<
916  "receiver is instance of class declared here">;
917def note_receiver_expr_here : Note<
918  "receiver expression is here">;
919def note_receiver_is_id : Note<
920  "receiver is treated with 'id' type for purpose of method lookup">;
921def note_suppressed_class_declare : Note<
922  "class with specified objc_requires_property_definitions attribute is declared here">;
923def err_objc_root_class_subclass : Error<
924  "objc_root_class attribute may only be specified on a root class declaration">;
925def err_restricted_superclass_mismatch : Error<
926  "cannot subclass a class that was declared with the "
927  "'objc_subclassing_restricted' attribute">;
928def err_class_stub_subclassing_mismatch : Error<
929  "'objc_class_stub' attribute cannot be specified on a class that does not "
930  "have the 'objc_subclassing_restricted' attribute">;
931def err_implementation_of_class_stub : Error<
932  "cannot declare implementation of a class declared with the "
933  "'objc_class_stub' attribute">;
934def warn_objc_root_class_missing : Warning<
935  "class %0 defined without specifying a base class">,
936  InGroup<ObjCRootClass>;
937def err_objc_runtime_visible_category : Error<
938  "cannot implement a category for class %0 that is only visible via the "
939  "Objective-C runtime">;
940def err_objc_runtime_visible_subclass : Error<
941  "cannot implement subclass %0 of a superclass %1 that is only visible via the "
942  "Objective-C runtime">;
943def note_objc_needs_superclass : Note<
944  "add a super class to fix this problem">;
945def err_conflicting_super_class : Error<"conflicting super class name %0">;
946def err_dup_implementation_class : Error<"reimplementation of class %0">;
947def err_dup_implementation_category : Error<
948  "reimplementation of category %1 for class %0">;
949def err_conflicting_ivar_type : Error<
950  "instance variable %0 has conflicting type%diff{: $ vs $|}1,2">;
951def err_duplicate_ivar_declaration : Error<
952  "instance variable is already declared">;
953def warn_on_superclass_use : Warning<
954  "class implementation may not have super class">;
955def err_conflicting_ivar_bitwidth : Error<
956  "instance variable %0 has conflicting bit-field width">;
957def err_conflicting_ivar_name : Error<
958  "conflicting instance variable names: %0 vs %1">;
959def err_inconsistent_ivar_count : Error<
960  "inconsistent number of instance variables specified">;
961def warn_undef_method_impl : Warning<"method definition for %0 not found">,
962  InGroup<DiagGroup<"incomplete-implementation">>;
963def warn_objc_boxing_invalid_utf8_string : Warning<
964  "string is ill-formed as UTF-8 and will become a null %0 when boxed">,
965  InGroup<ObjCBoxing>;
966
967def warn_conflicting_overriding_ret_types : Warning<
968  "conflicting return type in "
969  "declaration of %0%diff{: $ vs $|}1,2">,
970  InGroup<OverridingMethodMismatch>, DefaultIgnore;
971
972def warn_conflicting_ret_types : Warning<
973  "conflicting return type in "
974  "implementation of %0%diff{: $ vs $|}1,2">,
975  InGroup<MismatchedReturnTypes>;
976
977def warn_conflicting_overriding_ret_type_modifiers : Warning<
978  "conflicting distributed object modifiers on return type "
979  "in declaration of %0">,
980  InGroup<OverridingMethodMismatch>, DefaultIgnore;
981
982def warn_conflicting_ret_type_modifiers : Warning<
983  "conflicting distributed object modifiers on return type "
984  "in implementation of %0">,
985  InGroup<DistributedObjectModifiers>;
986
987def warn_non_covariant_overriding_ret_types : Warning<
988  "conflicting return type in "
989  "declaration of %0: %1 vs %2">,
990  InGroup<OverridingMethodMismatch>, DefaultIgnore;
991
992def warn_non_covariant_ret_types : Warning<
993  "conflicting return type in "
994  "implementation of %0: %1 vs %2">,
995  InGroup<MethodSignatures>, DefaultIgnore;
996
997def warn_conflicting_overriding_param_types : Warning<
998  "conflicting parameter types in "
999  "declaration of %0%diff{: $ vs $|}1,2">,
1000  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1001
1002def warn_conflicting_param_types : Warning<
1003  "conflicting parameter types in "
1004  "implementation of %0%diff{: $ vs $|}1,2">,
1005  InGroup<MismatchedParameterTypes>;
1006
1007def warn_conflicting_param_modifiers : Warning<
1008  "conflicting distributed object modifiers on parameter type "
1009  "in implementation of %0">,
1010  InGroup<DistributedObjectModifiers>;
1011
1012def warn_conflicting_overriding_param_modifiers : Warning<
1013  "conflicting distributed object modifiers on parameter type "
1014  "in declaration of %0">,
1015  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1016
1017def warn_non_contravariant_overriding_param_types : Warning<
1018  "conflicting parameter types in "
1019  "declaration of %0: %1 vs %2">,
1020  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1021
1022def warn_non_contravariant_param_types : Warning<
1023  "conflicting parameter types in "
1024  "implementation of %0: %1 vs %2">,
1025  InGroup<MethodSignatures>, DefaultIgnore;
1026
1027def warn_conflicting_overriding_variadic :Warning<
1028  "conflicting variadic declaration of method and its "
1029  "implementation">,
1030  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1031
1032def warn_conflicting_variadic :Warning<
1033  "conflicting variadic declaration of method and its "
1034  "implementation">;
1035
1036def warn_category_method_impl_match:Warning<
1037  "category is implementing a method which will also be implemented"
1038  " by its primary class">, InGroup<ObjCProtocolMethodImpl>;
1039
1040def warn_implements_nscopying : Warning<
1041"default assign attribute on property %0 which implements "
1042"NSCopying protocol is not appropriate with -fobjc-gc[-only]">;
1043
1044def warn_multiple_method_decl : Warning<"multiple methods named %0 found">,
1045  InGroup<ObjCMultipleMethodNames>;
1046def warn_strict_multiple_method_decl : Warning<
1047  "multiple methods named %0 found">, InGroup<StrictSelector>, DefaultIgnore;
1048def warn_accessor_property_type_mismatch : Warning<
1049  "type of property %0 does not match type of accessor %1">;
1050def note_conv_function_declared_at : Note<"type conversion function declared here">;
1051def note_method_declared_at : Note<"method %0 declared here">;
1052def note_property_attribute : Note<"property %0 is declared "
1053  "%select{deprecated|unavailable|partial}1 here">;
1054def err_setter_type_void : Error<"type of setter must be void">;
1055def err_duplicate_method_decl : Error<"duplicate declaration of method %0">;
1056def warn_duplicate_method_decl :
1057  Warning<"multiple declarations of method %0 found and ignored">,
1058  InGroup<MethodDuplicate>, DefaultIgnore;
1059def warn_objc_cdirective_format_string :
1060  Warning<"using %0 directive in %select{NSString|CFString}1 "
1061          "which is being passed as a formatting argument to the formatting "
1062          "%select{method|CFfunction}2">,
1063  InGroup<ObjCCStringFormat>, DefaultIgnore;
1064def err_objc_var_decl_inclass :
1065    Error<"cannot declare variable inside @interface or @protocol">;
1066def err_missing_method_context : Error<
1067  "missing context for method declaration">;
1068def err_objc_property_attr_mutually_exclusive : Error<
1069  "property attributes '%0' and '%1' are mutually exclusive">;
1070def err_objc_property_requires_object : Error<
1071  "property with '%0' attribute must be of object type">;
1072def warn_objc_property_assign_on_object : Warning<
1073  "'assign' property of object type may become a dangling reference; consider using 'unsafe_unretained'">,
1074  InGroup<ObjCPropertyAssignOnObjectType>, DefaultIgnore;
1075def warn_objc_property_no_assignment_attribute : Warning<
1076  "no 'assign', 'retain', or 'copy' attribute is specified - "
1077  "'assign' is assumed">,
1078  InGroup<ObjCPropertyNoAttribute>;
1079def warn_objc_isa_use : Warning<
1080  "direct access to Objective-C's isa is deprecated in favor of "
1081  "object_getClass()">, InGroup<DeprecatedObjCIsaUsage>;
1082def warn_objc_isa_assign : Warning<
1083  "assignment to Objective-C's isa is deprecated in favor of "
1084  "object_setClass()">, InGroup<DeprecatedObjCIsaUsage>;
1085def warn_objc_pointer_masking : Warning<
1086  "bitmasking for introspection of Objective-C object pointers is strongly "
1087  "discouraged">,
1088  InGroup<ObjCPointerIntrospect>;
1089def warn_objc_pointer_masking_performSelector : Warning<warn_objc_pointer_masking.Text>,
1090  InGroup<ObjCPointerIntrospectPerformSelector>;
1091def warn_objc_property_default_assign_on_object : Warning<
1092  "default property attribute 'assign' not appropriate for object">,
1093  InGroup<ObjCPropertyNoAttribute>;
1094def warn_property_attr_mismatch : Warning<
1095  "property attribute in class extension does not match the primary class">,
1096  InGroup<PropertyAttr>;
1097def warn_property_implicitly_mismatched : Warning <
1098  "primary property declaration is implicitly strong while redeclaration "
1099  "in class extension is weak">,
1100  InGroup<DiagGroup<"objc-property-implicit-mismatch">>;
1101def warn_objc_property_copy_missing_on_block : Warning<
1102    "'copy' attribute must be specified for the block property "
1103    "when -fobjc-gc-only is specified">;
1104def warn_objc_property_retain_of_block : Warning<
1105    "retain'ed block property does not copy the block "
1106    "- use copy attribute instead">, InGroup<ObjCRetainBlockProperty>;
1107def warn_objc_readonly_property_has_setter : Warning<
1108    "setter cannot be specified for a readonly property">,
1109    InGroup<ObjCReadonlyPropertyHasSetter>;
1110def warn_atomic_property_rule : Warning<
1111  "writable atomic property %0 cannot pair a synthesized %select{getter|setter}1 "
1112  "with a user defined %select{getter|setter}2">,
1113  InGroup<DiagGroup<"atomic-property-with-user-defined-accessor">>;
1114def note_atomic_property_fixup_suggest : Note<"setter and getter must both be "
1115  "synthesized, or both be user defined,or the property must be nonatomic">;
1116def err_atomic_property_nontrivial_assign_op : Error<
1117  "atomic property of reference type %0 cannot have non-trivial assignment"
1118  " operator">;
1119def warn_cocoa_naming_owned_rule : Warning<
1120  "property follows Cocoa naming"
1121  " convention for returning 'owned' objects">,
1122  InGroup<DiagGroup<"objc-property-matches-cocoa-ownership-rule">>;
1123def err_cocoa_naming_owned_rule : Error<
1124  "property follows Cocoa naming"
1125  " convention for returning 'owned' objects">;
1126def note_cocoa_naming_declare_family : Note<
1127  "explicitly declare getter %objcinstance0 with '%1' to return an 'unowned' "
1128  "object">;
1129def warn_auto_synthesizing_protocol_property :Warning<
1130  "auto property synthesis will not synthesize property %0"
1131  " declared in protocol %1">,
1132  InGroup<DiagGroup<"objc-protocol-property-synthesis">>;
1133def note_add_synthesize_directive : Note<
1134  "add a '@synthesize' directive">;
1135def warn_no_autosynthesis_shared_ivar_property : Warning <
1136  "auto property synthesis will not synthesize property "
1137  "%0 because it cannot share an ivar with another synthesized property">,
1138  InGroup<ObjCNoPropertyAutoSynthesis>;
1139def warn_no_autosynthesis_property : Warning<
1140  "auto property synthesis will not synthesize property "
1141  "%0 because it is 'readwrite' but it will be synthesized 'readonly' "
1142  "via another property">,
1143  InGroup<ObjCNoPropertyAutoSynthesis>;
1144def warn_autosynthesis_property_in_superclass : Warning<
1145  "auto property synthesis will not synthesize property "
1146  "%0; it will be implemented by its superclass, use @dynamic to "
1147  "acknowledge intention">,
1148  InGroup<ObjCNoPropertyAutoSynthesis>;
1149def warn_autosynthesis_property_ivar_match :Warning<
1150  "autosynthesized property %0 will use %select{|synthesized}1 instance variable "
1151  "%2, not existing instance variable %3">,
1152  InGroup<DiagGroup<"objc-autosynthesis-property-ivar-name-match">>;
1153def warn_missing_explicit_synthesis : Warning <
1154  "auto property synthesis is synthesizing property not explicitly synthesized">,
1155  InGroup<DiagGroup<"objc-missing-property-synthesis">>, DefaultIgnore;
1156def warn_property_getter_owning_mismatch : Warning<
1157  "property declared as returning non-retained objects"
1158  "; getter returning retained objects">;
1159def warn_property_redecl_getter_mismatch : Warning<
1160  "getter name mismatch between property redeclaration (%1) and its original "
1161  "declaration (%0)">, InGroup<PropertyAttr>;
1162def err_property_setter_ambiguous_use : Error<
1163  "synthesized properties %0 and %1 both claim setter %2 -"
1164  " use of this setter will cause unexpected behavior">;
1165def warn_default_atomic_custom_getter_setter : Warning<
1166  "atomic by default property %0 has a user defined %select{getter|setter}1 "
1167  "(property should be marked 'atomic' if this is intended)">,
1168  InGroup<CustomAtomic>, DefaultIgnore;
1169def err_use_continuation_class : Error<
1170  "illegal redeclaration of property in class extension %0"
1171  " (attribute must be 'readwrite', while its primary must be 'readonly')">;
1172def err_type_mismatch_continuation_class : Error<
1173  "type of property %0 in class extension does not match "
1174  "property type in primary class">;
1175def err_use_continuation_class_redeclaration_readwrite : Error<
1176  "illegal redeclaration of 'readwrite' property in class extension %0"
1177  " (perhaps you intended this to be a 'readwrite' redeclaration of a "
1178  "'readonly' public property?)">;
1179def err_continuation_class : Error<"class extension has no primary class">;
1180def err_property_type : Error<"property cannot have array or function type %0">;
1181def err_missing_property_context : Error<
1182  "missing context for property implementation declaration">;
1183def err_bad_property_decl : Error<
1184  "property implementation must have its declaration in interface %0 or one of "
1185  "its extensions">;
1186def err_category_property : Error<
1187  "property declared in category %0 cannot be implemented in "
1188  "class implementation">;
1189def note_property_declare : Note<
1190  "property declared here">;
1191def note_protocol_property_declare : Note<
1192  "it could also be property "
1193  "%select{of type %1|without attribute '%1'|with attribute '%1'|with getter "
1194  "%1|with setter %1}0 declared here">;
1195def note_property_synthesize : Note<
1196  "property synthesized here">;
1197def err_synthesize_category_decl : Error<
1198  "@synthesize not allowed in a category's implementation">;
1199def err_synthesize_on_class_property : Error<
1200  "@synthesize not allowed on a class property %0">;
1201def err_missing_property_interface : Error<
1202  "property implementation in a category with no category declaration">;
1203def err_bad_category_property_decl : Error<
1204  "property implementation must have its declaration in the category %0">;
1205def err_bad_property_context : Error<
1206  "property implementation must be in a class or category implementation">;
1207def err_missing_property_ivar_decl : Error<
1208  "synthesized property %0 must either be named the same as a compatible"
1209  " instance variable or must explicitly name an instance variable">;
1210def err_arc_perform_selector_retains : Error<
1211  "performSelector names a selector which retains the object">;
1212def warn_arc_perform_selector_leaks : Warning<
1213  "performSelector may cause a leak because its selector is unknown">,
1214  InGroup<DiagGroup<"arc-performSelector-leaks">>;
1215def warn_dealloc_in_category : Warning<
1216"-dealloc is being overridden in a category">,
1217InGroup<DeallocInCategory>;
1218def err_gc_weak_property_strong_type : Error<
1219  "weak attribute declared on a __strong type property in GC mode">;
1220def warn_arc_repeated_use_of_weak : Warning <
1221  "weak %select{variable|property|implicit property|instance variable}0 %1 is "
1222  "accessed multiple times in this %select{function|method|block|lambda}2 "
1223  "but may be unpredictably set to nil; assign to a strong variable to keep "
1224  "the object alive">,
1225  InGroup<ARCRepeatedUseOfWeak>, DefaultIgnore;
1226def warn_implicitly_retains_self : Warning <
1227  "block implicitly retains 'self'; explicitly mention 'self' to indicate "
1228  "this is intended behavior">,
1229  InGroup<DiagGroup<"implicit-retain-self">>, DefaultIgnore;
1230def warn_arc_possible_repeated_use_of_weak : Warning <
1231  "weak %select{variable|property|implicit property|instance variable}0 %1 may "
1232  "be accessed multiple times in this %select{function|method|block|lambda}2 "
1233  "and may be unpredictably set to nil; assign to a strong variable to keep "
1234  "the object alive">,
1235  InGroup<ARCRepeatedUseOfWeakMaybe>, DefaultIgnore;
1236def note_arc_weak_also_accessed_here : Note<
1237  "also accessed here">;
1238def err_incomplete_synthesized_property : Error<
1239  "cannot synthesize property %0 with incomplete type %1">;
1240
1241def err_property_ivar_type : Error<
1242  "type of property %0 (%1) does not match type of instance variable %2 (%3)">;
1243def err_property_accessor_type : Error<
1244  "type of property %0 (%1) does not match type of accessor %2 (%3)">;
1245def err_ivar_in_superclass_use : Error<
1246  "property %0 attempting to use instance variable %1 declared in super class %2">;
1247def err_weak_property : Error<
1248  "existing instance variable %1 for __weak property %0 must be __weak">;
1249def err_strong_property : Error<
1250  "existing instance variable %1 for strong property %0 may not be __weak">;
1251def err_dynamic_property_ivar_decl : Error<
1252  "dynamic property cannot have instance variable specification">;
1253def err_duplicate_ivar_use : Error<
1254  "synthesized properties %0 and %1 both claim instance variable %2">;
1255def err_property_implemented : Error<"property %0 is already implemented">;
1256def warn_objc_missing_super_call : Warning<
1257  "method possibly missing a [super %0] call">,
1258  InGroup<ObjCMissingSuperCalls>;
1259def err_dealloc_bad_result_type : Error<
1260  "dealloc return type must be correctly specified as 'void' under ARC, "
1261  "instead of %0">;
1262def warn_undeclared_selector : Warning<
1263  "undeclared selector %0">, InGroup<UndeclaredSelector>, DefaultIgnore;
1264def warn_undeclared_selector_with_typo : Warning<
1265  "undeclared selector %0; did you mean %1?">,
1266  InGroup<UndeclaredSelector>, DefaultIgnore;
1267def warn_implicit_atomic_property : Warning<
1268  "property is assumed atomic by default">, InGroup<ImplicitAtomic>, DefaultIgnore;
1269def note_auto_readonly_iboutlet_fixup_suggest : Note<
1270  "property should be changed to be readwrite">;
1271def warn_auto_readonly_iboutlet_property : Warning<
1272  "readonly IBOutlet property %0 when auto-synthesized may "
1273  "not work correctly with 'nib' loader">,
1274  InGroup<DiagGroup<"readonly-iboutlet-property">>;
1275def warn_auto_implicit_atomic_property : Warning<
1276  "property is assumed atomic when auto-synthesizing the property">,
1277  InGroup<ImplicitAtomic>, DefaultIgnore;
1278def warn_unimplemented_selector:  Warning<
1279  "no method with selector %0 is implemented in this translation unit">,
1280  InGroup<Selector>, DefaultIgnore;
1281def warn_unimplemented_protocol_method : Warning<
1282  "method %0 in protocol %1 not implemented">, InGroup<Protocol>;
1283def warn_multiple_selectors: Warning<
1284  "several methods with selector %0 of mismatched types are found "
1285  "for the @selector expression">,
1286  InGroup<SelectorTypeMismatch>, DefaultIgnore;
1287
1288def err_objc_kindof_nonobject : Error<
1289  "'__kindof' specifier cannot be applied to non-object type %0">;
1290def err_objc_kindof_wrong_position : Error<
1291  "'__kindof' type specifier must precede the declarator">;
1292
1293def err_objc_method_unsupported_param_ret_type : Error<
1294  "%0 %select{parameter|return}1 type is unsupported; "
1295  "support for vector types for this target is introduced in %2">;
1296
1297def warn_messaging_unqualified_id : Warning<
1298  "messaging unqualified id">, DefaultIgnore,
1299  InGroup<DiagGroup<"objc-messaging-id">>;
1300
1301// C++ declarations
1302def err_static_assert_expression_is_not_constant : Error<
1303  "static_assert expression is not an integral constant expression">;
1304def err_static_assert_failed : Error<"static_assert failed%select{ %1|}0">;
1305def err_static_assert_requirement_failed : Error<
1306  "static_assert failed due to requirement '%0'%select{ %2|}1">;
1307
1308def ext_inline_variable : ExtWarn<
1309  "inline variables are a C++17 extension">, InGroup<CXX17>;
1310def warn_cxx14_compat_inline_variable : Warning<
1311  "inline variables are incompatible with C++ standards before C++17">,
1312  DefaultIgnore, InGroup<CXXPre17Compat>;
1313
1314def warn_inline_namespace_reopened_noninline : Warning<
1315  "inline namespace reopened as a non-inline namespace">;
1316def err_inline_namespace_mismatch : Error<
1317  "non-inline namespace cannot be reopened as inline">;
1318
1319def err_unexpected_friend : Error<
1320  "friends can only be classes or functions">;
1321def ext_enum_friend : ExtWarn<
1322  "befriending enumeration type %0 is a C++11 extension">, InGroup<CXX11>;
1323def warn_cxx98_compat_enum_friend : Warning<
1324  "befriending enumeration type %0 is incompatible with C++98">,
1325  InGroup<CXX98Compat>, DefaultIgnore;
1326def ext_nonclass_type_friend : ExtWarn<
1327  "non-class friend type %0 is a C++11 extension">, InGroup<CXX11>;
1328def warn_cxx98_compat_nonclass_type_friend : Warning<
1329  "non-class friend type %0 is incompatible with C++98">,
1330  InGroup<CXX98Compat>, DefaultIgnore;
1331def err_friend_is_member : Error<
1332  "friends cannot be members of the declaring class">;
1333def warn_cxx98_compat_friend_is_member : Warning<
1334  "friend declaration naming a member of the declaring class is incompatible "
1335  "with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
1336def ext_unelaborated_friend_type : ExtWarn<
1337  "unelaborated friend declaration is a C++11 extension; specify "
1338  "'%select{struct|interface|union|class|enum}0' to befriend %1">,
1339  InGroup<CXX11>;
1340def warn_cxx98_compat_unelaborated_friend_type : Warning<
1341  "befriending %1 without '%select{struct|interface|union|class|enum}0' "
1342  "keyword is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
1343def err_qualified_friend_no_match : Error<
1344  "friend declaration of %0 does not match any declaration in %1">;
1345def err_introducing_special_friend : Error<
1346  "%plural{[0,2]:must use a qualified name when declaring|3:cannot declare}0"
1347  " a %select{constructor|destructor|conversion operator|deduction guide}0 "
1348  "as a friend">;
1349def err_tagless_friend_type_template : Error<
1350  "friend type templates must use an elaborated type">;
1351def err_no_matching_local_friend : Error<
1352  "no matching function found in local scope">;
1353def err_no_matching_local_friend_suggest : Error<
1354  "no matching function %0 found in local scope; did you mean %3?">;
1355def err_partial_specialization_friend : Error<
1356  "partial specialization cannot be declared as a friend">;
1357def err_qualified_friend_def : Error<
1358  "friend function definition cannot be qualified with '%0'">;
1359def err_friend_def_in_local_class : Error<
1360  "friend function cannot be defined in a local class">;
1361def err_friend_not_first_in_declaration : Error<
1362  "'friend' must appear first in a non-function declaration">;
1363def err_using_decl_friend : Error<
1364  "cannot befriend target of using declaration">;
1365def warn_template_qualified_friend_unsupported : Warning<
1366  "dependent nested name specifier '%0' for friend class declaration is "
1367  "not supported; turning off access control for %1">,
1368  InGroup<UnsupportedFriend>;
1369def warn_template_qualified_friend_ignored : Warning<
1370  "dependent nested name specifier '%0' for friend template declaration is "
1371  "not supported; ignoring this friend declaration">,
1372  InGroup<UnsupportedFriend>;
1373def ext_friend_tag_redecl_outside_namespace : ExtWarn<
1374  "unqualified friend declaration referring to type outside of the nearest "
1375  "enclosing namespace is a Microsoft extension; add a nested name specifier">,
1376  InGroup<MicrosoftUnqualifiedFriend>;
1377def err_pure_friend : Error<"friend declaration cannot have a pure-specifier">;
1378
1379def err_invalid_base_in_interface : Error<
1380  "interface type cannot inherit from "
1381  "%select{struct|non-public interface|class}0 %1">;
1382
1383def err_abstract_type_in_decl : Error<
1384  "%select{return|parameter|variable|field|instance variable|"
1385  "synthesized instance variable}0 type %1 is an abstract class">;
1386def err_allocation_of_abstract_type : Error<
1387  "allocating an object of abstract class type %0">;
1388def err_throw_abstract_type : Error<
1389  "cannot throw an object of abstract type %0">;
1390def err_array_of_abstract_type : Error<"array of abstract class type %0">;
1391def err_capture_of_abstract_type : Error<
1392  "by-copy capture of value of abstract type %0">;
1393def err_capture_of_incomplete_type : Error<
1394  "by-copy capture of variable %0 with incomplete type %1">;
1395def err_capture_default_non_local : Error<
1396  "non-local lambda expression cannot have a capture-default">;
1397
1398def err_multiple_final_overriders : Error<
1399  "virtual function %q0 has more than one final overrider in %1">;
1400def note_final_overrider : Note<"final overrider of %q0 in %1">;
1401
1402def err_type_defined_in_type_specifier : Error<
1403  "%0 cannot be defined in a type specifier">;
1404def err_type_defined_in_result_type : Error<
1405  "%0 cannot be defined in the result type of a function">;
1406def err_type_defined_in_param_type : Error<
1407  "%0 cannot be defined in a parameter type">;
1408def err_type_defined_in_alias_template : Error<
1409  "%0 cannot be defined in a type alias template">;
1410def err_type_defined_in_condition : Error<
1411  "%0 cannot be defined in a condition">;
1412def err_type_defined_in_enum : Error<
1413  "%0 cannot be defined in an enumeration">;
1414
1415def note_pure_virtual_function : Note<
1416  "unimplemented pure virtual method %0 in %1">;
1417
1418def note_pure_qualified_call_kext : Note<
1419  "qualified call to %0::%1 is treated as a virtual call to %1 due to -fapple-kext">;
1420
1421def err_deleted_decl_not_first : Error<
1422  "deleted definition must be first declaration">;
1423
1424def err_deleted_override : Error<
1425  "deleted function %0 cannot override a non-deleted function">;
1426
1427def err_non_deleted_override : Error<
1428  "non-deleted function %0 cannot override a deleted function">;
1429
1430def warn_weak_vtable : Warning<
1431  "%0 has no out-of-line virtual method definitions; its vtable will be "
1432  "emitted in every translation unit">,
1433  InGroup<DiagGroup<"weak-vtables">>, DefaultIgnore;
1434def warn_weak_template_vtable : Warning<
1435  "explicit template instantiation %0 will emit a vtable in every "
1436  "translation unit">,
1437  InGroup<DiagGroup<"weak-template-vtables">>, DefaultIgnore;
1438
1439def ext_using_undefined_std : ExtWarn<
1440  "using directive refers to implicitly-defined namespace 'std'">;
1441
1442// C++ exception specifications
1443def err_exception_spec_in_typedef : Error<
1444  "exception specifications are not allowed in %select{typedefs|type aliases}0">;
1445def err_distant_exception_spec : Error<
1446  "exception specifications are not allowed beyond a single level "
1447  "of indirection">;
1448def err_incomplete_in_exception_spec : Error<
1449  "%select{|pointer to |reference to }0incomplete type %1 is not allowed "
1450  "in exception specification">;
1451def ext_incomplete_in_exception_spec : ExtWarn<err_incomplete_in_exception_spec.Text>,
1452  InGroup<MicrosoftExceptionSpec>;
1453def err_rref_in_exception_spec : Error<
1454  "rvalue reference type %0 is not allowed in exception specification">;
1455def err_mismatched_exception_spec : Error<
1456  "exception specification in declaration does not match previous declaration">;
1457def ext_mismatched_exception_spec : ExtWarn<err_mismatched_exception_spec.Text>,
1458  InGroup<MicrosoftExceptionSpec>;
1459def err_override_exception_spec : Error<
1460  "exception specification of overriding function is more lax than "
1461  "base version">;
1462def ext_override_exception_spec : ExtWarn<err_override_exception_spec.Text>,
1463  InGroup<MicrosoftExceptionSpec>;
1464def err_incompatible_exception_specs : Error<
1465  "target exception specification is not superset of source">;
1466def warn_incompatible_exception_specs : Warning<
1467  err_incompatible_exception_specs.Text>, InGroup<IncompatibleExceptionSpec>;
1468def err_deep_exception_specs_differ : Error<
1469  "exception specifications of %select{return|argument}0 types differ">;
1470def warn_deep_exception_specs_differ : Warning<
1471  err_deep_exception_specs_differ.Text>, InGroup<IncompatibleExceptionSpec>;
1472def err_missing_exception_specification : Error<
1473  "%0 is missing exception specification '%1'">;
1474def ext_missing_exception_specification : ExtWarn<
1475  err_missing_exception_specification.Text>,
1476  InGroup<DiagGroup<"missing-exception-spec">>;
1477def ext_ms_missing_exception_specification : ExtWarn<
1478  err_missing_exception_specification.Text>,
1479  InGroup<MicrosoftExceptionSpec>;
1480def err_noexcept_needs_constant_expression : Error<
1481  "argument to noexcept specifier must be a constant expression">;
1482def err_exception_spec_not_parsed : Error<
1483  "exception specification is not available until end of class definition">;
1484def err_exception_spec_cycle : Error<
1485  "exception specification of %0 uses itself">;
1486def err_exception_spec_incomplete_type : Error<
1487  "exception specification needed for member of incomplete class %0">;
1488
1489// C++ access checking
1490def err_class_redeclared_with_different_access : Error<
1491  "%0 redeclared with '%1' access">;
1492def err_access : Error<
1493  "%1 is a %select{private|protected}0 member of %3">, AccessControl;
1494def ext_ms_using_declaration_inaccessible : ExtWarn<
1495  "using declaration referring to inaccessible member '%0' (which refers "
1496  "to accessible member '%1') is a Microsoft compatibility extension">,
1497    AccessControl, InGroup<MicrosoftUsingDecl>;
1498def err_access_ctor : Error<
1499  "calling a %select{private|protected}0 constructor of class %2">,
1500  AccessControl;
1501def ext_rvalue_to_reference_access_ctor : Extension<
1502  "C++98 requires an accessible copy constructor for class %2 when binding "
1503  "a reference to a temporary; was %select{private|protected}0">,
1504  AccessControl, InGroup<BindToTemporaryCopy>;
1505def err_access_base_ctor : Error<
1506  // The ERRORs represent other special members that aren't constructors, in
1507  // hopes that someone will bother noticing and reporting if they appear
1508  "%select{base class|inherited virtual base class}0 %1 has %select{private|"
1509  "protected}3 %select{default |copy |move |*ERROR* |*ERROR* "
1510  "|*ERROR*|}2constructor">, AccessControl;
1511def err_access_field_ctor : Error<
1512  // The ERRORs represent other special members that aren't constructors, in
1513  // hopes that someone will bother noticing and reporting if they appear
1514  "field of type %0 has %select{private|protected}2 "
1515  "%select{default |copy |move |*ERROR* |*ERROR* |*ERROR* |}1constructor">,
1516  AccessControl;
1517def err_access_friend_function : Error<
1518  "friend function %1 is a %select{private|protected}0 member of %3">,
1519  AccessControl;
1520
1521def err_access_dtor : Error<
1522  "calling a %select{private|protected}1 destructor of class %0">,
1523  AccessControl;
1524def err_access_dtor_base :
1525    Error<"base class %0 has %select{private|protected}1 destructor">,
1526    AccessControl;
1527def err_access_dtor_vbase :
1528    Error<"inherited virtual base class %1 has "
1529    "%select{private|protected}2 destructor">,
1530    AccessControl;
1531def err_access_dtor_temp :
1532    Error<"temporary of type %0 has %select{private|protected}1 destructor">,
1533    AccessControl;
1534def err_access_dtor_exception :
1535    Error<"exception object of type %0 has %select{private|protected}1 "
1536          "destructor">, AccessControl;
1537def err_access_dtor_field :
1538    Error<"field of type %1 has %select{private|protected}2 destructor">,
1539    AccessControl;
1540def err_access_dtor_var :
1541    Error<"variable of type %1 has %select{private|protected}2 destructor">,
1542    AccessControl;
1543def err_access_dtor_ivar :
1544    Error<"instance variable of type %0 has %select{private|protected}1 "
1545          "destructor">,
1546    AccessControl;
1547def note_previous_access_declaration : Note<
1548  "previously declared '%1' here">;
1549def note_access_natural : Note<
1550  "%select{|implicitly }1declared %select{private|protected}0 here">;
1551def note_access_constrained_by_path : Note<
1552  "constrained by %select{|implicitly }1%select{private|protected}0"
1553  " inheritance here">;
1554def note_access_protected_restricted_noobject : Note<
1555  "must name member using the type of the current context %0">;
1556def note_access_protected_restricted_ctordtor : Note<
1557  "protected %select{constructor|destructor}0 can only be used to "
1558  "%select{construct|destroy}0 a base class subobject">;
1559def note_access_protected_restricted_object : Note<
1560  "can only access this member on an object of type %0">;
1561def warn_cxx98_compat_sfinae_access_control : Warning<
1562  "substitution failure due to access control is incompatible with C++98">,
1563  InGroup<CXX98Compat>, DefaultIgnore, NoSFINAE;
1564
1565// C++ name lookup
1566def err_incomplete_nested_name_spec : Error<
1567  "incomplete type %0 named in nested name specifier">;
1568def err_dependent_nested_name_spec : Error<
1569  "nested name specifier for a declaration cannot depend on a template "
1570  "parameter">;
1571def err_nested_name_member_ref_lookup_ambiguous : Error<
1572  "lookup of %0 in member access expression is ambiguous">;
1573def ext_nested_name_member_ref_lookup_ambiguous : ExtWarn<
1574  "lookup of %0 in member access expression is ambiguous; using member of %1">,
1575  InGroup<AmbigMemberTemplate>;
1576def note_ambig_member_ref_object_type : Note<
1577  "lookup in the object type %0 refers here">;
1578def note_ambig_member_ref_scope : Note<
1579  "lookup from the current scope refers here">;
1580def err_qualified_member_nonclass : Error<
1581  "qualified member access refers to a member in %0">;
1582def err_incomplete_member_access : Error<
1583  "member access into incomplete type %0">;
1584def err_incomplete_type : Error<
1585  "incomplete type %0 where a complete type is required">;
1586def warn_cxx98_compat_enum_nested_name_spec : Warning<
1587  "enumeration type in nested name specifier is incompatible with C++98">,
1588  InGroup<CXX98Compat>, DefaultIgnore;
1589def err_nested_name_spec_is_not_class : Error<
1590  "%0 cannot appear before '::' because it is not a class"
1591  "%select{ or namespace|, namespace, or enumeration}1; did you mean ':'?">;
1592def ext_nested_name_spec_is_enum : ExtWarn<
1593  "use of enumeration in a nested name specifier is a C++11 extension">,
1594  InGroup<CXX11>;
1595def err_out_of_line_qualified_id_type_names_constructor : Error<
1596  "qualified reference to %0 is a constructor name rather than a "
1597  "%select{template name|type}1 in this context">;
1598def ext_out_of_line_qualified_id_type_names_constructor : ExtWarn<
1599  "ISO C++ specifies that "
1600  "qualified reference to %0 is a constructor name rather than a "
1601  "%select{template name|type}1 in this context, despite preceding "
1602  "%select{'typename'|'template'}2 keyword">, SFINAEFailure,
1603  InGroup<DiagGroup<"injected-class-name">>;
1604
1605// C++ class members
1606def err_storageclass_invalid_for_member : Error<
1607  "storage class specified for a member declaration">;
1608def err_mutable_function : Error<"'mutable' cannot be applied to functions">;
1609def err_mutable_reference : Error<"'mutable' cannot be applied to references">;
1610def ext_mutable_reference : ExtWarn<
1611  "'mutable' on a reference type is a Microsoft extension">,
1612  InGroup<MicrosoftMutableReference>;
1613def err_mutable_const : Error<"'mutable' and 'const' cannot be mixed">;
1614def err_mutable_nonmember : Error<
1615  "'mutable' can only be applied to member variables">;
1616def err_virtual_in_union : Error<
1617  "unions cannot have virtual functions">;
1618def err_virtual_non_function : Error<
1619  "'virtual' can only appear on non-static member functions">;
1620def err_virtual_out_of_class : Error<
1621  "'virtual' can only be specified inside the class definition">;
1622def err_virtual_member_function_template : Error<
1623  "'virtual' cannot be specified on member function templates">;
1624def err_static_overrides_virtual : Error<
1625  "'static' member function %0 overrides a virtual function in a base class">;
1626def err_explicit_non_function : Error<
1627  "'explicit' can only appear on non-static member functions">;
1628def err_explicit_out_of_class : Error<
1629  "'explicit' can only be specified inside the class definition">;
1630def err_explicit_non_ctor_or_conv_function : Error<
1631  "'explicit' can only be applied to a constructor or conversion function">;
1632def err_static_not_bitfield : Error<"static member %0 cannot be a bit-field">;
1633def err_static_out_of_line : Error<
1634  "'static' can only be specified inside the class definition">;
1635def ext_static_out_of_line : ExtWarn<
1636  err_static_out_of_line.Text>,
1637  InGroup<MicrosoftTemplate>;
1638def err_storage_class_for_static_member : Error<
1639  "static data member definition cannot specify a storage class">;
1640def err_typedef_not_bitfield : Error<"typedef member %0 cannot be a bit-field">;
1641def err_not_integral_type_bitfield : Error<
1642  "bit-field %0 has non-integral type %1">;
1643def err_not_integral_type_anon_bitfield : Error<
1644  "anonymous bit-field has non-integral type %0">;
1645def err_anon_bitfield_qualifiers : Error<
1646  "anonymous bit-field cannot have qualifiers">;
1647def err_member_function_initialization : Error<
1648  "initializer on function does not look like a pure-specifier">;
1649def err_non_virtual_pure : Error<
1650  "%0 is not virtual and cannot be declared pure">;
1651def ext_pure_function_definition : ExtWarn<
1652  "function definition with pure-specifier is a Microsoft extension">,
1653  InGroup<MicrosoftPureDefinition>;
1654def err_qualified_member_of_unrelated : Error<
1655  "%q0 is not a member of class %1">;
1656
1657def err_member_function_call_bad_cvr : Error<
1658  "'this' argument to member function %0 has type %1, but function is not marked "
1659  "%select{const|restrict|const or restrict|volatile|const or volatile|"
1660  "volatile or restrict|const, volatile, or restrict}2">;
1661def err_member_function_call_bad_ref : Error<
1662  "'this' argument to member function %0 is an %select{lvalue|rvalue}1, "
1663  "but function has %select{non-const lvalue|rvalue}2 ref-qualifier">;
1664def err_member_function_call_bad_type : Error<
1665  "cannot initialize object parameter of type %0 with an expression "
1666  "of type %1">;
1667
1668def warn_call_to_pure_virtual_member_function_from_ctor_dtor : Warning<
1669  "call to pure virtual member function %0 has undefined behavior; "
1670  "overrides of %0 in subclasses are not available in the "
1671  "%select{constructor|destructor}1 of %2">, InGroup<PureVirtualCallFromCtorDtor>;
1672
1673def select_special_member_kind : TextSubstitution<
1674  "%select{default constructor|copy constructor|move constructor|"
1675  "copy assignment operator|move assignment operator|destructor}0">;
1676
1677def note_member_declared_at : Note<"member is declared here">;
1678def note_ivar_decl : Note<"instance variable is declared here">;
1679def note_bitfield_decl : Note<"bit-field is declared here">;
1680def note_implicit_param_decl : Note<"%0 is an implicit parameter">;
1681def note_member_synthesized_at : Note<
1682  "in implicit %sub{select_special_member_kind}0 for %1 "
1683  "first required here">;
1684def err_missing_default_ctor : Error<
1685  "%select{constructor for %1 must explicitly initialize the|"
1686  "implicit default constructor for %1 must explicitly initialize the|"
1687  "cannot use constructor inherited from base class %4;}0 "
1688  "%select{base class|member}2 %3 %select{which|which|of %1}0 "
1689  "does not have a default constructor">;
1690def note_due_to_dllexported_class : Note<
1691  "due to %0 being dllexported%select{|; try compiling in C++11 mode}1">;
1692
1693def err_illegal_union_or_anon_struct_member : Error<
1694  "%select{anonymous struct|union}0 member %1 has a non-trivial "
1695  "%sub{select_special_member_kind}2">;
1696def warn_cxx98_compat_nontrivial_union_or_anon_struct_member : Warning<
1697  "%select{anonymous struct|union}0 member %1 with a non-trivial "
1698  "%sub{select_special_member_kind}2 is incompatible with C++98">,
1699  InGroup<CXX98Compat>, DefaultIgnore;
1700
1701def note_nontrivial_virtual_dtor : Note<
1702  "destructor for %0 is not trivial because it is virtual">;
1703def note_nontrivial_has_virtual : Note<
1704  "because type %0 has a virtual %select{member function|base class}1">;
1705def note_nontrivial_no_def_ctor : Note<
1706  "because %select{base class of |field of |}0type %1 has no "
1707  "default constructor">;
1708def note_user_declared_ctor : Note<
1709  "implicit default constructor suppressed by user-declared constructor">;
1710def note_nontrivial_no_copy : Note<
1711  "because no %select{<<ERROR>>|constructor|constructor|assignment operator|"
1712  "assignment operator|<<ERROR>>}2 can be used to "
1713  "%select{<<ERROR>>|copy|move|copy|move|<<ERROR>>}2 "
1714  "%select{base class|field|an object}0 of type %3">;
1715def note_nontrivial_user_provided : Note<
1716  "because %select{base class of |field of |}0type %1 has a user-provided "
1717  "%sub{select_special_member_kind}2">;
1718def note_nontrivial_in_class_init : Note<
1719  "because field %0 has an initializer">;
1720def note_nontrivial_param_type : Note<
1721  "because its parameter is %diff{of type $, not $|of the wrong type}2,3">;
1722def note_nontrivial_default_arg : Note<"because it has a default argument">;
1723def note_nontrivial_variadic : Note<"because it is a variadic function">;
1724def note_nontrivial_subobject : Note<
1725  "because the function selected to %select{construct|copy|move|copy|move|"
1726  "destroy}2 %select{base class|field}0 of type %1 is not trivial">;
1727def note_nontrivial_objc_ownership : Note<
1728  "because type %0 has a member with %select{no|no|__strong|__weak|"
1729  "__autoreleasing}1 ownership">;
1730
1731def err_static_data_member_not_allowed_in_anon_struct : Error<
1732  "static data member %0 not allowed in anonymous struct">;
1733def ext_static_data_member_in_union : ExtWarn<
1734  "static data member %0 in union is a C++11 extension">, InGroup<CXX11>;
1735def warn_cxx98_compat_static_data_member_in_union : Warning<
1736  "static data member %0 in union is incompatible with C++98">,
1737  InGroup<CXX98Compat>, DefaultIgnore;
1738def ext_union_member_of_reference_type : ExtWarn<
1739  "union member %0 has reference type %1, which is a Microsoft extension">,
1740  InGroup<MicrosoftUnionMemberReference>;
1741def err_union_member_of_reference_type : Error<
1742  "union member %0 has reference type %1">;
1743def ext_anonymous_struct_union_qualified : Extension<
1744  "anonymous %select{struct|union}0 cannot be '%1'">;
1745def err_different_return_type_for_overriding_virtual_function : Error<
1746  "virtual function %0 has a different return type "
1747  "%diff{($) than the function it overrides (which has return type $)|"
1748  "than the function it overrides}1,2">;
1749def note_overridden_virtual_function : Note<
1750  "overridden virtual function is here">;
1751def err_conflicting_overriding_cc_attributes : Error<
1752  "virtual function %0 has different calling convention attributes "
1753  "%diff{($) than the function it overrides (which has calling convention $)|"
1754  "than the function it overrides}1,2">;
1755def warn_overriding_method_missing_noescape : Warning<
1756  "parameter of overriding method should be annotated with "
1757  "__attribute__((noescape))">, InGroup<MissingNoEscape>;
1758def note_overridden_marked_noescape : Note<
1759  "parameter of overridden method is annotated with __attribute__((noescape))">;
1760def note_cat_conform_to_noescape_prot : Note<
1761  "%select{category|class extension}0 conforms to protocol %1 which defines method %2">;
1762
1763def err_covariant_return_inaccessible_base : Error<
1764  "invalid covariant return for virtual function: %1 is a "
1765  "%select{private|protected}2 base class of %0">, AccessControl;
1766def err_covariant_return_ambiguous_derived_to_base_conv : Error<
1767  "return type of virtual function %3 is not covariant with the return type of "
1768  "the function it overrides (ambiguous conversion from derived class "
1769  "%0 to base class %1:%2)">;
1770def err_covariant_return_not_derived : Error<
1771  "return type of virtual function %0 is not covariant with the return type of "
1772  "the function it overrides (%1 is not derived from %2)">;
1773def err_covariant_return_incomplete : Error<
1774  "return type of virtual function %0 is not covariant with the return type of "
1775  "the function it overrides (%1 is incomplete)">;
1776def err_covariant_return_type_different_qualifications : Error<
1777  "return type of virtual function %0 is not covariant with the return type of "
1778  "the function it overrides (%1 has different qualifiers than %2)">;
1779def err_covariant_return_type_class_type_more_qualified : Error<
1780  "return type of virtual function %0 is not covariant with the return type of "
1781  "the function it overrides (class type %1 is more qualified than class "
1782  "type %2">;
1783
1784// C++ implicit special member functions
1785def note_in_declaration_of_implicit_special_member : Note<
1786  "while declaring the implicit %sub{select_special_member_kind}1"
1787  " for %0">;
1788
1789// C++ constructors
1790def err_constructor_cannot_be : Error<"constructor cannot be declared '%0'">;
1791def err_invalid_qualified_constructor : Error<
1792  "'%0' qualifier is not allowed on a constructor">;
1793def err_ref_qualifier_constructor : Error<
1794  "ref-qualifier '%select{&&|&}0' is not allowed on a constructor">;
1795
1796def err_constructor_return_type : Error<
1797  "constructor cannot have a return type">;
1798def err_constructor_redeclared : Error<"constructor cannot be redeclared">;
1799def err_constructor_byvalue_arg : Error<
1800  "copy constructor must pass its first argument by reference">;
1801def warn_no_constructor_for_refconst : Warning<
1802  "%select{struct|interface|union|class|enum}0 %1 does not declare any "
1803  "constructor to initialize its non-modifiable members">;
1804def note_refconst_member_not_initialized : Note<
1805  "%select{const|reference}0 member %1 will never be initialized">;
1806def ext_ms_explicit_constructor_call : ExtWarn<
1807  "explicit constructor calls are a Microsoft extension">,
1808  InGroup<MicrosoftExplicitConstructorCall>;
1809
1810// C++ destructors
1811def err_destructor_not_member : Error<
1812  "destructor must be a non-static member function">;
1813def err_destructor_cannot_be : Error<"destructor cannot be declared '%0'">;
1814def err_invalid_qualified_destructor : Error<
1815  "'%0' qualifier is not allowed on a destructor">;
1816def err_ref_qualifier_destructor : Error<
1817  "ref-qualifier '%select{&&|&}0' is not allowed on a destructor">;
1818def err_destructor_return_type : Error<"destructor cannot have a return type">;
1819def err_destructor_redeclared : Error<"destructor cannot be redeclared">;
1820def err_destructor_with_params : Error<"destructor cannot have any parameters">;
1821def err_destructor_variadic : Error<"destructor cannot be variadic">;
1822def err_destructor_typedef_name : Error<
1823  "destructor cannot be declared using a %select{typedef|type alias}1 %0 of the class name">;
1824def err_destructor_name : Error<
1825  "expected the class name after '~' to name the enclosing class">;
1826def err_destructor_class_name : Error<
1827  "expected the class name after '~' to name a destructor">;
1828def err_ident_in_dtor_not_a_type : Error<
1829  "identifier %0 in object destruction expression does not name a type">;
1830def err_destructor_expr_type_mismatch : Error<
1831  "destructor type %0 in object destruction expression does not match the "
1832  "type %1 of the object being destroyed">;
1833def note_destructor_type_here : Note<
1834  "type %0 is declared here">;
1835
1836def err_destroy_attr_on_non_static_var : Error<
1837  "%select{no_destroy|always_destroy}0 attribute can only be applied to a"
1838  " variable with static or thread storage duration">;
1839
1840def err_destructor_template : Error<
1841  "destructor cannot be declared as a template">;
1842
1843// C++ initialization
1844def err_init_conversion_failed : Error<
1845  "cannot initialize %select{a variable|a parameter|return object|"
1846  "statement expression result|an "
1847  "exception object|a member subobject|an array element|a new value|a value|a "
1848  "base class|a constructor delegation|a vector element|a block element|a "
1849  "block element|a complex element|a lambda capture|a compound literal "
1850  "initializer|a related result|a parameter of CF audited function}0 "
1851  "%diff{of type $ with an %select{rvalue|lvalue}2 of type $|"
1852  "with an %select{rvalue|lvalue}2 of incompatible type}1,3"
1853  "%select{|: different classes%diff{ ($ vs $)|}5,6"
1854  "|: different number of parameters (%5 vs %6)"
1855  "|: type mismatch at %ordinal5 parameter%diff{ ($ vs $)|}6,7"
1856  "|: different return type%diff{ ($ vs $)|}5,6"
1857  "|: different qualifiers (%5 vs %6)"
1858  "|: different exception specifications}4">;
1859
1860def err_lvalue_to_rvalue_ref : Error<"rvalue reference %diff{to type $ cannot "
1861  "bind to lvalue of type $|cannot bind to incompatible lvalue}0,1">;
1862def err_lvalue_reference_bind_to_initlist : Error<
1863  "%select{non-const|volatile}0 lvalue reference to type %1 cannot bind to an "
1864  "initializer list temporary">;
1865def err_lvalue_reference_bind_to_temporary : Error<
1866  "%select{non-const|volatile}0 lvalue reference %diff{to type $ cannot bind "
1867  "to a temporary of type $|cannot bind to incompatible temporary}1,2">;
1868def err_lvalue_reference_bind_to_unrelated : Error<
1869  "%select{non-const|volatile}0 lvalue reference "
1870  "%diff{to type $ cannot bind to a value of unrelated type $|"
1871  "cannot bind to a value of unrelated type}1,2">;
1872def err_reference_bind_drops_quals : Error<
1873  "binding reference %diff{of type $ to value of type $|to value}0,1 "
1874  "%select{drops %3 qualifier%plural{1:|2:|4:|:s}4|changes address space}2">;
1875def err_reference_bind_failed : Error<
1876  "reference %diff{to %select{type|incomplete type}1 $ could not bind to an "
1877  "%select{rvalue|lvalue}2 of type $|could not bind to %select{rvalue|lvalue}2 of "
1878  "incompatible type}0,3">;
1879def err_reference_bind_temporary_addrspace : Error<
1880  "reference of type %0 cannot bind to a temporary object because of "
1881  "address space mismatch">;
1882def err_reference_bind_init_list : Error<
1883  "reference to type %0 cannot bind to an initializer list">;
1884def err_init_list_bad_dest_type : Error<
1885  "%select{|non-aggregate }0type %1 cannot be initialized with an initializer "
1886  "list">;
1887def warn_cxx2a_compat_aggregate_init_with_ctors : Warning<
1888  "aggregate initialization of type %0 with user-declared constructors "
1889  "is incompatible with C++2a">, DefaultIgnore, InGroup<CXX2aCompat>;
1890
1891def err_reference_bind_to_bitfield : Error<
1892  "%select{non-const|volatile}0 reference cannot bind to "
1893  "bit-field%select{| %1}2">;
1894def err_reference_bind_to_vector_element : Error<
1895  "%select{non-const|volatile}0 reference cannot bind to vector element">;
1896def err_reference_var_requires_init : Error<
1897  "declaration of reference variable %0 requires an initializer">;
1898def err_reference_without_init : Error<
1899  "reference to type %0 requires an initializer">;
1900def note_value_initialization_here : Note<
1901  "in value-initialization of type %0 here">;
1902def err_reference_has_multiple_inits : Error<
1903  "reference cannot be initialized with multiple values">;
1904def err_init_non_aggr_init_list : Error<
1905  "initialization of non-aggregate type %0 with an initializer list">;
1906def err_init_reference_member_uninitialized : Error<
1907  "reference member of type %0 uninitialized">;
1908def note_uninit_reference_member : Note<
1909  "uninitialized reference member is here">;
1910def warn_field_is_uninit : Warning<"field %0 is uninitialized when used here">,
1911  InGroup<Uninitialized>;
1912def warn_base_class_is_uninit : Warning<
1913  "base class %0 is uninitialized when used here to access %q1">,
1914  InGroup<Uninitialized>;
1915def warn_reference_field_is_uninit : Warning<
1916  "reference %0 is not yet bound to a value when used here">,
1917  InGroup<Uninitialized>;
1918def note_uninit_in_this_constructor : Note<
1919  "during field initialization in %select{this|the implicit default}0 "
1920  "constructor">;
1921def warn_static_self_reference_in_init : Warning<
1922  "static variable %0 is suspiciously used within its own initialization">,
1923  InGroup<UninitializedStaticSelfInit>;
1924def warn_uninit_self_reference_in_init : Warning<
1925  "variable %0 is uninitialized when used within its own initialization">,
1926  InGroup<Uninitialized>;
1927def warn_uninit_self_reference_in_reference_init : Warning<
1928  "reference %0 is not yet bound to a value when used within its own"
1929  " initialization">,
1930  InGroup<Uninitialized>;
1931def warn_uninit_var : Warning<
1932  "variable %0 is uninitialized when %select{used here|captured by block}1">,
1933  InGroup<Uninitialized>, DefaultIgnore;
1934def warn_sometimes_uninit_var : Warning<
1935  "variable %0 is %select{used|captured}1 uninitialized whenever "
1936  "%select{'%3' condition is %select{true|false}4|"
1937  "'%3' loop %select{is entered|exits because its condition is false}4|"
1938  "'%3' loop %select{condition is true|exits because its condition is false}4|"
1939  "switch %3 is taken|"
1940  "its declaration is reached|"
1941  "%3 is called}2">,
1942  InGroup<UninitializedSometimes>, DefaultIgnore;
1943def warn_maybe_uninit_var : Warning<
1944  "variable %0 may be uninitialized when "
1945  "%select{used here|captured by block}1">,
1946  InGroup<UninitializedMaybe>, DefaultIgnore;
1947def note_var_declared_here : Note<"variable %0 is declared here">;
1948def note_uninit_var_use : Note<
1949  "%select{uninitialized use occurs|variable is captured by block}0 here">;
1950def warn_uninit_byref_blockvar_captured_by_block : Warning<
1951  "block pointer variable %0 is %select{uninitialized|null}1 when captured by "
1952  "block">, InGroup<Uninitialized>, DefaultIgnore;
1953def note_block_var_fixit_add_initialization : Note<
1954  "did you mean to use __block %0?">;
1955def note_in_omitted_aggregate_initializer : Note<
1956  "in implicit initialization of %select{"
1957  "array element %1 with omitted initializer|"
1958  "field %1 with omitted initializer|"
1959  "trailing array elements in runtime-sized array new}0">;
1960def note_in_reference_temporary_list_initializer : Note<
1961  "in initialization of temporary of type %0 created to "
1962  "list-initialize this reference">;
1963def note_var_fixit_add_initialization : Note<
1964  "initialize the variable %0 to silence this warning">;
1965def note_uninit_fixit_remove_cond : Note<
1966  "remove the %select{'%1' if its condition|condition if it}0 "
1967  "is always %select{false|true}2">;
1968def err_init_incomplete_type : Error<"initialization of incomplete type %0">;
1969def err_list_init_in_parens : Error<
1970  "cannot initialize %select{non-class|reference}0 type %1 with a "
1971  "parenthesized initializer list">;
1972
1973def warn_unsequenced_mod_mod : Warning<
1974  "multiple unsequenced modifications to %0">, InGroup<Unsequenced>;
1975def warn_unsequenced_mod_use : Warning<
1976  "unsequenced modification and access to %0">, InGroup<Unsequenced>;
1977
1978def select_initialized_entity_kind : TextSubstitution<
1979  "%select{copying variable|copying parameter|"
1980  "returning object|initializing statement expression result|"
1981  "throwing object|copying member subobject|copying array element|"
1982  "allocating object|copying temporary|initializing base subobject|"
1983  "initializing vector element|capturing value}0">;
1984
1985def err_temp_copy_no_viable : Error<
1986  "no viable constructor %sub{select_initialized_entity_kind}0 of type %1">;
1987def ext_rvalue_to_reference_temp_copy_no_viable : Extension<
1988  "no viable constructor %sub{select_initialized_entity_kind}0 of type %1; "
1989  "C++98 requires a copy constructor when binding a reference to a temporary">,
1990  InGroup<BindToTemporaryCopy>;
1991def err_temp_copy_ambiguous : Error<
1992  "ambiguous constructor call when %sub{select_initialized_entity_kind}0 "
1993  "of type %1">;
1994def err_temp_copy_deleted : Error<
1995  "%sub{select_initialized_entity_kind}0 of type %1 "
1996  "invokes deleted constructor">;
1997def err_temp_copy_incomplete : Error<
1998  "copying a temporary object of incomplete type %0">;
1999def warn_cxx98_compat_temp_copy : Warning<
2000  "%sub{select_initialized_entity_kind}1 "
2001  "of type %2 when binding a reference to a temporary would %select{invoke "
2002  "an inaccessible constructor|find no viable constructor|find ambiguous "
2003  "constructors|invoke a deleted constructor}0 in C++98">,
2004  InGroup<CXX98CompatBindToTemporaryCopy>, DefaultIgnore;
2005def err_selected_explicit_constructor : Error<
2006  "chosen constructor is explicit in copy-initialization">;
2007def note_explicit_ctor_deduction_guide_here : Note<
2008  "explicit %select{constructor|deduction guide}0 declared here">;
2009
2010// C++11 decltype
2011def err_decltype_in_declarator : Error<
2012    "'decltype' cannot be used to name a declaration">;
2013
2014// C++11 auto
2015def warn_cxx98_compat_auto_type_specifier : Warning<
2016  "'auto' type specifier is incompatible with C++98">,
2017  InGroup<CXX98Compat>, DefaultIgnore;
2018def err_auto_variable_cannot_appear_in_own_initializer : Error<
2019  "variable %0 declared with deduced type %1 "
2020  "cannot appear in its own initializer">;
2021def err_binding_cannot_appear_in_own_initializer : Error<
2022  "binding %0 cannot appear in the initializer of its own "
2023  "decomposition declaration">;
2024def err_illegal_decl_array_of_auto : Error<
2025  "'%0' declared as array of %1">;
2026def err_new_array_of_auto : Error<
2027  "cannot allocate array of 'auto'">;
2028def err_auto_not_allowed : Error<
2029  "%select{'auto'|'decltype(auto)'|'__auto_type'|"
2030  "use of "
2031  "%select{class template|function template|variable template|alias template|"
2032  "template template parameter|concept|template}2 %3 requires template "
2033  "arguments; argument deduction}0 not allowed "
2034  "%select{in function prototype"
2035  "|in non-static struct member|in struct member"
2036  "|in non-static union member|in union member"
2037  "|in non-static class member|in interface member"
2038  "|in exception declaration|in template parameter until C++17|in block literal"
2039  "|in template argument|in typedef|in type alias|in function return type"
2040  "|in conversion function type|here|in lambda parameter"
2041  "|in type allocated by 'new'|in K&R-style function parameter"
2042  "|in template parameter|in friend declaration}1">;
2043def err_dependent_deduced_tst : Error<
2044  "typename specifier refers to "
2045  "%select{class template|function template|variable template|alias template|"
2046  "template template parameter|template}0 member in %1; "
2047  "argument deduction not allowed here">;
2048def err_auto_not_allowed_var_inst : Error<
2049  "'auto' variable template instantiation is not allowed">;
2050def err_auto_var_requires_init : Error<
2051  "declaration of variable %0 with deduced type %1 requires an initializer">;
2052def err_auto_new_requires_ctor_arg : Error<
2053  "new expression for type %0 requires a constructor argument">;
2054def ext_auto_new_list_init : Extension<
2055  "ISO C++ standards before C++17 do not allow new expression for "
2056  "type %0 to use list-initialization">, InGroup<CXX17>;
2057def err_auto_var_init_no_expression : Error<
2058  "initializer for variable %0 with type %1 is empty">;
2059def err_auto_var_init_multiple_expressions : Error<
2060  "initializer for variable %0 with type %1 contains multiple expressions">;
2061def err_auto_var_init_paren_braces : Error<
2062  "cannot deduce type for variable %1 with type %2 from "
2063  "%select{parenthesized|nested}0 initializer list">;
2064def err_auto_new_ctor_multiple_expressions : Error<
2065  "new expression for type %0 contains multiple constructor arguments">;
2066def err_auto_missing_trailing_return : Error<
2067  "'auto' return without trailing return type; deduced return types are a "
2068  "C++14 extension">;
2069def err_deduced_return_type : Error<
2070  "deduced return types are a C++14 extension">;
2071def err_trailing_return_without_auto : Error<
2072  "function with trailing return type must specify return type 'auto', not %0">;
2073def err_trailing_return_in_parens : Error<
2074  "trailing return type may not be nested within parentheses">;
2075def err_auto_var_deduction_failure : Error<
2076  "variable %0 with type %1 has incompatible initializer of type %2">;
2077def err_auto_var_deduction_failure_from_init_list : Error<
2078  "cannot deduce actual type for variable %0 with type %1 from initializer list">;
2079def err_auto_new_deduction_failure : Error<
2080  "new expression for type %0 has incompatible constructor argument of type %1">;
2081def err_auto_inconsistent_deduction : Error<
2082  "deduced conflicting types %diff{($ vs $) |}0,1"
2083  "for initializer list element type">;
2084def err_auto_different_deductions : Error<
2085  "%select{'auto'|'decltype(auto)'|'__auto_type'|template arguments}0 "
2086  "deduced as %1 in declaration of %2 and "
2087  "deduced as %3 in declaration of %4">;
2088def err_auto_non_deduced_not_alone : Error<
2089  "%select{function with deduced return type|"
2090  "declaration with trailing return type}0 "
2091  "must be the only declaration in its group">;
2092def err_implied_std_initializer_list_not_found : Error<
2093  "cannot deduce type of initializer list because std::initializer_list was "
2094  "not found; include <initializer_list>">;
2095def err_malformed_std_initializer_list : Error<
2096  "std::initializer_list must be a class template with a single type parameter">;
2097def err_auto_init_list_from_c : Error<
2098  "cannot use __auto_type with initializer list in C">;
2099def err_auto_bitfield : Error<
2100  "cannot pass bit-field as __auto_type initializer in C">;
2101
2102// C++1y decltype(auto) type
2103def err_decltype_auto_invalid : Error<
2104  "'decltype(auto)' not allowed here">;
2105def err_decltype_auto_cannot_be_combined : Error<
2106  "'decltype(auto)' cannot be combined with other type specifiers">;
2107def err_decltype_auto_function_declarator_not_declaration : Error<
2108  "'decltype(auto)' can only be used as a return type "
2109  "in a function declaration">;
2110def err_decltype_auto_compound_type : Error<
2111  "cannot form %select{pointer to|reference to|array of}0 'decltype(auto)'">;
2112def err_decltype_auto_initializer_list : Error<
2113  "cannot deduce 'decltype(auto)' from initializer list">;
2114
2115// C++17 deduced class template specialization types
2116def err_deduced_class_template_compound_type : Error<
2117  "cannot %select{form pointer to|form reference to|form array of|"
2118  "form function returning|use parentheses when declaring variable with}0 "
2119  "deduced class template specialization type">;
2120def err_deduced_non_class_template_specialization_type : Error<
2121  "%select{<error>|function template|variable template|alias template|"
2122  "template template parameter|concept|template}0 %1 requires template "
2123  "arguments; argument deduction only allowed for class templates">;
2124def err_deduced_class_template_ctor_ambiguous : Error<
2125  "ambiguous deduction for template arguments of %0">;
2126def err_deduced_class_template_ctor_no_viable : Error<
2127  "no viable constructor or deduction guide for deduction of "
2128  "template arguments of %0">;
2129def err_deduced_class_template_incomplete : Error<
2130  "template %0 has no definition and no %select{|viable }1deduction guides "
2131  "for deduction of template arguments">;
2132def err_deduced_class_template_deleted : Error<
2133  "class template argument deduction for %0 selected a deleted constructor">;
2134def err_deduced_class_template_explicit : Error<
2135  "class template argument deduction for %0 selected an explicit "
2136  "%select{constructor|deduction guide}1 for copy-list-initialization">;
2137def err_deduction_guide_no_trailing_return_type : Error<
2138  "deduction guide declaration without trailing return type">;
2139def err_deduction_guide_bad_trailing_return_type : Error<
2140  "deduced type %1 of deduction guide is not %select{|written as }2"
2141  "a specialization of template %0">;
2142def err_deduction_guide_with_complex_decl : Error<
2143  "cannot specify any part of a return type in the "
2144  "declaration of a deduction guide">;
2145def err_deduction_guide_invalid_specifier : Error<
2146  "deduction guide cannot be declared '%0'">;
2147def err_deduction_guide_name_not_class_template : Error<
2148  "cannot specify deduction guide for "
2149  "%select{<error>|function template|variable template|alias template|"
2150  "template template parameter|concept|dependent template name}0 %1">;
2151def err_deduction_guide_wrong_scope : Error<
2152  "deduction guide must be declared in the same scope as template %q0">;
2153def err_deduction_guide_defines_function : Error<
2154  "deduction guide cannot have a function definition">;
2155def err_deduction_guide_redeclared : Error<
2156  "redeclaration of deduction guide">;
2157def err_deduction_guide_specialized : Error<"deduction guide cannot be "
2158  "%select{explicitly instantiated|explicitly specialized}0">;
2159def err_deduction_guide_template_not_deducible : Error<
2160  "deduction guide template contains "
2161  "%select{a template parameter|template parameters}0 that cannot be "
2162  "deduced">;
2163def err_deduction_guide_wrong_access : Error<
2164  "deduction guide has different access from the corresponding "
2165  "member template">;
2166def note_deduction_guide_template_access : Note<
2167  "member template declared %0 here">;
2168def note_deduction_guide_access : Note<
2169  "deduction guide declared %0 by intervening access specifier">;
2170def warn_cxx14_compat_class_template_argument_deduction : Warning<
2171  "class template argument deduction is incompatible with C++ standards "
2172  "before C++17%select{|; for compatibility, use explicit type name %1}0">,
2173  InGroup<CXXPre17Compat>, DefaultIgnore;
2174def warn_ctad_maybe_unsupported : Warning<
2175  "%0 may not intend to support class template argument deduction">,
2176  InGroup<CTADMaybeUnsupported>, DefaultIgnore;
2177def note_suppress_ctad_maybe_unsupported : Note<
2178  "add a deduction guide to suppress this warning">;
2179
2180
2181// C++14 deduced return types
2182def err_auto_fn_deduction_failure : Error<
2183  "cannot deduce return type %0 from returned value of type %1">;
2184def err_auto_fn_different_deductions : Error<
2185  "'%select{auto|decltype(auto)}0' in return type deduced as %1 here but "
2186  "deduced as %2 in earlier return statement">;
2187def err_auto_fn_used_before_defined : Error<
2188  "function %0 with deduced return type cannot be used before it is defined">;
2189def err_auto_fn_no_return_but_not_auto : Error<
2190  "cannot deduce return type %0 for function with no return statements">;
2191def err_auto_fn_return_void_but_not_auto : Error<
2192  "cannot deduce return type %0 from omitted return expression">;
2193def err_auto_fn_return_init_list : Error<
2194  "cannot deduce return type from initializer list">;
2195def err_auto_fn_virtual : Error<
2196  "function with deduced return type cannot be virtual">;
2197def warn_cxx11_compat_deduced_return_type : Warning<
2198  "return type deduction is incompatible with C++ standards before C++14">,
2199  InGroup<CXXPre14Compat>, DefaultIgnore;
2200
2201// C++11 override control
2202def override_keyword_only_allowed_on_virtual_member_functions : Error<
2203  "only virtual member functions can be marked '%0'">;
2204def override_keyword_hides_virtual_member_function : Error<
2205  "non-virtual member function marked '%0' hides virtual member "
2206  "%select{function|functions}1">;
2207def err_function_marked_override_not_overriding : Error<
2208  "%0 marked 'override' but does not override any member functions">;
2209def warn_destructor_marked_not_override_overriding : Warning <
2210  "%0 overrides a destructor but is not marked 'override'">,
2211  InGroup<CXX11WarnOverrideDestructor>, DefaultIgnore;
2212def warn_function_marked_not_override_overriding : Warning <
2213  "%0 overrides a member function but is not marked 'override'">,
2214  InGroup<CXX11WarnOverrideMethod>;
2215def err_class_marked_final_used_as_base : Error<
2216  "base %0 is marked '%select{final|sealed}1'">;
2217def warn_abstract_final_class : Warning<
2218  "abstract class is marked '%select{final|sealed}0'">, InGroup<AbstractFinalClass>;
2219
2220// C++11 attributes
2221def err_repeat_attribute : Error<"%0 attribute cannot be repeated">;
2222
2223// C++11 final
2224def err_final_function_overridden : Error<
2225  "declaration of %0 overrides a '%select{final|sealed}1' function">;
2226
2227// C++11 scoped enumerations
2228def err_enum_invalid_underlying : Error<
2229  "non-integral type %0 is an invalid underlying type">;
2230def err_enumerator_too_large : Error<
2231  "enumerator value is not representable in the underlying type %0">;
2232def ext_enumerator_too_large : Extension<
2233  "enumerator value is not representable in the underlying type %0">,
2234  InGroup<MicrosoftEnumValue>;
2235def err_enumerator_wrapped : Error<
2236  "enumerator value %0 is not representable in the underlying type %1">;
2237def err_enum_redeclare_type_mismatch : Error<
2238  "enumeration redeclared with different underlying type %0 (was %1)">;
2239def err_enum_redeclare_fixed_mismatch : Error<
2240  "enumeration previously declared with %select{non|}0fixed underlying type">;
2241def err_enum_redeclare_scoped_mismatch : Error<
2242  "enumeration previously declared as %select{un|}0scoped">;
2243def err_enum_class_reference : Error<
2244  "reference to %select{|scoped }0enumeration must use 'enum' "
2245  "not 'enum class'">;
2246def err_only_enums_have_underlying_types : Error<
2247  "only enumeration types have underlying types">;
2248def err_underlying_type_of_incomplete_enum : Error<
2249  "cannot determine underlying type of incomplete enumeration type %0">;
2250
2251// C++11 delegating constructors
2252def err_delegating_ctor : Error<
2253  "delegating constructors are permitted only in C++11">;
2254def warn_cxx98_compat_delegating_ctor : Warning<
2255  "delegating constructors are incompatible with C++98">,
2256  InGroup<CXX98Compat>, DefaultIgnore;
2257def err_delegating_initializer_alone : Error<
2258  "an initializer for a delegating constructor must appear alone">;
2259def warn_delegating_ctor_cycle : Warning<
2260  "constructor for %0 creates a delegation cycle">, DefaultError,
2261  InGroup<DelegatingCtorCycles>;
2262def note_it_delegates_to : Note<"it delegates to">;
2263def note_which_delegates_to : Note<"which delegates to">;
2264
2265// C++11 range-based for loop
2266def err_for_range_decl_must_be_var : Error<
2267  "for range declaration must declare a variable">;
2268def err_for_range_storage_class : Error<
2269  "loop variable %0 may not be declared %select{'extern'|'static'|"
2270  "'__private_extern__'|'auto'|'register'|'constexpr'}1">;
2271def err_type_defined_in_for_range : Error<
2272  "types may not be defined in a for range declaration">;
2273def err_for_range_deduction_failure : Error<
2274  "cannot use type %0 as a range">;
2275def err_for_range_incomplete_type : Error<
2276  "cannot use incomplete type %0 as a range">;
2277def err_for_range_iter_deduction_failure : Error<
2278  "cannot use type %0 as an iterator">;
2279def ext_for_range_begin_end_types_differ : ExtWarn<
2280  "'begin' and 'end' returning different types (%0 and %1) is a C++17 extension">,
2281  InGroup<CXX17>;
2282def warn_for_range_begin_end_types_differ : Warning<
2283  "'begin' and 'end' returning different types (%0 and %1) is incompatible "
2284  "with C++ standards before C++17">, InGroup<CXXPre17Compat>, DefaultIgnore;
2285def note_in_for_range: Note<
2286  "when looking up '%select{begin|end}0' function for range expression "
2287  "of type %1">;
2288def err_for_range_invalid: Error<
2289  "invalid range expression of type %0; no viable '%select{begin|end}1' "
2290  "function available">;
2291def note_for_range_member_begin_end_ignored : Note<
2292  "member is not a candidate because range type %0 has no '%select{end|begin}1' member">;
2293def err_range_on_array_parameter : Error<
2294  "cannot build range expression with array function parameter %0 since "
2295  "parameter with array type %1 is treated as pointer type %2">;
2296def err_for_range_dereference : Error<
2297  "invalid range expression of type %0; did you mean to dereference it "
2298  "with '*'?">;
2299def note_for_range_invalid_iterator : Note <
2300  "in implicit call to 'operator%select{!=|*|++}0' for iterator of type %1">;
2301def note_for_range_begin_end : Note<
2302  "selected '%select{begin|end}0' %select{function|template }1%2 with iterator type %3">;
2303def warn_for_range_const_reference_copy : Warning<
2304  "loop variable %0 "
2305  "%diff{has type $ but is initialized with type $"
2306  "| is initialized with a value of a different type}1,2 resulting in a copy">,
2307  InGroup<RangeLoopAnalysis>, DefaultIgnore;
2308def note_use_type_or_non_reference : Note<
2309  "use non-reference type %0 to keep the copy or type %1 to prevent copying">;
2310def warn_for_range_variable_always_copy : Warning<
2311  "loop variable %0 is always a copy because the range of type %1 does not "
2312  "return a reference">,
2313  InGroup<RangeLoopAnalysis>, DefaultIgnore;
2314def note_use_non_reference_type : Note<"use non-reference type %0">;
2315def warn_for_range_copy : Warning<
2316  "loop variable %0 of type %1 creates a copy from type %2">,
2317  InGroup<RangeLoopAnalysis>, DefaultIgnore;
2318def note_use_reference_type : Note<"use reference type %0 to prevent copying">;
2319def err_objc_for_range_init_stmt : Error<
2320  "initialization statement is not supported when iterating over Objective-C "
2321  "collection">;
2322
2323// C++11 constexpr
2324def warn_cxx98_compat_constexpr : Warning<
2325  "'constexpr' specifier is incompatible with C++98">,
2326  InGroup<CXX98Compat>, DefaultIgnore;
2327// FIXME: Maybe this should also go in -Wc++14-compat?
2328def warn_cxx14_compat_constexpr_not_const : Warning<
2329  "'constexpr' non-static member function will not be implicitly 'const' "
2330  "in C++14; add 'const' to avoid a change in behavior">,
2331  InGroup<DiagGroup<"constexpr-not-const">>;
2332def err_invalid_constexpr : Error<
2333  "%select{function parameter|typedef|non-static data member}0 "
2334  "cannot be %select{constexpr|consteval}1">;
2335def err_invalid_constexpr_member : Error<"non-static data member cannot be "
2336  "constexpr%select{; did you intend to make it %select{const|static}0?|}1">;
2337def err_constexpr_tag : Error<
2338  "%select{class|struct|interface|union|enum}0 "
2339  "cannot be marked %select{constexpr|consteval}1">;
2340def err_constexpr_dtor : Error<
2341  "destructor cannot be marked %select{constexpr|consteval}0">;
2342def err_constexpr_wrong_decl_kind : Error<
2343  "%select{constexpr|consteval}0 can only be used "
2344  "in %select{variable and |}0function declarations">;
2345def err_invalid_constexpr_var_decl : Error<
2346  "constexpr variable declaration must be a definition">;
2347def err_constexpr_static_mem_var_requires_init : Error<
2348  "declaration of constexpr static data member %0 requires an initializer">;
2349def err_constexpr_var_non_literal : Error<
2350  "constexpr variable cannot have non-literal type %0">;
2351def err_constexpr_var_requires_const_init : Error<
2352  "constexpr variable %0 must be initialized by a constant expression">;
2353def err_constexpr_redecl_mismatch : Error<
2354  "%select{non-constexpr|constexpr|consteval}1 declaration of %0"
2355  " follows %select{non-constexpr|constexpr|consteval}2 declaration">;
2356def err_constexpr_virtual : Error<"virtual function cannot be constexpr">;
2357def warn_cxx17_compat_constexpr_virtual : Warning<
2358  "virtual constexpr functions are incompatible with "
2359  "C++ standards before C++2a">, InGroup<CXXPre2aCompat>, DefaultIgnore;
2360def err_constexpr_virtual_base : Error<
2361  "constexpr %select{member function|constructor}0 not allowed in "
2362  "%select{struct|interface|class}1 with virtual base "
2363  "%plural{1:class|:classes}2">;
2364def note_non_literal_incomplete : Note<
2365  "incomplete type %0 is not a literal type">;
2366def note_non_literal_virtual_base : Note<"%select{struct|interface|class}0 "
2367  "with virtual base %plural{1:class|:classes}1 is not a literal type">;
2368def note_constexpr_virtual_base_here : Note<"virtual base class declared here">;
2369def err_constexpr_non_literal_return : Error<
2370  "%select{constexpr|consteval}0 function's return type %1 is not a literal type">;
2371def err_constexpr_non_literal_param : Error<
2372  "%select{constexpr|consteval}2 %select{function|constructor}1's %ordinal0 parameter type %3 is "
2373  "not a literal type">;
2374def err_constexpr_body_invalid_stmt : Error<
2375  "statement not allowed in %select{constexpr|consteval}1 %select{function|constructor}0">;
2376def ext_constexpr_body_invalid_stmt : ExtWarn<
2377  "use of this statement in a constexpr %select{function|constructor}0 "
2378  "is a C++14 extension">, InGroup<CXX14>;
2379def warn_cxx11_compat_constexpr_body_invalid_stmt : Warning<
2380  "use of this statement in a constexpr %select{function|constructor}0 "
2381  "is incompatible with C++ standards before C++14">,
2382  InGroup<CXXPre14Compat>, DefaultIgnore;
2383def ext_constexpr_body_invalid_stmt_cxx2a : ExtWarn<
2384  "use of this statement in a constexpr %select{function|constructor}0 "
2385  "is a C++2a extension">, InGroup<CXX2a>;
2386def warn_cxx17_compat_constexpr_body_invalid_stmt : Warning<
2387  "use of this statement in a constexpr %select{function|constructor}0 "
2388  "is incompatible with C++ standards before C++2a">,
2389  InGroup<CXXPre2aCompat>, DefaultIgnore;
2390def ext_constexpr_type_definition : ExtWarn<
2391  "type definition in a constexpr %select{function|constructor}0 "
2392  "is a C++14 extension">, InGroup<CXX14>;
2393def warn_cxx11_compat_constexpr_type_definition : Warning<
2394  "type definition in a constexpr %select{function|constructor}0 "
2395  "is incompatible with C++ standards before C++14">,
2396  InGroup<CXXPre14Compat>, DefaultIgnore;
2397def err_constexpr_vla : Error<
2398  "variably-modified type %0 cannot be used in a constexpr "
2399  "%select{function|constructor}1">;
2400def ext_constexpr_local_var : ExtWarn<
2401  "variable declaration in a constexpr %select{function|constructor}0 "
2402  "is a C++14 extension">, InGroup<CXX14>;
2403def warn_cxx11_compat_constexpr_local_var : Warning<
2404  "variable declaration in a constexpr %select{function|constructor}0 "
2405  "is incompatible with C++ standards before C++14">,
2406  InGroup<CXXPre14Compat>, DefaultIgnore;
2407def err_constexpr_local_var_static : Error<
2408  "%select{static|thread_local}1 variable not permitted in a constexpr "
2409  "%select{function|constructor}0">;
2410def err_constexpr_local_var_non_literal_type : Error<
2411  "variable of non-literal type %1 cannot be defined in a constexpr "
2412  "%select{function|constructor}0">;
2413def err_constexpr_local_var_no_init : Error<
2414  "variables defined in a constexpr %select{function|constructor}0 must be "
2415  "initialized">;
2416def ext_constexpr_function_never_constant_expr : ExtWarn<
2417  "constexpr %select{function|constructor}0 never produces a "
2418  "constant expression">, InGroup<DiagGroup<"invalid-constexpr">>, DefaultError;
2419def err_attr_cond_never_constant_expr : Error<
2420  "%0 attribute expression never produces a constant expression">;
2421def err_diagnose_if_invalid_diagnostic_type : Error<
2422  "invalid diagnostic type for 'diagnose_if'; use \"error\" or \"warning\" "
2423  "instead">;
2424def err_constexpr_body_no_return : Error<
2425  "no return statement in %select{constexpr|consteval}0 function">;
2426def err_constexpr_return_missing_expr : Error<
2427  "non-void %select{constexpr|consteval}1 function %0 should return a value">;
2428def warn_cxx11_compat_constexpr_body_no_return : Warning<
2429  "constexpr function with no return statements is incompatible with C++ "
2430  "standards before C++14">, InGroup<CXXPre14Compat>, DefaultIgnore;
2431def ext_constexpr_body_multiple_return : ExtWarn<
2432  "multiple return statements in constexpr function is a C++14 extension">,
2433  InGroup<CXX14>;
2434def warn_cxx11_compat_constexpr_body_multiple_return : Warning<
2435  "multiple return statements in constexpr function "
2436  "is incompatible with C++ standards before C++14">,
2437  InGroup<CXXPre14Compat>, DefaultIgnore;
2438def note_constexpr_body_previous_return : Note<
2439  "previous return statement is here">;
2440def err_constexpr_function_try_block : Error<
2441  "function try block not allowed in constexpr %select{function|constructor}0">;
2442
2443// c++2a function try blocks in constexpr
2444def ext_constexpr_function_try_block_cxx2a : ExtWarn<
2445  "function try block in constexpr %select{function|constructor}0 is "
2446  "a C++2a extension">, InGroup<CXX2a>;
2447def warn_cxx17_compat_constexpr_function_try_block : Warning<
2448  "function try block in constexpr %select{function|constructor}0 is "
2449  "incompatible with C++ standards before C++2a">,
2450  InGroup<CXXPre2aCompat>, DefaultIgnore;
2451
2452def err_constexpr_union_ctor_no_init : Error<
2453  "constexpr union constructor does not initialize any member">;
2454def err_constexpr_ctor_missing_init : Error<
2455  "constexpr constructor must initialize all members">;
2456def note_constexpr_ctor_missing_init : Note<
2457  "member not initialized by constructor">;
2458def note_non_literal_no_constexpr_ctors : Note<
2459  "%0 is not literal because it is not an aggregate and has no constexpr "
2460  "constructors other than copy or move constructors">;
2461def note_non_literal_base_class : Note<
2462  "%0 is not literal because it has base class %1 of non-literal type">;
2463def note_non_literal_field : Note<
2464  "%0 is not literal because it has data member %1 of "
2465  "%select{non-literal|volatile}3 type %2">;
2466def note_non_literal_user_provided_dtor : Note<
2467  "%0 is not literal because it has a user-provided destructor">;
2468def note_non_literal_nontrivial_dtor : Note<
2469  "%0 is not literal because it has a non-trivial destructor">;
2470def note_non_literal_lambda : Note<
2471  "lambda closure types are non-literal types before C++17">;
2472def warn_private_extern : Warning<
2473  "use of __private_extern__ on a declaration may not produce external symbol "
2474  "private to the linkage unit and is deprecated">, InGroup<PrivateExtern>;
2475def note_private_extern : Note<
2476  "use __attribute__((visibility(\"hidden\"))) attribute instead">;
2477
2478// C++ Concepts
2479def err_concept_initialized_with_non_bool_type : Error<
2480  "constraint expression must be of type 'bool' but is of type %0">;
2481def err_concept_decls_may_only_appear_in_global_namespace_scope : Error<
2482  "concept declarations may only appear in global or namespace scope">;
2483def err_concept_no_parameters : Error<
2484  "concept template parameter list must have at least one parameter; explicit "
2485  "specialization of concepts is not allowed">;
2486def err_concept_extra_headers : Error<
2487  "extraneous template parameter list in concept definition">;
2488def err_concept_no_associated_constraints : Error<
2489  "concept cannot have associated constraints">;
2490def err_concept_not_implemented : Error<
2491  "sorry, unimplemented concepts feature %0 used">;
2492
2493def err_template_different_associated_constraints : Error<
2494  "associated constraints differ in template redeclaration">;
2495
2496// C++11 char16_t/char32_t
2497def warn_cxx98_compat_unicode_type : Warning<
2498  "'%0' type specifier is incompatible with C++98">,
2499  InGroup<CXX98Compat>, DefaultIgnore;
2500def warn_cxx17_compat_unicode_type : Warning<
2501  "'char8_t' type specifier is incompatible with C++ standards before C++20">,
2502  InGroup<CXXPre2aCompat>, DefaultIgnore;
2503
2504// __make_integer_seq
2505def err_integer_sequence_negative_length : Error<
2506  "integer sequences must have non-negative sequence length">;
2507def err_integer_sequence_integral_element_type : Error<
2508  "integer sequences must have integral element type">;
2509
2510// __type_pack_element
2511def err_type_pack_element_out_of_bounds : Error<
2512  "a parameter pack may not be accessed at an out of bounds index">;
2513
2514// Objective-C++
2515def err_objc_decls_may_only_appear_in_global_scope : Error<
2516  "Objective-C declarations may only appear in global scope">;
2517def warn_auto_var_is_id : Warning<
2518  "'auto' deduced as 'id' in declaration of %0">,
2519  InGroup<DiagGroup<"auto-var-id">>;
2520
2521// Attributes
2522def err_nsobject_attribute : Error<
2523  "'NSObject' attribute is for pointer types only">;
2524def err_attributes_are_not_compatible : Error<
2525  "%0 and %1 attributes are not compatible">;
2526def err_attribute_wrong_number_arguments : Error<
2527  "%0 attribute %plural{0:takes no arguments|1:takes one argument|"
2528  ":requires exactly %1 arguments}1">;
2529def err_attribute_too_many_arguments : Error<
2530  "%0 attribute takes no more than %1 argument%s1">;
2531def err_attribute_too_few_arguments : Error<
2532  "%0 attribute takes at least %1 argument%s1">;
2533def err_attribute_invalid_vector_type : Error<"invalid vector element type %0">;
2534def err_attribute_bad_neon_vector_size : Error<
2535  "Neon vector size must be 64 or 128 bits">;
2536def err_attribute_requires_positive_integer : Error<
2537  "%0 attribute requires a %select{positive|non-negative}1 "
2538  "integral compile time constant expression">;
2539def err_attribute_requires_opencl_version : Error<
2540  "%0 attribute requires OpenCL version %1%select{| or above}2">;
2541def warn_unsupported_target_attribute
2542    : Warning<"%select{unsupported|duplicate}0%select{| architecture}1 '%2' in"
2543              " the 'target' attribute string; 'target' attribute ignored">,
2544      InGroup<IgnoredAttributes>;
2545def err_attribute_unsupported
2546    : Error<"%0 attribute is not supported for this target">;
2547// The err_*_attribute_argument_not_int are separate because they're used by
2548// VerifyIntegerConstantExpression.
2549def err_aligned_attribute_argument_not_int : Error<
2550  "'aligned' attribute requires integer constant">;
2551def err_align_value_attribute_argument_not_int : Error<
2552  "'align_value' attribute requires integer constant">;
2553def err_alignas_attribute_wrong_decl_type : Error<
2554  "%0 attribute cannot be applied to a %select{function parameter|"
2555  "variable with 'register' storage class|'catch' variable|bit-field}1">;
2556def err_alignas_missing_on_definition : Error<
2557  "%0 must be specified on definition if it is specified on any declaration">;
2558def note_alignas_on_declaration : Note<"declared with %0 attribute here">;
2559def err_alignas_mismatch : Error<
2560  "redeclaration has different alignment requirement (%1 vs %0)">;
2561def err_alignas_underaligned : Error<
2562  "requested alignment is less than minimum alignment of %1 for type %0">;
2563def err_attribute_argument_n_type : Error<
2564  "%0 attribute requires parameter %1 to be %select{int or bool|an integer "
2565  "constant|a string|an identifier}2">;
2566def err_attribute_argument_type : Error<
2567  "%0 attribute requires %select{int or bool|an integer "
2568  "constant|a string|an identifier}1">;
2569def err_attribute_argument_out_of_range : Error<
2570  "%0 attribute requires integer constant between %1 and %2 inclusive">;
2571def err_init_priority_object_attr : Error<
2572  "can only use 'init_priority' attribute on file-scope definitions "
2573  "of objects of class type">;
2574def err_attribute_argument_vec_type_hint : Error<
2575  "invalid attribute argument %0 - expecting a vector or vectorizable scalar type">;
2576def err_attribute_argument_out_of_bounds : Error<
2577  "%0 attribute parameter %1 is out of bounds">;
2578def err_attribute_only_once_per_parameter : Error<
2579  "%0 attribute can only be applied once per parameter">;
2580def err_mismatched_uuid : Error<"uuid does not match previous declaration">;
2581def note_previous_uuid : Note<"previous uuid specified here">;
2582def warn_attribute_pointers_only : Warning<
2583  "%0 attribute only applies to%select{| constant}1 pointer arguments">,
2584  InGroup<IgnoredAttributes>;
2585def err_attribute_pointers_only : Error<warn_attribute_pointers_only.Text>;
2586def err_attribute_integers_only : Error<
2587  "%0 attribute argument may only refer to a function parameter of integer "
2588  "type">;
2589def warn_attribute_return_pointers_only : Warning<
2590  "%0 attribute only applies to return values that are pointers">,
2591  InGroup<IgnoredAttributes>;
2592def warn_attribute_return_pointers_refs_only : Warning<
2593  "%0 attribute only applies to return values that are pointers or references">,
2594  InGroup<IgnoredAttributes>;
2595def warn_attribute_pointer_or_reference_only : Warning<
2596  "%0 attribute only applies to a pointer or reference (%1 is invalid)">,
2597  InGroup<IgnoredAttributes>;
2598def err_attribute_no_member_pointers : Error<
2599  "%0 attribute cannot be used with pointers to members">;
2600def err_attribute_invalid_implicit_this_argument : Error<
2601  "%0 attribute is invalid for the implicit this argument">;
2602def err_ownership_type : Error<
2603  "%0 attribute only applies to %select{pointer|integer}1 arguments">;
2604def err_ownership_returns_index_mismatch : Error<
2605  "'ownership_returns' attribute index does not match; here it is %0">;
2606def note_ownership_returns_index_mismatch : Note<
2607  "declared with index %0 here">;
2608def err_format_strftime_third_parameter : Error<
2609  "strftime format attribute requires 3rd parameter to be 0">;
2610def err_format_attribute_requires_variadic : Error<
2611  "format attribute requires variadic function">;
2612def err_format_attribute_not : Error<"format argument not %0">;
2613def err_format_attribute_result_not : Error<"function does not return %0">;
2614def err_format_attribute_implicit_this_format_string : Error<
2615  "format attribute cannot specify the implicit this argument as the format "
2616  "string">;
2617def err_callback_attribute_no_callee : Error<
2618  "'callback' attribute specifies no callback callee">;
2619def err_callback_attribute_invalid_callee : Error<
2620  "'callback' attribute specifies invalid callback callee">;
2621def err_callback_attribute_multiple : Error<
2622  "multiple 'callback' attributes specified">;
2623def err_callback_attribute_argument_unknown : Error<
2624  "'callback' attribute argument %0 is not a known function parameter">;
2625def err_callback_callee_no_function_type : Error<
2626  "'callback' attribute callee does not have function type">;
2627def err_callback_callee_is_variadic : Error<
2628  "'callback' attribute callee may not be variadic">;
2629def err_callback_implicit_this_not_available : Error<
2630  "'callback' argument at position %0 references unavailable implicit 'this'">;
2631def err_init_method_bad_return_type : Error<
2632  "init methods must return an object pointer type, not %0">;
2633def err_attribute_invalid_size : Error<
2634  "vector size not an integral multiple of component size">;
2635def err_attribute_zero_size : Error<"zero vector size">;
2636def err_attribute_size_too_large : Error<"vector size too large">;
2637def err_typecheck_vector_not_convertable_implict_truncation : Error<
2638   "cannot convert between %select{scalar|vector}0 type %1 and vector type"
2639   " %2 as implicit conversion would cause truncation">;
2640def err_typecheck_vector_not_convertable : Error<
2641  "cannot convert between vector values of different size (%0 and %1)">;
2642def err_typecheck_vector_not_convertable_non_scalar : Error<
2643  "cannot convert between vector and non-scalar values (%0 and %1)">;
2644def err_typecheck_vector_lengths_not_equal : Error<
2645  "vector operands do not have the same number of elements (%0 and %1)">;
2646def warn_typecheck_vector_element_sizes_not_equal : Warning<
2647  "vector operands do not have the same elements sizes (%0 and %1)">,
2648  InGroup<DiagGroup<"vec-elem-size">>, DefaultError;
2649def err_ext_vector_component_exceeds_length : Error<
2650  "vector component access exceeds type %0">;
2651def err_ext_vector_component_name_illegal : Error<
2652  "illegal vector component name '%0'">;
2653def err_attribute_address_space_negative : Error<
2654  "address space is negative">;
2655def err_attribute_address_space_too_high : Error<
2656  "address space is larger than the maximum supported (%0)">;
2657def err_attribute_address_multiple_qualifiers : Error<
2658  "multiple address spaces specified for type">;
2659def warn_attribute_address_multiple_identical_qualifiers : Warning<
2660  "multiple identical address spaces specified for type">,
2661  InGroup<DuplicateDeclSpecifier>;
2662def err_attribute_address_function_type : Error<
2663  "function type may not be qualified with an address space">;
2664def err_as_qualified_auto_decl : Error<
2665  "automatic variable qualified with an%select{| invalid}0 address space">;
2666def err_arg_with_address_space : Error<
2667  "parameter may not be qualified with an address space">;
2668def err_field_with_address_space : Error<
2669  "field may not be qualified with an address space">;
2670def err_compound_literal_with_address_space : Error<
2671  "compound literal in function scope may not be qualified with an address space">;
2672def err_address_space_mismatch_templ_inst : Error<
2673  "conflicting address space qualifiers are provided between types %0 and %1">;
2674def err_attr_objc_ownership_redundant : Error<
2675  "the type %0 is already explicitly ownership-qualified">;
2676def err_invalid_nsnumber_type : Error<
2677  "%0 is not a valid literal type for NSNumber">;
2678def err_objc_illegal_boxed_expression_type : Error<
2679  "illegal type %0 used in a boxed expression">;
2680def err_objc_non_trivially_copyable_boxed_expression_type : Error<
2681  "non-trivially copyable type %0 cannot be used in a boxed expression">;
2682def err_objc_incomplete_boxed_expression_type : Error<
2683  "incomplete type %0 used in a boxed expression">;
2684def err_undeclared_objc_literal_class : Error<
2685  "definition of class %0 must be available to use Objective-C "
2686  "%select{array literals|dictionary literals|numeric literals|boxed expressions|"
2687  "string literals}1">;
2688def err_undeclared_boxing_method : Error<
2689  "declaration of %0 is missing in %1 class">;
2690def err_objc_literal_method_sig : Error<
2691  "literal construction method %0 has incompatible signature">;
2692def note_objc_literal_method_param : Note<
2693  "%select{first|second|third}0 parameter has unexpected type %1 "
2694  "(should be %2)">;
2695def note_objc_literal_method_return : Note<
2696  "method returns unexpected type %0 (should be an object type)">;
2697def err_invalid_collection_element : Error<
2698  "collection element of type %0 is not an Objective-C object">;
2699def err_box_literal_collection : Error<
2700  "%select{string|character|boolean|numeric}0 literal must be prefixed by '@' "
2701  "in a collection">;
2702def warn_objc_literal_comparison : Warning<
2703  "direct comparison of %select{an array literal|a dictionary literal|"
2704  "a numeric literal|a boxed expression|}0 has undefined behavior">,
2705  InGroup<ObjCLiteralComparison>;
2706def err_missing_atsign_prefix : Error<
2707  "string literal must be prefixed by '@' ">;
2708def warn_objc_string_literal_comparison : Warning<
2709  "direct comparison of a string literal has undefined behavior">,
2710  InGroup<ObjCStringComparison>;
2711def warn_concatenated_nsarray_literal : Warning<
2712  "concatenated NSString literal for an NSArray expression - "
2713  "possibly missing a comma">,
2714  InGroup<ObjCStringConcatenation>;
2715def note_objc_literal_comparison_isequal : Note<
2716  "use 'isEqual:' instead">;
2717def warn_objc_collection_literal_element : Warning<
2718  "object of type %0 is not compatible with "
2719  "%select{array element type|dictionary key type|dictionary value type}1 %2">,
2720  InGroup<ObjCLiteralConversion>;
2721def err_swift_param_attr_not_swiftcall : Error<
2722  "'%0' parameter can only be used with swiftcall calling convention">;
2723def err_swift_indirect_result_not_first : Error<
2724  "'swift_indirect_result' parameters must be first parameters of function">;
2725def err_swift_error_result_not_after_swift_context : Error<
2726  "'swift_error_result' parameter must follow 'swift_context' parameter">;
2727def err_swift_abi_parameter_wrong_type : Error<
2728  "'%0' parameter must have pointer%select{| to unqualified pointer}1 type; "
2729  "type here is %2">;
2730
2731def err_attribute_argument_invalid : Error<
2732  "%0 attribute argument is invalid: %select{max must be 0 since min is 0|"
2733  "min must not be greater than max}1">;
2734def err_attribute_argument_is_zero : Error<
2735  "%0 attribute must be greater than 0">;
2736def warn_attribute_argument_n_negative : Warning<
2737  "%0 attribute parameter %1 is negative and will be ignored">,
2738  InGroup<CudaCompat>;
2739def err_property_function_in_objc_container : Error<
2740  "use of Objective-C property in function nested in Objective-C "
2741  "container not supported, move function outside its container">;
2742
2743let CategoryName = "Cocoa API Issue" in {
2744def warn_objc_redundant_literal_use : Warning<
2745  "using %0 with a literal is redundant">, InGroup<ObjCRedundantLiteralUse>;
2746}
2747
2748def err_attr_tlsmodel_arg : Error<"tls_model must be \"global-dynamic\", "
2749  "\"local-dynamic\", \"initial-exec\" or \"local-exec\"">;
2750
2751def err_tls_var_aligned_over_maximum : Error<
2752  "alignment (%0) of thread-local variable %1 is greater than the maximum supported "
2753  "alignment (%2) for a thread-local variable on this target">;
2754
2755def err_only_annotate_after_access_spec : Error<
2756  "access specifier can only have annotation attributes">;
2757
2758def err_attribute_section_invalid_for_target : Error<
2759  "argument to %select{'code_seg'|'section'}1 attribute is not valid for this target: %0">;
2760def warn_attribute_section_drectve : Warning<
2761  "#pragma %0(\".drectve\") has undefined behavior, "
2762  "use #pragma comment(linker, ...) instead">, InGroup<MicrosoftDrectveSection>;
2763def warn_mismatched_section : Warning<
2764  "%select{codeseg|section}0 does not match previous declaration">, InGroup<Section>;
2765def warn_attribute_section_on_redeclaration : Warning<
2766  "section attribute is specified on redeclared variable">, InGroup<Section>;
2767def err_mismatched_code_seg_base : Error<
2768  "derived class must specify the same code segment as its base classes">;
2769def err_mismatched_code_seg_override : Error<
2770  "overriding virtual function must specify the same code segment as its overridden function">;
2771def err_conflicting_codeseg_attribute : Error<
2772  "conflicting code segment specifiers">;
2773def warn_duplicate_codeseg_attribute : Warning<
2774  "duplicate code segment specifiers">, InGroup<Section>;
2775
2776def err_anonymous_property: Error<
2777  "anonymous property is not supported">;
2778def err_property_is_variably_modified : Error<
2779  "property %0 has a variably modified type">;
2780def err_no_accessor_for_property : Error<
2781  "no %select{getter|setter}0 defined for property %1">;
2782def err_cannot_find_suitable_accessor : Error<
2783  "cannot find suitable %select{getter|setter}0 for property %1">;
2784
2785def warn_alloca_align_alignof : Warning<
2786  "second argument to __builtin_alloca_with_align is supposed to be in bits">,
2787  InGroup<DiagGroup<"alloca-with-align-alignof">>;
2788
2789def err_alignment_too_small : Error<
2790  "requested alignment must be %0 or greater">;
2791def err_alignment_too_big : Error<
2792  "requested alignment must be %0 or smaller">;
2793def err_alignment_not_power_of_two : Error<
2794  "requested alignment is not a power of 2">;
2795def err_alignment_dependent_typedef_name : Error<
2796  "requested alignment is dependent but declaration is not dependent">;
2797
2798def err_attribute_aligned_too_great : Error<
2799  "requested alignment must be %0 bytes or smaller">;
2800def warn_redeclaration_without_attribute_prev_attribute_ignored : Warning<
2801  "%q0 redeclared without %1 attribute: previous %1 ignored">,
2802  InGroup<MicrosoftInconsistentDllImport>;
2803def warn_redeclaration_without_import_attribute : Warning<
2804  "%q0 redeclared without 'dllimport' attribute: 'dllexport' attribute added">,
2805  InGroup<MicrosoftInconsistentDllImport>;
2806def warn_dllimport_dropped_from_inline_function : Warning<
2807  "%q0 redeclared inline; %1 attribute ignored">,
2808  InGroup<IgnoredAttributes>;
2809def warn_attribute_ignored : Warning<"%0 attribute ignored">,
2810  InGroup<IgnoredAttributes>;
2811def warn_nothrow_attribute_ignored : Warning<"'nothrow' attribute conflicts with"
2812  " exception specification; attribute ignored">,
2813  InGroup<IgnoredAttributes>;
2814def warn_attribute_ignored_on_inline :
2815  Warning<"%0 attribute ignored on inline function">,
2816  InGroup<IgnoredAttributes>;
2817def warn_nocf_check_attribute_ignored :
2818  Warning<"'nocf_check' attribute ignored; use -fcf-protection to enable the attribute">,
2819  InGroup<IgnoredAttributes>;
2820def warn_attribute_after_definition_ignored : Warning<
2821  "attribute %0 after definition is ignored">,
2822   InGroup<IgnoredAttributes>;
2823def warn_cxx11_gnu_attribute_on_type : Warning<
2824  "attribute %0 ignored, because it cannot be applied to a type">,
2825  InGroup<IgnoredAttributes>;
2826def warn_unhandled_ms_attribute_ignored : Warning<
2827  "__declspec attribute %0 is not supported">,
2828  InGroup<IgnoredAttributes>;
2829def err_decl_attribute_invalid_on_stmt : Error<
2830  "%0 attribute cannot be applied to a statement">;
2831def err_stmt_attribute_invalid_on_decl : Error<
2832  "%0 attribute cannot be applied to a declaration">;
2833def warn_declspec_attribute_ignored : Warning<
2834  "attribute %0 is ignored, place it after "
2835  "\"%select{class|struct|interface|union|enum}1\" to apply attribute to "
2836  "type declaration">, InGroup<IgnoredAttributes>;
2837def warn_attribute_precede_definition : Warning<
2838  "attribute declaration must precede definition">,
2839  InGroup<IgnoredAttributes>;
2840def warn_attribute_void_function_method : Warning<
2841  "attribute %0 cannot be applied to "
2842  "%select{functions|Objective-C method}1 without return value">,
2843  InGroup<IgnoredAttributes>;
2844def warn_attribute_weak_on_field : Warning<
2845  "__weak attribute cannot be specified on a field declaration">,
2846  InGroup<IgnoredAttributes>;
2847def warn_gc_attribute_weak_on_local : Warning<
2848  "Objective-C GC does not allow weak variables on the stack">,
2849  InGroup<IgnoredAttributes>;
2850def warn_nsobject_attribute : Warning<
2851  "'NSObject' attribute may be put on a typedef only; attribute is ignored">,
2852  InGroup<NSobjectAttribute>;
2853def warn_independentclass_attribute : Warning<
2854  "'objc_independent_class' attribute may be put on a typedef only; "
2855  "attribute is ignored">,
2856  InGroup<IndependentClassAttribute>;
2857def warn_ptr_independentclass_attribute : Warning<
2858  "'objc_independent_class' attribute may be put on Objective-C object "
2859  "pointer type only; attribute is ignored">,
2860  InGroup<IndependentClassAttribute>;
2861def warn_attribute_weak_on_local : Warning<
2862  "__weak attribute cannot be specified on an automatic variable when ARC "
2863  "is not enabled">,
2864  InGroup<IgnoredAttributes>;
2865def warn_weak_identifier_undeclared : Warning<
2866  "weak identifier %0 never declared">;
2867def err_attribute_weak_static : Error<
2868  "weak declaration cannot have internal linkage">;
2869def err_attribute_selectany_non_extern_data : Error<
2870  "'selectany' can only be applied to data items with external linkage">;
2871def err_declspec_thread_on_thread_variable : Error<
2872  "'__declspec(thread)' applied to variable that already has a "
2873  "thread-local storage specifier">;
2874def err_attribute_dll_not_extern : Error<
2875  "%q0 must have external linkage when declared %q1">;
2876def err_attribute_dll_thread_local : Error<
2877  "%q0 cannot be thread local when declared %q1">;
2878def err_attribute_dll_lambda : Error<
2879  "lambda cannot be declared %0">;
2880def warn_attribute_invalid_on_definition : Warning<
2881  "'%0' attribute cannot be specified on a definition">,
2882  InGroup<IgnoredAttributes>;
2883def err_attribute_dll_redeclaration : Error<
2884  "redeclaration of %q0 cannot add %q1 attribute">;
2885def warn_attribute_dll_redeclaration : Warning<
2886  "redeclaration of %q0 should not add %q1 attribute">,
2887  InGroup<DiagGroup<"dll-attribute-on-redeclaration">>;
2888def err_attribute_dllimport_function_definition : Error<
2889  "dllimport cannot be applied to non-inline function definition">;
2890def err_attribute_dll_deleted : Error<
2891  "attribute %q0 cannot be applied to a deleted function">;
2892def err_attribute_dllimport_data_definition : Error<
2893  "definition of dllimport data">;
2894def err_attribute_dllimport_static_field_definition : Error<
2895  "definition of dllimport static field not allowed">;
2896def warn_attribute_dllimport_static_field_definition : Warning<
2897  "definition of dllimport static field">,
2898  InGroup<DiagGroup<"dllimport-static-field-def">>;
2899def warn_attribute_dllexport_explicit_instantiation_decl : Warning<
2900  "explicit instantiation declaration should not be 'dllexport'">,
2901  InGroup<DiagGroup<"dllexport-explicit-instantiation-decl">>;
2902def warn_attribute_dllexport_explicit_instantiation_def : Warning<
2903  "'dllexport' attribute ignored on explicit instantiation definition">,
2904  InGroup<IgnoredAttributes>;
2905def warn_invalid_initializer_from_system_header : Warning<
2906  "invalid constructor form class in system header, should not be explicit">,
2907  InGroup<DiagGroup<"invalid-initializer-from-system-header">>;
2908def note_used_in_initialization_here : Note<"used in initialization here">;
2909def err_attribute_dll_member_of_dll_class : Error<
2910  "attribute %q0 cannot be applied to member of %q1 class">;
2911def warn_attribute_dll_instantiated_base_class : Warning<
2912  "propagating dll attribute to %select{already instantiated|explicitly specialized}0 "
2913  "base class template without dll attribute is not supported">,
2914  InGroup<DiagGroup<"unsupported-dll-base-class-template">>, DefaultIgnore;
2915def err_attribute_dll_ambiguous_default_ctor : Error<
2916  "'__declspec(dllexport)' cannot be applied to more than one default constructor in %0">;
2917def err_attribute_weakref_not_static : Error<
2918  "weakref declaration must have internal linkage">;
2919def err_attribute_weakref_not_global_context : Error<
2920  "weakref declaration of %0 must be in a global context">;
2921def err_attribute_weakref_without_alias : Error<
2922  "weakref declaration of %0 must also have an alias attribute">;
2923def err_alias_not_supported_on_darwin : Error <
2924  "aliases are not supported on darwin">;
2925def warn_attribute_wrong_decl_type_str : Warning<
2926  "%0 attribute only applies to %1">, InGroup<IgnoredAttributes>;
2927def err_attribute_wrong_decl_type_str : Error<
2928  warn_attribute_wrong_decl_type_str.Text>;
2929def warn_attribute_wrong_decl_type : Warning<
2930  "%0 attribute only applies to %select{"
2931  "functions"
2932  "|unions"
2933  "|variables and functions"
2934  "|functions and methods"
2935  "|functions, methods and blocks"
2936  "|functions, methods, and parameters"
2937  "|variables"
2938  "|variables and fields"
2939  "|variables, data members and tag types"
2940  "|types and namespaces"
2941  "|variables, functions and classes"
2942  "|kernel functions"
2943  "|non-K&R-style functions}1">,
2944  InGroup<IgnoredAttributes>;
2945def err_attribute_wrong_decl_type : Error<warn_attribute_wrong_decl_type.Text>;
2946def warn_type_attribute_wrong_type : Warning<
2947  "'%0' only applies to %select{function|pointer|"
2948  "Objective-C object or block pointer}1 types; type here is %2">,
2949  InGroup<IgnoredAttributes>;
2950def warn_incomplete_encoded_type : Warning<
2951  "encoding of %0 type is incomplete because %1 component has unknown encoding">,
2952  InGroup<DiagGroup<"encode-type">>;
2953def warn_gnu_inline_attribute_requires_inline : Warning<
2954  "'gnu_inline' attribute requires function to be marked 'inline',"
2955  " attribute ignored">,
2956  InGroup<IgnoredAttributes>;
2957def err_attribute_vecreturn_only_vector_member : Error<
2958  "the vecreturn attribute can only be used on a class or structure with one member, which must be a vector">;
2959def err_attribute_vecreturn_only_pod_record : Error<
2960  "the vecreturn attribute can only be used on a POD (plain old data) class or structure (i.e. no virtual functions)">;
2961def err_cconv_change : Error<
2962  "function declared '%0' here was previously declared "
2963  "%select{'%2'|without calling convention}1">;
2964def warn_cconv_unsupported : Warning<
2965  "%0 calling convention is not supported %select{"
2966  // Use CallingConventionIgnoredReason Enum to specify these.
2967  "for this target"
2968  "|on variadic function"
2969  "|on constructor/destructor"
2970  "|on builtin function"
2971  "}1">,
2972  InGroup<IgnoredAttributes>;
2973def err_cconv_knr : Error<
2974  "function with no prototype cannot use the %0 calling convention">;
2975def warn_cconv_knr : Warning<
2976  err_cconv_knr.Text>,
2977  InGroup<DiagGroup<"missing-prototype-for-cc">>;
2978def err_cconv_varargs : Error<
2979  "variadic function cannot use %0 calling convention">;
2980def err_regparm_mismatch : Error<"function declared with regparm(%0) "
2981  "attribute was previously declared "
2982  "%plural{0:without the regparm|:with the regparm(%1)}1 attribute">;
2983def err_function_attribute_mismatch : Error<
2984  "function declared with %0 attribute "
2985  "was previously declared without the %0 attribute">;
2986def err_objc_precise_lifetime_bad_type : Error<
2987  "objc_precise_lifetime only applies to retainable types; type here is %0">;
2988def warn_objc_precise_lifetime_meaningless : Error<
2989  "objc_precise_lifetime is not meaningful for "
2990  "%select{__unsafe_unretained|__autoreleasing}0 objects">;
2991def err_invalid_pcs : Error<"invalid PCS type">;
2992def warn_attribute_not_on_decl : Warning<
2993  "%0 attribute ignored when parsing type">, InGroup<IgnoredAttributes>;
2994def err_base_specifier_attribute : Error<
2995  "%0 attribute cannot be applied to a base specifier">;
2996def err_invalid_attribute_on_virtual_function : Error<
2997  "%0 attribute cannot be applied to virtual functions">;
2998def warn_declspec_allocator_nonpointer : Warning<
2999  "ignoring __declspec(allocator) because the function return type %0 is not "
3000  "a pointer or reference type">, InGroup<IgnoredAttributes>;
3001def err_cconv_incomplete_param_type : Error<
3002  "parameter %0 must have a complete type to use function %1 with the %2 "
3003  "calling convention">;
3004
3005def ext_cannot_use_trivial_abi : ExtWarn<
3006  "'trivial_abi' cannot be applied to %0">, InGroup<IgnoredAttributes>;
3007
3008// Availability attribute
3009def warn_availability_unknown_platform : Warning<
3010  "unknown platform %0 in availability macro">, InGroup<Availability>;
3011def warn_availability_version_ordering : Warning<
3012  "feature cannot be %select{introduced|deprecated|obsoleted}0 in %1 version "
3013  "%2 before it was %select{introduced|deprecated|obsoleted}3 in version %4; "
3014  "attribute ignored">, InGroup<Availability>;
3015def warn_mismatched_availability: Warning<
3016  "availability does not match previous declaration">, InGroup<Availability>;
3017def warn_mismatched_availability_override : Warning<
3018  "%select{|overriding }4method %select{introduced after|"
3019  "deprecated before|obsoleted before}0 "
3020  "%select{the protocol method it implements|overridden method}4 "
3021  "on %1 (%2 vs. %3)">, InGroup<Availability>;
3022def warn_mismatched_availability_override_unavail : Warning<
3023  "%select{|overriding }1method cannot be unavailable on %0 when "
3024  "%select{the protocol method it implements|its overridden method}1 is "
3025  "available">,
3026  InGroup<Availability>;
3027def warn_availability_on_static_initializer : Warning<
3028  "ignoring availability attribute %select{on '+load' method|"
3029  "with constructor attribute|with destructor attribute}0">,
3030  InGroup<Availability>;
3031def note_overridden_method : Note<
3032  "overridden method is here">;
3033def warn_availability_swift_unavailable_deprecated_only : Warning<
3034  "only 'unavailable' and 'deprecated' are supported for Swift availability">,
3035  InGroup<Availability>;
3036def note_protocol_method : Note<
3037  "protocol method is here">;
3038
3039def warn_unguarded_availability :
3040  Warning<"%0 is only available on %1 %2 or newer">,
3041  InGroup<UnguardedAvailability>, DefaultIgnore;
3042def warn_unguarded_availability_new :
3043  Warning<warn_unguarded_availability.Text>,
3044  InGroup<UnguardedAvailabilityNew>;
3045def note_decl_unguarded_availability_silence : Note<
3046  "annotate %select{%1|anonymous %1}0 with an availability attribute to silence this warning">;
3047def note_unguarded_available_silence : Note<
3048  "enclose %0 in %select{an @available|a __builtin_available}1 check to silence"
3049  " this warning">;
3050def warn_at_available_unchecked_use : Warning<
3051  "%select{@available|__builtin_available}0 does not guard availability here; "
3052  "use if (%select{@available|__builtin_available}0) instead">,
3053  InGroup<DiagGroup<"unsupported-availability-guard">>;
3054
3055// Thread Safety Attributes
3056def warn_invalid_capability_name : Warning<
3057  "invalid capability name '%0'; capability name must be 'mutex' or 'role'">,
3058  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3059def warn_thread_attribute_ignored : Warning<
3060  "ignoring %0 attribute because its argument is invalid">,
3061  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3062def warn_thread_attribute_not_on_non_static_member : Warning<
3063  "%0 attribute without capability arguments can only be applied to non-static "
3064  "methods of a class">,
3065  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3066def warn_thread_attribute_not_on_capability_member : Warning<
3067  "%0 attribute without capability arguments refers to 'this', but %1 isn't "
3068  "annotated with 'capability' or 'scoped_lockable' attribute">,
3069  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3070def warn_thread_attribute_argument_not_lockable : Warning<
3071  "%0 attribute requires arguments whose type is annotated "
3072  "with 'capability' attribute; type here is %1">,
3073  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3074def warn_thread_attribute_decl_not_lockable : Warning<
3075  "%0 attribute can only be applied in a context annotated "
3076  "with 'capability(\"mutex\")' attribute">,
3077  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3078def warn_thread_attribute_decl_not_pointer : Warning<
3079  "%0 only applies to pointer types; type here is %1">,
3080  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3081def err_attribute_argument_out_of_bounds_extra_info : Error<
3082  "%0 attribute parameter %1 is out of bounds: "
3083  "%plural{0:no parameters to index into|"
3084  "1:can only be 1, since there is one parameter|"
3085  ":must be between 1 and %2}2">;
3086
3087// Thread Safety Analysis
3088def warn_unlock_but_no_lock : Warning<"releasing %0 '%1' that was not held">,
3089  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3090def warn_unlock_kind_mismatch : Warning<
3091  "releasing %0 '%1' using %select{shared|exclusive}2 access, expected "
3092  "%select{shared|exclusive}3 access">,
3093  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3094def warn_double_lock : Warning<"acquiring %0 '%1' that is already held">,
3095  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3096def warn_no_unlock : Warning<
3097  "%0 '%1' is still held at the end of function">,
3098  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3099def warn_expecting_locked : Warning<
3100  "expecting %0 '%1' to be held at the end of function">,
3101  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3102// FIXME: improve the error message about locks not in scope
3103def warn_lock_some_predecessors : Warning<
3104  "%0 '%1' is not held on every path through here">,
3105  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3106def warn_expecting_lock_held_on_loop : Warning<
3107  "expecting %0 '%1' to be held at start of each loop">,
3108  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3109def note_locked_here : Note<"%0 acquired here">;
3110def warn_lock_exclusive_and_shared : Warning<
3111  "%0 '%1' is acquired exclusively and shared in the same scope">,
3112  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3113def note_lock_exclusive_and_shared : Note<
3114  "the other acquisition of %0 '%1' is here">;
3115def warn_variable_requires_any_lock : Warning<
3116  "%select{reading|writing}1 variable %0 requires holding "
3117  "%select{any mutex|any mutex exclusively}1">,
3118  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3119def warn_var_deref_requires_any_lock : Warning<
3120  "%select{reading|writing}1 the value pointed to by %0 requires holding "
3121  "%select{any mutex|any mutex exclusively}1">,
3122  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3123def warn_fun_excludes_mutex : Warning<
3124  "cannot call function '%1' while %0 '%2' is held">,
3125  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3126def warn_cannot_resolve_lock : Warning<
3127  "cannot resolve lock expression">,
3128  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3129def warn_acquired_before : Warning<
3130  "%0 '%1' must be acquired before '%2'">,
3131  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3132def warn_acquired_before_after_cycle : Warning<
3133  "Cycle in acquired_before/after dependencies, starting with '%0'">,
3134  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3135
3136
3137// Thread safety warnings negative capabilities
3138def warn_acquire_requires_negative_cap : Warning<
3139  "acquiring %0 '%1' requires negative capability '%2'">,
3140  InGroup<ThreadSafetyNegative>, DefaultIgnore;
3141
3142// Thread safety warnings on pass by reference
3143def warn_guarded_pass_by_reference : Warning<
3144  "passing variable %1 by reference requires holding %0 "
3145  "%select{'%2'|'%2' exclusively}3">,
3146  InGroup<ThreadSafetyReference>, DefaultIgnore;
3147def warn_pt_guarded_pass_by_reference : Warning<
3148  "passing the value that %1 points to by reference requires holding %0 "
3149  "%select{'%2'|'%2' exclusively}3">,
3150  InGroup<ThreadSafetyReference>, DefaultIgnore;
3151
3152// Imprecise thread safety warnings
3153def warn_variable_requires_lock : Warning<
3154  "%select{reading|writing}3 variable %1 requires holding %0 "
3155  "%select{'%2'|'%2' exclusively}3">,
3156  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3157def warn_var_deref_requires_lock : Warning<
3158  "%select{reading|writing}3 the value pointed to by %1 requires "
3159  "holding %0 %select{'%2'|'%2' exclusively}3">,
3160  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3161def warn_fun_requires_lock : Warning<
3162  "calling function %1 requires holding %0 %select{'%2'|'%2' exclusively}3">,
3163  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3164
3165// Precise thread safety warnings
3166def warn_variable_requires_lock_precise :
3167  Warning<warn_variable_requires_lock.Text>,
3168  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
3169def warn_var_deref_requires_lock_precise :
3170  Warning<warn_var_deref_requires_lock.Text>,
3171  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
3172def warn_fun_requires_lock_precise :
3173  Warning<warn_fun_requires_lock.Text>,
3174  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
3175def note_found_mutex_near_match : Note<"found near match '%0'">;
3176
3177// Verbose thread safety warnings
3178def warn_thread_safety_verbose : Warning<"Thread safety verbose warning.">,
3179  InGroup<ThreadSafetyVerbose>, DefaultIgnore;
3180def note_thread_warning_in_fun : Note<"Thread warning in function %0">;
3181def note_guarded_by_declared_here : Note<"Guarded_by declared here.">;
3182
3183// Dummy warning that will trigger "beta" warnings from the analysis if enabled.
3184def warn_thread_safety_beta : Warning<"Thread safety beta warning.">,
3185  InGroup<ThreadSafetyBeta>, DefaultIgnore;
3186
3187// Consumed warnings
3188def warn_use_in_invalid_state : Warning<
3189  "invalid invocation of method '%0' on object '%1' while it is in the '%2' "
3190  "state">, InGroup<Consumed>, DefaultIgnore;
3191def warn_use_of_temp_in_invalid_state : Warning<
3192  "invalid invocation of method '%0' on a temporary object while it is in the "
3193  "'%1' state">, InGroup<Consumed>, DefaultIgnore;
3194def warn_attr_on_unconsumable_class : Warning<
3195  "consumed analysis attribute is attached to member of class '%0' which isn't "
3196  "marked as consumable">, InGroup<Consumed>, DefaultIgnore;
3197def warn_return_typestate_for_unconsumable_type : Warning<
3198  "return state set for an unconsumable type '%0'">, InGroup<Consumed>,
3199  DefaultIgnore;
3200def warn_return_typestate_mismatch : Warning<
3201  "return value not in expected state; expected '%0', observed '%1'">,
3202  InGroup<Consumed>, DefaultIgnore;
3203def warn_loop_state_mismatch : Warning<
3204  "state of variable '%0' must match at the entry and exit of loop">,
3205  InGroup<Consumed>, DefaultIgnore;
3206def warn_param_return_typestate_mismatch : Warning<
3207  "parameter '%0' not in expected state when the function returns: expected "
3208  "'%1', observed '%2'">, InGroup<Consumed>, DefaultIgnore;
3209def warn_param_typestate_mismatch : Warning<
3210  "argument not in expected state; expected '%0', observed '%1'">,
3211  InGroup<Consumed>, DefaultIgnore;
3212
3213// no_sanitize attribute
3214def warn_unknown_sanitizer_ignored : Warning<
3215  "unknown sanitizer '%0' ignored">, InGroup<UnknownSanitizers>;
3216
3217def warn_impcast_vector_scalar : Warning<
3218  "implicit conversion turns vector to scalar: %0 to %1">,
3219  InGroup<Conversion>, DefaultIgnore;
3220def warn_impcast_complex_scalar : Warning<
3221  "implicit conversion discards imaginary component: %0 to %1">,
3222  InGroup<Conversion>, DefaultIgnore;
3223def err_impcast_complex_scalar : Error<
3224  "implicit conversion from %0 to %1 is not permitted in C++">;
3225def warn_impcast_float_precision : Warning<
3226  "implicit conversion loses floating-point precision: %0 to %1">,
3227  InGroup<ImplicitFloatConversion>, DefaultIgnore;
3228def warn_impcast_float_result_precision : Warning<
3229  "implicit conversion when assigning computation result loses floating-point precision: %0 to %1">,
3230  InGroup<ImplicitFloatConversion>, DefaultIgnore;
3231def warn_impcast_double_promotion : Warning<
3232  "implicit conversion increases floating-point precision: %0 to %1">,
3233  InGroup<DoublePromotion>, DefaultIgnore;
3234def warn_impcast_integer_sign : Warning<
3235  "implicit conversion changes signedness: %0 to %1">,
3236  InGroup<SignConversion>, DefaultIgnore;
3237def warn_impcast_integer_sign_conditional : Warning<
3238  "operand of ? changes signedness: %0 to %1">,
3239  InGroup<SignConversion>, DefaultIgnore;
3240def warn_impcast_integer_precision : Warning<
3241  "implicit conversion loses integer precision: %0 to %1">,
3242  InGroup<ImplicitIntConversion>, DefaultIgnore;
3243def warn_impcast_high_order_zero_bits : Warning<
3244  "higher order bits are zeroes after implicit conversion">,
3245  InGroup<ImplicitIntConversion>, DefaultIgnore;
3246def warn_impcast_nonnegative_result : Warning<
3247  "the resulting value is always non-negative after implicit conversion">,
3248  InGroup<SignConversion>, DefaultIgnore;
3249def warn_impcast_integer_64_32 : Warning<
3250  "implicit conversion loses integer precision: %0 to %1">,
3251  InGroup<Shorten64To32>, DefaultIgnore;
3252def warn_impcast_integer_precision_constant : Warning<
3253  "implicit conversion from %2 to %3 changes value from %0 to %1">,
3254  InGroup<ConstantConversion>;
3255def warn_impcast_bitfield_precision_constant : Warning<
3256  "implicit truncation from %2 to bit-field changes value from %0 to %1">,
3257  InGroup<BitFieldConstantConversion>;
3258def warn_impcast_constant_int_to_objc_bool : Warning<
3259  "implicit conversion from constant value %0 to BOOL; "
3260  "the only well defined values for BOOL are YES and NO">,
3261  InGroup<ObjCBoolConstantConversion>;
3262
3263def warn_impcast_fixed_point_range : Warning<
3264  "implicit conversion from %0 cannot fit within the range of values for %1">,
3265  InGroup<ImplicitFixedPointConversion>;
3266
3267def warn_impcast_literal_float_to_integer : Warning<
3268  "implicit conversion from %0 to %1 changes value from %2 to %3">,
3269  InGroup<LiteralConversion>;
3270def warn_impcast_literal_float_to_integer_out_of_range : Warning<
3271  "implicit conversion of out of range value from %0 to %1 is undefined">,
3272  InGroup<LiteralConversion>;
3273def warn_impcast_float_integer : Warning<
3274  "implicit conversion turns floating-point number into integer: %0 to %1">,
3275  InGroup<FloatConversion>, DefaultIgnore;
3276
3277def warn_impcast_float_to_integer : Warning<
3278  "implicit conversion from %0 to %1 changes value from %2 to %3">,
3279  InGroup<FloatOverflowConversion>, DefaultIgnore;
3280def warn_impcast_float_to_integer_out_of_range : Warning<
3281  "implicit conversion of out of range value from %0 to %1 is undefined">,
3282  InGroup<FloatOverflowConversion>, DefaultIgnore;
3283def warn_impcast_float_to_integer_zero : Warning<
3284  "implicit conversion from %0 to %1 changes non-zero value from %2 to %3">,
3285  InGroup<FloatZeroConversion>, DefaultIgnore;
3286
3287def warn_impcast_string_literal_to_bool : Warning<
3288  "implicit conversion turns string literal into bool: %0 to %1">,
3289  InGroup<StringConversion>, DefaultIgnore;
3290def warn_impcast_different_enum_types : Warning<
3291  "implicit conversion from enumeration type %0 to different enumeration type "
3292  "%1">, InGroup<EnumConversion>;
3293def warn_impcast_bool_to_null_pointer : Warning<
3294    "initialization of pointer of type %0 to null from a constant boolean "
3295    "expression">, InGroup<BoolConversion>;
3296def warn_non_literal_null_pointer : Warning<
3297    "expression which evaluates to zero treated as a null pointer constant of "
3298    "type %0">, InGroup<NonLiteralNullConversion>;
3299def warn_impcast_null_pointer_to_integer : Warning<
3300    "implicit conversion of %select{NULL|nullptr}0 constant to %1">,
3301    InGroup<NullConversion>;
3302def warn_impcast_floating_point_to_bool : Warning<
3303    "implicit conversion turns floating-point number into bool: %0 to %1">,
3304    InGroup<ImplicitConversionFloatingPointToBool>;
3305def ext_ms_impcast_fn_obj : ExtWarn<
3306  "implicit conversion between pointer-to-function and pointer-to-object is a "
3307  "Microsoft extension">, InGroup<MicrosoftCast>;
3308
3309def warn_impcast_pointer_to_bool : Warning<
3310    "address of%select{| function| array}0 '%1' will always evaluate to "
3311    "'true'">,
3312    InGroup<PointerBoolConversion>;
3313def warn_cast_nonnull_to_bool : Warning<
3314    "nonnull %select{function call|parameter}0 '%1' will evaluate to "
3315    "'true' on first encounter">,
3316    InGroup<PointerBoolConversion>;
3317def warn_this_bool_conversion : Warning<
3318  "'this' pointer cannot be null in well-defined C++ code; pointer may be "
3319  "assumed to always convert to true">, InGroup<UndefinedBoolConversion>;
3320def warn_address_of_reference_bool_conversion : Warning<
3321  "reference cannot be bound to dereferenced null pointer in well-defined C++ "
3322  "code; pointer may be assumed to always convert to true">,
3323  InGroup<UndefinedBoolConversion>;
3324
3325def warn_null_pointer_compare : Warning<
3326    "comparison of %select{address of|function|array}0 '%1' %select{not |}2"
3327    "equal to a null pointer is always %select{true|false}2">,
3328    InGroup<TautologicalPointerCompare>;
3329def warn_nonnull_expr_compare : Warning<
3330    "comparison of nonnull %select{function call|parameter}0 '%1' "
3331    "%select{not |}2equal to a null pointer is '%select{true|false}2' on first "
3332    "encounter">,
3333    InGroup<TautologicalPointerCompare>;
3334def warn_this_null_compare : Warning<
3335  "'this' pointer cannot be null in well-defined C++ code; comparison may be "
3336  "assumed to always evaluate to %select{true|false}0">,
3337  InGroup<TautologicalUndefinedCompare>;
3338def warn_address_of_reference_null_compare : Warning<
3339  "reference cannot be bound to dereferenced null pointer in well-defined C++ "
3340  "code; comparison may be assumed to always evaluate to "
3341  "%select{true|false}0">,
3342  InGroup<TautologicalUndefinedCompare>;
3343def note_reference_is_return_value : Note<"%0 returns a reference">;
3344
3345def warn_division_sizeof_ptr : Warning<
3346  "'%0' will return the size of the pointer, not the array itself">,
3347  InGroup<DiagGroup<"sizeof-pointer-div">>;
3348
3349def note_function_warning_silence : Note<
3350    "prefix with the address-of operator to silence this warning">;
3351def note_function_to_function_call : Note<
3352    "suffix with parentheses to turn this into a function call">;
3353def warn_impcast_objective_c_literal_to_bool : Warning<
3354    "implicit boolean conversion of Objective-C object literal always "
3355    "evaluates to true">,
3356    InGroup<ObjCLiteralConversion>;
3357
3358def warn_cast_align : Warning<
3359  "cast from %0 to %1 increases required alignment from %2 to %3">,
3360  InGroup<CastAlign>, DefaultIgnore;
3361def warn_old_style_cast : Warning<
3362  "use of old-style cast">, InGroup<OldStyleCast>, DefaultIgnore;
3363
3364// Separate between casts to void* and non-void* pointers.
3365// Some APIs use (abuse) void* for something like a user context,
3366// and often that value is an integer even if it isn't a pointer itself.
3367// Having a separate warning flag allows users to control the warning
3368// for their workflow.
3369def warn_int_to_pointer_cast : Warning<
3370  "cast to %1 from smaller integer type %0">,
3371  InGroup<IntToPointerCast>;
3372def warn_int_to_void_pointer_cast : Warning<
3373  "cast to %1 from smaller integer type %0">,
3374  InGroup<IntToVoidPointerCast>;
3375
3376def warn_attribute_ignored_for_field_of_type : Warning<
3377  "%0 attribute ignored for field of type %1">,
3378  InGroup<IgnoredAttributes>;
3379def warn_no_underlying_type_specified_for_enum_bitfield : Warning<
3380  "enums in the Microsoft ABI are signed integers by default; consider giving "
3381  "the enum %0 an unsigned underlying type to make this code portable">,
3382  InGroup<SignedEnumBitfield>, DefaultIgnore;
3383def warn_attribute_packed_for_bitfield : Warning<
3384  "'packed' attribute was ignored on bit-fields with single-byte alignment "
3385  "in older versions of GCC and Clang">,
3386  InGroup<DiagGroup<"attribute-packed-for-bitfield">>;
3387def warn_transparent_union_attribute_field_size_align : Warning<
3388  "%select{alignment|size}0 of field %1 (%2 bits) does not match the "
3389  "%select{alignment|size}0 of the first field in transparent union; "
3390  "transparent_union attribute ignored">,
3391  InGroup<IgnoredAttributes>;
3392def note_transparent_union_first_field_size_align : Note<
3393  "%select{alignment|size}0 of first field is %1 bits">;
3394def warn_transparent_union_attribute_not_definition : Warning<
3395  "transparent_union attribute can only be applied to a union definition; "
3396  "attribute ignored">,
3397  InGroup<IgnoredAttributes>;
3398def warn_transparent_union_attribute_floating : Warning<
3399  "first field of a transparent union cannot have %select{floating point|"
3400  "vector}0 type %1; transparent_union attribute ignored">,
3401  InGroup<IgnoredAttributes>;
3402def warn_transparent_union_attribute_zero_fields : Warning<
3403  "transparent union definition must contain at least one field; "
3404  "transparent_union attribute ignored">,
3405  InGroup<IgnoredAttributes>;
3406def warn_attribute_type_not_supported : Warning<
3407  "%0 attribute argument not supported: %1">,
3408  InGroup<IgnoredAttributes>;
3409def warn_attribute_unknown_visibility : Warning<"unknown visibility %0">,
3410  InGroup<IgnoredAttributes>;
3411def warn_attribute_protected_visibility :
3412  Warning<"target does not support 'protected' visibility; using 'default'">,
3413  InGroup<DiagGroup<"unsupported-visibility">>;
3414def err_mismatched_visibility: Error<"visibility does not match previous declaration">;
3415def note_previous_attribute : Note<"previous attribute is here">;
3416def note_conflicting_attribute : Note<"conflicting attribute is here">;
3417def note_attribute : Note<"attribute is here">;
3418def err_mismatched_ms_inheritance : Error<
3419  "inheritance model does not match %select{definition|previous declaration}0">;
3420def warn_ignored_ms_inheritance : Warning<
3421  "inheritance model ignored on %select{primary template|partial specialization}0">,
3422  InGroup<IgnoredAttributes>;
3423def note_previous_ms_inheritance : Note<
3424  "previous inheritance model specified here">;
3425def err_machine_mode : Error<"%select{unknown|unsupported}0 machine mode %1">;
3426def err_mode_not_primitive : Error<
3427  "mode attribute only supported for integer and floating-point types">;
3428def err_mode_wrong_type : Error<
3429  "type of machine mode does not match type of base type">;
3430def warn_vector_mode_deprecated : Warning<
3431  "specifying vector types with the 'mode' attribute is deprecated; "
3432  "use the 'vector_size' attribute instead">,
3433  InGroup<DeprecatedAttributes>;
3434def err_complex_mode_vector_type : Error<
3435  "type of machine mode does not support base vector types">;
3436def err_enum_mode_vector_type : Error<
3437  "mode %0 is not supported for enumeration types">;
3438def warn_attribute_nonnull_no_pointers : Warning<
3439  "'nonnull' attribute applied to function with no pointer arguments">,
3440  InGroup<IgnoredAttributes>;
3441def warn_attribute_nonnull_parm_no_args : Warning<
3442  "'nonnull' attribute when used on parameters takes no arguments">,
3443  InGroup<IgnoredAttributes>;
3444def note_declared_nonnull : Note<
3445  "declared %select{'returns_nonnull'|'nonnull'}0 here">;
3446def warn_attribute_sentinel_named_arguments : Warning<
3447  "'sentinel' attribute requires named arguments">,
3448  InGroup<IgnoredAttributes>;
3449def warn_attribute_sentinel_not_variadic : Warning<
3450  "'sentinel' attribute only supported for variadic %select{functions|blocks}0">,
3451  InGroup<IgnoredAttributes>;
3452def err_attribute_sentinel_less_than_zero : Error<
3453  "'sentinel' parameter 1 less than zero">;
3454def err_attribute_sentinel_not_zero_or_one : Error<
3455  "'sentinel' parameter 2 not 0 or 1">;
3456def warn_cleanup_ext : Warning<
3457  "GCC does not allow the 'cleanup' attribute argument to be anything other "
3458  "than a simple identifier">,
3459  InGroup<GccCompat>;
3460def err_attribute_cleanup_arg_not_function : Error<
3461  "'cleanup' argument %select{|%1 |%1 }0is not a %select{||single }0function">;
3462def err_attribute_cleanup_func_must_take_one_arg : Error<
3463  "'cleanup' function %0 must take 1 parameter">;
3464def err_attribute_cleanup_func_arg_incompatible_type : Error<
3465  "'cleanup' function %0 parameter has "
3466  "%diff{type $ which is incompatible with type $|incompatible type}1,2">;
3467def err_attribute_regparm_wrong_platform : Error<
3468  "'regparm' is not valid on this platform">;
3469def err_attribute_regparm_invalid_number : Error<
3470  "'regparm' parameter must be between 0 and %0 inclusive">;
3471def err_attribute_not_supported_in_lang : Error<
3472  "%0 attribute is not supported in %select{C|C++|Objective-C}1">;
3473def err_attribute_not_supported_on_arch
3474    : Error<"%0 attribute is not supported on '%1'">;
3475def warn_gcc_ignores_type_attr : Warning<
3476  "GCC does not allow the %0 attribute to be written on a type">,
3477  InGroup<GccCompat>;
3478
3479// Clang-Specific Attributes
3480def warn_attribute_iboutlet : Warning<
3481  "%0 attribute can only be applied to instance variables or properties">,
3482  InGroup<IgnoredAttributes>;
3483def err_iboutletcollection_type : Error<
3484  "invalid type %0 as argument of iboutletcollection attribute">;
3485def err_iboutletcollection_builtintype : Error<
3486  "type argument of iboutletcollection attribute cannot be a builtin type">;
3487def warn_iboutlet_object_type : Warning<
3488  "%select{instance variable|property}2 with %0 attribute must "
3489  "be an object type (invalid %1)">, InGroup<ObjCInvalidIBOutletProperty>;
3490def warn_iboutletcollection_property_assign : Warning<
3491  "IBOutletCollection properties should be copy/strong and not assign">,
3492  InGroup<ObjCInvalidIBOutletProperty>;
3493
3494def err_attribute_overloadable_mismatch : Error<
3495  "redeclaration of %0 must %select{not |}1have the 'overloadable' attribute">;
3496def note_attribute_overloadable_prev_overload : Note<
3497  "previous %select{unmarked |}0overload of function is here">;
3498def err_attribute_overloadable_no_prototype : Error<
3499  "'overloadable' function %0 must have a prototype">;
3500def err_attribute_overloadable_multiple_unmarked_overloads : Error<
3501  "at most one overload for a given name may lack the 'overloadable' "
3502  "attribute">;
3503def warn_ns_attribute_wrong_return_type : Warning<
3504  "%0 attribute only applies to %select{functions|methods|properties}1 that "
3505  "return %select{an Objective-C object|a pointer|a non-retainable pointer}2">,
3506  InGroup<IgnoredAttributes>;
3507def err_ns_attribute_wrong_parameter_type : Error<
3508  "%0 attribute only applies to "
3509  "%select{Objective-C object|pointer|pointer-to-CF-pointer}1 parameters">;
3510def warn_ns_attribute_wrong_parameter_type : Warning<
3511  "%0 attribute only applies to "
3512  "%select{Objective-C object|pointer|pointer-to-CF-pointer|pointer/reference-to-OSObject-pointer}1 parameters">,
3513  InGroup<IgnoredAttributes>;
3514def warn_objc_requires_super_protocol : Warning<
3515  "%0 attribute cannot be applied to %select{methods in protocols|dealloc}1">,
3516  InGroup<DiagGroup<"requires-super-attribute">>;
3517def note_protocol_decl : Note<
3518  "protocol is declared here">;
3519def note_protocol_decl_undefined : Note<
3520  "protocol %0 has no definition">;
3521
3522// objc_designated_initializer attribute diagnostics.
3523def warn_objc_designated_init_missing_super_call : Warning<
3524  "designated initializer missing a 'super' call to a designated initializer of the super class">,
3525  InGroup<ObjCDesignatedInit>;
3526def note_objc_designated_init_marked_here : Note<
3527  "method marked as designated initializer of the class here">;
3528def warn_objc_designated_init_non_super_designated_init_call : Warning<
3529  "designated initializer should only invoke a designated initializer on 'super'">,
3530  InGroup<ObjCDesignatedInit>;
3531def warn_objc_designated_init_non_designated_init_call : Warning<
3532  "designated initializer invoked a non-designated initializer">,
3533  InGroup<ObjCDesignatedInit>;
3534def warn_objc_secondary_init_super_init_call : Warning<
3535  "convenience initializer should not invoke an initializer on 'super'">,
3536  InGroup<ObjCDesignatedInit>;
3537def warn_objc_secondary_init_missing_init_call : Warning<
3538  "convenience initializer missing a 'self' call to another initializer">,
3539  InGroup<ObjCDesignatedInit>;
3540def warn_objc_implementation_missing_designated_init_override : Warning<
3541  "method override for the designated initializer of the superclass %objcinstance0 not found">,
3542  InGroup<ObjCDesignatedInit>;
3543def err_designated_init_attr_non_init : Error<
3544  "'objc_designated_initializer' attribute only applies to init methods "
3545  "of interface or class extension declarations">;
3546
3547// objc_bridge attribute diagnostics.
3548def err_objc_attr_not_id : Error<
3549  "parameter of %0 attribute must be a single name of an Objective-C %select{class|protocol}1">;
3550def err_objc_attr_typedef_not_id : Error<
3551  "parameter of %0 attribute must be 'id' when used on a typedef">;
3552def err_objc_attr_typedef_not_void_pointer : Error<
3553  "'objc_bridge(id)' is only allowed on structs and typedefs of void pointers">;
3554def err_objc_cf_bridged_not_interface : Error<
3555  "CF object of type %0 is bridged to %1, which is not an Objective-C class">;
3556def err_objc_ns_bridged_invalid_cfobject : Error<
3557  "ObjectiveC object of type %0 is bridged to %1, which is not valid CF object">;
3558def warn_objc_invalid_bridge : Warning<
3559  "%0 bridges to %1, not %2">, InGroup<ObjCBridge>;
3560def warn_objc_invalid_bridge_to_cf : Warning<
3561  "%0 cannot bridge to %1">, InGroup<ObjCBridge>;
3562
3563// objc_bridge_related attribute diagnostics.
3564def err_objc_bridged_related_invalid_class : Error<
3565  "could not find Objective-C class %0 to convert %1 to %2">;
3566def err_objc_bridged_related_invalid_class_name : Error<
3567  "%0 must be name of an Objective-C class to be able to convert %1 to %2">;
3568def err_objc_bridged_related_known_method : Error<
3569 "%0 must be explicitly converted to %1; use %select{%objcclass2|%objcinstance2}3 "
3570 "method for this conversion">;
3571
3572def err_objc_attr_protocol_requires_definition : Error<
3573  "attribute %0 can only be applied to @protocol definitions, not forward declarations">;
3574
3575def warn_ignored_objc_externally_retained : Warning<
3576  "'objc_externally_retained' can only be applied to local variables "
3577  "%select{of retainable type|with strong ownership}0">,
3578  InGroup<IgnoredAttributes>;
3579
3580// Function Parameter Semantic Analysis.
3581def err_param_with_void_type : Error<"argument may not have 'void' type">;
3582def err_void_only_param : Error<
3583  "'void' must be the first and only parameter if specified">;
3584def err_void_param_qualified : Error<
3585  "'void' as parameter must not have type qualifiers">;
3586def err_ident_list_in_fn_declaration : Error<
3587  "a parameter list without types is only allowed in a function definition">;
3588def ext_param_not_declared : Extension<
3589  "parameter %0 was not declared, defaulting to type 'int'">;
3590def err_param_default_argument : Error<
3591  "C does not support default arguments">;
3592def err_param_default_argument_redefinition : Error<
3593  "redefinition of default argument">;
3594def ext_param_default_argument_redefinition : ExtWarn<
3595  err_param_default_argument_redefinition.Text>,
3596  InGroup<MicrosoftDefaultArgRedefinition>;
3597def err_param_default_argument_missing : Error<
3598  "missing default argument on parameter">;
3599def err_param_default_argument_missing_name : Error<
3600  "missing default argument on parameter %0">;
3601def err_param_default_argument_references_param : Error<
3602  "default argument references parameter %0">;
3603def err_param_default_argument_references_local : Error<
3604  "default argument references local variable %0 of enclosing function">;
3605def err_param_default_argument_references_this : Error<
3606  "default argument references 'this'">;
3607def err_param_default_argument_nonfunc : Error<
3608  "default arguments can only be specified for parameters in a function "
3609  "declaration">;
3610def err_param_default_argument_template_redecl : Error<
3611  "default arguments cannot be added to a function template that has already "
3612  "been declared">;
3613def err_param_default_argument_member_template_redecl : Error<
3614  "default arguments cannot be added to an out-of-line definition of a member "
3615  "of a %select{class template|class template partial specialization|nested "
3616  "class in a template}0">;
3617def err_param_default_argument_on_parameter_pack : Error<
3618  "parameter pack cannot have a default argument">;
3619def err_uninitialized_member_for_assign : Error<
3620  "cannot define the implicit copy assignment operator for %0, because "
3621  "non-static %select{reference|const}1 member %2 cannot use copy "
3622  "assignment operator">;
3623def err_uninitialized_member_in_ctor : Error<
3624  "%select{constructor for %1|"
3625  "implicit default constructor for %1|"
3626  "cannot use constructor inherited from %1:}0 must explicitly "
3627  "initialize the %select{reference|const}2 member %3">;
3628def err_default_arg_makes_ctor_special : Error<
3629  "addition of default argument on redeclaration makes this constructor a "
3630  "%select{default|copy|move}0 constructor">;
3631
3632def err_use_of_default_argument_to_function_declared_later : Error<
3633  "use of default argument to function %0 that is declared later in class %1">;
3634def note_default_argument_declared_here : Note<
3635  "default argument declared here">;
3636def err_recursive_default_argument : Error<"recursive evaluation of default argument">;
3637
3638def ext_param_promoted_not_compatible_with_prototype : ExtWarn<
3639  "%diff{promoted type $ of K&R function parameter is not compatible with the "
3640  "parameter type $|promoted type of K&R function parameter is not compatible "
3641  "with parameter type}0,1 declared in a previous prototype">,
3642  InGroup<KNRPromotedParameter>;
3643
3644
3645// C++ Overloading Semantic Analysis.
3646def err_ovl_diff_return_type : Error<
3647  "functions that differ only in their return type cannot be overloaded">;
3648def err_ovl_static_nonstatic_member : Error<
3649  "static and non-static member functions with the same parameter types "
3650  "cannot be overloaded">;
3651
3652def err_ovl_no_viable_function_in_call : Error<
3653  "no matching function for call to %0">;
3654def err_ovl_no_viable_member_function_in_call : Error<
3655  "no matching member function for call to %0">;
3656def err_ovl_ambiguous_call : Error<
3657  "call to %0 is ambiguous">;
3658def err_ovl_deleted_call : Error<"call to deleted function %0">;
3659def err_ovl_ambiguous_member_call : Error<
3660  "call to member function %0 is ambiguous">;
3661def err_ovl_deleted_member_call : Error<
3662  "call to deleted member function %0">;
3663def note_ovl_too_many_candidates : Note<
3664    "remaining %0 candidate%s0 omitted; "
3665    "pass -fshow-overloads=all to show them">;
3666
3667def select_ovl_candidate_kind : TextSubstitution<
3668  "%select{function|function|constructor|"
3669    "constructor (the implicit default constructor)|"
3670    "constructor (the implicit copy constructor)|"
3671    "constructor (the implicit move constructor)|"
3672    "function (the implicit copy assignment operator)|"
3673    "function (the implicit move assignment operator)|"
3674    "inherited constructor}0%select{| template| %2}1">;
3675
3676def note_ovl_candidate : Note<
3677    "candidate %sub{select_ovl_candidate_kind}0,1,3"
3678    "%select{| has different class%diff{ (expected $ but has $)|}5,6"
3679    "| has different number of parameters (expected %5 but has %6)"
3680    "| has type mismatch at %ordinal5 parameter"
3681    "%diff{ (expected $ but has $)|}6,7"
3682    "| has different return type%diff{ ($ expected but has $)|}5,6"
3683    "| has different qualifiers (expected %5 but found %6)"
3684    "| has different exception specification}4">;
3685
3686def note_ovl_candidate_explicit_forbidden : Note<
3687    "candidate %0 ignored: cannot be explicit">;
3688def note_explicit_bool_resolved_to_true : Note<
3689    "explicit(bool) specifier resolved to true">;
3690def note_ovl_candidate_inherited_constructor : Note<
3691    "constructor from base class %0 inherited here">;
3692def note_ovl_candidate_inherited_constructor_slice : Note<
3693    "candidate %select{constructor|template}0 ignored: "
3694    "inherited constructor cannot be used to %select{copy|move}1 object">;
3695def note_ovl_candidate_illegal_constructor : Note<
3696    "candidate %select{constructor|template}0 ignored: "
3697    "instantiation %select{takes|would take}0 its own class type by value">;
3698def note_ovl_candidate_illegal_constructor_adrspace_mismatch : Note<
3699    "candidate constructor ignored: cannot be used to construct an object "
3700    "in address space %0">;
3701def note_ovl_candidate_bad_deduction : Note<
3702    "candidate template ignored: failed template argument deduction">;
3703def note_ovl_candidate_incomplete_deduction : Note<"candidate template ignored: "
3704    "couldn't infer template argument %0">;
3705def note_ovl_candidate_incomplete_deduction_pack : Note<"candidate template ignored: "
3706    "deduced too few arguments for expanded pack %0; no argument for %ordinal1 "
3707    "expanded parameter in deduced argument pack %2">;
3708def note_ovl_candidate_inconsistent_deduction : Note<
3709    "candidate template ignored: deduced conflicting %select{types|values|"
3710    "templates}0 for parameter %1%diff{ ($ vs. $)|}2,3">;
3711def note_ovl_candidate_inconsistent_deduction_types : Note<
3712    "candidate template ignored: deduced values %diff{"
3713    "of conflicting types for parameter %0 (%1 of type $ vs. %3 of type $)|"
3714    "%1 and %3 of conflicting types for parameter %0}2,4">;
3715def note_ovl_candidate_explicit_arg_mismatch_named : Note<
3716    "candidate template ignored: invalid explicitly-specified argument "
3717    "for template parameter %0">;
3718def note_ovl_candidate_explicit_arg_mismatch_unnamed : Note<
3719    "candidate template ignored: invalid explicitly-specified argument "
3720    "for %ordinal0 template parameter">;
3721def note_ovl_candidate_instantiation_depth : Note<
3722    "candidate template ignored: substitution exceeded maximum template "
3723    "instantiation depth">;
3724def note_ovl_candidate_underqualified : Note<
3725    "candidate template ignored: cannot deduce a type for %0 that would "
3726    "make %2 equal %1">;
3727def note_ovl_candidate_substitution_failure : Note<
3728    "candidate template ignored: substitution failure%0%1">;
3729def note_ovl_candidate_disabled_by_enable_if : Note<
3730    "candidate template ignored: disabled by %0%1">;
3731def note_ovl_candidate_disabled_by_requirement : Note<
3732    "candidate template ignored: requirement '%0' was not satisfied%1">;
3733def note_ovl_candidate_has_pass_object_size_params: Note<
3734    "candidate address cannot be taken because parameter %0 has "
3735    "pass_object_size attribute">;
3736def err_diagnose_if_succeeded : Error<"%0">;
3737def warn_diagnose_if_succeeded : Warning<"%0">, InGroup<UserDefinedWarnings>,
3738    ShowInSystemHeader;
3739def note_ovl_candidate_disabled_by_function_cond_attr : Note<
3740    "candidate disabled: %0">;
3741def note_ovl_candidate_disabled_by_extension : Note<
3742    "candidate unavailable as it requires OpenCL extension '%0' to be enabled">;
3743def err_addrof_function_disabled_by_enable_if_attr : Error<
3744    "cannot take address of function %0 because it has one or more "
3745    "non-tautological enable_if conditions">;
3746def note_addrof_ovl_candidate_disabled_by_enable_if_attr : Note<
3747    "candidate function made ineligible by enable_if">;
3748def note_ovl_candidate_deduced_mismatch : Note<
3749    "candidate template ignored: deduced type "
3750    "%diff{$ of %select{|element of }4%ordinal0 parameter does not match "
3751    "adjusted type $ of %select{|element of }4argument"
3752    "|of %select{|element of }4%ordinal0 parameter does not match "
3753    "adjusted type of %select{|element of }4argument}1,2%3">;
3754def note_ovl_candidate_non_deduced_mismatch : Note<
3755    "candidate template ignored: could not match %diff{$ against $|types}0,1">;
3756// This note is needed because the above note would sometimes print two
3757// different types with the same name.  Remove this note when the above note
3758// can handle that case properly.
3759def note_ovl_candidate_non_deduced_mismatch_qualified : Note<
3760    "candidate template ignored: could not match %q0 against %q1">;
3761
3762// Note that we don't treat templates differently for this diagnostic.
3763def note_ovl_candidate_arity : Note<"candidate "
3764    "%sub{select_ovl_candidate_kind}0,1,2 not viable: "
3765    "requires%select{ at least| at most|}3 %4 argument%s4, but %5 "
3766    "%plural{1:was|:were}5 provided">;
3767
3768def note_ovl_candidate_arity_one : Note<"candidate "
3769    "%sub{select_ovl_candidate_kind}0,1,2 not viable: "
3770    "%select{requires at least|allows at most single|requires single}3 "
3771    "argument %4, but %plural{0:no|:%5}5 arguments were provided">;
3772
3773def note_ovl_candidate_deleted : Note<
3774    "candidate %sub{select_ovl_candidate_kind}0,1,2 has been "
3775    "%select{explicitly made unavailable|explicitly deleted|"
3776    "implicitly deleted}3">;
3777
3778// Giving the index of the bad argument really clutters this message, and
3779// it's relatively unimportant because 1) it's generally obvious which
3780// argument(s) are of the given object type and 2) the fix is usually
3781// to complete the type, which doesn't involve changes to the call line
3782// anyway.  If people complain, we can change it.
3783def note_ovl_candidate_bad_conv_incomplete : Note<
3784    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3785    "cannot convert argument of incomplete type "
3786    "%diff{$ to $|to parameter type}3,4 for "
3787    "%select{%ordinal6 argument|object argument}5"
3788    "%select{|; dereference the argument with *|"
3789    "; take the address of the argument with &|"
3790    "; remove *|"
3791    "; remove &}7">;
3792def note_ovl_candidate_bad_list_argument : Note<
3793    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3794    "cannot convert initializer list argument to %4">;
3795def note_ovl_candidate_bad_overload : Note<
3796    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3797    "no overload of %4 matching %3 for %ordinal5 argument">;
3798def note_ovl_candidate_bad_conv : Note<
3799    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3800    "no known conversion "
3801    "%diff{from $ to $|from argument type to parameter type}3,4 for "
3802    "%select{%ordinal6 argument|object argument}5"
3803    "%select{|; dereference the argument with *|"
3804    "; take the address of the argument with &|"
3805    "; remove *|"
3806    "; remove &}7">;
3807def note_ovl_candidate_bad_arc_conv : Note<
3808    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3809    "cannot implicitly convert argument "
3810    "%diff{of type $ to $|type to parameter type}3,4 for "
3811    "%select{%ordinal6 argument|object argument}5 under ARC">;
3812def note_ovl_candidate_bad_lvalue : Note<
3813    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3814    "expects an l-value for "
3815    "%select{%ordinal4 argument|object argument}3">;
3816def note_ovl_candidate_bad_addrspace : Note<
3817    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3818    "address space mismatch in %select{%ordinal6|'this'}5 argument (%3), "
3819    "parameter type must be %4">;
3820def note_ovl_candidate_bad_gc : Note<
3821    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3822    "%select{%ordinal7|'this'}6 argument (%3) has %select{no|__weak|__strong}4 "
3823    "ownership, but parameter has %select{no|__weak|__strong}5 ownership">;
3824def note_ovl_candidate_bad_ownership : Note<
3825    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3826    "%select{%ordinal7|'this'}6 argument (%3) has "
3827    "%select{no|__unsafe_unretained|__strong|__weak|__autoreleasing}4 ownership,"
3828    " but parameter has %select{no|__unsafe_unretained|__strong|__weak|"
3829    "__autoreleasing}5 ownership">;
3830def note_ovl_candidate_bad_cvr_this : Note<
3831    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3832    "'this' argument has type %3, but method is not marked "
3833    "%select{const|restrict|const or restrict|volatile|const or volatile|"
3834    "volatile or restrict|const, volatile, or restrict}4">;
3835def note_ovl_candidate_bad_cvr : Note<
3836    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3837    "%ordinal5 argument (%3) would lose "
3838    "%select{const|restrict|const and restrict|volatile|const and volatile|"
3839    "volatile and restrict|const, volatile, and restrict}4 qualifier"
3840    "%select{||s||s|s|s}4">;
3841def note_ovl_candidate_bad_unaligned : Note<
3842    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3843    "%ordinal5 argument (%3) would lose __unaligned qualifier">;
3844def note_ovl_candidate_bad_base_to_derived_conv : Note<
3845    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3846    "cannot %select{convert from|convert from|bind}3 "
3847    "%select{base class pointer|superclass|base class object of type}3 %4 to "
3848    "%select{derived class pointer|subclass|derived class reference}3 %5 for "
3849    "%ordinal6 argument">;
3850def note_ovl_candidate_bad_target : Note<
3851    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
3852    "call to "
3853    "%select{__device__|__global__|__host__|__host__ __device__|invalid}3 function from"
3854    " %select{__device__|__global__|__host__|__host__ __device__|invalid}4 function">;
3855def note_implicit_member_target_infer_collision : Note<
3856    "implicit %sub{select_special_member_kind}0 inferred target collision: call to both "
3857    "%select{__device__|__global__|__host__|__host__ __device__}1 and "
3858    "%select{__device__|__global__|__host__|__host__ __device__}2 members">;
3859
3860def note_ambiguous_type_conversion: Note<
3861    "because of ambiguity in conversion %diff{of $ to $|between types}0,1">;
3862def note_ovl_builtin_binary_candidate : Note<
3863    "built-in candidate %0">;
3864def note_ovl_builtin_unary_candidate : Note<
3865    "built-in candidate %0">;
3866def err_ovl_no_viable_function_in_init : Error<
3867  "no matching constructor for initialization of %0">;
3868def err_ovl_no_conversion_in_cast : Error<
3869  "cannot convert %1 to %2 without a conversion operator">;
3870def err_ovl_no_viable_conversion_in_cast : Error<
3871  "no matching conversion for %select{|static_cast|reinterpret_cast|"
3872  "dynamic_cast|C-style cast|functional-style cast}0 from %1 to %2">;
3873def err_ovl_ambiguous_conversion_in_cast : Error<
3874  "ambiguous conversion for %select{|static_cast|reinterpret_cast|"
3875  "dynamic_cast|C-style cast|functional-style cast}0 from %1 to %2">;
3876def err_ovl_deleted_conversion_in_cast : Error<
3877  "%select{|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
3878  "functional-style cast}0 from %1 to %2 uses deleted function">;
3879def err_ovl_ambiguous_init : Error<"call to constructor of %0 is ambiguous">;
3880def err_ref_init_ambiguous : Error<
3881  "reference initialization of type %0 with initializer of type %1 is ambiguous">;
3882def err_ovl_deleted_init : Error<
3883  "call to deleted constructor of %0">;
3884def err_ovl_deleted_special_init : Error<
3885  "call to implicitly-deleted %select{default constructor|copy constructor|"
3886  "move constructor|copy assignment operator|move assignment operator|"
3887  "destructor|function}0 of %1">;
3888def err_ovl_ambiguous_oper_unary : Error<
3889  "use of overloaded operator '%0' is ambiguous (operand type %1)">;
3890def err_ovl_ambiguous_oper_binary : Error<
3891  "use of overloaded operator '%0' is ambiguous (with operand types %1 and %2)">;
3892def err_ovl_no_viable_oper : Error<"no viable overloaded '%0'">;
3893def note_assign_lhs_incomplete : Note<"type %0 is incomplete">;
3894def err_ovl_deleted_oper : Error<
3895  "overload resolution selected deleted operator '%0'">;
3896def err_ovl_deleted_special_oper : Error<
3897  "object of type %0 cannot be %select{constructed|copied|moved|assigned|"
3898  "assigned|destroyed}1 because its %sub{select_special_member_kind}1 is implicitly deleted">;
3899def err_ovl_no_viable_subscript :
3900    Error<"no viable overloaded operator[] for type %0">;
3901def err_ovl_no_oper :
3902    Error<"type %0 does not provide a %select{subscript|call}1 operator">;
3903def err_ovl_unresolvable : Error<
3904  "reference to %select{overloaded|multiversioned}1 function could not be "
3905  "resolved; did you mean to call it%select{| with no arguments}0?">;
3906def err_bound_member_function : Error<
3907  "reference to non-static member function must be called"
3908  "%select{|; did you mean to call it with no arguments?}0">;
3909def note_possible_target_of_call : Note<"possible target for call">;
3910
3911def err_ovl_no_viable_object_call : Error<
3912  "no matching function for call to object of type %0">;
3913def err_ovl_ambiguous_object_call : Error<
3914  "call to object of type %0 is ambiguous">;
3915def err_ovl_deleted_object_call : Error<
3916  "call to deleted function call operator in type %0">;
3917def note_ovl_surrogate_cand : Note<"conversion candidate of type %0">;
3918def err_member_call_without_object : Error<
3919  "call to non-static member function without an object argument">;
3920
3921// C++ Address of Overloaded Function
3922def err_addr_ovl_no_viable : Error<
3923  "address of overloaded function %0 does not match required type %1">;
3924def err_addr_ovl_ambiguous : Error<
3925  "address of overloaded function %0 is ambiguous">;
3926def err_addr_ovl_not_func_ptrref : Error<
3927  "address of overloaded function %0 cannot be converted to type %1">;
3928def err_addr_ovl_no_qualifier : Error<
3929  "cannot form member pointer of type %0 without '&' and class name">;
3930
3931// C++11 Literal Operators
3932def err_ovl_no_viable_literal_operator : Error<
3933  "no matching literal operator for call to %0"
3934  "%select{| with argument of type %2| with arguments of types %2 and %3}1"
3935  "%select{| or 'const char *'}4"
3936  "%select{|, and no matching literal operator template}5">;
3937
3938// C++ Template Declarations
3939def err_template_param_shadow : Error<
3940  "declaration of %0 shadows template parameter">;
3941def note_template_param_here : Note<"template parameter is declared here">;
3942def warn_template_export_unsupported : Warning<
3943  "exported templates are unsupported">;
3944def err_template_outside_namespace_or_class_scope : Error<
3945  "templates can only be declared in namespace or class scope">;
3946def err_template_inside_local_class : Error<
3947  "templates cannot be declared inside of a local class">;
3948def err_template_linkage : Error<"templates must have C++ linkage">;
3949def err_template_typedef : Error<"a typedef cannot be a template">;
3950def err_template_unnamed_class : Error<
3951  "cannot declare a class template with no name">;
3952def err_template_param_list_different_arity : Error<
3953  "%select{too few|too many}0 template parameters in template "
3954  "%select{|template parameter }1redeclaration">;
3955def note_template_param_list_different_arity : Note<
3956  "%select{too few|too many}0 template parameters in template template "
3957  "argument">;
3958def note_template_prev_declaration : Note<
3959  "previous template %select{declaration|template parameter}0 is here">;
3960def err_template_param_different_kind : Error<
3961  "template parameter has a different kind in template "
3962  "%select{|template parameter }0redeclaration">;
3963def note_template_param_different_kind : Note<
3964  "template parameter has a different kind in template argument">;
3965
3966def err_invalid_decl_specifier_in_nontype_parm : Error<
3967  "invalid declaration specifier in template non-type parameter">;
3968
3969def err_template_nontype_parm_different_type : Error<
3970  "template non-type parameter has a different type %0 in template "
3971  "%select{|template parameter }1redeclaration">;
3972
3973def note_template_nontype_parm_different_type : Note<
3974  "template non-type parameter has a different type %0 in template argument">;
3975def note_template_nontype_parm_prev_declaration : Note<
3976  "previous non-type template parameter with type %0 is here">;
3977def err_template_nontype_parm_bad_type : Error<
3978  "a non-type template parameter cannot have type %0">;
3979def warn_cxx14_compat_template_nontype_parm_auto_type : Warning<
3980  "non-type template parameters declared with %0 are incompatible with C++ "
3981  "standards before C++17">,
3982  DefaultIgnore, InGroup<CXXPre17Compat>;
3983def err_template_param_default_arg_redefinition : Error<
3984  "template parameter redefines default argument">;
3985def note_template_param_prev_default_arg : Note<
3986  "previous default template argument defined here">;
3987def err_template_param_default_arg_missing : Error<
3988  "template parameter missing a default argument">;
3989def ext_template_parameter_default_in_function_template : ExtWarn<
3990  "default template arguments for a function template are a C++11 extension">,
3991  InGroup<CXX11>;
3992def warn_cxx98_compat_template_parameter_default_in_function_template : Warning<
3993  "default template arguments for a function template are incompatible with C++98">,
3994  InGroup<CXX98Compat>, DefaultIgnore;
3995def err_template_parameter_default_template_member : Error<
3996  "cannot add a default template argument to the definition of a member of a "
3997  "class template">;
3998def err_template_parameter_default_friend_template : Error<
3999  "default template argument not permitted on a friend template">;
4000def err_template_template_parm_no_parms : Error<
4001  "template template parameter must have its own template parameters">;
4002
4003def ext_variable_template : ExtWarn<"variable templates are a C++14 extension">,
4004  InGroup<CXX14>;
4005def warn_cxx11_compat_variable_template : Warning<
4006  "variable templates are incompatible with C++ standards before C++14">,
4007  InGroup<CXXPre14Compat>, DefaultIgnore;
4008def err_template_variable_noparams : Error<
4009  "extraneous 'template<>' in declaration of variable %0">;
4010def err_template_member : Error<"member %0 declared as a template">;
4011def err_template_member_noparams : Error<
4012  "extraneous 'template<>' in declaration of member %0">;
4013def err_template_tag_noparams : Error<
4014  "extraneous 'template<>' in declaration of %0 %1">;
4015
4016def warn_cxx17_compat_adl_only_template_id : Warning<
4017  "use of function template name with no prior function template "
4018  "declaration in function call with explicit template arguments "
4019  "is incompatible with C++ standards before C++2a">,
4020  InGroup<CXXPre2aCompat>, DefaultIgnore;
4021def ext_adl_only_template_id : ExtWarn<
4022  "use of function template name with no prior declaration in function call "
4023  "with explicit template arguments is a C++2a extension">, InGroup<CXX2a>;
4024
4025// C++ Template Argument Lists
4026def err_template_missing_args : Error<
4027  "use of "
4028  "%select{class template|function template|variable template|alias template|"
4029  "template template parameter|concept|template}0 %1 requires template "
4030  "arguments">;
4031def err_template_arg_list_different_arity : Error<
4032  "%select{too few|too many}0 template arguments for "
4033  "%select{class template|function template|variable template|alias template|"
4034  "template template parameter|concept|template}1 %2">;
4035def note_template_decl_here : Note<"template is declared here">;
4036def err_template_arg_must_be_type : Error<
4037  "template argument for template type parameter must be a type">;
4038def err_template_arg_must_be_type_suggest : Error<
4039  "template argument for template type parameter must be a type; "
4040  "did you forget 'typename'?">;
4041def ext_ms_template_type_arg_missing_typename : ExtWarn<
4042  "template argument for template type parameter must be a type; "
4043  "omitted 'typename' is a Microsoft extension">,
4044  InGroup<MicrosoftTemplate>;
4045def err_template_arg_must_be_expr : Error<
4046  "template argument for non-type template parameter must be an expression">;
4047def err_template_arg_nontype_ambig : Error<
4048  "template argument for non-type template parameter is treated as function type %0">;
4049def err_template_arg_must_be_template : Error<
4050  "template argument for template template parameter must be a class template%select{| or type alias template}0">;
4051def ext_template_arg_local_type : ExtWarn<
4052  "template argument uses local type %0">, InGroup<LocalTypeTemplateArgs>;
4053def ext_template_arg_unnamed_type : ExtWarn<
4054  "template argument uses unnamed type">, InGroup<UnnamedTypeTemplateArgs>;
4055def warn_cxx98_compat_template_arg_local_type : Warning<
4056  "local type %0 as template argument is incompatible with C++98">,
4057  InGroup<CXX98CompatLocalTypeTemplateArgs>, DefaultIgnore;
4058def warn_cxx98_compat_template_arg_unnamed_type : Warning<
4059  "unnamed type as template argument is incompatible with C++98">,
4060  InGroup<CXX98CompatUnnamedTypeTemplateArgs>, DefaultIgnore;
4061def note_template_unnamed_type_here : Note<
4062  "unnamed type used in template argument was declared here">;
4063def err_template_arg_overload_type : Error<
4064  "template argument is the type of an unresolved overloaded function">;
4065def err_template_arg_not_valid_template : Error<
4066  "template argument does not refer to a class or alias template, or template "
4067  "template parameter">;
4068def note_template_arg_refers_here_func : Note<
4069  "template argument refers to function template %0, here">;
4070def err_template_arg_template_params_mismatch : Error<
4071  "template template argument has different template parameters than its "
4072  "corresponding template template parameter">;
4073def err_template_arg_not_integral_or_enumeral : Error<
4074  "non-type template argument of type %0 must have an integral or enumeration"
4075  " type">;
4076def err_template_arg_not_ice : Error<
4077  "non-type template argument of type %0 is not an integral constant "
4078  "expression">;
4079def err_template_arg_not_address_constant : Error<
4080  "non-type template argument of type %0 is not a constant expression">;
4081def warn_cxx98_compat_template_arg_null : Warning<
4082  "use of null pointer as non-type template argument is incompatible with "
4083  "C++98">, InGroup<CXX98Compat>, DefaultIgnore;
4084def err_template_arg_untyped_null_constant : Error<
4085  "null non-type template argument must be cast to template parameter type %0">;
4086def err_template_arg_wrongtype_null_constant : Error<
4087  "null non-type template argument of type %0 does not match template parameter "
4088  "of type %1">;
4089def err_non_type_template_parm_type_deduction_failure : Error<
4090  "non-type template parameter %0 with type %1 has incompatible initializer of type %2">;
4091def err_deduced_non_type_template_arg_type_mismatch : Error<
4092  "deduced non-type template argument does not have the same type as the "
4093  "corresponding template parameter%diff{ ($ vs $)|}0,1">;
4094def err_non_type_template_arg_subobject : Error<
4095  "non-type template argument refers to subobject '%0'">;
4096def err_non_type_template_arg_addr_label_diff : Error<
4097  "template argument / label address difference / what did you expect?">;
4098def err_template_arg_not_convertible : Error<
4099  "non-type template argument of type %0 cannot be converted to a value "
4100  "of type %1">;
4101def warn_template_arg_negative : Warning<
4102  "non-type template argument with value '%0' converted to '%1' for unsigned "
4103  "template parameter of type %2">, InGroup<Conversion>, DefaultIgnore;
4104def warn_template_arg_too_large : Warning<
4105  "non-type template argument value '%0' truncated to '%1' for "
4106  "template parameter of type %2">, InGroup<Conversion>, DefaultIgnore;
4107def err_template_arg_no_ref_bind : Error<
4108  "non-type template parameter of reference type "
4109  "%diff{$ cannot bind to template argument of type $"
4110  "|cannot bind to template of incompatible argument type}0,1">;
4111def err_template_arg_ref_bind_ignores_quals : Error<
4112  "reference binding of non-type template parameter "
4113  "%diff{of type $ to template argument of type $|to template argument}0,1 "
4114  "ignores qualifiers">;
4115def err_template_arg_not_decl_ref : Error<
4116  "non-type template argument does not refer to any declaration">;
4117def err_template_arg_not_address_of : Error<
4118  "non-type template argument for template parameter of pointer type %0 must "
4119  "have its address taken">;
4120def err_template_arg_address_of_non_pointer : Error<
4121  "address taken in non-type template argument for template parameter of "
4122  "reference type %0">;
4123def err_template_arg_reference_var : Error<
4124  "non-type template argument of reference type %0 is not an object">;
4125def err_template_arg_field : Error<
4126  "non-type template argument refers to non-static data member %0">;
4127def err_template_arg_method : Error<
4128  "non-type template argument refers to non-static member function %0">;
4129def err_template_arg_object_no_linkage : Error<
4130  "non-type template argument refers to %select{function|object}0 %1 that "
4131  "does not have linkage">;
4132def warn_cxx98_compat_template_arg_object_internal : Warning<
4133  "non-type template argument referring to %select{function|object}0 %1 with "
4134  "internal linkage is incompatible with C++98">,
4135  InGroup<CXX98Compat>, DefaultIgnore;
4136def ext_template_arg_object_internal : ExtWarn<
4137  "non-type template argument referring to %select{function|object}0 %1 with "
4138  "internal linkage is a C++11 extension">, InGroup<CXX11>;
4139def err_template_arg_thread_local : Error<
4140  "non-type template argument refers to thread-local object">;
4141def note_template_arg_internal_object : Note<
4142  "non-type template argument refers to %select{function|object}0 here">;
4143def note_template_arg_refers_here : Note<
4144  "non-type template argument refers here">;
4145def err_template_arg_not_object_or_func : Error<
4146  "non-type template argument does not refer to an object or function">;
4147def err_template_arg_not_pointer_to_member_form : Error<
4148  "non-type template argument is not a pointer to member constant">;
4149def err_template_arg_member_ptr_base_derived_not_supported : Error<
4150  "sorry, non-type template argument of pointer-to-member type %1 that refers "
4151  "to member %q0 of a different class is not supported yet">;
4152def ext_template_arg_extra_parens : ExtWarn<
4153  "address non-type template argument cannot be surrounded by parentheses">;
4154def warn_cxx98_compat_template_arg_extra_parens : Warning<
4155  "redundant parentheses surrounding address non-type template argument are "
4156  "incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
4157def err_pointer_to_member_type : Error<
4158  "invalid use of pointer to member type after %select{.*|->*}0">;
4159def err_pointer_to_member_call_drops_quals : Error<
4160  "call to pointer to member function of type %0 drops '%1' qualifier%s2">;
4161def err_pointer_to_member_oper_value_classify: Error<
4162  "pointer-to-member function type %0 can only be called on an "
4163  "%select{rvalue|lvalue}1">;
4164def ext_pointer_to_const_ref_member_on_rvalue : Extension<
4165  "invoking a pointer to a 'const &' member function on an rvalue is a C++2a extension">,
4166  InGroup<CXX2a>, SFINAEFailure;
4167def warn_cxx17_compat_pointer_to_const_ref_member_on_rvalue : Warning<
4168  "invoking a pointer to a 'const &' member function on an rvalue is "
4169  "incompatible with C++ standards before C++2a">,
4170  InGroup<CXXPre2aCompatPedantic>, DefaultIgnore;
4171def ext_ms_deref_template_argument: ExtWarn<
4172  "non-type template argument containing a dereference operation is a "
4173  "Microsoft extension">, InGroup<MicrosoftTemplate>;
4174def ext_ms_delayed_template_argument: ExtWarn<
4175  "using the undeclared type %0 as a default template argument is a "
4176  "Microsoft extension">, InGroup<MicrosoftTemplate>;
4177def err_template_arg_deduced_incomplete_pack : Error<
4178  "deduced incomplete pack %0 for template parameter %1">;
4179
4180// C++ template specialization
4181def err_template_spec_unknown_kind : Error<
4182  "can only provide an explicit specialization for a class template, function "
4183  "template, variable template, or a member function, static data member, "
4184  "%select{or member class|member class, or member enumeration}0 of a "
4185  "class template">;
4186def note_specialized_entity : Note<
4187  "explicitly specialized declaration is here">;
4188def note_explicit_specialization_declared_here : Note<
4189  "explicit specialization declared here">;
4190def err_template_spec_decl_function_scope : Error<
4191  "explicit specialization of %0 in function scope">;
4192def err_template_spec_decl_friend : Error<
4193  "cannot declare an explicit specialization in a friend">;
4194def err_template_spec_redecl_out_of_scope : Error<
4195  "%select{class template|class template partial|variable template|"
4196  "variable template partial|function template|member "
4197  "function|static data member|member class|member enumeration}0 "
4198  "specialization of %1 not in %select{a namespace enclosing %2|"
4199  "class %2 or an enclosing namespace}3">;
4200def ext_ms_template_spec_redecl_out_of_scope: ExtWarn<
4201  "%select{class template|class template partial|variable template|"
4202  "variable template partial|function template|member "
4203  "function|static data member|member class|member enumeration}0 "
4204  "specialization of %1 not in %select{a namespace enclosing %2|"
4205  "class %2 or an enclosing namespace}3 "
4206  "is a Microsoft extension">, InGroup<MicrosoftTemplate>;
4207def err_template_spec_redecl_global_scope : Error<
4208  "%select{class template|class template partial|variable template|"
4209  "variable template partial|function template|member "
4210  "function|static data member|member class|member enumeration}0 "
4211  "specialization of %1 must occur at global scope">;
4212def err_spec_member_not_instantiated : Error<
4213  "specialization of member %q0 does not specialize an instantiated member">;
4214def note_specialized_decl : Note<"attempt to specialize declaration here">;
4215def err_specialization_after_instantiation : Error<
4216  "explicit specialization of %0 after instantiation">;
4217def note_instantiation_required_here : Note<
4218  "%select{implicit|explicit}0 instantiation first required here">;
4219def err_template_spec_friend : Error<
4220  "template specialization declaration cannot be a friend">;
4221def err_template_spec_default_arg : Error<
4222  "default argument not permitted on an explicit "
4223  "%select{instantiation|specialization}0 of function %1">;
4224def err_not_class_template_specialization : Error<
4225  "cannot specialize a %select{dependent template|template template "
4226  "parameter}0">;
4227def ext_explicit_specialization_storage_class : ExtWarn<
4228  "explicit specialization cannot have a storage class">;
4229def err_explicit_specialization_inconsistent_storage_class : Error<
4230  "explicit specialization has extraneous, inconsistent storage class "
4231  "'%select{none|extern|static|__private_extern__|auto|register}0'">;
4232def err_dependent_function_template_spec_no_match : Error<
4233  "no candidate function template was found for dependent"
4234  " friend function template specialization">;
4235def note_dependent_function_template_spec_discard_reason : Note<
4236  "candidate ignored: %select{not a function template"
4237  "|not a member of the enclosing namespace;"
4238  " did you mean to explicitly qualify the specialization?}0">;
4239
4240// C++ class template specializations and out-of-line definitions
4241def err_template_spec_needs_header : Error<
4242  "template specialization requires 'template<>'">;
4243def err_template_spec_needs_template_parameters : Error<
4244  "template specialization or definition requires a template parameter list "
4245  "corresponding to the nested type %0">;
4246def err_template_param_list_matches_nontemplate : Error<
4247  "template parameter list matching the non-templated nested type %0 should "
4248  "be empty ('template<>')">;
4249def err_alias_template_extra_headers : Error<
4250  "extraneous template parameter list in alias template declaration">;
4251def err_template_spec_extra_headers : Error<
4252  "extraneous template parameter list in template specialization or "
4253  "out-of-line template definition">;
4254def warn_template_spec_extra_headers : Warning<
4255  "extraneous template parameter list in template specialization">;
4256def note_explicit_template_spec_does_not_need_header : Note<
4257  "'template<>' header not required for explicitly-specialized class %0 "
4258  "declared here">;
4259def err_template_qualified_declarator_no_match : Error<
4260  "nested name specifier '%0' for declaration does not refer into a class, "
4261  "class template or class template partial specialization">;
4262def err_specialize_member_of_template : Error<
4263  "cannot specialize %select{|(with 'template<>') }0a member of an "
4264  "unspecialized template">;
4265
4266// C++ Class Template Partial Specialization
4267def err_default_arg_in_partial_spec : Error<
4268    "default template argument in a class template partial specialization">;
4269def err_dependent_non_type_arg_in_partial_spec : Error<
4270    "type of specialized non-type template argument depends on a template "
4271    "parameter of the partial specialization">;
4272def note_dependent_non_type_default_arg_in_partial_spec : Note<
4273    "template parameter is used in default argument declared here">;
4274def err_dependent_typed_non_type_arg_in_partial_spec : Error<
4275    "non-type template argument specializes a template parameter with "
4276    "dependent type %0">;
4277def err_partial_spec_args_match_primary_template : Error<
4278    "%select{class|variable}0 template partial specialization does not "
4279    "specialize any template argument; to %select{declare|define}1 the "
4280    "primary template, remove the template argument list">;
4281def ext_partial_spec_not_more_specialized_than_primary : ExtWarn<
4282    "%select{class|variable}0 template partial specialization is not "
4283    "more specialized than the primary template">, DefaultError,
4284    InGroup<DiagGroup<"invalid-partial-specialization">>;
4285def note_partial_spec_not_more_specialized_than_primary : Note<"%0">;
4286def ext_partial_specs_not_deducible : ExtWarn<
4287    "%select{class|variable}0 template partial specialization contains "
4288    "%select{a template parameter|template parameters}1 that cannot be "
4289    "deduced; this partial specialization will never be used">,
4290    DefaultError, InGroup<DiagGroup<"unusable-partial-specialization">>;
4291def note_non_deducible_parameter : Note<
4292    "non-deducible template parameter %0">;
4293def err_partial_spec_ordering_ambiguous : Error<
4294    "ambiguous partial specializations of %0">;
4295def note_partial_spec_match : Note<"partial specialization matches %0">;
4296def err_partial_spec_redeclared : Error<
4297  "class template partial specialization %0 cannot be redeclared">;
4298def note_partial_specialization_declared_here : Note<
4299  "explicit specialization declared here">;
4300def note_prev_partial_spec_here : Note<
4301  "previous declaration of class template partial specialization %0 is here">;
4302def err_partial_spec_fully_specialized : Error<
4303  "partial specialization of %0 does not use any of its template parameters">;
4304
4305// C++ Variable Template Partial Specialization
4306def err_var_partial_spec_redeclared : Error<
4307  "variable template partial specialization %0 cannot be redefined">;
4308def note_var_prev_partial_spec_here : Note<
4309  "previous declaration of variable template partial specialization is here">;
4310def err_var_spec_no_template : Error<
4311  "no variable template matches%select{| partial}0 specialization">;
4312def err_var_spec_no_template_but_method : Error<
4313  "no variable template matches specialization; "
4314  "did you mean to use %0 as function template instead?">;
4315
4316// C++ Function template specializations
4317def err_function_template_spec_no_match : Error<
4318    "no function template matches function template specialization %0">;
4319def err_function_template_spec_ambiguous : Error<
4320    "function template specialization %0 ambiguously refers to more than one "
4321    "function template; explicitly specify%select{| additional}1 template "
4322    "arguments to identify a particular function template">;
4323def note_function_template_spec_matched : Note<
4324    "function template %q0 matches specialization %1">;
4325def err_function_template_partial_spec : Error<
4326    "function template partial specialization is not allowed">;
4327
4328// C++ Template Instantiation
4329def err_template_recursion_depth_exceeded : Error<
4330  "recursive template instantiation exceeded maximum depth of %0">,
4331  DefaultFatal, NoSFINAE;
4332def note_template_recursion_depth : Note<
4333  "use -ftemplate-depth=N to increase recursive template instantiation depth">;
4334
4335def err_template_instantiate_within_definition : Error<
4336  "%select{implicit|explicit}0 instantiation of template %1 within its"
4337  " own definition">;
4338def err_template_instantiate_undefined : Error<
4339  "%select{implicit|explicit}0 instantiation of undefined template %1">;
4340def err_implicit_instantiate_member_undefined : Error<
4341  "implicit instantiation of undefined member %0">;
4342def note_template_class_instantiation_was_here : Note<
4343  "class template %0 was instantiated here">;
4344def note_template_class_explicit_specialization_was_here : Note<
4345  "class template %0 was explicitly specialized here">;
4346def note_template_class_instantiation_here : Note<
4347  "in instantiation of template class %q0 requested here">;
4348def note_template_member_class_here : Note<
4349  "in instantiation of member class %q0 requested here">;
4350def note_template_member_function_here : Note<
4351  "in instantiation of member function %q0 requested here">;
4352def note_function_template_spec_here : Note<
4353  "in instantiation of function template specialization %q0 requested here">;
4354def note_template_static_data_member_def_here : Note<
4355  "in instantiation of static data member %q0 requested here">;
4356def note_template_variable_def_here : Note<
4357  "in instantiation of variable template specialization %q0 requested here">;
4358def note_template_enum_def_here : Note<
4359  "in instantiation of enumeration %q0 requested here">;
4360def note_template_nsdmi_here : Note<
4361  "in instantiation of default member initializer %q0 requested here">;
4362def note_template_type_alias_instantiation_here : Note<
4363  "in instantiation of template type alias %0 requested here">;
4364def note_template_exception_spec_instantiation_here : Note<
4365  "in instantiation of exception specification for %0 requested here">;
4366def warn_var_template_missing : Warning<"instantiation of variable %q0 "
4367  "required here, but no definition is available">,
4368  InGroup<UndefinedVarTemplate>;
4369def warn_func_template_missing : Warning<"instantiation of function %q0 "
4370  "required here, but no definition is available">,
4371  InGroup<UndefinedFuncTemplate>, DefaultIgnore;
4372def note_forward_template_decl : Note<
4373  "forward declaration of template entity is here">;
4374def note_inst_declaration_hint : Note<"add an explicit instantiation "
4375  "declaration to suppress this warning if %q0 is explicitly instantiated in "
4376  "another translation unit">;
4377def note_evaluating_exception_spec_here : Note<
4378  "in evaluation of exception specification for %q0 needed here">;
4379
4380def note_default_arg_instantiation_here : Note<
4381  "in instantiation of default argument for '%0' required here">;
4382def note_default_function_arg_instantiation_here : Note<
4383  "in instantiation of default function argument expression "
4384  "for '%0' required here">;
4385def note_explicit_template_arg_substitution_here : Note<
4386  "while substituting explicitly-specified template arguments into function "
4387  "template %0 %1">;
4388def note_function_template_deduction_instantiation_here : Note<
4389  "while substituting deduced template arguments into function template %0 "
4390  "%1">;
4391def note_deduced_template_arg_substitution_here : Note<
4392  "during template argument deduction for %select{class|variable}0 template "
4393  "%select{partial specialization |}1%2 %3">;
4394def note_prior_template_arg_substitution : Note<
4395  "while substituting prior template arguments into %select{non-type|template}0"
4396  " template parameter%1 %2">;
4397def note_template_default_arg_checking : Note<
4398  "while checking a default template argument used here">;
4399def note_instantiation_contexts_suppressed : Note<
4400  "(skipping %0 context%s0 in backtrace; use -ftemplate-backtrace-limit=0 to "
4401  "see all)">;
4402
4403def err_field_instantiates_to_function : Error<
4404  "data member instantiated with function type %0">;
4405def err_variable_instantiates_to_function : Error<
4406  "%select{variable|static data member}0 instantiated with function type %1">;
4407def err_nested_name_spec_non_tag : Error<
4408  "type %0 cannot be used prior to '::' because it has no members">;
4409
4410def err_using_pack_expansion_empty : Error<
4411  "%select{|member}0 using declaration %1 instantiates to an empty pack">;
4412
4413// C++ Explicit Instantiation
4414def err_explicit_instantiation_duplicate : Error<
4415    "duplicate explicit instantiation of %0">;
4416def ext_explicit_instantiation_duplicate : ExtWarn<
4417    "duplicate explicit instantiation of %0 ignored as a Microsoft extension">,
4418    InGroup<MicrosoftTemplate>;
4419def note_previous_explicit_instantiation : Note<
4420    "previous explicit instantiation is here">;
4421def warn_explicit_instantiation_after_specialization : Warning<
4422  "explicit instantiation of %0 that occurs after an explicit "
4423  "specialization has no effect">,
4424  InGroup<DiagGroup<"instantiation-after-specialization">>;
4425def note_previous_template_specialization : Note<
4426    "previous template specialization is here">;
4427def err_explicit_instantiation_nontemplate_type : Error<
4428    "explicit instantiation of non-templated type %0">;
4429def note_nontemplate_decl_here : Note<
4430    "non-templated declaration is here">;
4431def err_explicit_instantiation_in_class : Error<
4432  "explicit instantiation of %0 in class scope">;
4433def err_explicit_instantiation_out_of_scope : Error<
4434  "explicit instantiation of %0 not in a namespace enclosing %1">;
4435def err_explicit_instantiation_must_be_global : Error<
4436  "explicit instantiation of %0 must occur at global scope">;
4437def warn_explicit_instantiation_out_of_scope_0x : Warning<
4438  "explicit instantiation of %0 not in a namespace enclosing %1">,
4439  InGroup<CXX11Compat>, DefaultIgnore;
4440def warn_explicit_instantiation_must_be_global_0x : Warning<
4441  "explicit instantiation of %0 must occur at global scope">,
4442  InGroup<CXX11Compat>, DefaultIgnore;
4443
4444def err_explicit_instantiation_requires_name : Error<
4445  "explicit instantiation declaration requires a name">;
4446def err_explicit_instantiation_of_typedef : Error<
4447  "explicit instantiation of typedef %0">;
4448def err_explicit_instantiation_storage_class : Error<
4449  "explicit instantiation cannot have a storage class">;
4450def err_explicit_instantiation_internal_linkage : Error<
4451  "explicit instantiation declaration of %0 with internal linkage">;
4452def err_explicit_instantiation_not_known : Error<
4453  "explicit instantiation of %0 does not refer to a function template, "
4454  "variable template, member function, member class, or static data member">;
4455def note_explicit_instantiation_here : Note<
4456  "explicit instantiation refers here">;
4457def err_explicit_instantiation_data_member_not_instantiated : Error<
4458  "explicit instantiation refers to static data member %q0 that is not an "
4459  "instantiation">;
4460def err_explicit_instantiation_member_function_not_instantiated : Error<
4461  "explicit instantiation refers to member function %q0 that is not an "
4462  "instantiation">;
4463def err_explicit_instantiation_ambiguous : Error<
4464  "partial ordering for explicit instantiation of %0 is ambiguous">;
4465def note_explicit_instantiation_candidate : Note<
4466  "explicit instantiation candidate function %q0 template here %1">;
4467def err_explicit_instantiation_inline : Error<
4468  "explicit instantiation cannot be 'inline'">;
4469def warn_explicit_instantiation_inline_0x : Warning<
4470  "explicit instantiation cannot be 'inline'">, InGroup<CXX11Compat>,
4471  DefaultIgnore;
4472def err_explicit_instantiation_constexpr : Error<
4473  "explicit instantiation cannot be 'constexpr'">;
4474def ext_explicit_instantiation_without_qualified_id : Extension<
4475  "qualifier in explicit instantiation of %q0 requires a template-id "
4476  "(a typedef is not permitted)">;
4477def err_explicit_instantiation_without_template_id : Error<
4478  "explicit instantiation of %q0 must specify a template argument list">;
4479def err_explicit_instantiation_unqualified_wrong_namespace : Error<
4480  "explicit instantiation of %q0 must occur in namespace %1">;
4481def warn_explicit_instantiation_unqualified_wrong_namespace_0x : Warning<
4482  "explicit instantiation of %q0 must occur in namespace %1">,
4483  InGroup<CXX11Compat>, DefaultIgnore;
4484def err_explicit_instantiation_undefined_member : Error<
4485  "explicit instantiation of undefined %select{member class|member function|"
4486  "static data member}0 %1 of class template %2">;
4487def err_explicit_instantiation_undefined_func_template : Error<
4488  "explicit instantiation of undefined function template %0">;
4489def err_explicit_instantiation_undefined_var_template : Error<
4490  "explicit instantiation of undefined variable template %q0">;
4491def err_explicit_instantiation_declaration_after_definition : Error<
4492  "explicit instantiation declaration (with 'extern') follows explicit "
4493  "instantiation definition (without 'extern')">;
4494def note_explicit_instantiation_definition_here : Note<
4495  "explicit instantiation definition is here">;
4496def err_invalid_var_template_spec_type : Error<"type %2 "
4497  "of %select{explicit instantiation|explicit specialization|"
4498  "partial specialization|redeclaration}0 of %1 does not match"
4499  " expected type %3">;
4500def err_mismatched_exception_spec_explicit_instantiation : Error<
4501  "exception specification in explicit instantiation does not match "
4502  "instantiated one">;
4503def ext_mismatched_exception_spec_explicit_instantiation : ExtWarn<
4504  err_mismatched_exception_spec_explicit_instantiation.Text>,
4505  InGroup<MicrosoftExceptionSpec>;
4506
4507// C++ typename-specifiers
4508def err_typename_nested_not_found : Error<"no type named %0 in %1">;
4509def err_typename_nested_not_found_enable_if : Error<
4510  "no type named 'type' in %0; 'enable_if' cannot be used to disable "
4511  "this declaration">;
4512def err_typename_nested_not_found_requirement : Error<
4513  "failed requirement '%0'; 'enable_if' cannot be used to disable this "
4514  "declaration">;
4515def err_typename_nested_not_type : Error<
4516    "typename specifier refers to non-type member %0 in %1">;
4517def note_typename_refers_here : Note<
4518    "referenced member %0 is declared here">;
4519def err_typename_missing : Error<
4520  "missing 'typename' prior to dependent type name '%0%1'">;
4521def err_typename_missing_template : Error<
4522  "missing 'typename' prior to dependent type template name '%0%1'">;
4523def ext_typename_missing : ExtWarn<
4524  "missing 'typename' prior to dependent type name '%0%1'">,
4525  InGroup<DiagGroup<"typename-missing">>;
4526def ext_typename_outside_of_template : ExtWarn<
4527  "'typename' occurs outside of a template">, InGroup<CXX11>;
4528def warn_cxx98_compat_typename_outside_of_template : Warning<
4529  "use of 'typename' outside of a template is incompatible with C++98">,
4530  InGroup<CXX98Compat>, DefaultIgnore;
4531def err_typename_refers_to_using_value_decl : Error<
4532  "typename specifier refers to a dependent using declaration for a value "
4533  "%0 in %1">;
4534def note_using_value_decl_missing_typename : Note<
4535  "add 'typename' to treat this using declaration as a type">;
4536
4537def err_template_kw_refers_to_non_template : Error<
4538  "%0 following the 'template' keyword does not refer to a template">;
4539def note_template_kw_refers_to_non_template : Note<
4540  "declared as a non-template here">;
4541def err_template_kw_refers_to_class_template : Error<
4542  "'%0%1' instantiated to a class template, not a function template">;
4543def note_referenced_class_template : Note<
4544  "class template declared here">;
4545def err_template_kw_missing : Error<
4546  "missing 'template' keyword prior to dependent template name '%0%1'">;
4547def ext_template_outside_of_template : ExtWarn<
4548  "'template' keyword outside of a template">, InGroup<CXX11>;
4549def warn_cxx98_compat_template_outside_of_template : Warning<
4550  "use of 'template' keyword outside of a template is incompatible with C++98">,
4551  InGroup<CXX98Compat>, DefaultIgnore;
4552
4553def err_non_type_template_in_nested_name_specifier : Error<
4554  "qualified name refers into a specialization of %select{function|variable}0 "
4555  "template %1">;
4556def err_template_id_not_a_type : Error<
4557  "template name refers to non-type template %0">;
4558def note_template_declared_here : Note<
4559  "%select{function template|class template|variable template"
4560  "|type alias template|template template parameter}0 "
4561  "%1 declared here">;
4562def err_alias_template_expansion_into_fixed_list : Error<
4563  "pack expansion used as argument for non-pack parameter of alias template">;
4564def note_parameter_type : Note<
4565  "parameter of type %0 is declared here">;
4566
4567// C++11 Variadic Templates
4568def err_template_param_pack_default_arg : Error<
4569  "template parameter pack cannot have a default argument">;
4570def err_template_param_pack_must_be_last_template_parameter : Error<
4571  "template parameter pack must be the last template parameter">;
4572
4573def err_template_parameter_pack_non_pack : Error<
4574  "%select{template type|non-type template|template template}0 parameter"
4575  "%select{| pack}1 conflicts with previous %select{template type|"
4576  "non-type template|template template}0 parameter%select{ pack|}1">;
4577def note_template_parameter_pack_non_pack : Note<
4578  "%select{template type|non-type template|template template}0 parameter"
4579  "%select{| pack}1 does not match %select{template type|non-type template"
4580  "|template template}0 parameter%select{ pack|}1 in template argument">;
4581def note_template_parameter_pack_here : Note<
4582  "previous %select{template type|non-type template|template template}0 "
4583  "parameter%select{| pack}1 declared here">;
4584
4585def err_unexpanded_parameter_pack : Error<
4586  "%select{expression|base type|declaration type|data member type|bit-field "
4587  "size|static assertion|fixed underlying type|enumerator value|"
4588  "using declaration|friend declaration|qualifier|initializer|default argument|"
4589  "non-type template parameter type|exception type|partial specialization|"
4590  "__if_exists name|__if_not_exists name|lambda|block}0 contains"
4591  "%plural{0: an|:}1 unexpanded parameter pack"
4592  "%plural{0:|1: %2|2:s %2 and %3|:s %2, %3, ...}1">;
4593
4594def err_pack_expansion_without_parameter_packs : Error<
4595  "pack expansion does not contain any unexpanded parameter packs">;
4596def err_pack_expansion_length_conflict : Error<
4597  "pack expansion contains parameter packs %0 and %1 that have different "
4598  "lengths (%2 vs. %3)">;
4599def err_pack_expansion_length_conflict_multilevel : Error<
4600  "pack expansion contains parameter pack %0 that has a different "
4601  "length (%1 vs. %2) from outer parameter packs">;
4602def err_pack_expansion_length_conflict_partial : Error<
4603  "pack expansion contains parameter pack %0 that has a different "
4604  "length (at least %1 vs. %2) from outer parameter packs">;
4605def err_pack_expansion_member_init : Error<
4606  "pack expansion for initialization of member %0">;
4607
4608def err_function_parameter_pack_without_parameter_packs : Error<
4609  "type %0 of function parameter pack does not contain any unexpanded "
4610  "parameter packs">;
4611def err_ellipsis_in_declarator_not_parameter : Error<
4612  "only function and template parameters can be parameter packs">;
4613
4614def err_sizeof_pack_no_pack_name : Error<
4615  "%0 does not refer to the name of a parameter pack">;
4616
4617def err_fold_expression_packs_both_sides : Error<
4618  "binary fold expression has unexpanded parameter packs in both operands">;
4619def err_fold_expression_empty : Error<
4620  "unary fold expression has empty expansion for operator '%0' "
4621  "with no fallback value">;
4622def err_fold_expression_bad_operand : Error<
4623  "expression not permitted as operand of fold expression">;
4624
4625def err_unexpected_typedef : Error<
4626  "unexpected type name %0: expected expression">;
4627def err_unexpected_namespace : Error<
4628  "unexpected namespace name %0: expected expression">;
4629def err_undeclared_var_use : Error<"use of undeclared identifier %0">;
4630def ext_undeclared_unqual_id_with_dependent_base : ExtWarn<
4631  "use of undeclared identifier %0; "
4632  "unqualified lookup into dependent bases of class template %1 is a Microsoft extension">,
4633  InGroup<MicrosoftTemplate>;
4634def ext_found_via_dependent_bases_lookup : ExtWarn<"use of identifier %0 "
4635  "found via unqualified lookup into dependent bases of class templates is a "
4636  "Microsoft extension">, InGroup<MicrosoftTemplate>;
4637def note_dependent_var_use : Note<"must qualify identifier to find this "
4638    "declaration in dependent base class">;
4639def err_not_found_by_two_phase_lookup : Error<"call to function %0 that is neither "
4640    "visible in the template definition nor found by argument-dependent lookup">;
4641def note_not_found_by_two_phase_lookup : Note<"%0 should be declared prior to the "
4642    "call site%select{| or in %2| or in an associated namespace of one of its arguments}1">;
4643def err_undeclared_use : Error<"use of undeclared %0">;
4644def warn_deprecated : Warning<"%0 is deprecated">,
4645    InGroup<DeprecatedDeclarations>;
4646def note_from_diagnose_if : Note<"from 'diagnose_if' attribute on %0:">;
4647def warn_property_method_deprecated :
4648    Warning<"property access is using %0 method which is deprecated">,
4649    InGroup<DeprecatedDeclarations>;
4650def warn_deprecated_message : Warning<"%0 is deprecated: %1">,
4651    InGroup<DeprecatedDeclarations>;
4652def warn_deprecated_anonymous_namespace : Warning<
4653  "'deprecated' attribute on anonymous namespace ignored">,
4654  InGroup<IgnoredAttributes>;
4655def warn_deprecated_fwdclass_message : Warning<
4656    "%0 may be deprecated because the receiver type is unknown">,
4657    InGroup<DeprecatedDeclarations>;
4658def warn_deprecated_def : Warning<
4659  "implementing deprecated %select{method|class|category}0">,
4660  InGroup<DeprecatedImplementations>, DefaultIgnore;
4661def warn_unavailable_def : Warning<
4662  "implementing unavailable method">,
4663  InGroup<DeprecatedImplementations>, DefaultIgnore;
4664def err_unavailable : Error<"%0 is unavailable">;
4665def err_property_method_unavailable :
4666    Error<"property access is using %0 method which is unavailable">;
4667def err_unavailable_message : Error<"%0 is unavailable: %1">;
4668def warn_unavailable_fwdclass_message : Warning<
4669    "%0 may be unavailable because the receiver type is unknown">,
4670    InGroup<UnavailableDeclarations>;
4671def note_availability_specified_here : Note<
4672  "%0 has been explicitly marked "
4673  "%select{unavailable|deleted|deprecated}1 here">;
4674def note_partial_availability_specified_here : Note<
4675  "%0 has been marked as being introduced in %1 %2 here, "
4676  "but the deployment target is %1 %3">;
4677def note_implicitly_deleted : Note<
4678  "explicitly defaulted function was implicitly deleted here">;
4679def warn_not_enough_argument : Warning<
4680  "not enough variable arguments in %0 declaration to fit a sentinel">,
4681  InGroup<Sentinel>;
4682def warn_missing_sentinel : Warning <
4683  "missing sentinel in %select{function call|method dispatch|block call}0">,
4684  InGroup<Sentinel>;
4685def note_sentinel_here : Note<
4686  "%select{function|method|block}0 has been explicitly marked sentinel here">;
4687def warn_missing_prototype : Warning<
4688  "no previous prototype for function %0">,
4689  InGroup<DiagGroup<"missing-prototypes">>, DefaultIgnore;
4690def note_declaration_not_a_prototype : Note<
4691  "this declaration is not a prototype; add %select{'void'|parameter declarations}0 "
4692  "to make it %select{a prototype for a zero-parameter function|one}0">;
4693def warn_strict_prototypes : Warning<
4694  "this %select{function declaration is not|block declaration is not|"
4695  "old-style function definition is not preceded by}0 a prototype">,
4696  InGroup<DiagGroup<"strict-prototypes">>, DefaultIgnore;
4697def warn_missing_variable_declarations : Warning<
4698  "no previous extern declaration for non-static variable %0">,
4699  InGroup<DiagGroup<"missing-variable-declarations">>, DefaultIgnore;
4700def note_static_for_internal_linkage : Note<
4701  "declare 'static' if the %select{variable|function}0 is not intended to be "
4702  "used outside of this translation unit">;
4703def err_static_data_member_reinitialization :
4704  Error<"static data member %0 already has an initializer">;
4705def err_redefinition : Error<"redefinition of %0">;
4706def err_alias_after_tentative :
4707  Error<"alias definition of %0 after tentative definition">;
4708def err_alias_is_definition :
4709  Error<"definition %0 cannot also be an %select{alias|ifunc}1">;
4710def err_definition_of_implicitly_declared_member : Error<
4711  "definition of implicitly declared %select{default constructor|copy "
4712  "constructor|move constructor|copy assignment operator|move assignment "
4713  "operator|destructor|function}1">;
4714def err_definition_of_explicitly_defaulted_member : Error<
4715  "definition of explicitly defaulted %select{default constructor|copy "
4716  "constructor|move constructor|copy assignment operator|move assignment "
4717  "operator|destructor|function}0">;
4718def err_redefinition_extern_inline : Error<
4719  "redefinition of a 'extern inline' function %0 is not supported in "
4720  "%select{C99 mode|C++}1">;
4721def warn_attr_abi_tag_namespace : Warning<
4722  "'abi_tag' attribute on %select{non-inline|anonymous}0 namespace ignored">,
4723  InGroup<IgnoredAttributes>;
4724def err_abi_tag_on_redeclaration : Error<
4725  "cannot add 'abi_tag' attribute in a redeclaration">;
4726def err_new_abi_tag_on_redeclaration : Error<
4727  "'abi_tag' %0 missing in original declaration">;
4728def note_use_ifdef_guards : Note<
4729  "unguarded header; consider using #ifdef guards or #pragma once">;
4730
4731def note_deleted_dtor_no_operator_delete : Note<
4732  "virtual destructor requires an unambiguous, accessible 'operator delete'">;
4733def note_deleted_special_member_class_subobject : Note<
4734  "%select{default constructor of|copy constructor of|move constructor of|"
4735  "copy assignment operator of|move assignment operator of|destructor of|"
4736  "constructor inherited by}0 "
4737  "%1 is implicitly deleted because "
4738  "%select{base class %3|%select{||||variant }4field %3}2 "
4739  "%select{has "
4740  "%select{no|a deleted|multiple|an inaccessible|a non-trivial}4 "
4741  "%select{%select{default constructor|copy constructor|move constructor|copy "
4742  "assignment operator|move assignment operator|destructor|"
4743  "%select{default|corresponding|default|default|default}4 constructor}0|"
4744  "destructor}5"
4745  "%select{||s||}4"
4746  "|is an ObjC pointer}6">;
4747def note_deleted_default_ctor_uninit_field : Note<
4748  "%select{default constructor of|constructor inherited by}0 "
4749  "%1 is implicitly deleted because field %2 of "
4750  "%select{reference|const-qualified}4 type %3 would not be initialized">;
4751def note_deleted_default_ctor_all_const : Note<
4752  "%select{default constructor of|constructor inherited by}0 "
4753  "%1 is implicitly deleted because all "
4754  "%select{data members|data members of an anonymous union member}2"
4755  " are const-qualified">;
4756def note_deleted_copy_ctor_rvalue_reference : Note<
4757  "copy constructor of %0 is implicitly deleted because field %1 is of "
4758  "rvalue reference type %2">;
4759def note_deleted_copy_user_declared_move : Note<
4760  "copy %select{constructor|assignment operator}0 is implicitly deleted because"
4761  " %1 has a user-declared move %select{constructor|assignment operator}2">;
4762def note_deleted_assign_field : Note<
4763  "%select{copy|move}0 assignment operator of %1 is implicitly deleted "
4764  "because field %2 is of %select{reference|const-qualified}4 type %3">;
4765
4766// These should be errors.
4767def warn_undefined_internal : Warning<
4768  "%select{function|variable}0 %q1 has internal linkage but is not defined">,
4769  InGroup<DiagGroup<"undefined-internal">>;
4770def err_undefined_internal_type : Error<
4771  "%select{function|variable}0 %q1 is used but not defined in this "
4772  "translation unit, and cannot be defined in any other translation unit "
4773  "because its type does not have linkage">;
4774def ext_undefined_internal_type : Extension<
4775  "ISO C++ requires a definition in this translation unit for "
4776  "%select{function|variable}0 %q1 because its type does not have linkage">,
4777  InGroup<DiagGroup<"undefined-internal-type">>;
4778def warn_undefined_inline : Warning<"inline function %q0 is not defined">,
4779  InGroup<DiagGroup<"undefined-inline">>;
4780def err_undefined_inline_var : Error<"inline variable %q0 is not defined">;
4781def note_used_here : Note<"used here">;
4782
4783def err_internal_linkage_redeclaration : Error<
4784  "'internal_linkage' attribute does not appear on the first declaration of %0">;
4785def warn_internal_linkage_local_storage : Warning<
4786  "'internal_linkage' attribute on a non-static local variable is ignored">,
4787  InGroup<IgnoredAttributes>;
4788
4789def ext_internal_in_extern_inline : ExtWarn<
4790  "static %select{function|variable}0 %1 is used in an inline function with "
4791  "external linkage">, InGroup<StaticInInline>;
4792def ext_internal_in_extern_inline_quiet : Extension<
4793  "static %select{function|variable}0 %1 is used in an inline function with "
4794  "external linkage">, InGroup<StaticInInline>;
4795def warn_static_local_in_extern_inline : Warning<
4796  "non-constant static local variable in inline function may be different "
4797  "in different files">, InGroup<StaticLocalInInline>;
4798def note_convert_inline_to_static : Note<
4799  "use 'static' to give inline function %0 internal linkage">;
4800
4801def ext_redefinition_of_typedef : ExtWarn<
4802  "redefinition of typedef %0 is a C11 feature">,
4803  InGroup<DiagGroup<"typedef-redefinition"> >;
4804def err_redefinition_variably_modified_typedef : Error<
4805  "redefinition of %select{typedef|type alias}0 for variably-modified type %1">;
4806
4807def err_inline_decl_follows_def : Error<
4808  "inline declaration of %0 follows non-inline definition">;
4809def err_inline_declaration_block_scope : Error<
4810  "inline declaration of %0 not allowed in block scope">;
4811def err_static_non_static : Error<
4812  "static declaration of %0 follows non-static declaration">;
4813def err_different_language_linkage : Error<
4814  "declaration of %0 has a different language linkage">;
4815def ext_retained_language_linkage : Extension<
4816  "friend function %0 retaining previous language linkage is an extension">,
4817  InGroup<DiagGroup<"retained-language-linkage">>;
4818def err_extern_c_global_conflict : Error<
4819  "declaration of %1 %select{with C language linkage|in global scope}0 "
4820  "conflicts with declaration %select{in global scope|with C language linkage}0">;
4821def note_extern_c_global_conflict : Note<
4822  "declared %select{in global scope|with C language linkage}0 here">;
4823def note_extern_c_begins_here : Note<
4824  "extern \"C\" language linkage specification begins here">;
4825def warn_weak_import : Warning <
4826  "an already-declared variable is made a weak_import declaration %0">;
4827def ext_static_non_static : Extension<
4828  "redeclaring non-static %0 as static is a Microsoft extension">,
4829  InGroup<MicrosoftRedeclareStatic>;
4830def err_non_static_static : Error<
4831  "non-static declaration of %0 follows static declaration">;
4832def err_extern_non_extern : Error<
4833  "extern declaration of %0 follows non-extern declaration">;
4834def err_non_extern_extern : Error<
4835  "non-extern declaration of %0 follows extern declaration">;
4836def err_non_thread_thread : Error<
4837  "non-thread-local declaration of %0 follows thread-local declaration">;
4838def err_thread_non_thread : Error<
4839  "thread-local declaration of %0 follows non-thread-local declaration">;
4840def err_thread_thread_different_kind : Error<
4841  "thread-local declaration of %0 with %select{static|dynamic}1 initialization "
4842  "follows declaration with %select{dynamic|static}1 initialization">;
4843def err_mismatched_owning_module : Error<
4844  "declaration of %0 in %select{the global module|module %2}1 follows "
4845  "declaration in %select{the global module|module %4}3">;
4846def err_redefinition_different_type : Error<
4847  "redefinition of %0 with a different type%diff{: $ vs $|}1,2">;
4848def err_redefinition_different_kind : Error<
4849  "redefinition of %0 as different kind of symbol">;
4850def err_redefinition_different_namespace_alias : Error<
4851  "redefinition of %0 as an alias for a different namespace">;
4852def note_previous_namespace_alias : Note<
4853  "previously defined as an alias for %0">;
4854def warn_forward_class_redefinition : Warning<
4855  "redefinition of forward class %0 of a typedef name of an object type is ignored">,
4856  InGroup<DiagGroup<"objc-forward-class-redefinition">>;
4857def err_redefinition_different_typedef : Error<
4858  "%select{typedef|type alias|type alias template}0 "
4859  "redefinition with different types%diff{ ($ vs $)|}1,2">;
4860def err_tag_reference_non_tag : Error<
4861  "%select{non-struct type|non-class type|non-union type|non-enum "
4862  "type|typedef|type alias|template|type alias template|template "
4863  "template argument}1 %0 cannot be referenced with a "
4864  "%select{struct|interface|union|class|enum}2 specifier">;
4865def err_tag_reference_conflict : Error<
4866  "implicit declaration introduced by elaborated type conflicts with a "
4867  "%select{non-struct type|non-class type|non-union type|non-enum "
4868  "type|typedef|type alias|template|type alias template|template "
4869  "template argument}0 of the same name">;
4870def err_dependent_tag_decl : Error<
4871  "%select{declaration|definition}0 of "
4872  "%select{struct|interface|union|class|enum}1 in a dependent scope">;
4873def err_tag_definition_of_typedef : Error<
4874  "definition of type %0 conflicts with %select{typedef|type alias}1 of the same name">;
4875def err_conflicting_types : Error<"conflicting types for %0">;
4876def err_different_pass_object_size_params : Error<
4877  "conflicting pass_object_size attributes on parameters">;
4878def err_late_asm_label_name : Error<
4879  "cannot apply asm label to %select{variable|function}0 after its first use">;
4880def err_different_asm_label : Error<"conflicting asm label">;
4881def err_nested_redefinition : Error<"nested redefinition of %0">;
4882def err_use_with_wrong_tag : Error<
4883  "use of %0 with tag type that does not match previous declaration">;
4884def warn_struct_class_tag_mismatch : Warning<
4885  "%select{struct|interface|class}0%select{| template}1 %2 was previously "
4886  "declared as a %select{struct|interface|class}3%select{| template}1; "
4887  "this is valid, but may result in linker errors under the Microsoft C++ ABI">,
4888  InGroup<MismatchedTags>, DefaultIgnore;
4889def warn_struct_class_previous_tag_mismatch : Warning<
4890  "%2 defined as %select{a struct|an interface|a class}0%select{| template}1 "
4891  "here but previously declared as "
4892  "%select{a struct|an interface|a class}3%select{| template}1; "
4893  "this is valid, but may result in linker errors under the Microsoft C++ ABI">,
4894  InGroup<MismatchedTags>, DefaultIgnore;
4895def note_struct_class_suggestion : Note<
4896  "did you mean %select{struct|interface|class}0 here?">;
4897def ext_forward_ref_enum : Extension<
4898  "ISO C forbids forward references to 'enum' types">;
4899def err_forward_ref_enum : Error<
4900  "ISO C++ forbids forward references to 'enum' types">;
4901def ext_ms_forward_ref_enum : ExtWarn<
4902  "forward references to 'enum' types are a Microsoft extension">,
4903  InGroup<MicrosoftEnumForwardReference>;
4904def ext_forward_ref_enum_def : Extension<
4905  "redeclaration of already-defined enum %0 is a GNU extension">,
4906  InGroup<GNURedeclaredEnum>;
4907
4908def err_redefinition_of_enumerator : Error<"redefinition of enumerator %0">;
4909def err_duplicate_member : Error<"duplicate member %0">;
4910def err_misplaced_ivar : Error<
4911  "instance variables may not be placed in %select{categories|class extension}0">;
4912def warn_ivars_in_interface : Warning<
4913  "declaration of instance variables in the interface is deprecated">,
4914  InGroup<DiagGroup<"objc-interface-ivars">>, DefaultIgnore;
4915def ext_enum_value_not_int : Extension<
4916  "ISO C restricts enumerator values to range of 'int' (%0 is too "
4917  "%select{small|large}1)">;
4918def ext_enum_too_large : ExtWarn<
4919  "enumeration values exceed range of largest integer">, InGroup<EnumTooLarge>;
4920def ext_enumerator_increment_too_large : ExtWarn<
4921  "incremented enumerator value %0 is not representable in the "
4922  "largest integer type">, InGroup<EnumTooLarge>;
4923def warn_flag_enum_constant_out_of_range : Warning<
4924  "enumeration value %0 is out of range of flags in enumeration type %1">,
4925  InGroup<FlagEnum>;
4926
4927def warn_illegal_constant_array_size : Extension<
4928  "size of static array must be an integer constant expression">;
4929def err_vm_decl_in_file_scope : Error<
4930  "variably modified type declaration not allowed at file scope">;
4931def err_vm_decl_has_extern_linkage : Error<
4932  "variably modified type declaration cannot have 'extern' linkage">;
4933def err_typecheck_field_variable_size : Error<
4934  "fields must have a constant size: 'variable length array in structure' "
4935  "extension will never be supported">;
4936def err_vm_func_decl : Error<
4937  "function declaration cannot have variably modified type">;
4938def err_array_too_large : Error<
4939  "array is too large (%0 elements)">;
4940
4941def err_typecheck_negative_array_size : Error<"array size is negative">;
4942def warn_typecheck_function_qualifiers_ignored : Warning<
4943  "'%0' qualifier on function type %1 has no effect">,
4944  InGroup<IgnoredQualifiers>;
4945def warn_typecheck_function_qualifiers_unspecified : Warning<
4946  "'%0' qualifier on function type %1 has unspecified behavior">;
4947def warn_typecheck_reference_qualifiers : Warning<
4948  "'%0' qualifier on reference type %1 has no effect">,
4949  InGroup<IgnoredQualifiers>;
4950def err_typecheck_invalid_restrict_not_pointer : Error<
4951  "restrict requires a pointer or reference (%0 is invalid)">;
4952def err_typecheck_invalid_restrict_not_pointer_noarg : Error<
4953  "restrict requires a pointer or reference">;
4954def err_typecheck_invalid_restrict_invalid_pointee : Error<
4955  "pointer to function type %0 may not be 'restrict' qualified">;
4956def ext_typecheck_zero_array_size : Extension<
4957  "zero size arrays are an extension">, InGroup<ZeroLengthArray>;
4958def err_typecheck_zero_array_size : Error<
4959  "zero-length arrays are not permitted in C++">;
4960def warn_typecheck_zero_static_array_size : Warning<
4961  "'static' has no effect on zero-length arrays">,
4962  InGroup<ArrayBounds>;
4963def err_array_size_non_int : Error<"size of array has non-integer type %0">;
4964def err_init_element_not_constant : Error<
4965  "initializer element is not a compile-time constant">;
4966def ext_aggregate_init_not_constant : Extension<
4967  "initializer for aggregate is not a compile-time constant">, InGroup<C99>;
4968def err_local_cant_init : Error<
4969  "'__local' variable cannot have an initializer">;
4970def err_block_extern_cant_init : Error<
4971  "'extern' variable cannot have an initializer">;
4972def warn_extern_init : Warning<"'extern' variable has an initializer">,
4973  InGroup<DiagGroup<"extern-initializer">>;
4974def err_variable_object_no_init : Error<
4975  "variable-sized object may not be initialized">;
4976def err_excess_initializers : Error<
4977  "excess elements in %select{array|vector|scalar|union|struct}0 initializer">;
4978def ext_excess_initializers : ExtWarn<
4979  "excess elements in %select{array|vector|scalar|union|struct}0 initializer">;
4980def err_excess_initializers_in_char_array_initializer : Error<
4981  "excess elements in char array initializer">;
4982def ext_excess_initializers_in_char_array_initializer : ExtWarn<
4983  "excess elements in char array initializer">;
4984def err_initializer_string_for_char_array_too_long : Error<
4985  "initializer-string for char array is too long">;
4986def ext_initializer_string_for_char_array_too_long : ExtWarn<
4987  "initializer-string for char array is too long">;
4988def warn_missing_field_initializers : Warning<
4989  "missing field %0 initializer">,
4990  InGroup<MissingFieldInitializers>, DefaultIgnore;
4991def warn_braces_around_scalar_init : Warning<
4992  "braces around scalar initializer">, InGroup<DiagGroup<"braced-scalar-init">>;
4993def ext_many_braces_around_scalar_init : ExtWarn<
4994  "too many braces around scalar initializer">,
4995  InGroup<DiagGroup<"many-braces-around-scalar-init">>, SFINAEFailure;
4996def ext_complex_component_init : Extension<
4997  "complex initialization specifying real and imaginary components "
4998  "is an extension">, InGroup<DiagGroup<"complex-component-init">>;
4999def err_empty_scalar_initializer : Error<"scalar initializer cannot be empty">;
5000def warn_cxx98_compat_empty_scalar_initializer : Warning<
5001  "scalar initialized from empty initializer list is incompatible with C++98">,
5002  InGroup<CXX98Compat>, DefaultIgnore;
5003def warn_cxx98_compat_reference_list_init : Warning<
5004  "reference initialized from initializer list is incompatible with C++98">,
5005  InGroup<CXX98Compat>, DefaultIgnore;
5006def warn_cxx98_compat_initializer_list_init : Warning<
5007  "initialization of initializer_list object is incompatible with C++98">,
5008  InGroup<CXX98Compat>, DefaultIgnore;
5009def warn_cxx98_compat_ctor_list_init : Warning<
5010  "constructor call from initializer list is incompatible with C++98">,
5011  InGroup<CXX98Compat>, DefaultIgnore;
5012def err_illegal_initializer : Error<
5013  "illegal initializer (only variables can be initialized)">;
5014def err_illegal_initializer_type : Error<"illegal initializer type %0">;
5015def ext_init_list_type_narrowing : ExtWarn<
5016  "type %0 cannot be narrowed to %1 in initializer list">,
5017  InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
5018def ext_init_list_variable_narrowing : ExtWarn<
5019  "non-constant-expression cannot be narrowed from type %0 to %1 in "
5020  "initializer list">, InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
5021def ext_init_list_constant_narrowing : ExtWarn<
5022  "constant expression evaluates to %0 which cannot be narrowed to type %1">,
5023  InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
5024def warn_init_list_type_narrowing : Warning<
5025  "type %0 cannot be narrowed to %1 in initializer list in C++11">,
5026  InGroup<CXX11Narrowing>, DefaultIgnore;
5027def warn_init_list_variable_narrowing : Warning<
5028  "non-constant-expression cannot be narrowed from type %0 to %1 in "
5029  "initializer list in C++11">,
5030  InGroup<CXX11Narrowing>, DefaultIgnore;
5031def warn_init_list_constant_narrowing : Warning<
5032  "constant expression evaluates to %0 which cannot be narrowed to type %1 in "
5033  "C++11">,
5034  InGroup<CXX11Narrowing>, DefaultIgnore;
5035def note_init_list_narrowing_silence : Note<
5036  "insert an explicit cast to silence this issue">;
5037def err_init_objc_class : Error<
5038  "cannot initialize Objective-C class type %0">;
5039def err_implicit_empty_initializer : Error<
5040  "initializer for aggregate with no elements requires explicit braces">;
5041def err_bitfield_has_negative_width : Error<
5042  "bit-field %0 has negative width (%1)">;
5043def err_anon_bitfield_has_negative_width : Error<
5044  "anonymous bit-field has negative width (%0)">;
5045def err_bitfield_has_zero_width : Error<"named bit-field %0 has zero width">;
5046def err_bitfield_width_exceeds_type_width : Error<
5047  "width of bit-field %0 (%1 bits) exceeds %select{width|size}2 "
5048  "of its type (%3 bit%s3)">;
5049def err_anon_bitfield_width_exceeds_type_width : Error<
5050  "width of anonymous bit-field (%0 bits) exceeds %select{width|size}1 "
5051  "of its type (%2 bit%s2)">;
5052def err_incorrect_number_of_vector_initializers : Error<
5053  "number of elements must be either one or match the size of the vector">;
5054
5055// Used by C++ which allows bit-fields that are wider than the type.
5056def warn_bitfield_width_exceeds_type_width: Warning<
5057  "width of bit-field %0 (%1 bits) exceeds the width of its type; value will "
5058  "be truncated to %2 bit%s2">, InGroup<BitFieldWidth>;
5059def warn_anon_bitfield_width_exceeds_type_width : Warning<
5060  "width of anonymous bit-field (%0 bits) exceeds width of its type; value "
5061  "will be truncated to %1 bit%s1">, InGroup<BitFieldWidth>;
5062def warn_bitfield_too_small_for_enum : Warning<
5063  "bit-field %0 is not wide enough to store all enumerators of %1">,
5064  InGroup<BitFieldEnumConversion>, DefaultIgnore;
5065def note_widen_bitfield : Note<
5066  "widen this field to %0 bits to store all values of %1">;
5067def warn_unsigned_bitfield_assigned_signed_enum : Warning<
5068  "assigning value of signed enum type %1 to unsigned bit-field %0; "
5069  "negative enumerators of enum %1 will be converted to positive values">,
5070  InGroup<BitFieldEnumConversion>, DefaultIgnore;
5071def warn_signed_bitfield_enum_conversion : Warning<
5072  "signed bit-field %0 needs an extra bit to represent the largest positive "
5073  "enumerators of %1">,
5074  InGroup<BitFieldEnumConversion>, DefaultIgnore;
5075def note_change_bitfield_sign : Note<
5076  "consider making the bitfield type %select{unsigned|signed}0">;
5077
5078def warn_missing_braces : Warning<
5079  "suggest braces around initialization of subobject">,
5080  InGroup<MissingBraces>, DefaultIgnore;
5081
5082def err_redefinition_of_label : Error<"redefinition of label %0">;
5083def err_undeclared_label_use : Error<"use of undeclared label %0">;
5084def err_goto_ms_asm_label : Error<
5085  "cannot jump from this goto statement to label %0 inside an inline assembly block">;
5086def note_goto_ms_asm_label : Note<
5087  "inline assembly label %0 declared here">;
5088def warn_unused_label : Warning<"unused label %0">,
5089  InGroup<UnusedLabel>, DefaultIgnore;
5090
5091def err_goto_into_protected_scope : Error<
5092  "cannot jump from this goto statement to its label">;
5093def ext_goto_into_protected_scope : ExtWarn<
5094  "jump from this goto statement to its label is a Microsoft extension">,
5095  InGroup<MicrosoftGoto>;
5096def warn_cxx98_compat_goto_into_protected_scope : Warning<
5097  "jump from this goto statement to its label is incompatible with C++98">,
5098  InGroup<CXX98Compat>, DefaultIgnore;
5099def err_switch_into_protected_scope : Error<
5100  "cannot jump from switch statement to this case label">;
5101def warn_cxx98_compat_switch_into_protected_scope : Warning<
5102  "jump from switch statement to this case label is incompatible with C++98">,
5103  InGroup<CXX98Compat>, DefaultIgnore;
5104def err_indirect_goto_without_addrlabel : Error<
5105  "indirect goto in function with no address-of-label expressions">;
5106def err_indirect_goto_in_protected_scope : Error<
5107  "cannot jump from this %select{indirect|asm}0 goto statement to one of its possible targets">;
5108def warn_cxx98_compat_indirect_goto_in_protected_scope : Warning<
5109  "jump from this %select{indirect|asm}0 goto statement to one of its possible targets "
5110  "is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
5111def note_indirect_goto_target : Note<
5112  "possible target of %select{indirect|asm}0 goto statement">;
5113def note_protected_by_variable_init : Note<
5114  "jump bypasses variable initialization">;
5115def note_protected_by_variable_nontriv_destructor : Note<
5116  "jump bypasses variable with a non-trivial destructor">;
5117def note_protected_by_variable_non_pod : Note<
5118  "jump bypasses initialization of non-POD variable">;
5119def note_protected_by_cleanup : Note<
5120  "jump bypasses initialization of variable with __attribute__((cleanup))">;
5121def note_protected_by_vla_typedef : Note<
5122  "jump bypasses initialization of VLA typedef">;
5123def note_protected_by_vla_type_alias : Note<
5124  "jump bypasses initialization of VLA type alias">;
5125def note_protected_by_constexpr_if : Note<
5126  "jump enters controlled statement of constexpr if">;
5127def note_protected_by_if_available : Note<
5128  "jump enters controlled statement of if available">;
5129def note_protected_by_vla : Note<
5130  "jump bypasses initialization of variable length array">;
5131def note_protected_by_objc_fast_enumeration : Note<
5132  "jump enters Objective-C fast enumeration loop">;
5133def note_protected_by_objc_try : Note<
5134  "jump bypasses initialization of @try block">;
5135def note_protected_by_objc_catch : Note<
5136  "jump bypasses initialization of @catch block">;
5137def note_protected_by_objc_finally : Note<
5138  "jump bypasses initialization of @finally block">;
5139def note_protected_by_objc_synchronized : Note<
5140  "jump bypasses initialization of @synchronized block">;
5141def note_protected_by_objc_autoreleasepool : Note<
5142  "jump bypasses auto release push of @autoreleasepool block">;
5143def note_protected_by_cxx_try : Note<
5144  "jump bypasses initialization of try block">;
5145def note_protected_by_cxx_catch : Note<
5146  "jump bypasses initialization of catch block">;
5147def note_protected_by_seh_try : Note<
5148  "jump bypasses initialization of __try block">;
5149def note_protected_by_seh_except : Note<
5150  "jump bypasses initialization of __except block">;
5151def note_protected_by_seh_finally : Note<
5152  "jump bypasses initialization of __finally block">;
5153def note_protected_by___block : Note<
5154  "jump bypasses setup of __block variable">;
5155def note_protected_by_objc_strong_init : Note<
5156  "jump bypasses initialization of __strong variable">;
5157def note_protected_by_objc_weak_init : Note<
5158  "jump bypasses initialization of __weak variable">;
5159def note_protected_by_non_trivial_c_struct_init : Note<
5160  "jump bypasses initialization of variable of non-trivial C struct type">;
5161def note_enters_block_captures_cxx_obj : Note<
5162  "jump enters lifetime of block which captures a destructible C++ object">;
5163def note_enters_block_captures_strong : Note<
5164  "jump enters lifetime of block which strongly captures a variable">;
5165def note_enters_block_captures_weak : Note<
5166  "jump enters lifetime of block which weakly captures a variable">;
5167def note_enters_block_captures_non_trivial_c_struct : Note<
5168  "jump enters lifetime of block which captures a C struct that is non-trivial "
5169  "to destroy">;
5170
5171def note_exits_cleanup : Note<
5172  "jump exits scope of variable with __attribute__((cleanup))">;
5173def note_exits_dtor : Note<
5174  "jump exits scope of variable with non-trivial destructor">;
5175def note_exits_temporary_dtor : Note<
5176  "jump exits scope of lifetime-extended temporary with non-trivial "
5177  "destructor">;
5178def note_exits___block : Note<
5179  "jump exits scope of __block variable">;
5180def note_exits_objc_try : Note<
5181  "jump exits @try block">;
5182def note_exits_objc_catch : Note<
5183  "jump exits @catch block">;
5184def note_exits_objc_finally : Note<
5185  "jump exits @finally block">;
5186def note_exits_objc_synchronized : Note<
5187  "jump exits @synchronized block">;
5188def note_exits_cxx_try : Note<
5189  "jump exits try block">;
5190def note_exits_cxx_catch : Note<
5191  "jump exits catch block">;
5192def note_exits_seh_try : Note<
5193  "jump exits __try block">;
5194def note_exits_seh_except : Note<
5195  "jump exits __except block">;
5196def note_exits_seh_finally : Note<
5197  "jump exits __finally block">;
5198def note_exits_objc_autoreleasepool : Note<
5199  "jump exits autoreleasepool block">;
5200def note_exits_objc_strong : Note<
5201  "jump exits scope of __strong variable">;
5202def note_exits_objc_weak : Note<
5203  "jump exits scope of __weak variable">;
5204def note_exits_block_captures_cxx_obj : Note<
5205  "jump exits lifetime of block which captures a destructible C++ object">;
5206def note_exits_block_captures_strong : Note<
5207  "jump exits lifetime of block which strongly captures a variable">;
5208def note_exits_block_captures_weak : Note<
5209  "jump exits lifetime of block which weakly captures a variable">;
5210def note_exits_block_captures_non_trivial_c_struct : Note<
5211  "jump exits lifetime of block which captures a C struct that is non-trivial "
5212  "to destroy">;
5213
5214def err_func_returning_qualified_void : ExtWarn<
5215  "function cannot return qualified void type %0">,
5216  InGroup<DiagGroup<"qualified-void-return-type">>;
5217def err_func_returning_array_function : Error<
5218  "function cannot return %select{array|function}0 type %1">;
5219def err_field_declared_as_function : Error<"field %0 declared as a function">;
5220def err_field_incomplete : Error<"field has incomplete type %0">;
5221def ext_variable_sized_type_in_struct : ExtWarn<
5222  "field %0 with variable sized type %1 not at the end of a struct or class is"
5223  " a GNU extension">, InGroup<GNUVariableSizedTypeNotAtEnd>;
5224
5225def ext_c99_flexible_array_member : Extension<
5226  "flexible array members are a C99 feature">, InGroup<C99>;
5227def err_flexible_array_virtual_base : Error<
5228  "flexible array member %0 not allowed in "
5229  "%select{struct|interface|union|class|enum}1 which has a virtual base class">;
5230def err_flexible_array_empty_aggregate : Error<
5231  "flexible array member %0 not allowed in otherwise empty "
5232  "%select{struct|interface|union|class|enum}1">;
5233def err_flexible_array_has_nontrivial_dtor : Error<
5234  "flexible array member %0 of type %1 with non-trivial destruction">;
5235def ext_flexible_array_in_struct : Extension<
5236  "%0 may not be nested in a struct due to flexible array member">,
5237  InGroup<FlexibleArrayExtensions>;
5238def ext_flexible_array_in_array : Extension<
5239  "%0 may not be used as an array element due to flexible array member">,
5240  InGroup<FlexibleArrayExtensions>;
5241def err_flexible_array_init : Error<
5242  "initialization of flexible array member is not allowed">;
5243def ext_flexible_array_empty_aggregate_ms : Extension<
5244  "flexible array member %0 in otherwise empty "
5245  "%select{struct|interface|union|class|enum}1 is a Microsoft extension">,
5246  InGroup<MicrosoftFlexibleArray>;
5247def err_flexible_array_union : Error<
5248  "flexible array member %0 in a union is not allowed">;
5249def ext_flexible_array_union_ms : Extension<
5250  "flexible array member %0 in a union is a Microsoft extension">,
5251  InGroup<MicrosoftFlexibleArray>;
5252def ext_flexible_array_empty_aggregate_gnu : Extension<
5253  "flexible array member %0 in otherwise empty "
5254  "%select{struct|interface|union|class|enum}1 is a GNU extension">,
5255  InGroup<GNUEmptyStruct>;
5256def ext_flexible_array_union_gnu : Extension<
5257  "flexible array member %0 in a union is a GNU extension">, InGroup<GNUFlexibleArrayUnionMember>;
5258
5259def err_flexible_array_not_at_end : Error<
5260  "flexible array member %0 with type %1 is not at the end of"
5261  " %select{struct|interface|union|class|enum}2">;
5262def err_objc_variable_sized_type_not_at_end : Error<
5263  "field %0 with variable sized type %1 is not at the end of class">;
5264def note_next_field_declaration : Note<
5265  "next field declaration is here">;
5266def note_next_ivar_declaration : Note<
5267  "next %select{instance variable declaration|synthesized instance variable}0"
5268  " is here">;
5269def err_synthesize_variable_sized_ivar : Error<
5270  "synthesized property with variable size type %0"
5271  " requires an existing instance variable">;
5272def err_flexible_array_arc_retainable : Error<
5273  "ARC forbids flexible array members with retainable object type">;
5274def warn_variable_sized_ivar_visibility : Warning<
5275  "field %0 with variable sized type %1 is not visible to subclasses and"
5276  " can conflict with their instance variables">, InGroup<ObjCFlexibleArray>;
5277def warn_superclass_variable_sized_type_not_at_end : Warning<
5278  "field %0 can overwrite instance variable %1 with variable sized type %2"
5279  " in superclass %3">, InGroup<ObjCFlexibleArray>;
5280
5281let CategoryName = "ARC Semantic Issue" in {
5282
5283// ARC-mode diagnostics.
5284
5285let CategoryName = "ARC Weak References" in {
5286
5287def err_arc_weak_no_runtime : Error<
5288  "cannot create __weak reference because the current deployment target "
5289  "does not support weak references">;
5290def err_arc_weak_disabled : Error<
5291  "cannot create __weak reference in file using manual reference counting">;
5292def err_synthesizing_arc_weak_property_disabled : Error<
5293  "cannot synthesize weak property in file using manual reference counting">;
5294def err_synthesizing_arc_weak_property_no_runtime : Error<
5295  "cannot synthesize weak property because the current deployment target "
5296  "does not support weak references">;
5297def err_arc_unsupported_weak_class : Error<
5298  "class is incompatible with __weak references">;
5299def err_arc_weak_unavailable_assign : Error<
5300  "assignment of a weak-unavailable object to a __weak object">;
5301def err_arc_weak_unavailable_property : Error<
5302  "synthesizing __weak instance variable of type %0, which does not "
5303  "support weak references">;
5304def note_implemented_by_class : Note<
5305  "when implemented by class %0">;
5306def err_arc_convesion_of_weak_unavailable : Error<
5307  "%select{implicit conversion|cast}0 of weak-unavailable object of type %1 to"
5308  " a __weak object of type %2">;
5309
5310} // end "ARC Weak References" category
5311
5312let CategoryName = "ARC Restrictions" in {
5313
5314def err_unavailable_in_arc : Error<
5315  "%0 is unavailable in ARC">;
5316def note_arc_forbidden_type : Note<
5317  "declaration uses type that is ill-formed in ARC">;
5318def note_performs_forbidden_arc_conversion : Note<
5319  "inline function performs a conversion which is forbidden in ARC">;
5320def note_arc_init_returns_unrelated : Note<
5321  "init method must return a type related to its receiver type">;
5322def note_arc_weak_disabled : Note<
5323  "declaration uses __weak, but ARC is disabled">;
5324def note_arc_weak_no_runtime : Note<"declaration uses __weak, which "
5325  "the current deployment target does not support">;
5326def note_arc_field_with_ownership : Note<
5327  "field has non-trivial ownership qualification">;
5328
5329def err_arc_illegal_explicit_message : Error<
5330  "ARC forbids explicit message send of %0">;
5331def err_arc_unused_init_message : Error<
5332  "the result of a delegate init call must be immediately returned "
5333  "or assigned to 'self'">;
5334def err_arc_mismatched_cast : Error<
5335  "%select{implicit conversion|cast}0 of "
5336  "%select{%2|a non-Objective-C pointer type %2|a block pointer|"
5337  "an Objective-C pointer|an indirect pointer to an Objective-C pointer}1"
5338  " to %3 is disallowed with ARC">;
5339def err_arc_nolifetime_behavior : Error<
5340  "explicit ownership qualifier on cast result has no effect">;
5341def err_arc_objc_object_in_tag : Error<
5342  "ARC forbids %select{Objective-C objects|blocks}0 in "
5343  "%select{struct|interface|union|<<ERROR>>|enum}1">;
5344def err_arc_objc_property_default_assign_on_object : Error<
5345  "ARC forbids synthesizing a property of an Objective-C object "
5346  "with unspecified ownership or storage attribute">;
5347def err_arc_illegal_selector : Error<
5348  "ARC forbids use of %0 in a @selector">;
5349def err_arc_illegal_method_def : Error<
5350  "ARC forbids %select{implementation|synthesis}0 of %1">;
5351def warn_arc_strong_pointer_objc_pointer : Warning<
5352  "method parameter of type %0 with no explicit ownership">,
5353  InGroup<DiagGroup<"explicit-ownership-type">>, DefaultIgnore;
5354
5355} // end "ARC Restrictions" category
5356
5357def err_arc_lost_method_convention : Error<
5358  "method was declared as %select{an 'alloc'|a 'copy'|an 'init'|a 'new'}0 "
5359  "method, but its implementation doesn't match because %select{"
5360  "its result type is not an object pointer|"
5361  "its result type is unrelated to its receiver type}1">;
5362def note_arc_lost_method_convention : Note<"declaration in interface">;
5363def err_arc_gained_method_convention : Error<
5364  "method implementation does not match its declaration">;
5365def note_arc_gained_method_convention : Note<
5366  "declaration in interface is not in the '%select{alloc|copy|init|new}0' "
5367  "family because %select{its result type is not an object pointer|"
5368  "its result type is unrelated to its receiver type}1">;
5369def err_typecheck_arc_assign_self : Error<
5370  "cannot assign to 'self' outside of a method in the init family">;
5371def err_typecheck_arc_assign_self_class_method : Error<
5372  "cannot assign to 'self' in a class method">;
5373def err_typecheck_arr_assign_enumeration : Error<
5374  "fast enumeration variables cannot be modified in ARC by default; "
5375  "declare the variable __strong to allow this">;
5376def err_typecheck_arc_assign_externally_retained : Error<
5377  "variable declared with 'objc_externally_retained' "
5378  "cannot be modified in ARC">;
5379def warn_arc_retained_assign : Warning<
5380  "assigning retained object to %select{weak|unsafe_unretained}0 "
5381  "%select{property|variable}1"
5382  "; object will be released after assignment">,
5383  InGroup<ARCUnsafeRetainedAssign>;
5384def warn_arc_retained_property_assign : Warning<
5385  "assigning retained object to unsafe property"
5386  "; object will be released after assignment">,
5387  InGroup<ARCUnsafeRetainedAssign>;
5388def warn_arc_literal_assign : Warning<
5389  "assigning %select{array literal|dictionary literal|numeric literal|boxed expression|<should not happen>|block literal}0"
5390  " to a weak %select{property|variable}1"
5391  "; object will be released after assignment">,
5392  InGroup<ARCUnsafeRetainedAssign>;
5393def err_arc_new_array_without_ownership : Error<
5394  "'new' cannot allocate an array of %0 with no explicit ownership">;
5395def err_arc_autoreleasing_var : Error<
5396  "%select{__block variables|global variables|fields|instance variables}0 cannot have "
5397  "__autoreleasing ownership">;
5398def err_arc_autoreleasing_capture : Error<
5399  "cannot capture __autoreleasing variable in a "
5400  "%select{block|lambda by copy}0">;
5401def err_arc_thread_ownership : Error<
5402  "thread-local variable has non-trivial ownership: type is %0">;
5403def err_arc_indirect_no_ownership : Error<
5404  "%select{pointer|reference}1 to non-const type %0 with no explicit ownership">;
5405def err_arc_array_param_no_ownership : Error<
5406  "must explicitly describe intended ownership of an object array parameter">;
5407def err_arc_pseudo_dtor_inconstant_quals : Error<
5408  "pseudo-destructor destroys object of type %0 with inconsistently-qualified "
5409  "type %1">;
5410def err_arc_init_method_unrelated_result_type : Error<
5411  "init methods must return a type related to the receiver type">;
5412def err_arc_nonlocal_writeback : Error<
5413  "passing address of %select{non-local|non-scalar}0 object to "
5414  "__autoreleasing parameter for write-back">;
5415def err_arc_method_not_found : Error<
5416  "no known %select{instance|class}1 method for selector %0">;
5417def err_arc_receiver_forward_class : Error<
5418  "receiver %0 for class message is a forward declaration">;
5419def err_arc_may_not_respond : Error<
5420  "no visible @interface for %0 declares the selector %1">;
5421def err_arc_receiver_forward_instance : Error<
5422  "receiver type %0 for instance message is a forward declaration">;
5423def warn_receiver_forward_instance : Warning<
5424  "receiver type %0 for instance message is a forward declaration">,
5425  InGroup<ForwardClassReceiver>, DefaultIgnore;
5426def err_arc_collection_forward : Error<
5427  "collection expression type %0 is a forward declaration">;
5428def err_arc_multiple_method_decl : Error<
5429  "multiple methods named %0 found with mismatched result, "
5430  "parameter type or attributes">;
5431def warn_arc_lifetime_result_type : Warning<
5432  "ARC %select{unused|__unsafe_unretained|__strong|__weak|__autoreleasing}0 "
5433  "lifetime qualifier on return type is ignored">,
5434  InGroup<IgnoredQualifiers>;
5435
5436let CategoryName = "ARC Retain Cycle" in {
5437
5438def warn_arc_retain_cycle : Warning<
5439  "capturing %0 strongly in this block is likely to lead to a retain cycle">,
5440  InGroup<ARCRetainCycles>;
5441def note_arc_retain_cycle_owner : Note<
5442  "block will be retained by %select{the captured object|an object strongly "
5443  "retained by the captured object}0">;
5444
5445} // end "ARC Retain Cycle" category
5446
5447def warn_arc_object_memaccess : Warning<
5448  "%select{destination for|source of}0 this %1 call is a pointer to "
5449  "ownership-qualified type %2">, InGroup<ARCNonPodMemAccess>;
5450
5451let CategoryName = "ARC and @properties" in {
5452
5453def err_arc_strong_property_ownership : Error<
5454  "existing instance variable %1 for strong property %0 may not be "
5455  "%select{|__unsafe_unretained||__weak}2">;
5456def err_arc_assign_property_ownership : Error<
5457  "existing instance variable %1 for property %0 with %select{unsafe_unretained|assign}2 "
5458  "attribute must be __unsafe_unretained">;
5459def err_arc_inconsistent_property_ownership : Error<
5460  "%select{|unsafe_unretained|strong|weak}1 property %0 may not also be "
5461  "declared %select{|__unsafe_unretained|__strong|__weak|__autoreleasing}2">;
5462
5463} // end "ARC and @properties" category
5464
5465def warn_block_capture_autoreleasing : Warning<
5466  "block captures an autoreleasing out-parameter, which may result in "
5467  "use-after-free bugs">,
5468  InGroup<BlockCaptureAutoReleasing>;
5469def note_declare_parameter_strong : Note<
5470  "declare the parameter __strong or capture a __block __strong variable to "
5471  "keep values alive across autorelease pools">;
5472
5473def err_arc_atomic_ownership : Error<
5474  "cannot perform atomic operation on a pointer to type %0: type has "
5475  "non-trivial ownership">;
5476
5477let CategoryName = "ARC Casting Rules" in {
5478
5479def err_arc_bridge_cast_incompatible : Error<
5480  "incompatible types casting %0 to %1 with a %select{__bridge|"
5481  "__bridge_transfer|__bridge_retained}2 cast">;
5482def err_arc_bridge_cast_wrong_kind : Error<
5483  "cast of %select{Objective-C|block|C}0 pointer type %1 to "
5484  "%select{Objective-C|block|C}2 pointer type %3 cannot use %select{__bridge|"
5485  "__bridge_transfer|__bridge_retained}4">;
5486def err_arc_cast_requires_bridge : Error<
5487  "%select{cast|implicit conversion}0 of %select{Objective-C|block|C}1 "
5488  "pointer type %2 to %select{Objective-C|block|C}3 pointer type %4 "
5489  "requires a bridged cast">;
5490def note_arc_bridge : Note<
5491  "use __bridge to convert directly (no change in ownership)">;
5492def note_arc_cstyle_bridge : Note<
5493  "use __bridge with C-style cast to convert directly (no change in ownership)">;
5494def note_arc_bridge_transfer : Note<
5495  "use %select{__bridge_transfer|CFBridgingRelease call}1 to transfer "
5496  "ownership of a +1 %0 into ARC">;
5497def note_arc_cstyle_bridge_transfer : Note<
5498  "use __bridge_transfer with C-style cast to transfer "
5499  "ownership of a +1 %0 into ARC">;
5500def note_arc_bridge_retained : Note<
5501  "use %select{__bridge_retained|CFBridgingRetain call}1 to make an "
5502  "ARC object available as a +1 %0">;
5503def note_arc_cstyle_bridge_retained : Note<
5504  "use __bridge_retained with C-style cast to make an "
5505  "ARC object available as a +1 %0">;
5506
5507} // ARC Casting category
5508
5509} // ARC category name
5510
5511def err_flexible_array_init_needs_braces : Error<
5512  "flexible array requires brace-enclosed initializer">;
5513def err_illegal_decl_array_of_functions : Error<
5514  "'%0' declared as array of functions of type %1">;
5515def err_illegal_decl_array_incomplete_type : Error<
5516  "array has incomplete element type %0">;
5517def err_illegal_message_expr_incomplete_type : Error<
5518  "Objective-C message has incomplete result type %0">;
5519def err_illegal_decl_array_of_references : Error<
5520  "'%0' declared as array of references of type %1">;
5521def err_decl_negative_array_size : Error<
5522  "'%0' declared as an array with a negative size">;
5523def err_array_static_outside_prototype : Error<
5524  "%0 used in array declarator outside of function prototype">;
5525def err_array_static_not_outermost : Error<
5526  "%0 used in non-outermost array type derivation">;
5527def err_array_star_outside_prototype : Error<
5528  "star modifier used outside of function prototype">;
5529def err_illegal_decl_pointer_to_reference : Error<
5530  "'%0' declared as a pointer to a reference of type %1">;
5531def err_illegal_decl_mempointer_to_reference : Error<
5532  "'%0' declared as a member pointer to a reference of type %1">;
5533def err_illegal_decl_mempointer_to_void : Error<
5534  "'%0' declared as a member pointer to void">;
5535def err_illegal_decl_mempointer_in_nonclass : Error<
5536  "'%0' does not point into a class">;
5537def err_mempointer_in_nonclass_type : Error<
5538  "member pointer refers into non-class type %0">;
5539def err_reference_to_void : Error<"cannot form a reference to 'void'">;
5540def err_nonfunction_block_type : Error<
5541  "block pointer to non-function type is invalid">;
5542def err_return_block_has_expr : Error<"void block should not return a value">;
5543def err_block_return_missing_expr : Error<
5544  "non-void block should return a value">;
5545def err_func_def_incomplete_result : Error<
5546  "incomplete result type %0 in function definition">;
5547def err_atomic_specifier_bad_type : Error<
5548  "_Atomic cannot be applied to "
5549  "%select{incomplete |array |function |reference |atomic |qualified |}0type "
5550  "%1 %select{||||||which is not trivially copyable}0">;
5551
5552// Expressions.
5553def select_unary_expr_or_type_trait_kind : TextSubstitution<
5554  "%select{sizeof|alignof|vec_step|__builtin_omp_required_simd_align|"
5555  "__alignof}0">;
5556def ext_sizeof_alignof_function_type : Extension<
5557  "invalid application of '%sub{select_unary_expr_or_type_trait_kind}0' "
5558  "to a function type">, InGroup<PointerArith>;
5559def ext_sizeof_alignof_void_type : Extension<
5560  "invalid application of '%sub{select_unary_expr_or_type_trait_kind}0' "
5561  "to a void type">, InGroup<PointerArith>;
5562def err_opencl_sizeof_alignof_type : Error<
5563  "invalid application of '%sub{select_unary_expr_or_type_trait_kind}0' "
5564  "to a void type">;
5565def err_sizeof_alignof_incomplete_type : Error<
5566  "invalid application of '%sub{select_unary_expr_or_type_trait_kind}0' "
5567  "to an incomplete type %1">;
5568def err_sizeof_alignof_function_type : Error<
5569  "invalid application of '%sub{select_unary_expr_or_type_trait_kind}0' "
5570  "to a function type">;
5571def err_openmp_default_simd_align_expr : Error<
5572  "invalid application of '__builtin_omp_required_simd_align' to an expression, only type is allowed">;
5573def err_sizeof_alignof_typeof_bitfield : Error<
5574  "invalid application of '%select{sizeof|alignof|typeof}0' to bit-field">;
5575def err_alignof_member_of_incomplete_type : Error<
5576  "invalid application of 'alignof' to a field of a class still being defined">;
5577def err_vecstep_non_scalar_vector_type : Error<
5578  "'vec_step' requires built-in scalar or vector type, %0 invalid">;
5579def err_offsetof_incomplete_type : Error<
5580  "offsetof of incomplete type %0">;
5581def err_offsetof_record_type : Error<
5582  "offsetof requires struct, union, or class type, %0 invalid">;
5583def err_offsetof_array_type : Error<"offsetof requires array type, %0 invalid">;
5584def ext_offsetof_non_pod_type : ExtWarn<"offset of on non-POD type %0">,
5585  InGroup<InvalidOffsetof>;
5586def ext_offsetof_non_standardlayout_type : ExtWarn<
5587  "offset of on non-standard-layout type %0">, InGroup<InvalidOffsetof>;
5588def err_offsetof_bitfield : Error<"cannot compute offset of bit-field %0">;
5589def err_offsetof_field_of_virtual_base : Error<
5590  "invalid application of 'offsetof' to a field of a virtual base">;
5591def warn_sub_ptr_zero_size_types : Warning<
5592  "subtraction of pointers to type %0 of zero size has undefined behavior">,
5593  InGroup<PointerArith>;
5594def warn_pointer_arith_null_ptr : Warning<
5595  "performing pointer arithmetic on a null pointer has undefined behavior%select{| if the offset is nonzero}0">,
5596  InGroup<NullPointerArithmetic>, DefaultIgnore;
5597def warn_gnu_null_ptr_arith : Warning<
5598  "arithmetic on a null pointer treated as a cast from integer to pointer is a GNU extension">,
5599  InGroup<NullPointerArithmetic>, DefaultIgnore;
5600
5601def warn_floatingpoint_eq : Warning<
5602  "comparing floating point with == or != is unsafe">,
5603  InGroup<DiagGroup<"float-equal">>, DefaultIgnore;
5604
5605def warn_remainder_division_by_zero : Warning<
5606  "%select{remainder|division}0 by zero is undefined">,
5607  InGroup<DivZero>;
5608def warn_shift_lhs_negative : Warning<"shifting a negative signed value is undefined">,
5609  InGroup<DiagGroup<"shift-negative-value">>;
5610def warn_shift_negative : Warning<"shift count is negative">,
5611  InGroup<DiagGroup<"shift-count-negative">>;
5612def warn_shift_gt_typewidth : Warning<"shift count >= width of type">,
5613  InGroup<DiagGroup<"shift-count-overflow">>;
5614def warn_shift_result_gt_typewidth : Warning<
5615  "signed shift result (%0) requires %1 bits to represent, but %2 only has "
5616  "%3 bits">, InGroup<DiagGroup<"shift-overflow">>;
5617def warn_shift_result_sets_sign_bit : Warning<
5618  "signed shift result (%0) sets the sign bit of the shift expression's "
5619  "type (%1) and becomes negative">,
5620  InGroup<DiagGroup<"shift-sign-overflow">>, DefaultIgnore;
5621
5622def warn_precedence_bitwise_rel : Warning<
5623  "%0 has lower precedence than %1; %1 will be evaluated first">,
5624  InGroup<Parentheses>;
5625def note_precedence_bitwise_first : Note<
5626  "place parentheses around the %0 expression to evaluate it first">;
5627def note_precedence_silence : Note<
5628  "place parentheses around the '%0' expression to silence this warning">;
5629
5630def warn_precedence_conditional : Warning<
5631  "operator '?:' has lower precedence than '%0'; '%0' will be evaluated first">,
5632  InGroup<Parentheses>;
5633def note_precedence_conditional_first : Note<
5634  "place parentheses around the '?:' expression to evaluate it first">;
5635
5636def warn_logical_instead_of_bitwise : Warning<
5637  "use of logical '%0' with constant operand">,
5638  InGroup<DiagGroup<"constant-logical-operand">>;
5639def note_logical_instead_of_bitwise_change_operator : Note<
5640  "use '%0' for a bitwise operation">;
5641def note_logical_instead_of_bitwise_remove_constant : Note<
5642  "remove constant to silence this warning">;
5643
5644def warn_bitwise_op_in_bitwise_op : Warning<
5645  "'%0' within '%1'">, InGroup<BitwiseOpParentheses>;
5646
5647def warn_logical_and_in_logical_or : Warning<
5648  "'&&' within '||'">, InGroup<LogicalOpParentheses>;
5649
5650def warn_overloaded_shift_in_comparison :Warning<
5651  "overloaded operator %select{>>|<<}0 has higher precedence than "
5652  "comparison operator">,
5653  InGroup<OverloadedShiftOpParentheses>;
5654def note_evaluate_comparison_first :Note<
5655  "place parentheses around comparison expression to evaluate it first">;
5656
5657def warn_addition_in_bitshift : Warning<
5658  "operator '%0' has lower precedence than '%1'; "
5659  "'%1' will be evaluated first">, InGroup<ShiftOpParentheses>;
5660
5661def warn_self_assignment_builtin : Warning<
5662  "explicitly assigning value of variable of type %0 to itself">,
5663  InGroup<SelfAssignment>, DefaultIgnore;
5664def warn_self_assignment_overloaded : Warning<
5665  "explicitly assigning value of variable of type %0 to itself">,
5666  InGroup<SelfAssignmentOverloaded>, DefaultIgnore;
5667def warn_self_move : Warning<
5668  "explicitly moving variable of type %0 to itself">,
5669  InGroup<SelfMove>, DefaultIgnore;
5670
5671def warn_redundant_move_on_return : Warning<
5672  "redundant move in return statement">,
5673  InGroup<RedundantMove>, DefaultIgnore;
5674def warn_pessimizing_move_on_return : Warning<
5675  "moving a local object in a return statement prevents copy elision">,
5676  InGroup<PessimizingMove>, DefaultIgnore;
5677def warn_pessimizing_move_on_initialization : Warning<
5678  "moving a temporary object prevents copy elision">,
5679  InGroup<PessimizingMove>, DefaultIgnore;
5680def note_remove_move : Note<"remove std::move call here">;
5681
5682def warn_return_std_move : Warning<
5683  "local variable %0 will be copied despite being %select{returned|thrown}1 by name">,
5684  InGroup<ReturnStdMove>, DefaultIgnore;
5685def note_add_std_move : Note<
5686  "call 'std::move' explicitly to avoid copying">;
5687def warn_return_std_move_in_cxx11 : Warning<
5688  "prior to the resolution of a defect report against ISO C++11, "
5689  "local variable %0 would have been copied despite being returned by name, "
5690  "due to its not matching the function return type%diff{ ($ vs $)|}1,2">,
5691  InGroup<ReturnStdMoveInCXX11>, DefaultIgnore;
5692def note_add_std_move_in_cxx11 : Note<
5693  "call 'std::move' explicitly to avoid copying on older compilers">;
5694
5695def warn_string_plus_int : Warning<
5696  "adding %0 to a string does not append to the string">,
5697  InGroup<StringPlusInt>;
5698def warn_string_plus_char : Warning<
5699  "adding %0 to a string pointer does not append to the string">,
5700  InGroup<StringPlusChar>;
5701def note_string_plus_scalar_silence : Note<
5702  "use array indexing to silence this warning">;
5703
5704def warn_sizeof_array_param : Warning<
5705  "sizeof on array function parameter will return size of %0 instead of %1">,
5706  InGroup<SizeofArrayArgument>;
5707
5708def warn_sizeof_array_decay : Warning<
5709  "sizeof on pointer operation will return size of %0 instead of %1">,
5710  InGroup<SizeofArrayDecay>;
5711
5712def err_sizeof_nonfragile_interface : Error<
5713  "application of '%select{alignof|sizeof}1' to interface %0 is "
5714  "not supported on this architecture and platform">;
5715def err_atdef_nonfragile_interface : Error<
5716  "use of @defs is not supported on this architecture and platform">;
5717def err_subscript_nonfragile_interface : Error<
5718  "subscript requires size of interface %0, which is not constant for "
5719  "this architecture and platform">;
5720
5721def err_arithmetic_nonfragile_interface : Error<
5722  "arithmetic on pointer to interface %0, which is not a constant size for "
5723  "this architecture and platform">;
5724
5725
5726def ext_subscript_non_lvalue : Extension<
5727  "ISO C90 does not allow subscripting non-lvalue array">;
5728def err_typecheck_subscript_value : Error<
5729  "subscripted value is not an array, pointer, or vector">;
5730def err_typecheck_subscript_not_integer : Error<
5731  "array subscript is not an integer">;
5732def err_subscript_function_type : Error<
5733  "subscript of pointer to function type %0">;
5734def err_subscript_incomplete_type : Error<
5735  "subscript of pointer to incomplete type %0">;
5736def err_dereference_incomplete_type : Error<
5737  "dereference of pointer to incomplete type %0">;
5738def ext_gnu_subscript_void_type : Extension<
5739  "subscript of a pointer to void is a GNU extension">, InGroup<PointerArith>;
5740def err_typecheck_member_reference_struct_union : Error<
5741  "member reference base type %0 is not a structure or union">;
5742def err_typecheck_member_reference_ivar : Error<
5743  "%0 does not have a member named %1">;
5744def err_arc_weak_ivar_access : Error<
5745  "dereferencing a __weak pointer is not allowed due to possible "
5746  "null value caused by race condition, assign it to strong variable first">;
5747def err_typecheck_member_reference_arrow : Error<
5748  "member reference type %0 is not a pointer">;
5749def err_typecheck_member_reference_suggestion : Error<
5750  "member reference type %0 is %select{a|not a}1 pointer; did you mean to use '%select{->|.}1'?">;
5751def note_typecheck_member_reference_suggestion : Note<
5752  "did you mean to use '.' instead?">;
5753def note_member_reference_arrow_from_operator_arrow : Note<
5754  "'->' applied to return value of the operator->() declared here">;
5755def err_typecheck_member_reference_type : Error<
5756  "cannot refer to type member %0 in %1 with '%select{.|->}2'">;
5757def err_typecheck_member_reference_unknown : Error<
5758  "cannot refer to member %0 in %1 with '%select{.|->}2'">;
5759def err_member_reference_needs_call : Error<
5760  "base of member reference is a function; perhaps you meant to call "
5761  "it%select{| with no arguments}0?">;
5762def warn_subscript_is_char : Warning<"array subscript is of type 'char'">,
5763  InGroup<CharSubscript>, DefaultIgnore;
5764
5765def err_typecheck_incomplete_tag : Error<"incomplete definition of type %0">;
5766def err_no_member : Error<"no member named %0 in %1">;
5767def err_no_member_overloaded_arrow : Error<
5768  "no member named %0 in %1; did you mean to use '->' instead of '.'?">;
5769
5770def err_member_not_yet_instantiated : Error<
5771  "no member %0 in %1; it has not yet been instantiated">;
5772def note_non_instantiated_member_here : Note<
5773  "not-yet-instantiated member is declared here">;
5774
5775def err_enumerator_does_not_exist : Error<
5776  "enumerator %0 does not exist in instantiation of %1">;
5777def note_enum_specialized_here : Note<
5778  "enum %0 was explicitly specialized here">;
5779
5780def err_specialization_not_primary_template : Error<
5781  "cannot reference member of primary template because deduced class "
5782  "template specialization %0 is %select{instantiated from a partial|"
5783  "an explicit}1 specialization">;
5784
5785def err_member_redeclared : Error<"class member cannot be redeclared">;
5786def ext_member_redeclared : ExtWarn<"class member cannot be redeclared">,
5787  InGroup<RedeclaredClassMember>;
5788def err_member_redeclared_in_instantiation : Error<
5789  "multiple overloads of %0 instantiate to the same signature %1">;
5790def err_member_name_of_class : Error<"member %0 has the same name as its class">;
5791def err_member_def_undefined_record : Error<
5792  "out-of-line definition of %0 from class %1 without definition">;
5793def err_member_decl_does_not_match : Error<
5794  "out-of-line %select{declaration|definition}2 of %0 "
5795  "does not match any declaration in %1">;
5796def err_friend_decl_with_def_arg_must_be_def : Error<
5797  "friend declaration specifying a default argument must be a definition">;
5798def err_friend_decl_with_def_arg_redeclared : Error<
5799  "friend declaration specifying a default argument must be the only declaration">;
5800def err_friend_decl_does_not_match : Error<
5801  "friend declaration of %0 does not match any declaration in %1">;
5802def err_member_decl_does_not_match_suggest : Error<
5803  "out-of-line %select{declaration|definition}2 of %0 "
5804  "does not match any declaration in %1; did you mean %3?">;
5805def err_member_def_does_not_match_ret_type : Error<
5806  "return type of out-of-line definition of %q0 differs from "
5807  "that in the declaration">;
5808def err_nonstatic_member_out_of_line : Error<
5809  "non-static data member defined out-of-line">;
5810def err_qualified_typedef_declarator : Error<
5811  "typedef declarator cannot be qualified">;
5812def err_qualified_param_declarator : Error<
5813  "parameter declarator cannot be qualified">;
5814def ext_out_of_line_declaration : ExtWarn<
5815  "out-of-line declaration of a member must be a definition">,
5816  InGroup<OutOfLineDeclaration>, DefaultError;
5817def err_member_extra_qualification : Error<
5818  "extra qualification on member %0">;
5819def warn_member_extra_qualification : Warning<
5820  err_member_extra_qualification.Text>, InGroup<MicrosoftExtraQualification>;
5821def warn_namespace_member_extra_qualification : Warning<
5822  "extra qualification on member %0">,
5823  InGroup<DiagGroup<"extra-qualification">>;
5824def err_member_qualification : Error<
5825  "non-friend class member %0 cannot have a qualified name">;
5826def note_member_def_close_match : Note<"member declaration nearly matches">;
5827def note_member_def_close_const_match : Note<
5828  "member declaration does not match because "
5829  "it %select{is|is not}0 const qualified">;
5830def note_member_def_close_param_match : Note<
5831  "type of %ordinal0 parameter of member declaration does not match definition"
5832  "%diff{ ($ vs $)|}1,2">;
5833def note_local_decl_close_match : Note<"local declaration nearly matches">;
5834def note_local_decl_close_param_match : Note<
5835  "type of %ordinal0 parameter of local declaration does not match definition"
5836  "%diff{ ($ vs $)|}1,2">;
5837def err_typecheck_ivar_variable_size : Error<
5838  "instance variables must have a constant size">;
5839def err_ivar_reference_type : Error<
5840  "instance variables cannot be of reference type">;
5841def err_typecheck_illegal_increment_decrement : Error<
5842  "cannot %select{decrement|increment}1 value of type %0">;
5843def err_typecheck_expect_int : Error<
5844  "used type %0 where integer is required">;
5845def err_typecheck_arithmetic_incomplete_type : Error<
5846  "arithmetic on a pointer to an incomplete type %0">;
5847def err_typecheck_pointer_arith_function_type : Error<
5848  "arithmetic on%select{ a|}0 pointer%select{|s}0 to%select{ the|}2 "
5849  "function type%select{|s}2 %1%select{| and %3}2">;
5850def err_typecheck_pointer_arith_void_type : Error<
5851  "arithmetic on%select{ a|}0 pointer%select{|s}0 to void">;
5852def err_typecheck_decl_incomplete_type : Error<
5853  "variable has incomplete type %0">;
5854def ext_typecheck_decl_incomplete_type : ExtWarn<
5855  "tentative definition of variable with internal linkage has incomplete non-array type %0">,
5856  InGroup<DiagGroup<"tentative-definition-incomplete-type">>;
5857def err_tentative_def_incomplete_type : Error<
5858  "tentative definition has type %0 that is never completed">;
5859def warn_tentative_incomplete_array : Warning<
5860  "tentative array definition assumed to have one element">;
5861def err_typecheck_incomplete_array_needs_initializer : Error<
5862  "definition of variable with array type needs an explicit size "
5863  "or an initializer">;
5864def err_array_init_not_init_list : Error<
5865  "array initializer must be an initializer "
5866  "list%select{| or string literal| or wide string literal}0">;
5867def err_array_init_narrow_string_into_wchar : Error<
5868  "initializing wide char array with non-wide string literal">;
5869def err_array_init_wide_string_into_char : Error<
5870  "initializing char array with wide string literal">;
5871def err_array_init_incompat_wide_string_into_wchar : Error<
5872  "initializing wide char array with incompatible wide string literal">;
5873def err_array_init_plain_string_into_char8_t : Error<
5874  "initializing 'char8_t' array with plain string literal">;
5875def note_array_init_plain_string_into_char8_t : Note<
5876  "add 'u8' prefix to form a 'char8_t' string literal">;
5877def err_array_init_utf8_string_into_char : Error<
5878  "%select{|ISO C++20 does not permit }0initialization of char array with "
5879  "UTF-8 string literal%select{ is not permitted by '-fchar8_t'|}0">;
5880def warn_cxx2a_compat_utf8_string : Warning<
5881  "type of UTF-8 string literal will change from array of const char to "
5882  "array of const char8_t in C++2a">, InGroup<CXX2aCompat>, DefaultIgnore;
5883def note_cxx2a_compat_utf8_string_remove_u8 : Note<
5884  "remove 'u8' prefix to avoid a change of behavior; "
5885  "Clang encodes unprefixed narrow string literals as UTF-8">;
5886def err_array_init_different_type : Error<
5887  "cannot initialize array %diff{of type $ with array of type $|"
5888  "with different type of array}0,1">;
5889def err_array_init_non_constant_array : Error<
5890  "cannot initialize array %diff{of type $ with non-constant array of type $|"
5891  "with different type of array}0,1">;
5892def ext_array_init_copy : Extension<
5893  "initialization of an array "
5894  "%diff{of type $ from a compound literal of type $|"
5895  "from a compound literal}0,1 is a GNU extension">, InGroup<GNUCompoundLiteralInitializer>;
5896// This is intentionally not disabled by -Wno-gnu.
5897def ext_array_init_parens : ExtWarn<
5898  "parenthesized initialization of a member array is a GNU extension">,
5899  InGroup<DiagGroup<"gnu-array-member-paren-init">>, DefaultError;
5900def warn_deprecated_string_literal_conversion : Warning<
5901  "conversion from string literal to %0 is deprecated">,
5902  InGroup<CXX11CompatDeprecatedWritableStr>;
5903def ext_deprecated_string_literal_conversion : ExtWarn<
5904  "ISO C++11 does not allow conversion from string literal to %0">,
5905  InGroup<WritableStrings>, SFINAEFailure;
5906def err_realimag_invalid_type : Error<"invalid type %0 to %1 operator">;
5907def err_typecheck_sclass_fscope : Error<
5908  "illegal storage class on file-scoped variable">;
5909def warn_standalone_specifier : Warning<"'%0' ignored on this declaration">,
5910  InGroup<MissingDeclarations>;
5911def ext_standalone_specifier : ExtWarn<"'%0' is not permitted on a declaration "
5912  "of a type">, InGroup<MissingDeclarations>;
5913def err_standalone_class_nested_name_specifier : Error<
5914  "forward declaration of %select{class|struct|interface|union|enum}0 cannot "
5915  "have a nested name specifier">;
5916def err_typecheck_sclass_func : Error<"illegal storage class on function">;
5917def err_static_block_func : Error<
5918  "function declared in block scope cannot have 'static' storage class">;
5919def err_typecheck_address_of : Error<"address of %select{bit-field"
5920  "|vector element|property expression|register variable}0 requested">;
5921def ext_typecheck_addrof_void : Extension<
5922  "ISO C forbids taking the address of an expression of type 'void'">;
5923def err_unqualified_pointer_member_function : Error<
5924  "must explicitly qualify name of member function when taking its address">;
5925def err_invalid_form_pointer_member_function : Error<
5926  "cannot create a non-constant pointer to member function">;
5927def err_address_of_function_with_pass_object_size_params: Error<
5928  "cannot take address of function %0 because parameter %1 has "
5929  "pass_object_size attribute">;
5930def err_parens_pointer_member_function : Error<
5931  "cannot parenthesize the name of a method when forming a member pointer">;
5932def err_typecheck_invalid_lvalue_addrof_addrof_function : Error<
5933  "extra '&' taking address of overloaded function">;
5934def err_typecheck_invalid_lvalue_addrof : Error<
5935  "cannot take the address of an rvalue of type %0">;
5936def ext_typecheck_addrof_temporary : ExtWarn<
5937  "taking the address of a temporary object of type %0">,
5938  InGroup<AddressOfTemporary>, DefaultError;
5939def err_typecheck_addrof_temporary : Error<
5940  "taking the address of a temporary object of type %0">;
5941def err_typecheck_addrof_dtor : Error<
5942  "taking the address of a destructor">;
5943def err_typecheck_unary_expr : Error<
5944  "invalid argument type %0 to unary expression">;
5945def err_typecheck_indirection_requires_pointer : Error<
5946  "indirection requires pointer operand (%0 invalid)">;
5947def ext_typecheck_indirection_through_void_pointer : ExtWarn<
5948  "ISO C++ does not allow indirection on operand of type %0">,
5949  InGroup<DiagGroup<"void-ptr-dereference">>;
5950def warn_indirection_through_null : Warning<
5951  "indirection of non-volatile null pointer will be deleted, not trap">,
5952  InGroup<NullDereference>;
5953def warn_binding_null_to_reference : Warning<
5954  "binding dereferenced null pointer to reference has undefined behavior">,
5955  InGroup<NullDereference>;
5956def note_indirection_through_null : Note<
5957  "consider using __builtin_trap() or qualifying pointer with 'volatile'">;
5958def warn_pointer_indirection_from_incompatible_type : Warning<
5959  "dereference of type %1 that was reinterpret_cast from type %0 has undefined "
5960  "behavior">,
5961  InGroup<UndefinedReinterpretCast>, DefaultIgnore;
5962def warn_taking_address_of_packed_member : Warning<
5963  "taking address of packed member %0 of class or structure %q1 may result in an unaligned pointer value">,
5964  InGroup<DiagGroup<"address-of-packed-member">>;
5965
5966def err_objc_object_assignment : Error<
5967  "cannot assign to class object (%0 invalid)">;
5968def err_typecheck_invalid_operands : Error<
5969  "invalid operands to binary expression (%0 and %1)">;
5970def note_typecheck_invalid_operands_converted : Note<
5971  "%select{first|second}0 operand was implicitly converted to type %1">;
5972def err_typecheck_logical_vector_expr_gnu_cpp_restrict : Error<
5973  "logical expression with vector %select{type %1 and non-vector type %2|types"
5974  " %1 and %2}0 is only supported in C++">;
5975def err_typecheck_sub_ptr_compatible : Error<
5976  "%diff{$ and $ are not pointers to compatible types|"
5977  "pointers to incompatible types}0,1">;
5978def ext_typecheck_ordered_comparison_of_pointer_integer : ExtWarn<
5979  "ordered comparison between pointer and integer (%0 and %1)">;
5980def ext_typecheck_ordered_comparison_of_pointer_and_zero : Extension<
5981  "ordered comparison between pointer and zero (%0 and %1) is an extension">;
5982def err_typecheck_ordered_comparison_of_pointer_and_zero : Error<
5983  "ordered comparison between pointer and zero (%0 and %1)">;
5984def ext_typecheck_ordered_comparison_of_function_pointers : ExtWarn<
5985  "ordered comparison of function pointers (%0 and %1)">,
5986  InGroup<DiagGroup<"ordered-compare-function-pointers">>;
5987def ext_typecheck_comparison_of_fptr_to_void : Extension<
5988  "equality comparison between function pointer and void pointer (%0 and %1)">;
5989def err_typecheck_comparison_of_fptr_to_void : Error<
5990  "equality comparison between function pointer and void pointer (%0 and %1)">;
5991def ext_typecheck_comparison_of_pointer_integer : ExtWarn<
5992  "comparison between pointer and integer (%0 and %1)">,
5993  InGroup<DiagGroup<"pointer-integer-compare">>;
5994def err_typecheck_comparison_of_pointer_integer : Error<
5995  "comparison between pointer and integer (%0 and %1)">;
5996def ext_typecheck_comparison_of_distinct_pointers : ExtWarn<
5997  "comparison of distinct pointer types%diff{ ($ and $)|}0,1">,
5998  InGroup<CompareDistinctPointerType>;
5999def ext_typecheck_cond_incompatible_operands : ExtWarn<
6000  "incompatible operand types (%0 and %1)">;
6001def err_cond_voidptr_arc : Error <
6002  "operands to conditional of types%diff{ $ and $|}0,1 are incompatible "
6003  "in ARC mode">;
6004def err_typecheck_comparison_of_distinct_pointers : Error<
6005  "comparison of distinct pointer types%diff{ ($ and $)|}0,1">;
6006def err_typecheck_op_on_nonoverlapping_address_space_pointers : Error<
6007  "%select{comparison between %diff{ ($ and $)|}0,1"
6008  "|arithmetic operation with operands of type %diff{ ($ and $)|}0,1"
6009  "|conditional operator with the second and third operands of type "
6010  "%diff{ ($ and $)|}0,1}2"
6011  " which are pointers to non-overlapping address spaces">;
6012
6013def err_typecheck_assign_const : Error<
6014  "%select{"
6015  "cannot assign to return value because function %1 returns a const value|"
6016  "cannot assign to variable %1 with const-qualified type %2|"
6017  "cannot assign to %select{non-|}1static data member %2 "
6018  "with const-qualified type %3|"
6019  "cannot assign to non-static data member within const member function %1|"
6020  "cannot assign to %select{variable %2|non-static data member %2|lvalue}1 "
6021  "with %select{|nested }3const-qualified data member %4|"
6022  "read-only variable is not assignable}0">;
6023
6024def note_typecheck_assign_const : Note<
6025  "%select{"
6026  "function %1 which returns const-qualified type %2 declared here|"
6027  "variable %1 declared const here|"
6028  "%select{non-|}1static data member %2 declared const here|"
6029  "member function %q1 is declared const here|"
6030  "%select{|nested }1data member %2 declared const here}0">;
6031
6032def warn_unsigned_always_true_comparison : Warning<
6033  "result of comparison of %select{%3|unsigned expression}0 %2 "
6034  "%select{unsigned expression|%3}0 is always %4">,
6035  InGroup<TautologicalUnsignedZeroCompare>, DefaultIgnore;
6036def warn_unsigned_enum_always_true_comparison : Warning<
6037  "result of comparison of %select{%3|unsigned enum expression}0 %2 "
6038  "%select{unsigned enum expression|%3}0 is always %4">,
6039  InGroup<TautologicalUnsignedEnumZeroCompare>, DefaultIgnore;
6040def warn_tautological_constant_compare : Warning<
6041  "result of comparison %select{%3|%1}0 %2 "
6042  "%select{%1|%3}0 is always %4">,
6043  InGroup<TautologicalTypeLimitCompare>, DefaultIgnore;
6044def warn_tautological_compare_objc_bool : Warning<
6045  "result of comparison of constant %0 with expression of type BOOL"
6046  " is always %1, as the only well defined values for BOOL are YES and NO">,
6047  InGroup<TautologicalObjCBoolCompare>;
6048
6049def warn_mixed_sign_comparison : Warning<
6050  "comparison of integers of different signs: %0 and %1">,
6051  InGroup<SignCompare>, DefaultIgnore;
6052def warn_out_of_range_compare : Warning<
6053  "result of comparison of %select{constant %0|true|false}1 with "
6054  "%select{expression of type %2|boolean expression}3 is always %4">,
6055  InGroup<TautologicalOutOfRangeCompare>;
6056def warn_tautological_bool_compare : Warning<warn_out_of_range_compare.Text>,
6057  InGroup<TautologicalConstantCompare>;
6058def warn_comparison_of_mixed_enum_types : Warning<
6059  "comparison of two values with different enumeration types"
6060  "%diff{ ($ and $)|}0,1">,
6061  InGroup<EnumCompare>;
6062def warn_comparison_of_mixed_enum_types_switch : Warning<
6063  "comparison of two values with different enumeration types in switch statement"
6064  "%diff{ ($ and $)|}0,1">,
6065  InGroup<EnumCompareSwitch>;
6066def warn_null_in_arithmetic_operation : Warning<
6067  "use of NULL in arithmetic operation">,
6068  InGroup<NullArithmetic>;
6069def warn_null_in_comparison_operation : Warning<
6070  "comparison between NULL and non-pointer "
6071  "%select{(%1 and NULL)|(NULL and %1)}0">,
6072  InGroup<NullArithmetic>;
6073def err_shift_rhs_only_vector : Error<
6074  "requested shift is a vector of type %0 but the first operand is not a "
6075  "vector (%1)">;
6076
6077def warn_logical_not_on_lhs_of_check : Warning<
6078  "logical not is only applied to the left hand side of this "
6079  "%select{comparison|bitwise operator}0">,
6080  InGroup<LogicalNotParentheses>;
6081def note_logical_not_fix : Note<
6082  "add parentheses after the '!' to evaluate the "
6083  "%select{comparison|bitwise operator}0 first">;
6084def note_logical_not_silence_with_parens : Note<
6085  "add parentheses around left hand side expression to silence this warning">;
6086
6087def err_invalid_this_use : Error<
6088  "invalid use of 'this' outside of a non-static member function">;
6089def err_this_static_member_func : Error<
6090  "'this' cannot be%select{| implicitly}0 used in a static member function "
6091  "declaration">;
6092def err_invalid_member_use_in_static_method : Error<
6093  "invalid use of member %0 in static member function">;
6094def err_invalid_qualified_function_type : Error<
6095  "%select{non-member function|static member function|deduction guide}0 "
6096  "%select{of type %2 |}1cannot have '%3' qualifier">;
6097def err_compound_qualified_function_type : Error<
6098  "%select{block pointer|pointer|reference}0 to function type %select{%2 |}1"
6099  "cannot have '%3' qualifier">;
6100
6101def err_ref_qualifier_overload : Error<
6102  "cannot overload a member function %select{without a ref-qualifier|with "
6103  "ref-qualifier '&'|with ref-qualifier '&&'}0 with a member function %select{"
6104  "without a ref-qualifier|with ref-qualifier '&'|with ref-qualifier '&&'}1">;
6105
6106def err_invalid_non_static_member_use : Error<
6107  "invalid use of non-static data member %0">;
6108def err_nested_non_static_member_use : Error<
6109  "%select{call to non-static member function|use of non-static data member}0 "
6110  "%2 of %1 from nested type %3">;
6111def warn_cxx98_compat_non_static_member_use : Warning<
6112  "use of non-static data member %0 in an unevaluated context is "
6113  "incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
6114def err_invalid_incomplete_type_use : Error<
6115  "invalid use of incomplete type %0">;
6116def err_builtin_func_cast_more_than_one_arg : Error<
6117  "function-style cast to a builtin type can only take one argument">;
6118def err_value_init_for_array_type : Error<
6119  "array types cannot be value-initialized">;
6120def err_init_for_function_type : Error<
6121  "cannot create object of function type %0">;
6122def warn_format_nonliteral_noargs : Warning<
6123  "format string is not a string literal (potentially insecure)">,
6124  InGroup<FormatSecurity>;
6125def warn_format_nonliteral : Warning<
6126  "format string is not a string literal">,
6127  InGroup<FormatNonLiteral>, DefaultIgnore;
6128
6129def err_unexpected_interface : Error<
6130  "unexpected interface name %0: expected expression">;
6131def err_ref_non_value : Error<"%0 does not refer to a value">;
6132def err_ref_vm_type : Error<
6133  "cannot refer to declaration with a variably modified type inside block">;
6134def err_ref_flexarray_type : Error<
6135  "cannot refer to declaration of structure variable with flexible array member "
6136  "inside block">;
6137def err_ref_array_type : Error<
6138  "cannot refer to declaration with an array type inside block">;
6139def err_property_not_found : Error<
6140  "property %0 not found on object of type %1">;
6141def err_invalid_property_name : Error<
6142  "%0 is not a valid property name (accessing an object of type %1)">;
6143def err_getter_not_found : Error<
6144  "no getter method for read from property">;
6145def err_objc_subscript_method_not_found : Error<
6146  "expected method to %select{read|write}1 %select{dictionary|array}2 element not "
6147  "found on object of type %0">;
6148def err_objc_subscript_index_type : Error<
6149  "method index parameter type %0 is not integral type">;
6150def err_objc_subscript_key_type : Error<
6151  "method key parameter type %0 is not object type">;
6152def err_objc_subscript_dic_object_type : Error<
6153  "method object parameter type %0 is not object type">;
6154def err_objc_subscript_object_type : Error<
6155  "cannot assign to this %select{dictionary|array}1 because assigning method's "
6156  "2nd parameter of type %0 is not an Objective-C pointer type">;
6157def err_objc_subscript_base_type : Error<
6158  "%select{dictionary|array}1 subscript base type %0 is not an Objective-C object">;
6159def err_objc_multiple_subscript_type_conversion : Error<
6160  "indexing expression is invalid because subscript type %0 has "
6161  "multiple type conversion functions">;
6162def err_objc_subscript_type_conversion : Error<
6163  "indexing expression is invalid because subscript type %0 is not an integral"
6164  " or Objective-C pointer type">;
6165def err_objc_subscript_pointer : Error<
6166  "indexing expression is invalid because subscript type %0 is not an"
6167  " Objective-C pointer">;
6168def err_objc_indexing_method_result_type : Error<
6169  "method for accessing %select{dictionary|array}1 element must have Objective-C"
6170  " object return type instead of %0">;
6171def err_objc_index_incomplete_class_type : Error<
6172  "Objective-C index expression has incomplete class type %0">;
6173def err_illegal_container_subscripting_op : Error<
6174  "illegal operation on Objective-C container subscripting">;
6175def err_property_not_found_forward_class : Error<
6176  "property %0 cannot be found in forward class object %1">;
6177def err_property_not_as_forward_class : Error<
6178  "property %0 refers to an incomplete Objective-C class %1 "
6179  "(with no @interface available)">;
6180def note_forward_class : Note<
6181  "forward declaration of class here">;
6182def err_duplicate_property : Error<
6183  "property has a previous declaration">;
6184def ext_gnu_void_ptr : Extension<
6185  "arithmetic on%select{ a|}0 pointer%select{|s}0 to void is a GNU extension">,
6186  InGroup<PointerArith>;
6187def ext_gnu_ptr_func_arith : Extension<
6188  "arithmetic on%select{ a|}0 pointer%select{|s}0 to%select{ the|}2 function "
6189  "type%select{|s}2 %1%select{| and %3}2 is a GNU extension">,
6190  InGroup<PointerArith>;
6191def err_readonly_message_assignment : Error<
6192  "assigning to 'readonly' return result of an Objective-C message not allowed">;
6193def ext_integer_increment_complex : Extension<
6194  "ISO C does not support '++'/'--' on complex integer type %0">;
6195def ext_integer_complement_complex : Extension<
6196  "ISO C does not support '~' for complex conjugation of %0">;
6197def err_nosetter_property_assignment : Error<
6198  "%select{assignment to readonly property|"
6199  "no setter method %1 for assignment to property}0">;
6200def err_nosetter_property_incdec : Error<
6201  "%select{%select{increment|decrement}1 of readonly property|"
6202  "no setter method %2 for %select{increment|decrement}1 of property}0">;
6203def err_nogetter_property_compound_assignment : Error<
6204  "a getter method is needed to perform a compound assignment on a property">;
6205def err_nogetter_property_incdec : Error<
6206  "no getter method %1 for %select{increment|decrement}0 of property">;
6207def err_no_subobject_property_setting : Error<
6208  "expression is not assignable">;
6209def err_qualified_objc_access : Error<
6210  "%select{property|instance variable}0 access cannot be qualified with '%1'">;
6211
6212def ext_freestanding_complex : Extension<
6213  "complex numbers are an extension in a freestanding C99 implementation">;
6214
6215// FIXME: Remove when we support imaginary.
6216def err_imaginary_not_supported : Error<"imaginary types are not supported">;
6217
6218// Obj-c expressions
6219def warn_root_inst_method_not_found : Warning<
6220  "instance method %0 is being used on 'Class' which is not in the root class">,
6221  InGroup<MethodAccess>;
6222def warn_class_method_not_found : Warning<
6223  "class method %objcclass0 not found (return type defaults to 'id')">,
6224  InGroup<MethodAccess>;
6225def warn_instance_method_on_class_found : Warning<
6226  "instance method %0 found instead of class method %1">,
6227  InGroup<MethodAccess>;
6228def warn_inst_method_not_found : Warning<
6229  "instance method %objcinstance0 not found (return type defaults to 'id')">,
6230  InGroup<MethodAccess>;
6231def warn_instance_method_not_found_with_typo : Warning<
6232  "instance method %objcinstance0 not found (return type defaults to 'id')"
6233  "; did you mean %objcinstance2?">, InGroup<MethodAccess>;
6234def warn_class_method_not_found_with_typo : Warning<
6235  "class method %objcclass0 not found (return type defaults to 'id')"
6236  "; did you mean %objcclass2?">, InGroup<MethodAccess>;
6237def err_method_not_found_with_typo : Error<
6238  "%select{instance|class}1 method %0 not found "
6239  "; did you mean %2?">;
6240def err_no_super_class_message : Error<
6241  "no @interface declaration found in class messaging of %0">;
6242def err_root_class_cannot_use_super : Error<
6243  "%0 cannot use 'super' because it is a root class">;
6244def err_invalid_receiver_to_message_super : Error<
6245  "'super' is only valid in a method body">;
6246def err_invalid_receiver_class_message : Error<
6247  "receiver type %0 is not an Objective-C class">;
6248def err_missing_open_square_message_send : Error<
6249  "missing '[' at start of message send expression">;
6250def warn_bad_receiver_type : Warning<
6251  "receiver type %0 is not 'id' or interface pointer, consider "
6252  "casting it to 'id'">,InGroup<ObjCReceiver>;
6253def err_bad_receiver_type : Error<"bad receiver type %0">;
6254def err_incomplete_receiver_type : Error<"incomplete receiver type %0">;
6255def err_unknown_receiver_suggest : Error<
6256  "unknown receiver %0; did you mean %1?">;
6257def err_objc_throw_expects_object : Error<
6258  "@throw requires an Objective-C object type (%0 invalid)">;
6259def err_objc_synchronized_expects_object : Error<
6260  "@synchronized requires an Objective-C object type (%0 invalid)">;
6261def err_rethrow_used_outside_catch : Error<
6262  "@throw (rethrow) used outside of a @catch block">;
6263def err_attribute_multiple_objc_gc : Error<
6264  "multiple garbage collection attributes specified for type">;
6265def err_catch_param_not_objc_type : Error<
6266  "@catch parameter is not a pointer to an interface type">;
6267def err_illegal_qualifiers_on_catch_parm : Error<
6268  "illegal qualifiers on @catch parameter">;
6269def err_storage_spec_on_catch_parm : Error<
6270  "@catch parameter cannot have storage specifier '%0'">;
6271def warn_register_objc_catch_parm : Warning<
6272  "'register' storage specifier on @catch parameter will be ignored">;
6273def err_qualified_objc_catch_parm : Error<
6274  "@catch parameter declarator cannot be qualified">;
6275def warn_objc_pointer_cxx_catch_fragile : Warning<
6276  "cannot catch an exception thrown with @throw in C++ in the non-unified "
6277  "exception model">, InGroup<ObjCNonUnifiedException>;
6278def err_objc_object_catch : Error<
6279  "cannot catch an Objective-C object by value">;
6280def err_incomplete_type_objc_at_encode : Error<
6281  "'@encode' of incomplete type %0">;
6282def warn_objc_circular_container : Warning<
6283  "adding %0 to %1 might cause circular dependency in container">,
6284  InGroup<DiagGroup<"objc-circular-container">>;
6285def note_objc_circular_container_declared_here : Note<"%0 declared here">;
6286def warn_objc_unsafe_perform_selector : Warning<
6287  "%0 is incompatible with selectors that return a "
6288  "%select{struct|union|vector}1 type">,
6289  InGroup<DiagGroup<"objc-unsafe-perform-selector">>;
6290def note_objc_unsafe_perform_selector_method_declared_here :  Note<
6291  "method %0 that returns %1 declared here">;
6292
6293def warn_setter_getter_impl_required : Warning<
6294  "property %0 requires method %1 to be defined - "
6295  "use @synthesize, @dynamic or provide a method implementation "
6296  "in this class implementation">,
6297  InGroup<ObjCPropertyImpl>;
6298def warn_setter_getter_impl_required_in_category : Warning<
6299  "property %0 requires method %1 to be defined - "
6300  "use @dynamic or provide a method implementation in this category">,
6301  InGroup<ObjCPropertyImpl>;
6302def note_parameter_named_here : Note<
6303  "passing argument to parameter %0 here">;
6304def note_parameter_here : Note<
6305  "passing argument to parameter here">;
6306def note_method_return_type_change : Note<
6307  "compiler has implicitly changed method %0 return type">;
6308
6309def warn_impl_required_for_class_property : Warning<
6310  "class property %0 requires method %1 to be defined - "
6311  "use @dynamic or provide a method implementation "
6312  "in this class implementation">,
6313  InGroup<ObjCPropertyImpl>;
6314def warn_impl_required_in_category_for_class_property : Warning<
6315  "class property %0 requires method %1 to be defined - "
6316  "use @dynamic or provide a method implementation in this category">,
6317  InGroup<ObjCPropertyImpl>;
6318
6319// C++ casts
6320// These messages adhere to the TryCast pattern: %0 is an int specifying the
6321// cast type, %1 is the source type, %2 is the destination type.
6322def err_bad_reinterpret_cast_overload : Error<
6323  "reinterpret_cast cannot resolve overloaded function %0 to type %1">;
6324
6325def warn_reinterpret_different_from_static : Warning<
6326  "'reinterpret_cast' %select{from|to}3 class %0 %select{to|from}3 its "
6327  "%select{virtual base|base at non-zero offset}2 %1 behaves differently from "
6328  "'static_cast'">, InGroup<ReinterpretBaseClass>;
6329def note_reinterpret_updowncast_use_static: Note<
6330  "use 'static_cast' to adjust the pointer correctly while "
6331  "%select{upcasting|downcasting}0">;
6332
6333def err_bad_static_cast_overload : Error<
6334  "address of overloaded function %0 cannot be static_cast to type %1">;
6335
6336def err_bad_cstyle_cast_overload : Error<
6337  "address of overloaded function %0 cannot be cast to type %1">;
6338
6339
6340def err_bad_cxx_cast_generic : Error<
6341  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6342  "functional-style cast}0 from %1 to %2 is not allowed">;
6343def err_bad_cxx_cast_unrelated_class : Error<
6344  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6345  "functional-style cast}0 from %1 to %2, which are not related by "
6346  "inheritance, is not allowed">;
6347def note_type_incomplete : Note<"%0 is incomplete">;
6348def err_bad_cxx_cast_rvalue : Error<
6349  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6350  "functional-style cast}0 from rvalue to reference type %2">;
6351def err_bad_cxx_cast_bitfield : Error<
6352  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6353  "functional-style cast}0 from bit-field lvalue to reference type %2">;
6354def err_bad_cxx_cast_qualifiers_away : Error<
6355  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6356  "functional-style cast}0 from %1 to %2 casts away qualifiers">;
6357def err_bad_cxx_cast_addr_space_mismatch : Error<
6358  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6359  "functional-style cast}0 from %1 to %2 converts between mismatching address"
6360  " spaces">;
6361def ext_bad_cxx_cast_qualifiers_away_incoherent : ExtWarn<
6362  "ISO C++ does not allow "
6363  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6364  "functional-style cast}0 from %1 to %2 because it casts away qualifiers, "
6365  "even though the source and destination types are unrelated">,
6366  SFINAEFailure, InGroup<DiagGroup<"cast-qual-unrelated">>;
6367def err_bad_const_cast_dest : Error<
6368  "%select{const_cast||||C-style cast|functional-style cast}0 to %2, "
6369  "which is not a reference, pointer-to-object, or pointer-to-data-member">;
6370def ext_cast_fn_obj : Extension<
6371  "cast between pointer-to-function and pointer-to-object is an extension">;
6372def ext_ms_cast_fn_obj : ExtWarn<
6373  "static_cast between pointer-to-function and pointer-to-object is a "
6374  "Microsoft extension">, InGroup<MicrosoftCast>;
6375def warn_cxx98_compat_cast_fn_obj : Warning<
6376  "cast between pointer-to-function and pointer-to-object is incompatible with C++98">,
6377  InGroup<CXX98CompatPedantic>, DefaultIgnore;
6378def err_bad_reinterpret_cast_small_int : Error<
6379  "cast from pointer to smaller type %2 loses information">;
6380def err_bad_cxx_cast_vector_to_scalar_different_size : Error<
6381  "%select{||reinterpret_cast||C-style cast|}0 from vector %1 "
6382  "to scalar %2 of different size">;
6383def err_bad_cxx_cast_scalar_to_vector_different_size : Error<
6384  "%select{||reinterpret_cast||C-style cast|}0 from scalar %1 "
6385  "to vector %2 of different size">;
6386def err_bad_cxx_cast_vector_to_vector_different_size : Error<
6387  "%select{||reinterpret_cast||C-style cast|}0 from vector %1 "
6388  "to vector %2 of different size">;
6389def err_bad_lvalue_to_rvalue_cast : Error<
6390  "cannot cast from lvalue of type %1 to rvalue reference type %2; types are "
6391  "not compatible">;
6392def err_bad_rvalue_to_rvalue_cast : Error<
6393  "cannot cast from rvalue of type %1 to rvalue reference type %2; types are "
6394  "not compatible">;
6395def err_bad_static_cast_pointer_nonpointer : Error<
6396  "cannot cast from type %1 to pointer type %2">;
6397def err_bad_static_cast_member_pointer_nonmp : Error<
6398  "cannot cast from type %1 to member pointer type %2">;
6399def err_bad_cxx_cast_member_pointer_size : Error<
6400  "cannot %select{||reinterpret_cast||C-style cast|}0 from member pointer "
6401  "type %1 to member pointer type %2 of different size">;
6402def err_bad_reinterpret_cast_reference : Error<
6403  "reinterpret_cast of a %0 to %1 needs its address, which is not allowed">;
6404def warn_undefined_reinterpret_cast : Warning<
6405  "reinterpret_cast from %0 to %1 has undefined behavior">,
6406  InGroup<UndefinedReinterpretCast>, DefaultIgnore;
6407
6408// These messages don't adhere to the pattern.
6409// FIXME: Display the path somehow better.
6410def err_ambiguous_base_to_derived_cast : Error<
6411  "ambiguous cast from base %0 to derived %1:%2">;
6412def err_static_downcast_via_virtual : Error<
6413  "cannot cast %0 to %1 via virtual base %2">;
6414def err_downcast_from_inaccessible_base : Error<
6415  "cannot cast %select{private|protected}2 base class %1 to %0">;
6416def err_upcast_to_inaccessible_base : Error<
6417  "cannot cast %0 to its %select{private|protected}2 base class %1">;
6418def err_bad_dynamic_cast_not_ref_or_ptr : Error<
6419  "%0 is not a reference or pointer">;
6420def err_bad_dynamic_cast_not_class : Error<"%0 is not a class">;
6421def err_bad_dynamic_cast_incomplete : Error<"%0 is an incomplete type">;
6422def err_bad_dynamic_cast_not_ptr : Error<"%0 is not a pointer">;
6423def err_bad_dynamic_cast_not_polymorphic : Error<"%0 is not polymorphic">;
6424
6425// Other C++ expressions
6426def err_need_header_before_typeid : Error<
6427  "you need to include <typeinfo> before using the 'typeid' operator">;
6428def err_need_header_before_ms_uuidof : Error<
6429  "you need to include <guiddef.h> before using the '__uuidof' operator">;
6430def err_ms___leave_not_in___try : Error<
6431  "'__leave' statement not in __try block">;
6432def err_uuidof_without_guid : Error<
6433  "cannot call operator __uuidof on a type with no GUID">;
6434def err_uuidof_with_multiple_guids : Error<
6435  "cannot call operator __uuidof on a type with multiple GUIDs">;
6436def err_incomplete_typeid : Error<"'typeid' of incomplete type %0">;
6437def err_variably_modified_typeid : Error<"'typeid' of variably modified type %0">;
6438def err_static_illegal_in_new : Error<
6439  "the 'static' modifier for the array size is not legal in new expressions">;
6440def err_array_new_needs_size : Error<
6441  "array size must be specified in new expression with no initializer">;
6442def err_bad_new_type : Error<
6443  "cannot allocate %select{function|reference}1 type %0 with new">;
6444def err_new_incomplete_type : Error<
6445  "allocation of incomplete type %0">;
6446def err_new_array_nonconst : Error<
6447  "only the first dimension of an allocated array may have dynamic size">;
6448def err_new_array_size_unknown_from_init : Error<
6449  "cannot determine allocated array size from initializer">;
6450def err_new_array_init_args : Error<
6451  "array 'new' cannot have initialization arguments">;
6452def ext_new_paren_array_nonconst : ExtWarn<
6453  "when type is in parentheses, array cannot have dynamic size">;
6454def err_placement_new_non_placement_delete : Error<
6455  "'new' expression with placement arguments refers to non-placement "
6456  "'operator delete'">;
6457def err_array_size_not_integral : Error<
6458  "array size expression must have integral or %select{|unscoped }0"
6459  "enumeration type, not %1">;
6460def err_array_size_incomplete_type : Error<
6461  "array size expression has incomplete class type %0">;
6462def err_array_size_explicit_conversion : Error<
6463  "array size expression of type %0 requires explicit conversion to type %1">;
6464def note_array_size_conversion : Note<
6465  "conversion to %select{integral|enumeration}0 type %1 declared here">;
6466def err_array_size_ambiguous_conversion : Error<
6467  "ambiguous conversion of array size expression of type %0 to an integral or "
6468  "enumeration type">;
6469def ext_array_size_conversion : Extension<
6470  "implicit conversion from array size expression of type %0 to "
6471  "%select{integral|enumeration}1 type %2 is a C++11 extension">,
6472  InGroup<CXX11>;
6473def warn_cxx98_compat_array_size_conversion : Warning<
6474  "implicit conversion from array size expression of type %0 to "
6475  "%select{integral|enumeration}1 type %2 is incompatible with C++98">,
6476  InGroup<CXX98CompatPedantic>, DefaultIgnore;
6477def err_address_space_qualified_new : Error<
6478  "'new' cannot allocate objects of type %0 in address space '%1'">;
6479def err_address_space_qualified_delete : Error<
6480  "'delete' cannot delete objects of type %0 in address space '%1'">;
6481
6482def err_default_init_const : Error<
6483  "default initialization of an object of const type %0"
6484  "%select{| without a user-provided default constructor}1">;
6485def ext_default_init_const : ExtWarn<
6486  "default initialization of an object of const type %0"
6487  "%select{| without a user-provided default constructor}1 "
6488  "is a Microsoft extension">,
6489  InGroup<MicrosoftConstInit>;
6490def err_delete_operand : Error<"cannot delete expression of type %0">;
6491def ext_delete_void_ptr_operand : ExtWarn<
6492  "cannot delete expression with pointer-to-'void' type %0">,
6493  InGroup<DeleteIncomplete>;
6494def err_ambiguous_delete_operand : Error<
6495  "ambiguous conversion of delete expression of type %0 to a pointer">;
6496def warn_delete_incomplete : Warning<
6497  "deleting pointer to incomplete type %0 may cause undefined behavior">,
6498  InGroup<DeleteIncomplete>;
6499def err_delete_incomplete_class_type : Error<
6500  "deleting incomplete class type %0; no conversions to pointer type">;
6501def err_delete_explicit_conversion : Error<
6502  "converting delete expression from type %0 to type %1 invokes an explicit "
6503  "conversion function">;
6504def note_delete_conversion : Note<"conversion to pointer type %0">;
6505def warn_delete_array_type : Warning<
6506  "'delete' applied to a pointer-to-array type %0 treated as 'delete[]'">;
6507def warn_mismatched_delete_new : Warning<
6508  "'delete%select{|[]}0' applied to a pointer that was allocated with "
6509  "'new%select{[]|}0'; did you mean 'delete%select{[]|}0'?">,
6510  InGroup<DiagGroup<"mismatched-new-delete">>;
6511def note_allocated_here : Note<"allocated with 'new%select{[]|}0' here">;
6512def err_no_suitable_delete_member_function_found : Error<
6513  "no suitable member %0 in %1">;
6514def err_ambiguous_suitable_delete_member_function_found : Error<
6515  "multiple suitable %0 functions in %1">;
6516def warn_ambiguous_suitable_delete_function_found : Warning<
6517  "multiple suitable %0 functions for %1; no 'operator delete' function "
6518  "will be invoked if initialization throws an exception">,
6519  InGroup<DiagGroup<"ambiguous-delete">>;
6520def note_member_declared_here : Note<
6521  "member %0 declared here">;
6522def note_member_first_declared_here : Note<
6523  "member %0 first declared here">;
6524def err_decrement_bool : Error<"cannot decrement expression of type bool">;
6525def warn_increment_bool : Warning<
6526  "incrementing expression of type bool is deprecated and "
6527  "incompatible with C++17">, InGroup<DeprecatedIncrementBool>;
6528def ext_increment_bool : ExtWarn<
6529  "ISO C++17 does not allow incrementing expression of type bool">,
6530  DefaultError, InGroup<IncrementBool>;
6531def err_increment_decrement_enum : Error<
6532  "cannot %select{decrement|increment}0 expression of enum type %1">;
6533def err_catch_incomplete_ptr : Error<
6534  "cannot catch pointer to incomplete type %0">;
6535def err_catch_incomplete_ref : Error<
6536  "cannot catch reference to incomplete type %0">;
6537def err_catch_incomplete : Error<"cannot catch incomplete type %0">;
6538def err_catch_rvalue_ref : Error<"cannot catch exceptions by rvalue reference">;
6539def err_catch_variably_modified : Error<
6540  "cannot catch variably modified type %0">;
6541def err_qualified_catch_declarator : Error<
6542  "exception declarator cannot be qualified">;
6543def err_early_catch_all : Error<"catch-all handler must come last">;
6544def err_bad_memptr_rhs : Error<
6545  "right hand operand to %0 has non-pointer-to-member type %1">;
6546def err_bad_memptr_lhs : Error<
6547  "left hand operand to %0 must be a %select{|pointer to }1class "
6548  "compatible with the right hand operand, but is %2">;
6549def err_memptr_incomplete : Error<
6550  "member pointer has incomplete base type %0">;
6551def warn_exception_caught_by_earlier_handler : Warning<
6552  "exception of type %0 will be caught by earlier handler">,
6553  InGroup<Exceptions>;
6554def note_previous_exception_handler : Note<"for type %0">;
6555def err_exceptions_disabled : Error<
6556  "cannot use '%0' with exceptions disabled">;
6557def err_objc_exceptions_disabled : Error<
6558  "cannot use '%0' with Objective-C exceptions disabled">;
6559def warn_throw_in_noexcept_func : Warning<
6560  "%0 has a non-throwing exception specification but can still throw">,
6561  InGroup<Exceptions>;
6562def note_throw_in_dtor : Note<
6563  "%select{destructor|deallocator}0 has a %select{non-throwing|implicit "
6564  "non-throwing}1 exception specification">;
6565def note_throw_in_function : Note<"function declared non-throwing here">;
6566def err_seh_try_outside_functions : Error<
6567  "cannot use SEH '__try' in blocks, captured regions, or Obj-C method decls">;
6568def err_mixing_cxx_try_seh_try : Error<
6569  "cannot use C++ 'try' in the same function as SEH '__try'">;
6570def err_seh_try_unsupported : Error<
6571  "SEH '__try' is not supported on this target">;
6572def note_conflicting_try_here : Note<
6573  "conflicting %0 here">;
6574def warn_jump_out_of_seh_finally : Warning<
6575  "jump out of __finally block has undefined behavior">,
6576  InGroup<DiagGroup<"jump-seh-finally">>;
6577def warn_non_virtual_dtor : Warning<
6578  "%0 has virtual functions but non-virtual destructor">,
6579  InGroup<NonVirtualDtor>, DefaultIgnore;
6580def warn_delete_non_virtual_dtor : Warning<
6581  "%select{delete|destructor}0 called on non-final %1 that has "
6582  "virtual functions but non-virtual destructor">,
6583  InGroup<DeleteNonAbstractNonVirtualDtor>, DefaultIgnore, ShowInSystemHeader;
6584def note_delete_non_virtual : Note<
6585  "qualify call to silence this warning">;
6586def warn_delete_abstract_non_virtual_dtor : Warning<
6587  "%select{delete|destructor}0 called on %1 that is abstract but has "
6588  "non-virtual destructor">, InGroup<DeleteAbstractNonVirtualDtor>, ShowInSystemHeader;
6589def warn_overloaded_virtual : Warning<
6590  "%q0 hides overloaded virtual %select{function|functions}1">,
6591  InGroup<OverloadedVirtual>, DefaultIgnore;
6592def note_hidden_overloaded_virtual_declared_here : Note<
6593  "hidden overloaded virtual function %q0 declared here"
6594  "%select{|: different classes%diff{ ($ vs $)|}2,3"
6595  "|: different number of parameters (%2 vs %3)"
6596  "|: type mismatch at %ordinal2 parameter%diff{ ($ vs $)|}3,4"
6597  "|: different return type%diff{ ($ vs $)|}2,3"
6598  "|: different qualifiers (%2 vs %3)"
6599  "|: different exception specifications}1">;
6600def warn_using_directive_in_header : Warning<
6601  "using namespace directive in global context in header">,
6602  InGroup<HeaderHygiene>, DefaultIgnore;
6603def warn_overaligned_type : Warning<
6604  "type %0 requires %1 bytes of alignment and the default allocator only "
6605  "guarantees %2 bytes">,
6606  InGroup<OveralignedType>, DefaultIgnore;
6607def err_aligned_allocation_unavailable : Error<
6608  "aligned %select{allocation|deallocation}0 function of type '%1' is only "
6609  "available on %2 %3 or newer">;
6610def note_silence_aligned_allocation_unavailable : Note<
6611  "if you supply your own aligned allocation functions, use "
6612  "-faligned-allocation to silence this diagnostic">;
6613
6614def err_conditional_void_nonvoid : Error<
6615  "%select{left|right}1 operand to ? is void, but %select{right|left}1 operand "
6616  "is of type %0">;
6617def err_conditional_ambiguous : Error<
6618  "conditional expression is ambiguous; "
6619  "%diff{$ can be converted to $ and vice versa|"
6620  "types can be convert to each other}0,1">;
6621def err_conditional_ambiguous_ovl : Error<
6622  "conditional expression is ambiguous; %diff{$ and $|types}0,1 "
6623  "can be converted to several common types">;
6624def err_conditional_vector_size : Error<
6625  "vector condition type %0 and result type %1 do not have the same number "
6626  "of elements">;
6627def err_conditional_vector_element_size : Error<
6628  "vector condition type %0 and result type %1 do not have elements of the "
6629  "same size">;
6630
6631def err_throw_incomplete : Error<
6632  "cannot throw object of incomplete type %0">;
6633def err_throw_incomplete_ptr : Error<
6634  "cannot throw pointer to object of incomplete type %0">;
6635def warn_throw_underaligned_obj : Warning<
6636  "underaligned exception object thrown">,
6637  InGroup<UnderalignedExceptionObject>;
6638def note_throw_underaligned_obj : Note<
6639  "required alignment of type %0 (%1 bytes) is larger than the supported "
6640  "alignment of C++ exception objects on this target (%2 bytes)">;
6641def err_return_in_constructor_handler : Error<
6642  "return in the catch of a function try block of a constructor is illegal">;
6643def warn_cdtor_function_try_handler_mem_expr : Warning<
6644  "cannot refer to a non-static member from the handler of a "
6645  "%select{constructor|destructor}0 function try block">, InGroup<Exceptions>;
6646
6647let CategoryName = "Lambda Issue" in {
6648  def err_capture_more_than_once : Error<
6649    "%0 can appear only once in a capture list">;
6650  def err_reference_capture_with_reference_default : Error<
6651    "'&' cannot precede a capture when the capture default is '&'">;
6652  def err_copy_capture_with_copy_default : Error<
6653    "'&' must precede a capture when the capture default is '='">;
6654  def err_capture_does_not_name_variable : Error<
6655    "%0 in capture list does not name a variable">;
6656  def err_capture_non_automatic_variable : Error<
6657    "%0 cannot be captured because it does not have automatic storage "
6658    "duration">;
6659  def err_this_capture : Error<
6660    "'this' cannot be %select{implicitly |}0captured in this context">;
6661  def err_lambda_capture_anonymous_var : Error<
6662    "unnamed variable cannot be implicitly captured in a lambda expression">;
6663  def err_lambda_capture_flexarray_type : Error<
6664    "variable %0 with flexible array member cannot be captured in "
6665    "a lambda expression">;
6666  def err_lambda_impcap : Error<
6667    "variable %0 cannot be implicitly captured in a lambda with no "
6668    "capture-default specified">;
6669  def note_lambda_decl : Note<"lambda expression begins here">;
6670  def err_lambda_unevaluated_operand : Error<
6671    "lambda expression in an unevaluated operand">;
6672  def err_lambda_in_constant_expression : Error<
6673    "a lambda expression may not appear inside of a constant expression">;
6674  def err_lambda_in_invalid_context : Error<
6675    "a lambda expression cannot appear in this context">;
6676  def err_lambda_return_init_list : Error<
6677    "cannot deduce lambda return type from initializer list">;
6678  def err_lambda_capture_default_arg : Error<
6679    "lambda expression in default argument cannot capture any entity">;
6680  def err_lambda_incomplete_result : Error<
6681    "incomplete result type %0 in lambda expression">;
6682  def err_noreturn_lambda_has_return_expr : Error<
6683    "lambda declared 'noreturn' should not return">;
6684  def warn_maybe_falloff_nonvoid_lambda : Warning<
6685    "control may reach end of non-void lambda">,
6686    InGroup<ReturnType>;
6687  def warn_falloff_nonvoid_lambda : Warning<
6688    "control reaches end of non-void lambda">,
6689    InGroup<ReturnType>;
6690  def err_access_lambda_capture : Error<
6691    // The ERRORs represent other special members that aren't constructors, in
6692    // hopes that someone will bother noticing and reporting if they appear
6693    "capture of variable '%0' as type %1 calls %select{private|protected}3 "
6694    "%select{default |copy |move |*ERROR* |*ERROR* |*ERROR* |}2constructor">,
6695    AccessControl;
6696  def note_lambda_to_block_conv : Note<
6697    "implicit capture of lambda object due to conversion to block pointer "
6698    "here">;
6699  def note_var_explicitly_captured_here : Note<"variable %0 is"
6700    "%select{| explicitly}1 captured here">;
6701
6702  // C++14 lambda init-captures.
6703  def warn_cxx11_compat_init_capture : Warning<
6704    "initialized lambda captures are incompatible with C++ standards "
6705    "before C++14">, InGroup<CXXPre14Compat>, DefaultIgnore;
6706  def ext_init_capture : ExtWarn<
6707    "initialized lambda captures are a C++14 extension">, InGroup<CXX14>;
6708  def err_init_capture_no_expression : Error<
6709    "initializer missing for lambda capture %0">;
6710  def err_init_capture_multiple_expressions : Error<
6711    "initializer for lambda capture %0 contains multiple expressions">;
6712  def err_init_capture_paren_braces : Error<
6713    "cannot deduce type for lambda capture %1 from "
6714    "%select{parenthesized|nested}0 initializer list">;
6715  def err_init_capture_deduction_failure : Error<
6716    "cannot deduce type for lambda capture %0 from initializer of type %2">;
6717  def err_init_capture_deduction_failure_from_init_list : Error<
6718    "cannot deduce type for lambda capture %0 from initializer list">;
6719  def warn_cxx17_compat_init_capture_pack : Warning<
6720    "initialized lambda capture packs are incompatible with C++ standards "
6721    "before C++2a">, InGroup<CXXPre2aCompat>, DefaultIgnore;
6722  def ext_init_capture_pack : ExtWarn<
6723    "initialized lambda pack captures are a C++2a extension">, InGroup<CXX2a>;
6724
6725  // C++14 generic lambdas.
6726  def warn_cxx11_compat_generic_lambda : Warning<
6727    "generic lambdas are incompatible with C++11">,
6728    InGroup<CXXPre14Compat>, DefaultIgnore;
6729
6730  // C++17 '*this' captures.
6731  def warn_cxx14_compat_star_this_lambda_capture : Warning<
6732    "by value capture of '*this' is incompatible with C++ standards before C++17">,
6733     InGroup<CXXPre17Compat>, DefaultIgnore;
6734  def ext_star_this_lambda_capture_cxx17 : ExtWarn<
6735    "capture of '*this' by copy is a C++17 extension">, InGroup<CXX17>;
6736
6737  // C++17 parameter shadows capture
6738  def err_parameter_shadow_capture : Error<
6739    "a lambda parameter cannot shadow an explicitly captured entity">;
6740
6741  // C++2a [=, this] captures.
6742  def warn_cxx17_compat_equals_this_lambda_capture : Warning<
6743    "explicit capture of 'this' with a capture default of '=' is incompatible "
6744    "with C++ standards before C++2a">, InGroup<CXXPre2aCompat>, DefaultIgnore;
6745  def ext_equals_this_lambda_capture_cxx2a : ExtWarn<
6746    "explicit capture of 'this' with a capture default of '=' "
6747    "is a C++2a extension">, InGroup<CXX2a>;
6748  def warn_deprecated_this_capture : Warning<
6749    "implicit capture of 'this' with a capture default of '=' is deprecated">,
6750    InGroup<DeprecatedThisCapture>, DefaultIgnore;
6751  def note_deprecated_this_capture : Note<
6752    "add an explicit capture of 'this' to capture '*this' by reference">;
6753
6754  // C++2a default constructible / assignable lambdas.
6755  def warn_cxx17_compat_lambda_def_ctor_assign : Warning<
6756    "%select{default construction|assignment}0 of lambda is incompatible with "
6757    "C++ standards before C++2a">, InGroup<CXXPre2aCompat>, DefaultIgnore;
6758}
6759
6760def err_return_in_captured_stmt : Error<
6761  "cannot return from %0">;
6762def err_capture_block_variable : Error<
6763  "__block variable %0 cannot be captured in a "
6764  "%select{lambda expression|captured statement}1">;
6765
6766def err_operator_arrow_circular : Error<
6767  "circular pointer delegation detected">;
6768def err_operator_arrow_depth_exceeded : Error<
6769  "use of 'operator->' on type %0 would invoke a sequence of more than %1 "
6770  "'operator->' calls">;
6771def note_operator_arrow_here : Note<
6772  "'operator->' declared here produces an object of type %0">;
6773def note_operator_arrows_suppressed : Note<
6774  "(skipping %0 'operator->'%s0 in backtrace)">;
6775def note_operator_arrow_depth : Note<
6776  "use -foperator-arrow-depth=N to increase 'operator->' limit">;
6777
6778def err_pseudo_dtor_base_not_scalar : Error<
6779  "object expression of non-scalar type %0 cannot be used in a "
6780  "pseudo-destructor expression">;
6781def ext_pseudo_dtor_on_void : ExtWarn<
6782  "pseudo-destructors on type void are a Microsoft extension">,
6783  InGroup<MicrosoftVoidPseudoDtor>;
6784def err_pseudo_dtor_type_mismatch : Error<
6785  "the type of object expression "
6786  "%diff{($) does not match the type being destroyed ($)|"
6787  "does not match the type being destroyed}0,1 "
6788  "in pseudo-destructor expression">;
6789def err_pseudo_dtor_call_with_args : Error<
6790  "call to pseudo-destructor cannot have any arguments">;
6791def err_dtor_expr_without_call : Error<
6792  "reference to %select{destructor|pseudo-destructor}0 must be called"
6793  "%select{|; did you mean to call it with no arguments?}1">;
6794def err_pseudo_dtor_destructor_non_type : Error<
6795  "%0 does not refer to a type name in pseudo-destructor expression; expected "
6796  "the name of type %1">;
6797def err_invalid_use_of_function_type : Error<
6798  "a function type is not allowed here">;
6799def err_invalid_use_of_array_type : Error<"an array type is not allowed here">;
6800def err_typecheck_bool_condition : Error<
6801  "value of type %0 is not contextually convertible to 'bool'">;
6802def err_typecheck_ambiguous_condition : Error<
6803  "conversion %diff{from $ to $|between types}0,1 is ambiguous">;
6804def err_typecheck_nonviable_condition : Error<
6805  "no viable conversion%select{%diff{ from $ to $|}1,2|"
6806  "%diff{ from returned value of type $ to function return type $|}1,2}0">;
6807def err_typecheck_nonviable_condition_incomplete : Error<
6808  "no viable conversion%diff{ from $ to incomplete type $|}0,1">;
6809def err_typecheck_deleted_function : Error<
6810  "conversion function %diff{from $ to $|between types}0,1 "
6811  "invokes a deleted function">;
6812
6813def err_expected_class_or_namespace : Error<"%0 is not a class"
6814  "%select{ or namespace|, namespace, or enumeration}1">;
6815def err_invalid_declarator_scope : Error<"cannot define or redeclare %0 here "
6816  "because namespace %1 does not enclose namespace %2">;
6817def err_invalid_declarator_global_scope : Error<
6818  "definition or redeclaration of %0 cannot name the global scope">;
6819def err_invalid_declarator_in_function : Error<
6820  "definition or redeclaration of %0 not allowed inside a function">;
6821def err_invalid_declarator_in_block : Error<
6822  "definition or redeclaration of %0 not allowed inside a block">;
6823def err_not_tag_in_scope : Error<
6824  "no %select{struct|interface|union|class|enum}0 named %1 in %2">;
6825
6826def err_no_typeid_with_fno_rtti : Error<
6827  "use of typeid requires -frtti">;
6828def err_no_dynamic_cast_with_fno_rtti : Error<
6829  "use of dynamic_cast requires -frtti">;
6830
6831def err_cannot_form_pointer_to_member_of_reference_type : Error<
6832  "cannot form a pointer-to-member to member %0 of reference type %1">;
6833def err_incomplete_object_call : Error<
6834  "incomplete type in call to object of type %0">;
6835
6836def warn_condition_is_assignment : Warning<"using the result of an "
6837  "assignment as a condition without parentheses">,
6838  InGroup<Parentheses>;
6839// Completely identical except off by default.
6840def warn_condition_is_idiomatic_assignment : Warning<"using the result "
6841  "of an assignment as a condition without parentheses">,
6842  InGroup<DiagGroup<"idiomatic-parentheses">>, DefaultIgnore;
6843def note_condition_assign_to_comparison : Note<
6844  "use '==' to turn this assignment into an equality comparison">;
6845def note_condition_or_assign_to_comparison : Note<
6846  "use '!=' to turn this compound assignment into an inequality comparison">;
6847def note_condition_assign_silence : Note<
6848  "place parentheses around the assignment to silence this warning">;
6849
6850def warn_equality_with_extra_parens : Warning<"equality comparison with "
6851  "extraneous parentheses">, InGroup<ParenthesesOnEquality>;
6852def note_equality_comparison_to_assign : Note<
6853  "use '=' to turn this equality comparison into an assignment">;
6854def note_equality_comparison_silence : Note<
6855  "remove extraneous parentheses around the comparison to silence this warning">;
6856
6857// assignment related diagnostics (also for argument passing, returning, etc).
6858// In most of these diagnostics the %2 is a value from the
6859// Sema::AssignmentAction enumeration
6860def err_typecheck_convert_incompatible : Error<
6861  "%select{%diff{assigning to $ from incompatible type $|"
6862  "assigning to type from incompatible type}0,1"
6863  "|%diff{passing $ to parameter of incompatible type $|"
6864  "passing type to parameter of incompatible type}0,1"
6865  "|%diff{returning $ from a function with incompatible result type $|"
6866  "returning type from a function with incompatible result type}0,1"
6867  "|%diff{converting $ to incompatible type $|"
6868  "converting type to incompatible type}0,1"
6869  "|%diff{initializing $ with an expression of incompatible type $|"
6870  "initializing type with an expression of incompatible type}0,1"
6871  "|%diff{sending $ to parameter of incompatible type $|"
6872  "sending type to parameter of incompatible type}0,1"
6873  "|%diff{casting $ to incompatible type $|"
6874  "casting type to incompatible type}0,1}2"
6875  "%select{|; dereference with *|"
6876  "; take the address with &|"
6877  "; remove *|"
6878  "; remove &}3"
6879  "%select{|: different classes%diff{ ($ vs $)|}5,6"
6880  "|: different number of parameters (%5 vs %6)"
6881  "|: type mismatch at %ordinal5 parameter%diff{ ($ vs $)|}6,7"
6882  "|: different return type%diff{ ($ vs $)|}5,6"
6883  "|: different qualifiers (%5 vs %6)"
6884  "|: different exception specifications}4">;
6885def err_typecheck_missing_return_type_incompatible : Error<
6886  "%diff{return type $ must match previous return type $|"
6887  "return type must match previous return type}0,1 when %select{block "
6888  "literal|lambda expression}2 has unspecified explicit return type">;
6889
6890def note_incomplete_class_and_qualified_id : Note<
6891  "conformance of forward class %0 to protocol %1 can not be confirmed">;
6892def warn_incompatible_qualified_id : Warning<
6893  "%select{%diff{assigning to $ from incompatible type $|"
6894  "assigning to type from incompatible type}0,1"
6895  "|%diff{passing $ to parameter of incompatible type $|"
6896  "passing type to parameter of incompatible type}0,1"
6897  "|%diff{returning $ from a function with incompatible result type $|"
6898  "returning type from a function with incompatible result type}0,1"
6899  "|%diff{converting $ to incompatible type $|"
6900  "converting type to incompatible type}0,1"
6901  "|%diff{initializing $ with an expression of incompatible type $|"
6902  "initializing type with an expression of incompatible type}0,1"
6903  "|%diff{sending $ to parameter of incompatible type $|"
6904  "sending type to parameter of incompatible type}0,1"
6905  "|%diff{casting $ to incompatible type $|"
6906  "casting type to incompatible type}0,1}2">;
6907def ext_typecheck_convert_pointer_int : ExtWarn<
6908  "incompatible pointer to integer conversion "
6909  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
6910  "|%diff{passing $ to parameter of type $|"
6911  "passing to parameter of different type}0,1"
6912  "|%diff{returning $ from a function with result type $|"
6913  "returning from function with different return type}0,1"
6914  "|%diff{converting $ to type $|converting between types}0,1"
6915  "|%diff{initializing $ with an expression of type $|"
6916  "initializing with expression of different type}0,1"
6917  "|%diff{sending $ to parameter of type $|"
6918  "sending to parameter of different type}0,1"
6919  "|%diff{casting $ to type $|casting between types}0,1}2"
6920  "%select{|; dereference with *|"
6921  "; take the address with &|"
6922  "; remove *|"
6923  "; remove &}3">,
6924  InGroup<IntConversion>;
6925def ext_typecheck_convert_int_pointer : ExtWarn<
6926  "incompatible integer to pointer conversion "
6927  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
6928  "|%diff{passing $ to parameter of type $|"
6929  "passing to parameter of different type}0,1"
6930  "|%diff{returning $ from a function with result type $|"
6931  "returning from function with different return type}0,1"
6932  "|%diff{converting $ to type $|converting between types}0,1"
6933  "|%diff{initializing $ with an expression of type $|"
6934  "initializing with expression of different type}0,1"
6935  "|%diff{sending $ to parameter of type $|"
6936  "sending to parameter of different type}0,1"
6937  "|%diff{casting $ to type $|casting between types}0,1}2"
6938  "%select{|; dereference with *|"
6939  "; take the address with &|"
6940  "; remove *|"
6941  "; remove &}3">,
6942  InGroup<IntConversion>, SFINAEFailure;
6943def ext_typecheck_convert_pointer_void_func : Extension<
6944  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
6945  "|%diff{passing $ to parameter of type $|"
6946  "passing to parameter of different type}0,1"
6947  "|%diff{returning $ from a function with result type $|"
6948  "returning from function with different return type}0,1"
6949  "|%diff{converting $ to type $|converting between types}0,1"
6950  "|%diff{initializing $ with an expression of type $|"
6951  "initializing with expression of different type}0,1"
6952  "|%diff{sending $ to parameter of type $|"
6953  "sending to parameter of different type}0,1"
6954  "|%diff{casting $ to type $|casting between types}0,1}2"
6955  " converts between void pointer and function pointer">;
6956def ext_typecheck_convert_incompatible_pointer_sign : ExtWarn<
6957  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
6958  "|%diff{passing $ to parameter of type $|"
6959  "passing to parameter of different type}0,1"
6960  "|%diff{returning $ from a function with result type $|"
6961  "returning from function with different return type}0,1"
6962  "|%diff{converting $ to type $|converting between types}0,1"
6963  "|%diff{initializing $ with an expression of type $|"
6964  "initializing with expression of different type}0,1"
6965  "|%diff{sending $ to parameter of type $|"
6966  "sending to parameter of different type}0,1"
6967  "|%diff{casting $ to type $|casting between types}0,1}2"
6968  " converts between pointers to integer types with different sign">,
6969  InGroup<DiagGroup<"pointer-sign">>;
6970def ext_typecheck_convert_incompatible_pointer : ExtWarn<
6971  "incompatible pointer types "
6972  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
6973  "|%diff{passing $ to parameter of type $|"
6974  "passing to parameter of different type}0,1"
6975  "|%diff{returning $ from a function with result type $|"
6976  "returning from function with different return type}0,1"
6977  "|%diff{converting $ to type $|converting between types}0,1"
6978  "|%diff{initializing $ with an expression of type $|"
6979  "initializing with expression of different type}0,1"
6980  "|%diff{sending $ to parameter of type $|"
6981  "sending to parameter of different type}0,1"
6982  "|%diff{casting $ to type $|casting between types}0,1}2"
6983  "%select{|; dereference with *|"
6984  "; take the address with &|"
6985  "; remove *|"
6986  "; remove &}3">,
6987  InGroup<IncompatiblePointerTypes>;
6988def ext_typecheck_convert_incompatible_function_pointer : ExtWarn<
6989  "incompatible function pointer types "
6990  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
6991  "|%diff{passing $ to parameter of type $|"
6992  "passing to parameter of different type}0,1"
6993  "|%diff{returning $ from a function with result type $|"
6994  "returning from function with different return type}0,1"
6995  "|%diff{converting $ to type $|converting between types}0,1"
6996  "|%diff{initializing $ with an expression of type $|"
6997  "initializing with expression of different type}0,1"
6998  "|%diff{sending $ to parameter of type $|"
6999  "sending to parameter of different type}0,1"
7000  "|%diff{casting $ to type $|casting between types}0,1}2"
7001  "%select{|; dereference with *|"
7002  "; take the address with &|"
7003  "; remove *|"
7004  "; remove &}3">,
7005  InGroup<IncompatibleFunctionPointerTypes>;
7006def ext_typecheck_convert_discards_qualifiers : ExtWarn<
7007  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7008  "|%diff{passing $ to parameter of type $|"
7009  "passing to parameter of different type}0,1"
7010  "|%diff{returning $ from a function with result type $|"
7011  "returning from function with different return type}0,1"
7012  "|%diff{converting $ to type $|converting between types}0,1"
7013  "|%diff{initializing $ with an expression of type $|"
7014  "initializing with expression of different type}0,1"
7015  "|%diff{sending $ to parameter of type $|"
7016  "sending to parameter of different type}0,1"
7017  "|%diff{casting $ to type $|casting between types}0,1}2"
7018  " discards qualifiers">,
7019  InGroup<IncompatiblePointerTypesDiscardsQualifiers>;
7020def ext_nested_pointer_qualifier_mismatch : ExtWarn<
7021  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7022  "|%diff{passing $ to parameter of type $|"
7023  "passing to parameter of different type}0,1"
7024  "|%diff{returning $ from a function with result type $|"
7025  "returning from function with different return type}0,1"
7026  "|%diff{converting $ to type $|converting between types}0,1"
7027  "|%diff{initializing $ with an expression of type $|"
7028  "initializing with expression of different type}0,1"
7029  "|%diff{sending $ to parameter of type $|"
7030  "sending to parameter of different type}0,1"
7031  "|%diff{casting $ to type $|casting between types}0,1}2"
7032  " discards qualifiers in nested pointer types">,
7033  InGroup<IncompatiblePointerTypesDiscardsQualifiers>;
7034def warn_incompatible_vectors : Warning<
7035  "incompatible vector types "
7036  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7037  "|%diff{passing $ to parameter of type $|"
7038  "passing to parameter of different type}0,1"
7039  "|%diff{returning $ from a function with result type $|"
7040  "returning from function with different return type}0,1"
7041  "|%diff{converting $ to type $|converting between types}0,1"
7042  "|%diff{initializing $ with an expression of type $|"
7043  "initializing with expression of different type}0,1"
7044  "|%diff{sending $ to parameter of type $|"
7045  "sending to parameter of different type}0,1"
7046  "|%diff{casting $ to type $|casting between types}0,1}2">,
7047  InGroup<VectorConversion>, DefaultIgnore;
7048def err_int_to_block_pointer : Error<
7049  "invalid block pointer conversion "
7050  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7051  "|%diff{passing $ to parameter of type $|"
7052  "passing to parameter of different type}0,1"
7053  "|%diff{returning $ from a function with result type $|"
7054  "returning from function with different return type}0,1"
7055  "|%diff{converting $ to type $|converting between types}0,1"
7056  "|%diff{initializing $ with an expression of type $|"
7057  "initializing with expression of different type}0,1"
7058  "|%diff{sending $ to parameter of type $|"
7059  "sending to parameter of different type}0,1"
7060  "|%diff{casting $ to type $|casting between types}0,1}2">;
7061def err_typecheck_convert_incompatible_block_pointer : Error<
7062  "incompatible block pointer types "
7063  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7064  "|%diff{passing $ to parameter of type $|"
7065  "passing to parameter of different type}0,1"
7066  "|%diff{returning $ from a function with result type $|"
7067  "returning from function with different return type}0,1"
7068  "|%diff{converting $ to type $|converting between types}0,1"
7069  "|%diff{initializing $ with an expression of type $|"
7070  "initializing with expression of different type}0,1"
7071  "|%diff{sending $ to parameter of type $|"
7072  "sending to parameter of different type}0,1"
7073  "|%diff{casting $ to type $|casting between types}0,1}2">;
7074def err_typecheck_incompatible_address_space : Error<
7075  "%select{%diff{assigning $ to $|assigning to different types}1,0"
7076  "|%diff{passing $ to parameter of type $|"
7077  "passing to parameter of different type}0,1"
7078  "|%diff{returning $ from a function with result type $|"
7079  "returning from function with different return type}0,1"
7080  "|%diff{converting $ to type $|converting between types}0,1"
7081  "|%diff{initializing $ with an expression of type $|"
7082  "initializing with expression of different type}0,1"
7083  "|%diff{sending $ to parameter of type $|"
7084  "sending to parameter of different type}0,1"
7085  "|%diff{casting $ to type $|casting between types}0,1}2"
7086  " changes address space of pointer">;
7087def err_typecheck_incompatible_nested_address_space : Error<
7088  "%select{%diff{assigning $ to $|assigning to different types}1,0"
7089  "|%diff{passing $ to parameter of type $|"
7090  "passing to parameter of different type}0,1"
7091  "|%diff{returning $ from a function with result type $|"
7092  "returning from function with different return type}0,1"
7093  "|%diff{converting $ to type $|converting between types}0,1"
7094  "|%diff{initializing $ with an expression of type $|"
7095  "initializing with expression of different type}0,1"
7096  "|%diff{sending $ to parameter of type $|"
7097  "sending to parameter of different type}0,1"
7098  "|%diff{casting $ to type $|casting between types}0,1}2"
7099  " changes address space of nested pointer">;
7100def err_typecheck_incompatible_ownership : Error<
7101  "%select{%diff{assigning $ to $|assigning to different types}1,0"
7102  "|%diff{passing $ to parameter of type $|"
7103  "passing to parameter of different type}0,1"
7104  "|%diff{returning $ from a function with result type $|"
7105  "returning from function with different return type}0,1"
7106  "|%diff{converting $ to type $|converting between types}0,1"
7107  "|%diff{initializing $ with an expression of type $|"
7108  "initializing with expression of different type}0,1"
7109  "|%diff{sending $ to parameter of type $|"
7110  "sending to parameter of different type}0,1"
7111  "|%diff{casting $ to type $|casting between types}0,1}2"
7112  " changes retain/release properties of pointer">;
7113def err_typecheck_comparison_of_distinct_blocks : Error<
7114  "comparison of distinct block types%diff{ ($ and $)|}0,1">;
7115
7116def err_typecheck_array_not_modifiable_lvalue : Error<
7117  "array type %0 is not assignable">;
7118def err_typecheck_non_object_not_modifiable_lvalue : Error<
7119  "non-object type %0 is not assignable">;
7120def err_typecheck_expression_not_modifiable_lvalue : Error<
7121  "expression is not assignable">;
7122def err_typecheck_incomplete_type_not_modifiable_lvalue : Error<
7123  "incomplete type %0 is not assignable">;
7124def err_typecheck_lvalue_casts_not_supported : Error<
7125  "assignment to cast is illegal, lvalue casts are not supported">;
7126
7127def err_typecheck_duplicate_vector_components_not_mlvalue : Error<
7128  "vector is not assignable (contains duplicate components)">;
7129def err_block_decl_ref_not_modifiable_lvalue : Error<
7130  "variable is not assignable (missing __block type specifier)">;
7131def err_lambda_decl_ref_not_modifiable_lvalue : Error<
7132  "cannot assign to a variable captured by copy in a non-mutable lambda">;
7133def err_typecheck_call_not_function : Error<
7134  "called object type %0 is not a function or function pointer">;
7135def err_call_incomplete_return : Error<
7136  "calling function with incomplete return type %0">;
7137def err_call_function_incomplete_return : Error<
7138  "calling %0 with incomplete return type %1">;
7139def err_call_incomplete_argument : Error<
7140  "argument type %0 is incomplete">;
7141def err_typecheck_call_too_few_args : Error<
7142  "too few %select{|||execution configuration }0arguments to "
7143  "%select{function|block|method|kernel function}0 call, "
7144  "expected %1, have %2">;
7145def err_typecheck_call_too_few_args_one : Error<
7146  "too few %select{|||execution configuration }0arguments to "
7147  "%select{function|block|method|kernel function}0 call, "
7148  "single argument %1 was not specified">;
7149def err_typecheck_call_too_few_args_at_least : Error<
7150  "too few %select{|||execution configuration }0arguments to "
7151  "%select{function|block|method|kernel function}0 call, "
7152  "expected at least %1, have %2">;
7153def err_typecheck_call_too_few_args_at_least_one : Error<
7154  "too few %select{|||execution configuration }0arguments to "
7155  "%select{function|block|method|kernel function}0 call, "
7156  "at least argument %1 must be specified">;
7157def err_typecheck_call_too_few_args_suggest : Error<
7158  "too few %select{|||execution configuration }0arguments to "
7159  "%select{function|block|method|kernel function}0 call, "
7160  "expected %1, have %2; did you mean %3?">;
7161def err_typecheck_call_too_few_args_at_least_suggest : Error<
7162  "too few %select{|||execution configuration }0arguments to "
7163  "%select{function|block|method|kernel function}0 call, "
7164  "expected at least %1, have %2; did you mean %3?">;
7165def err_typecheck_call_too_many_args : Error<
7166  "too many %select{|||execution configuration }0arguments to "
7167  "%select{function|block|method|kernel function}0 call, "
7168  "expected %1, have %2">;
7169def err_typecheck_call_too_many_args_one : Error<
7170  "too many %select{|||execution configuration }0arguments to "
7171  "%select{function|block|method|kernel function}0 call, "
7172  "expected single argument %1, have %2 arguments">;
7173def err_typecheck_call_too_many_args_at_most : Error<
7174  "too many %select{|||execution configuration }0arguments to "
7175  "%select{function|block|method|kernel function}0 call, "
7176  "expected at most %1, have %2">;
7177def err_typecheck_call_too_many_args_at_most_one : Error<
7178  "too many %select{|||execution configuration }0arguments to "
7179  "%select{function|block|method|kernel function}0 call, "
7180  "expected at most single argument %1, have %2 arguments">;
7181def err_typecheck_call_too_many_args_suggest : Error<
7182  "too many %select{|||execution configuration }0arguments to "
7183  "%select{function|block|method|kernel function}0 call, "
7184  "expected %1, have %2; did you mean %3?">;
7185def err_typecheck_call_too_many_args_at_most_suggest : Error<
7186  "too many %select{|||execution configuration }0arguments to "
7187  "%select{function|block|method|kernel function}0 call, "
7188  "expected at most %1, have %2; did you mean %3?">;
7189
7190def err_arc_typecheck_convert_incompatible_pointer : Error<
7191  "incompatible pointer types passing retainable parameter of type %0"
7192  "to a CF function expecting %1 type">;
7193
7194def err_builtin_fn_use : Error<"builtin functions must be directly called">;
7195
7196def warn_call_wrong_number_of_arguments : Warning<
7197  "too %select{few|many}0 arguments in call to %1">;
7198def err_atomic_builtin_must_be_pointer : Error<
7199  "address argument to atomic builtin must be a pointer (%0 invalid)">;
7200def err_atomic_builtin_must_be_pointer_intptr : Error<
7201  "address argument to atomic builtin must be a pointer to integer or pointer"
7202  " (%0 invalid)">;
7203def err_atomic_builtin_cannot_be_const : Error<
7204  "address argument to atomic builtin cannot be const-qualified (%0 invalid)">;
7205def err_atomic_builtin_must_be_pointer_intfltptr : Error<
7206  "address argument to atomic builtin must be a pointer to integer,"
7207  " floating-point or pointer (%0 invalid)">;
7208def err_atomic_builtin_pointer_size : Error<
7209  "address argument to atomic builtin must be a pointer to 1,2,4,8 or 16 byte "
7210  "type (%0 invalid)">;
7211def err_atomic_exclusive_builtin_pointer_size : Error<
7212  "address argument to load or store exclusive builtin must be a pointer to"
7213  " 1,2,4 or 8 byte type (%0 invalid)">;
7214def err_atomic_op_needs_atomic : Error<
7215  "address argument to atomic operation must be a pointer to _Atomic "
7216  "type (%0 invalid)">;
7217def err_atomic_op_needs_non_const_atomic : Error<
7218  "address argument to atomic operation must be a pointer to non-%select{const|constant}0 _Atomic "
7219  "type (%1 invalid)">;
7220def err_atomic_op_needs_non_const_pointer : Error<
7221  "address argument to atomic operation must be a pointer to non-const "
7222  "type (%0 invalid)">;
7223def err_atomic_op_needs_trivial_copy : Error<
7224  "address argument to atomic operation must be a pointer to a "
7225  "trivially-copyable type (%0 invalid)">;
7226def err_atomic_op_needs_atomic_int_or_ptr : Error<
7227  "address argument to atomic operation must be a pointer to %select{|atomic }0"
7228  "integer or pointer (%1 invalid)">;
7229def err_atomic_op_needs_int32_or_ptr : Error<
7230  "address argument to atomic operation must be a pointer to signed or unsigned 32-bit integer">;
7231def err_atomic_op_bitwise_needs_atomic_int : Error<
7232  "address argument to bitwise atomic operation must be a pointer to "
7233  "%select{|atomic }0integer (%1 invalid)">;
7234def warn_atomic_op_has_invalid_memory_order : Warning<
7235  "memory order argument to atomic operation is invalid">,
7236  InGroup<DiagGroup<"atomic-memory-ordering">>;
7237def err_atomic_op_has_invalid_synch_scope : Error<
7238  "synchronization scope argument to atomic operation is invalid">;
7239def warn_atomic_implicit_seq_cst : Warning<
7240  "implicit use of sequentially-consistent atomic may incur stronger memory barriers than necessary">,
7241  InGroup<DiagGroup<"atomic-implicit-seq-cst">>, DefaultIgnore;
7242
7243def err_overflow_builtin_must_be_int : Error<
7244  "operand argument to overflow builtin must be an integer (%0 invalid)">;
7245def err_overflow_builtin_must_be_ptr_int : Error<
7246  "result argument to overflow builtin must be a pointer "
7247  "to a non-const integer (%0 invalid)">;
7248
7249def err_atomic_load_store_uses_lib : Error<
7250  "atomic %select{load|store}0 requires runtime support that is not "
7251  "available for this target">;
7252
7253def err_nontemporal_builtin_must_be_pointer : Error<
7254  "address argument to nontemporal builtin must be a pointer (%0 invalid)">;
7255def err_nontemporal_builtin_must_be_pointer_intfltptr_or_vector : Error<
7256  "address argument to nontemporal builtin must be a pointer to integer, float, "
7257  "pointer, or a vector of such types (%0 invalid)">;
7258
7259def err_deleted_function_use : Error<"attempt to use a deleted function">;
7260def err_deleted_inherited_ctor_use : Error<
7261  "constructor inherited by %0 from base class %1 is implicitly deleted">;
7262
7263def note_called_by : Note<"called by %0">;
7264def err_kern_type_not_void_return : Error<
7265  "kernel function type %0 must have void return type">;
7266def err_kern_is_nonstatic_method : Error<
7267  "kernel function %0 must be a free function or static member function">;
7268def err_config_scalar_return : Error<
7269  "CUDA special function '%0' must have scalar return type">;
7270def err_kern_call_not_global_function : Error<
7271  "kernel call to non-global function %0">;
7272def err_global_call_not_config : Error<
7273  "call to global function %0 not configured">;
7274def err_ref_bad_target : Error<
7275  "reference to %select{__device__|__global__|__host__|__host__ __device__}0 "
7276  "function %1 in %select{__device__|__global__|__host__|__host__ __device__}2 function">;
7277def err_ref_bad_target_global_initializer : Error<
7278  "reference to %select{__device__|__global__|__host__|__host__ __device__}0 "
7279  "function %1 in global initializer">;
7280def warn_kern_is_method : Extension<
7281  "kernel function %0 is a member function; this may not be accepted by nvcc">,
7282  InGroup<CudaCompat>;
7283def warn_kern_is_inline : Warning<
7284  "ignored 'inline' attribute on kernel function %0">,
7285  InGroup<CudaCompat>;
7286def err_variadic_device_fn : Error<
7287  "CUDA device code does not support variadic functions">;
7288def err_va_arg_in_device : Error<
7289  "CUDA device code does not support va_arg">;
7290def err_alias_not_supported_on_nvptx : Error<"CUDA does not support aliases">;
7291def err_cuda_unattributed_constexpr_cannot_overload_device : Error<
7292  "constexpr function %0 without __host__ or __device__ attributes cannot "
7293  "overload __device__ function with same signature.  Add a __host__ "
7294  "attribute, or build with -fno-cuda-host-device-constexpr.">;
7295def note_cuda_conflicting_device_function_declared_here : Note<
7296  "conflicting __device__ function declared here">;
7297def err_cuda_device_exceptions : Error<
7298  "cannot use '%0' in "
7299  "%select{__device__|__global__|__host__|__host__ __device__}1 function">;
7300def err_dynamic_var_init : Error<
7301    "dynamic initialization is not supported for "
7302    "__device__, __constant__, and __shared__ variables.">;
7303def err_shared_var_init : Error<
7304    "initialization is not supported for __shared__ variables.">;
7305def err_device_static_local_var : Error<
7306    "within a %select{__device__|__global__|__host__|__host__ __device__}0 "
7307    "function, only __shared__ variables or const variables without device "
7308    "memory qualifier may be marked 'static'">;
7309def err_cuda_vla : Error<
7310    "cannot use variable-length arrays in "
7311    "%select{__device__|__global__|__host__|__host__ __device__}0 functions">;
7312def err_cuda_extern_shared : Error<"__shared__ variable %0 cannot be 'extern'">;
7313def err_cuda_host_shared : Error<
7314    "__shared__ local variables not allowed in "
7315    "%select{__device__|__global__|__host__|__host__ __device__}0 functions">;
7316def err_cuda_nonglobal_constant : Error<"__constant__ variables must be global">;
7317def err_cuda_ovl_target : Error<
7318  "%select{__device__|__global__|__host__|__host__ __device__}0 function %1 "
7319  "cannot overload %select{__device__|__global__|__host__|__host__ __device__}2 function %3">;
7320def note_cuda_ovl_candidate_target_mismatch : Note<
7321    "candidate template ignored: target attributes do not match">;
7322
7323def warn_non_pod_vararg_with_format_string : Warning<
7324  "cannot pass %select{non-POD|non-trivial}0 object of type %1 to variadic "
7325  "%select{function|block|method|constructor}2; expected type from format "
7326  "string was %3">, InGroup<NonPODVarargs>, DefaultError;
7327// The arguments to this diagnostic should match the warning above.
7328def err_cannot_pass_objc_interface_to_vararg_format : Error<
7329  "cannot pass object with interface type %1 by value to variadic "
7330  "%select{function|block|method|constructor}2; expected type from format "
7331  "string was %3">;
7332def err_cannot_pass_non_trivial_c_struct_to_vararg : Error<
7333  "cannot pass non-trivial C object of type %0 by value to variadic "
7334  "%select{function|block|method|constructor}1">;
7335
7336
7337def err_cannot_pass_objc_interface_to_vararg : Error<
7338  "cannot pass object with interface type %0 by value through variadic "
7339  "%select{function|block|method|constructor}1">;
7340def warn_cannot_pass_non_pod_arg_to_vararg : Warning<
7341  "cannot pass object of %select{non-POD|non-trivial}0 type %1 through variadic"
7342  " %select{function|block|method|constructor}2; call will abort at runtime">,
7343  InGroup<NonPODVarargs>, DefaultError;
7344def warn_cxx98_compat_pass_non_pod_arg_to_vararg : Warning<
7345  "passing object of trivial but non-POD type %0 through variadic"
7346  " %select{function|block|method|constructor}1 is incompatible with C++98">,
7347  InGroup<CXX98Compat>, DefaultIgnore;
7348def warn_pass_class_arg_to_vararg : Warning<
7349  "passing object of class type %0 through variadic "
7350  "%select{function|block|method|constructor}1"
7351  "%select{|; did you mean to call '%3'?}2">,
7352  InGroup<ClassVarargs>, DefaultIgnore;
7353def err_cannot_pass_to_vararg : Error<
7354  "cannot pass %select{expression of type %1|initializer list}0 to variadic "
7355  "%select{function|block|method|constructor}2">;
7356def err_cannot_pass_to_vararg_format : Error<
7357  "cannot pass %select{expression of type %1|initializer list}0 to variadic "
7358  "%select{function|block|method|constructor}2; expected type from format "
7359  "string was %3">;
7360
7361def err_typecheck_call_invalid_ordered_compare : Error<
7362  "ordered compare requires two args of floating point type"
7363  "%diff{ ($ and $)|}0,1">;
7364def err_typecheck_call_invalid_unary_fp : Error<
7365  "floating point classification requires argument of floating point type "
7366  "(passed in %0)">;
7367def err_typecheck_cond_expect_int_float : Error<
7368  "used type %0 where integer or floating point type is required">;
7369def err_typecheck_cond_expect_scalar : Error<
7370  "used type %0 where arithmetic or pointer type is required">;
7371def err_typecheck_cond_expect_nonfloat : Error<
7372  "used type %0 where floating point type is not allowed">;
7373def ext_typecheck_cond_one_void : Extension<
7374  "C99 forbids conditional expressions with only one void side">;
7375def err_typecheck_cast_to_incomplete : Error<
7376  "cast to incomplete type %0">;
7377def ext_typecheck_cast_nonscalar : Extension<
7378  "C99 forbids casting nonscalar type %0 to the same type">;
7379def ext_typecheck_cast_to_union : Extension<
7380  "cast to union type is a GNU extension">,
7381  InGroup<GNUUnionCast>;
7382def err_typecheck_cast_to_union_no_type : Error<
7383  "cast to union type from type %0 not present in union">;
7384def err_cast_pointer_from_non_pointer_int : Error<
7385  "operand of type %0 cannot be cast to a pointer type">;
7386def warn_cast_pointer_from_sel : Warning<
7387  "cast of type %0 to %1 is deprecated; use sel_getName instead">,
7388  InGroup<SelTypeCast>;
7389def warn_function_def_in_objc_container : Warning<
7390  "function definition inside an Objective-C container is deprecated">,
7391  InGroup<FunctionDefInObjCContainer>;
7392
7393def warn_cast_calling_conv : Warning<
7394  "cast between incompatible calling conventions '%0' and '%1'; "
7395  "calls through this pointer may abort at runtime">,
7396  InGroup<DiagGroup<"cast-calling-convention">>;
7397def note_change_calling_conv_fixit : Note<
7398  "consider defining %0 with the '%1' calling convention">;
7399def warn_bad_function_cast : Warning<
7400  "cast from function call of type %0 to non-matching type %1">,
7401  InGroup<BadFunctionCast>, DefaultIgnore;
7402def err_cast_pointer_to_non_pointer_int : Error<
7403  "pointer cannot be cast to type %0">;
7404def err_typecheck_expect_scalar_operand : Error<
7405  "operand of type %0 where arithmetic or pointer type is required">;
7406def err_typecheck_cond_incompatible_operands : Error<
7407  "incompatible operand types%diff{ ($ and $)|}0,1">;
7408def err_cast_selector_expr : Error<
7409  "cannot type cast @selector expression">;
7410def ext_typecheck_cond_incompatible_pointers : ExtWarn<
7411  "pointer type mismatch%diff{ ($ and $)|}0,1">,
7412  InGroup<DiagGroup<"pointer-type-mismatch">>;
7413def ext_typecheck_cond_pointer_integer_mismatch : ExtWarn<
7414  "pointer/integer type mismatch in conditional expression"
7415  "%diff{ ($ and $)|}0,1">,
7416  InGroup<DiagGroup<"conditional-type-mismatch">>;
7417def err_typecheck_choose_expr_requires_constant : Error<
7418  "'__builtin_choose_expr' requires a constant expression">;
7419def warn_unused_expr : Warning<"expression result unused">,
7420  InGroup<UnusedValue>;
7421def warn_unused_voidptr : Warning<
7422  "expression result unused; should this cast be to 'void'?">,
7423  InGroup<UnusedValue>;
7424def warn_unused_property_expr : Warning<
7425 "property access result unused - getters should not be used for side effects">,
7426  InGroup<UnusedGetterReturnValue>;
7427def warn_unused_container_subscript_expr : Warning<
7428 "container access result unused - container access should not be used for side effects">,
7429  InGroup<UnusedValue>;
7430def warn_unused_call : Warning<
7431  "ignoring return value of function declared with %0 attribute">,
7432  InGroup<UnusedValue>;
7433def warn_side_effects_unevaluated_context : Warning<
7434  "expression with side effects has no effect in an unevaluated context">,
7435  InGroup<UnevaluatedExpression>;
7436def warn_side_effects_typeid : Warning<
7437  "expression with side effects will be evaluated despite being used as an "
7438  "operand to 'typeid'">, InGroup<PotentiallyEvaluatedExpression>;
7439def warn_unused_result : Warning<
7440  "ignoring return value of function declared with %0 attribute">,
7441  InGroup<UnusedResult>;
7442def warn_unused_volatile : Warning<
7443  "expression result unused; assign into a variable to force a volatile load">,
7444  InGroup<DiagGroup<"unused-volatile-lvalue">>;
7445
7446def ext_cxx14_attr : Extension<
7447  "use of the %0 attribute is a C++14 extension">, InGroup<CXX14>;
7448def ext_cxx17_attr : Extension<
7449  "use of the %0 attribute is a C++17 extension">, InGroup<CXX17>;
7450
7451def warn_unused_comparison : Warning<
7452  "%select{equality|inequality|relational|three-way}0 comparison result unused">,
7453  InGroup<UnusedComparison>;
7454def note_inequality_comparison_to_or_assign : Note<
7455  "use '|=' to turn this inequality comparison into an or-assignment">;
7456
7457def err_incomplete_type_used_in_type_trait_expr : Error<
7458  "incomplete type %0 used in type trait expression">;
7459
7460def err_require_constant_init_failed : Error<
7461  "variable does not have a constant initializer">;
7462def note_declared_required_constant_init_here : Note<
7463  "required by 'require_constant_initialization' attribute here">;
7464
7465def err_dimension_expr_not_constant_integer : Error<
7466  "dimension expression does not evaluate to a constant unsigned int">;
7467
7468def err_typecheck_cond_incompatible_operands_null : Error<
7469  "non-pointer operand type %0 incompatible with %select{NULL|nullptr}1">;
7470def ext_empty_struct_union : Extension<
7471  "empty %select{struct|union}0 is a GNU extension">, InGroup<GNUEmptyStruct>;
7472def ext_no_named_members_in_struct_union : Extension<
7473  "%select{struct|union}0 without named members is a GNU extension">, InGroup<GNUEmptyStruct>;
7474def warn_zero_size_struct_union_compat : Warning<"%select{|empty }0"
7475  "%select{struct|union}1 has size 0 in C, %select{size 1|non-zero size}2 in C++">,
7476  InGroup<CXXCompat>, DefaultIgnore;
7477def warn_zero_size_struct_union_in_extern_c : Warning<"%select{|empty }0"
7478  "%select{struct|union}1 has size 0 in C, %select{size 1|non-zero size}2 in C++">,
7479  InGroup<ExternCCompat>;
7480def warn_cast_qual : Warning<"cast from %0 to %1 drops %select{const and "
7481  "volatile qualifiers|const qualifier|volatile qualifier}2">,
7482  InGroup<CastQual>, DefaultIgnore;
7483def warn_cast_qual2 : Warning<"cast from %0 to %1 must have all intermediate "
7484  "pointers const qualified to be safe">, InGroup<CastQual>, DefaultIgnore;
7485def warn_redefine_extname_not_applied : Warning<
7486  "#pragma redefine_extname is applicable to external C declarations only; "
7487  "not applied to %select{function|variable}0 %1">,
7488  InGroup<Pragmas>;
7489} // End of general sema category.
7490
7491// inline asm.
7492let CategoryName = "Inline Assembly Issue" in {
7493  def err_asm_invalid_lvalue_in_output : Error<"invalid lvalue in asm output">;
7494  def err_asm_invalid_output_constraint : Error<
7495    "invalid output constraint '%0' in asm">;
7496  def err_asm_invalid_lvalue_in_input : Error<
7497    "invalid lvalue in asm input for constraint '%0'">;
7498  def err_asm_invalid_input_constraint : Error<
7499    "invalid input constraint '%0' in asm">;
7500  def err_asm_immediate_expected : Error<"constraint '%0' expects "
7501    "an integer constant expression">;
7502  def err_asm_tying_incompatible_types : Error<
7503    "unsupported inline asm: input with type "
7504    "%diff{$ matching output with type $|}0,1">;
7505  def err_asm_unexpected_constraint_alternatives : Error<
7506    "asm constraint has an unexpected number of alternatives: %0 vs %1">;
7507  def err_asm_incomplete_type : Error<"asm operand has incomplete type %0">;
7508  def err_asm_unknown_register_name : Error<"unknown register name '%0' in asm">;
7509  def err_asm_invalid_global_var_reg : Error<"register '%0' unsuitable for "
7510    "global register variables on this target">;
7511  def err_asm_register_size_mismatch : Error<"size of register '%0' does not "
7512    "match variable size">;
7513  def err_asm_bad_register_type : Error<"bad type for named register variable">;
7514  def err_asm_invalid_input_size : Error<
7515    "invalid input size for constraint '%0'">;
7516  def err_asm_invalid_output_size : Error<
7517    "invalid output size for constraint '%0'">;
7518  def err_invalid_asm_cast_lvalue : Error<
7519    "invalid use of a cast in a inline asm context requiring an l-value: "
7520    "remove the cast or build with -fheinous-gnu-extensions">;
7521  def err_invalid_asm_value_for_constraint
7522      : Error <"value '%0' out of range for constraint '%1'">;
7523  def err_asm_non_addr_value_in_memory_constraint : Error <
7524    "reference to a %select{bit-field|vector element|global register variable}0"
7525    " in asm %select{input|output}1 with a memory constraint '%2'">;
7526  def err_asm_input_duplicate_match : Error<
7527    "more than one input constraint matches the same output '%0'">;
7528
7529  def warn_asm_label_on_auto_decl : Warning<
7530    "ignored asm label '%0' on automatic variable">;
7531  def warn_invalid_asm_cast_lvalue : Warning<
7532    "invalid use of a cast in an inline asm context requiring an l-value: "
7533    "accepted due to -fheinous-gnu-extensions, but clang may remove support "
7534    "for this in the future">;
7535  def warn_asm_mismatched_size_modifier : Warning<
7536    "value size does not match register size specified by the constraint "
7537    "and modifier">,
7538    InGroup<ASMOperandWidths>;
7539
7540  def note_asm_missing_constraint_modifier : Note<
7541    "use constraint modifier \"%0\"">;
7542  def note_asm_input_duplicate_first : Note<
7543    "constraint '%0' is already present here">;
7544 def error_duplicate_asm_operand_name : Error<
7545    "duplicate use of asm operand name \"%0\"">;
7546 def note_duplicate_asm_operand_name : Note<
7547    "asm operand name \"%0\" first referenced here">;
7548}
7549
7550  def error_inoutput_conflict_with_clobber : Error<
7551    "asm-specifier for input or output variable conflicts with asm"
7552    " clobber list">;
7553
7554let CategoryName = "Semantic Issue" in {
7555
7556def err_invalid_conversion_between_vectors : Error<
7557  "invalid conversion between vector type%diff{ $ and $|}0,1 of different "
7558  "size">;
7559def err_invalid_conversion_between_vector_and_integer : Error<
7560  "invalid conversion between vector type %0 and integer type %1 "
7561  "of different size">;
7562
7563def err_opencl_function_pointer : Error<
7564  "pointers to functions are not allowed">;
7565
7566def err_opencl_taking_address_capture : Error<
7567  "taking address of a capture is not allowed">;
7568
7569def err_invalid_conversion_between_vector_and_scalar : Error<
7570  "invalid conversion between vector type %0 and scalar type %1">;
7571
7572// C++ member initializers.
7573def err_only_constructors_take_base_inits : Error<
7574  "only constructors take base initializers">;
7575
7576def err_multiple_mem_initialization : Error <
7577  "multiple initializations given for non-static member %0">;
7578def err_multiple_mem_union_initialization : Error <
7579  "initializing multiple members of union">;
7580def err_multiple_base_initialization : Error <
7581  "multiple initializations given for base %0">;
7582
7583def err_mem_init_not_member_or_class : Error<
7584  "member initializer %0 does not name a non-static data member or base "
7585  "class">;
7586
7587def warn_initializer_out_of_order : Warning<
7588  "%select{field|base class}0 %1 will be initialized after "
7589  "%select{field|base}2 %3">,
7590  InGroup<Reorder>, DefaultIgnore;
7591def warn_abstract_vbase_init_ignored : Warning<
7592  "initializer for virtual base class %0 of abstract class %1 "
7593  "will never be used">,
7594  InGroup<DiagGroup<"abstract-vbase-init">>, DefaultIgnore;
7595
7596def err_base_init_does_not_name_class : Error<
7597  "constructor initializer %0 does not name a class">;
7598def err_base_init_direct_and_virtual : Error<
7599  "base class initializer %0 names both a direct base class and an "
7600  "inherited virtual base class">;
7601def err_not_direct_base_or_virtual : Error<
7602  "type %0 is not a direct or virtual base of %1">;
7603
7604def err_in_class_initializer_non_const : Error<
7605  "non-const static data member must be initialized out of line">;
7606def err_in_class_initializer_volatile : Error<
7607  "static const volatile data member must be initialized out of line">;
7608def err_in_class_initializer_bad_type : Error<
7609  "static data member of type %0 must be initialized out of line">;
7610def ext_in_class_initializer_float_type : ExtWarn<
7611  "in-class initializer for static data member of type %0 is a GNU extension">,
7612  InGroup<GNUStaticFloatInit>;
7613def ext_in_class_initializer_float_type_cxx11 : ExtWarn<
7614  "in-class initializer for static data member of type %0 requires "
7615  "'constexpr' specifier">, InGroup<StaticFloatInit>, DefaultError;
7616def note_in_class_initializer_float_type_cxx11 : Note<"add 'constexpr'">;
7617def err_in_class_initializer_literal_type : Error<
7618  "in-class initializer for static data member of type %0 requires "
7619  "'constexpr' specifier">;
7620def err_in_class_initializer_non_constant : Error<
7621  "in-class initializer for static data member is not a constant expression">;
7622def err_in_class_initializer_not_yet_parsed : Error<
7623  "default member initializer for %1 needed within definition of enclosing "
7624  "class %0 outside of member functions">;
7625def note_in_class_initializer_not_yet_parsed : Note<
7626  "default member initializer declared here">;
7627def err_in_class_initializer_cycle
7628    : Error<"default member initializer for %0 uses itself">;
7629
7630def ext_in_class_initializer_non_constant : Extension<
7631  "in-class initializer for static data member is not a constant expression; "
7632  "folding it to a constant is a GNU extension">, InGroup<GNUFoldingConstant>;
7633
7634def err_thread_dynamic_init : Error<
7635  "initializer for thread-local variable must be a constant expression">;
7636def err_thread_nontrivial_dtor : Error<
7637  "type of thread-local variable has non-trivial destruction">;
7638def note_use_thread_local : Note<
7639  "use 'thread_local' to allow this">;
7640
7641// C++ anonymous unions and GNU anonymous structs/unions
7642def ext_anonymous_union : Extension<
7643  "anonymous unions are a C11 extension">, InGroup<C11>;
7644def ext_gnu_anonymous_struct : Extension<
7645  "anonymous structs are a GNU extension">, InGroup<GNUAnonymousStruct>;
7646def ext_c11_anonymous_struct : Extension<
7647  "anonymous structs are a C11 extension">, InGroup<C11>;
7648def err_anonymous_union_not_static : Error<
7649  "anonymous unions at namespace or global scope must be declared 'static'">;
7650def err_anonymous_union_with_storage_spec : Error<
7651  "anonymous union at class scope must not have a storage specifier">;
7652def err_anonymous_struct_not_member : Error<
7653  "anonymous %select{structs|structs and classes}0 must be "
7654  "%select{struct or union|class}0 members">;
7655def err_anonymous_record_member_redecl : Error<
7656  "member of anonymous %select{struct|union}0 redeclares %1">;
7657def err_anonymous_record_with_type : Error<
7658  "types cannot be declared in an anonymous %select{struct|union}0">;
7659def ext_anonymous_record_with_type : Extension<
7660  "types declared in an anonymous %select{struct|union}0 are a Microsoft "
7661  "extension">, InGroup<MicrosoftAnonTag>;
7662def ext_anonymous_record_with_anonymous_type : Extension<
7663  "anonymous types declared in an anonymous %select{struct|union}0 "
7664  "are an extension">, InGroup<DiagGroup<"nested-anon-types">>;
7665def err_anonymous_record_with_function : Error<
7666  "functions cannot be declared in an anonymous %select{struct|union}0">;
7667def err_anonymous_record_with_static : Error<
7668  "static members cannot be declared in an anonymous %select{struct|union}0">;
7669def err_anonymous_record_bad_member : Error<
7670  "anonymous %select{struct|union}0 can only contain non-static data members">;
7671def err_anonymous_record_nonpublic_member : Error<
7672  "anonymous %select{struct|union}0 cannot contain a "
7673  "%select{private|protected}1 data member">;
7674def ext_ms_anonymous_record : ExtWarn<
7675  "anonymous %select{structs|unions}0 are a Microsoft extension">,
7676  InGroup<MicrosoftAnonTag>;
7677
7678// C++ local classes
7679def err_reference_to_local_in_enclosing_context : Error<
7680  "reference to local %select{variable|binding}1 %0 declared in enclosing "
7681  "%select{%3|block literal|lambda expression|context}2">;
7682
7683def err_static_data_member_not_allowed_in_local_class : Error<
7684  "static data member %0 not allowed in local class %1">;
7685
7686// C++ derived classes
7687def err_base_clause_on_union : Error<"unions cannot have base classes">;
7688def err_base_must_be_class : Error<"base specifier must name a class">;
7689def err_union_as_base_class : Error<"unions cannot be base classes">;
7690def err_circular_inheritance : Error<
7691  "circular inheritance between %0 and %1">;
7692def err_base_class_has_flexible_array_member : Error<
7693  "base class %0 has a flexible array member">;
7694def err_incomplete_base_class : Error<"base class has incomplete type">;
7695def err_duplicate_base_class : Error<
7696  "base class %0 specified more than once as a direct base class">;
7697def warn_inaccessible_base_class : Warning<
7698  "direct base %0 is inaccessible due to ambiguity:%1">,
7699  InGroup<DiagGroup<"inaccessible-base">>;
7700// FIXME: better way to display derivation?  Pass entire thing into diagclient?
7701def err_ambiguous_derived_to_base_conv : Error<
7702  "ambiguous conversion from derived class %0 to base class %1:%2">;
7703def err_ambiguous_memptr_conv : Error<
7704  "ambiguous conversion from pointer to member of %select{base|derived}0 "
7705  "class %1 to pointer to member of %select{derived|base}0 class %2:%3">;
7706def ext_ms_ambiguous_direct_base : ExtWarn<
7707  "accessing inaccessible direct base %0 of %1 is a Microsoft extension">,
7708  InGroup<MicrosoftInaccessibleBase>;
7709
7710def err_memptr_conv_via_virtual : Error<
7711  "conversion from pointer to member of class %0 to pointer to member "
7712  "of class %1 via virtual base %2 is not allowed">;
7713
7714// C++ member name lookup
7715def err_ambiguous_member_multiple_subobjects : Error<
7716  "non-static member %0 found in multiple base-class subobjects of type %1:%2">;
7717def err_ambiguous_member_multiple_subobject_types : Error<
7718  "member %0 found in multiple base classes of different types">;
7719def note_ambiguous_member_found : Note<"member found by ambiguous name lookup">;
7720def err_ambiguous_reference : Error<"reference to %0 is ambiguous">;
7721def note_ambiguous_candidate : Note<"candidate found by name lookup is %q0">;
7722def err_ambiguous_tag_hiding : Error<"a type named %0 is hidden by a "
7723  "declaration in a different namespace">;
7724def note_hidden_tag : Note<"type declaration hidden">;
7725def note_hiding_object : Note<"declaration hides type">;
7726
7727// C++ operator overloading
7728def err_operator_overload_needs_class_or_enum : Error<
7729  "overloaded %0 must have at least one parameter of class "
7730  "or enumeration type">;
7731
7732def err_operator_overload_variadic : Error<"overloaded %0 cannot be variadic">;
7733def err_operator_overload_static : Error<
7734  "overloaded %0 cannot be a static member function">;
7735def err_operator_overload_default_arg : Error<
7736  "parameter of overloaded %0 cannot have a default argument">;
7737def err_operator_overload_must_be : Error<
7738  "overloaded %0 must be a %select{unary|binary|unary or binary}2 operator "
7739  "(has %1 parameter%s1)">;
7740
7741def err_operator_overload_must_be_member : Error<
7742  "overloaded %0 must be a non-static member function">;
7743def err_operator_overload_post_incdec_must_be_int : Error<
7744  "parameter of overloaded post-%select{increment|decrement}1 operator must "
7745  "have type 'int' (not %0)">;
7746
7747// C++ allocation and deallocation functions.
7748def err_operator_new_delete_declared_in_namespace : Error<
7749  "%0 cannot be declared inside a namespace">;
7750def err_operator_new_delete_declared_static : Error<
7751  "%0 cannot be declared static in global scope">;
7752def ext_operator_new_delete_declared_inline : ExtWarn<
7753  "replacement function %0 cannot be declared 'inline'">,
7754  InGroup<DiagGroup<"inline-new-delete">>;
7755def err_operator_new_delete_invalid_result_type : Error<
7756  "%0 must return type %1">;
7757def err_operator_new_delete_dependent_result_type : Error<
7758  "%0 cannot have a dependent return type; use %1 instead">;
7759def err_operator_new_delete_too_few_parameters : Error<
7760  "%0 must have at least one parameter">;
7761def err_operator_new_delete_template_too_few_parameters : Error<
7762  "%0 template must have at least two parameters">;
7763def warn_operator_new_returns_null : Warning<
7764  "%0 should not return a null pointer unless it is declared 'throw()'"
7765  "%select{| or 'noexcept'}1">, InGroup<OperatorNewReturnsNull>;
7766
7767def err_operator_new_dependent_param_type : Error<
7768  "%0 cannot take a dependent type as first parameter; "
7769  "use size_t (%1) instead">;
7770def err_operator_new_param_type : Error<
7771  "%0 takes type size_t (%1) as first parameter">;
7772def err_operator_new_default_arg: Error<
7773  "parameter of %0 cannot have a default argument">;
7774def err_operator_delete_dependent_param_type : Error<
7775  "%0 cannot take a dependent type as first parameter; use %1 instead">;
7776def err_operator_delete_param_type : Error<
7777  "first parameter of %0 must have type %1">;
7778def err_destroying_operator_delete_not_usual : Error<
7779  "destroying operator delete can have only an optional size and optional "
7780  "alignment parameter">;
7781def note_implicit_delete_this_in_destructor_here : Note<
7782  "while checking implicit 'delete this' for virtual destructor">;
7783def err_builtin_operator_new_delete_not_usual : Error<
7784  "call to '%select{__builtin_operator_new|__builtin_operator_delete}0' "
7785  "selects non-usual %select{allocation|deallocation}0 function">;
7786def note_non_usual_function_declared_here : Note<
7787  "non-usual %0 declared here">;
7788
7789// C++ literal operators
7790def err_literal_operator_outside_namespace : Error<
7791  "literal operator %0 must be in a namespace or global scope">;
7792def err_literal_operator_id_outside_namespace : Error<
7793  "non-namespace scope '%0' cannot have a literal operator member">;
7794def err_literal_operator_default_argument : Error<
7795  "literal operator cannot have a default argument">;
7796def err_literal_operator_bad_param_count : Error<
7797  "non-template literal operator must have one or two parameters">;
7798def err_literal_operator_invalid_param : Error<
7799  "parameter of literal operator must have type 'unsigned long long', 'long double', 'char', 'wchar_t', 'char16_t', 'char32_t', or 'const char *'">;
7800def err_literal_operator_param : Error<
7801  "invalid literal operator parameter type %0, did you mean %1?">;
7802def err_literal_operator_template_with_params : Error<
7803  "literal operator template cannot have any parameters">;
7804def err_literal_operator_template : Error<
7805  "template parameter list for literal operator must be either 'char...' or 'typename T, T...'">;
7806def err_literal_operator_extern_c : Error<
7807  "literal operator must have C++ linkage">;
7808def ext_string_literal_operator_template : ExtWarn<
7809  "string literal operator templates are a GNU extension">,
7810  InGroup<GNUStringLiteralOperatorTemplate>;
7811def warn_user_literal_reserved : Warning<
7812  "user-defined literal suffixes not starting with '_' are reserved"
7813  "%select{; no literal will invoke this operator|}0">,
7814  InGroup<UserDefinedLiterals>;
7815
7816// C++ conversion functions
7817def err_conv_function_not_member : Error<
7818  "conversion function must be a non-static member function">;
7819def err_conv_function_return_type : Error<
7820  "conversion function cannot have a return type">;
7821def err_conv_function_with_params : Error<
7822  "conversion function cannot have any parameters">;
7823def err_conv_function_variadic : Error<
7824  "conversion function cannot be variadic">;
7825def err_conv_function_to_array : Error<
7826  "conversion function cannot convert to an array type">;
7827def err_conv_function_to_function : Error<
7828  "conversion function cannot convert to a function type">;
7829def err_conv_function_with_complex_decl : Error<
7830  "cannot specify any part of a return type in the "
7831  "declaration of a conversion function"
7832  "%select{"
7833  "; put the complete type after 'operator'|"
7834  "; use a typedef to declare a conversion to %1|"
7835  "; use an alias template to declare a conversion to %1|"
7836  "}0">;
7837def err_conv_function_redeclared : Error<
7838  "conversion function cannot be redeclared">;
7839def warn_conv_to_self_not_used : Warning<
7840  "conversion function converting %0 to itself will never be used">;
7841def warn_conv_to_base_not_used : Warning<
7842  "conversion function converting %0 to its base class %1 will never be used">;
7843def warn_conv_to_void_not_used : Warning<
7844  "conversion function converting %0 to %1 will never be used">;
7845
7846def warn_not_compound_assign : Warning<
7847  "use of unary operator that may be intended as compound assignment (%0=)">;
7848
7849// C++11 explicit conversion operators
7850def ext_explicit_conversion_functions : ExtWarn<
7851  "explicit conversion functions are a C++11 extension">, InGroup<CXX11>;
7852def warn_cxx98_compat_explicit_conversion_functions : Warning<
7853  "explicit conversion functions are incompatible with C++98">,
7854  InGroup<CXX98Compat>, DefaultIgnore;
7855
7856// C++11 defaulted functions
7857def err_defaulted_special_member_params : Error<
7858  "an explicitly-defaulted %select{|copy |move }0constructor cannot "
7859  "have default arguments">;
7860def err_defaulted_special_member_variadic : Error<
7861  "an explicitly-defaulted %select{|copy |move }0constructor cannot "
7862  "be variadic">;
7863def err_defaulted_special_member_return_type : Error<
7864  "explicitly-defaulted %select{copy|move}0 assignment operator must "
7865  "return %1">;
7866def err_defaulted_special_member_quals : Error<
7867  "an explicitly-defaulted %select{copy|move}0 assignment operator may not "
7868  "have 'const'%select{, 'constexpr'|}1 or 'volatile' qualifiers">;
7869def err_defaulted_special_member_volatile_param : Error<
7870  "the parameter for an explicitly-defaulted %sub{select_special_member_kind}0 "
7871  "may not be volatile">;
7872def err_defaulted_special_member_move_const_param : Error<
7873  "the parameter for an explicitly-defaulted move "
7874  "%select{constructor|assignment operator}0 may not be const">;
7875def err_defaulted_special_member_copy_const_param : Error<
7876  "the parameter for this explicitly-defaulted copy "
7877  "%select{constructor|assignment operator}0 is const, but a member or base "
7878  "requires it to be non-const">;
7879def err_defaulted_copy_assign_not_ref : Error<
7880  "the parameter for an explicitly-defaulted copy assignment operator must be an "
7881  "lvalue reference type">;
7882def err_incorrect_defaulted_constexpr : Error<
7883  "defaulted definition of %sub{select_special_member_kind}0 "
7884  "is not constexpr">;
7885def err_incorrect_defaulted_consteval : Error<
7886  "defaulted declaration of %sub{select_special_member_kind}0 "
7887  "cannot be consteval because implicit definition is not constexpr">;
7888def warn_defaulted_method_deleted : Warning<
7889  "explicitly defaulted %sub{select_special_member_kind}0 is implicitly "
7890  "deleted">, InGroup<DiagGroup<"defaulted-function-deleted">>;
7891def err_out_of_line_default_deletes : Error<
7892  "defaulting this %sub{select_special_member_kind}0 "
7893  "would delete it after its first declaration">;
7894def note_deleted_type_mismatch : Note<
7895  "function is implicitly deleted because its declared type does not match "
7896  "the type of an implicit %sub{select_special_member_kind}0">;
7897def warn_cxx17_compat_defaulted_method_type_mismatch : Warning<
7898  "explicitly defaulting this %sub{select_special_member_kind}0 with a type "
7899  "different from the implicit type is incompatible with C++ standards before "
7900  "C++2a">, InGroup<CXXPre2aCompat>, DefaultIgnore;
7901def warn_vbase_moved_multiple_times : Warning<
7902  "defaulted move assignment operator of %0 will move assign virtual base "
7903  "class %1 multiple times">, InGroup<DiagGroup<"multiple-move-vbase">>;
7904def note_vbase_moved_here : Note<
7905  "%select{%1 is a virtual base class of base class %2 declared here|"
7906  "virtual base class %1 declared here}0">;
7907
7908def ext_implicit_exception_spec_mismatch : ExtWarn<
7909  "function previously declared with an %select{explicit|implicit}0 exception "
7910  "specification redeclared with an %select{implicit|explicit}0 exception "
7911  "specification">, InGroup<DiagGroup<"implicit-exception-spec-mismatch">>;
7912
7913def warn_ptr_arith_precedes_bounds : Warning<
7914  "the pointer decremented by %0 refers before the beginning of the array">,
7915  InGroup<ArrayBoundsPointerArithmetic>, DefaultIgnore;
7916def warn_ptr_arith_exceeds_bounds : Warning<
7917  "the pointer incremented by %0 refers past the end of the array (that "
7918  "contains %1 element%s2)">,
7919  InGroup<ArrayBoundsPointerArithmetic>, DefaultIgnore;
7920def warn_array_index_precedes_bounds : Warning<
7921  "array index %0 is before the beginning of the array">,
7922  InGroup<ArrayBounds>;
7923def warn_array_index_exceeds_bounds : Warning<
7924  "array index %0 is past the end of the array (which contains %1 "
7925  "element%s2)">, InGroup<ArrayBounds>;
7926def note_array_index_out_of_bounds : Note<
7927  "array %0 declared here">;
7928
7929def warn_printf_insufficient_data_args : Warning<
7930  "more '%%' conversions than data arguments">, InGroup<Format>;
7931def warn_printf_data_arg_not_used : Warning<
7932  "data argument not used by format string">, InGroup<FormatExtraArgs>;
7933def warn_format_invalid_conversion : Warning<
7934  "invalid conversion specifier '%0'">, InGroup<FormatInvalidSpecifier>;
7935def warn_printf_incomplete_specifier : Warning<
7936  "incomplete format specifier">, InGroup<Format>;
7937def warn_missing_format_string : Warning<
7938  "format string missing">, InGroup<Format>;
7939def warn_scanf_nonzero_width : Warning<
7940  "zero field width in scanf format string is unused">,
7941  InGroup<Format>;
7942def warn_format_conversion_argument_type_mismatch : Warning<
7943  "format specifies type %0 but the argument has "
7944  "%select{type|underlying type}2 %1">,
7945  InGroup<Format>;
7946def warn_format_conversion_argument_type_mismatch_pedantic : Extension<
7947  "format specifies type %0 but the argument has "
7948  "%select{type|underlying type}2 %1">,
7949  InGroup<FormatPedantic>;
7950def warn_format_argument_needs_cast : Warning<
7951  "%select{values of type|enum values with underlying type}2 '%0' should not "
7952  "be used as format arguments; add an explicit cast to %1 instead">,
7953  InGroup<Format>;
7954def warn_format_argument_needs_cast_pedantic : Warning<
7955  "%select{values of type|enum values with underlying type}2 '%0' should not "
7956  "be used as format arguments; add an explicit cast to %1 instead">,
7957  InGroup<FormatPedantic>, DefaultIgnore;
7958def warn_printf_positional_arg_exceeds_data_args : Warning <
7959  "data argument position '%0' exceeds the number of data arguments (%1)">,
7960  InGroup<Format>;
7961def warn_format_zero_positional_specifier : Warning<
7962  "position arguments in format strings start counting at 1 (not 0)">,
7963  InGroup<Format>;
7964def warn_format_invalid_positional_specifier : Warning<
7965  "invalid position specified for %select{field width|field precision}0">,
7966  InGroup<Format>;
7967def warn_format_mix_positional_nonpositional_args : Warning<
7968  "cannot mix positional and non-positional arguments in format string">,
7969  InGroup<Format>;
7970def warn_static_array_too_small : Warning<
7971  "array argument is too small; %select{contains %0 elements|is of size %0}2,"
7972  " callee requires at least %1">,
7973  InGroup<ArrayBounds>;
7974def note_callee_static_array : Note<
7975  "callee declares array parameter as static here">;
7976def warn_empty_format_string : Warning<
7977  "format string is empty">, InGroup<FormatZeroLength>;
7978def warn_format_string_is_wide_literal : Warning<
7979  "format string should not be a wide string">, InGroup<Format>;
7980def warn_printf_format_string_contains_null_char : Warning<
7981  "format string contains '\\0' within the string body">, InGroup<Format>;
7982def warn_printf_format_string_not_null_terminated : Warning<
7983  "format string is not null-terminated">, InGroup<Format>;
7984def warn_printf_asterisk_missing_arg : Warning<
7985  "'%select{*|.*}0' specified field %select{width|precision}0 is missing a matching 'int' argument">,
7986  InGroup<Format>;
7987def warn_printf_asterisk_wrong_type : Warning<
7988  "field %select{width|precision}0 should have type %1, but argument has type %2">,
7989  InGroup<Format>;
7990def warn_printf_nonsensical_optional_amount: Warning<
7991  "%select{field width|precision}0 used with '%1' conversion specifier, resulting in undefined behavior">,
7992  InGroup<Format>;
7993def warn_printf_nonsensical_flag: Warning<
7994  "flag '%0' results in undefined behavior with '%1' conversion specifier">,
7995  InGroup<Format>;
7996def warn_format_nonsensical_length: Warning<
7997  "length modifier '%0' results in undefined behavior or no effect with '%1' conversion specifier">,
7998  InGroup<Format>;
7999def warn_format_non_standard_positional_arg: Warning<
8000  "positional arguments are not supported by ISO C">, InGroup<FormatNonStandard>, DefaultIgnore;
8001def warn_format_non_standard: Warning<
8002  "'%0' %select{length modifier|conversion specifier}1 is not supported by ISO C">,
8003  InGroup<FormatNonStandard>, DefaultIgnore;
8004def warn_format_non_standard_conversion_spec: Warning<
8005  "using length modifier '%0' with conversion specifier '%1' is not supported by ISO C">,
8006  InGroup<FormatNonStandard>, DefaultIgnore;
8007def err_invalid_mask_type_size : Error<
8008  "mask type size must be between 1-byte and 8-bytes">;
8009def warn_format_invalid_annotation : Warning<
8010  "using '%0' format specifier annotation outside of os_log()/os_trace()">,
8011  InGroup<Format>;
8012def warn_format_P_no_precision : Warning<
8013  "using '%%P' format specifier without precision">,
8014  InGroup<Format>;
8015def warn_printf_ignored_flag: Warning<
8016  "flag '%0' is ignored when flag '%1' is present">,
8017  InGroup<Format>;
8018def warn_printf_empty_objc_flag: Warning<
8019  "missing object format flag">,
8020  InGroup<Format>;
8021def warn_printf_ObjCflags_without_ObjCConversion: Warning<
8022  "object format flags cannot be used with '%0' conversion specifier">,
8023  InGroup<Format>;
8024def warn_printf_invalid_objc_flag: Warning<
8025    "'%0' is not a valid object format flag">,
8026    InGroup<Format>;
8027def warn_scanf_scanlist_incomplete : Warning<
8028  "no closing ']' for '%%[' in scanf format string">,
8029  InGroup<Format>;
8030def note_format_string_defined : Note<"format string is defined here">;
8031def note_format_fix_specifier : Note<"did you mean to use '%0'?">;
8032def note_printf_c_str: Note<"did you mean to call the %0 method?">;
8033def note_format_security_fixit: Note<
8034  "treat the string as an argument to avoid this">;
8035
8036def warn_null_arg : Warning<
8037  "null passed to a callee that requires a non-null argument">,
8038  InGroup<NonNull>;
8039def warn_null_ret : Warning<
8040  "null returned from %select{function|method}0 that requires a non-null return value">,
8041  InGroup<NonNull>;
8042
8043def err_lifetimebound_no_object_param : Error<
8044  "'lifetimebound' attribute cannot be applied; %select{static |non-}0member "
8045  "function has no implicit object parameter">;
8046def err_lifetimebound_ctor_dtor : Error<
8047  "'lifetimebound' attribute cannot be applied to a "
8048  "%select{constructor|destructor}0">;
8049
8050// CHECK: returning address/reference of stack memory
8051def warn_ret_stack_addr_ref : Warning<
8052  "%select{address of|reference to}0 stack memory associated with "
8053  "%select{local variable|parameter}2 %1 returned">,
8054  InGroup<ReturnStackAddress>;
8055def warn_ret_local_temp_addr_ref : Warning<
8056  "returning %select{address of|reference to}0 local temporary object">,
8057  InGroup<ReturnStackAddress>;
8058def warn_ret_addr_label : Warning<
8059  "returning address of label, which is local">,
8060  InGroup<ReturnStackAddress>;
8061def err_ret_local_block : Error<
8062  "returning block that lives on the local stack">;
8063def note_local_var_initializer : Note<
8064  "%select{via initialization of|binding reference}0 variable "
8065  "%select{%2 |}1here">;
8066def note_init_with_default_member_initalizer : Note<
8067  "initializing field %0 with default member initializer">;
8068
8069// Check for initializing a member variable with the address or a reference to
8070// a constructor parameter.
8071def warn_bind_ref_member_to_parameter : Warning<
8072  "binding reference member %0 to stack allocated "
8073  "%select{variable|parameter}2 %1">, InGroup<DanglingField>;
8074def warn_init_ptr_member_to_parameter_addr : Warning<
8075  "initializing pointer member %0 with the stack address of "
8076  "%select{variable|parameter}2 %1">, InGroup<DanglingField>;
8077def note_ref_or_ptr_member_declared_here : Note<
8078  "%select{reference|pointer}0 member declared here">;
8079
8080def err_dangling_member : Error<
8081  "%select{reference|backing array for 'std::initializer_list'}2 "
8082  "%select{|subobject of }1member %0 "
8083  "%select{binds to|is}2 a temporary object "
8084  "whose lifetime would be shorter than the lifetime of "
8085  "the constructed object">;
8086def warn_dangling_member : Warning<
8087  "%select{reference|backing array for 'std::initializer_list'}2 "
8088  "%select{|subobject of }1member %0 "
8089  "%select{binds to|is}2 a temporary object "
8090  "whose lifetime is shorter than the lifetime of the constructed object">,
8091  InGroup<DanglingField>;
8092def note_lifetime_extending_member_declared_here : Note<
8093  "%select{%select{reference|'std::initializer_list'}0 member|"
8094  "member with %select{reference|'std::initializer_list'}0 subobject}1 "
8095  "declared here">;
8096def warn_dangling_variable : Warning<
8097  "%select{temporary %select{whose address is used as value of|"
8098  "%select{|implicitly }2bound to}4 "
8099  "%select{%select{|reference }4member of local variable|"
8100  "local %select{variable|reference}4}1|"
8101  "array backing "
8102  "%select{initializer list subobject of local variable|"
8103  "local initializer list}1}0 "
8104  "%select{%3 |}2will be destroyed at the end of the full-expression">,
8105  InGroup<Dangling>;
8106def warn_new_dangling_reference : Warning<
8107  "temporary bound to reference member of allocated object "
8108  "will be destroyed at the end of the full-expression">,
8109  InGroup<DanglingField>;
8110def warn_new_dangling_initializer_list : Warning<
8111  "array backing "
8112  "%select{initializer list subobject of the allocated object|"
8113  "the allocated initializer list}0 "
8114  "will be destroyed at the end of the full-expression">,
8115  InGroup<DanglingInitializerList>;
8116def warn_unsupported_lifetime_extension : Warning<
8117  "sorry, lifetime extension of "
8118  "%select{temporary|backing array of initializer list}0 created "
8119  "by aggregate initialization using default member initializer "
8120  "is not supported; lifetime of %select{temporary|backing array}0 "
8121  "will end at the end of the full-expression">, InGroup<Dangling>;
8122
8123// For non-floating point, expressions of the form x == x or x != x
8124// should result in a warning, since these always evaluate to a constant.
8125// Array comparisons have similar warnings
8126def warn_comparison_always : Warning<
8127  "%select{self-|array }0comparison always evaluates to %select{a constant|%2}1">,
8128  InGroup<TautologicalCompare>;
8129def warn_comparison_bitwise_always : Warning<
8130  "bitwise comparison always evaluates to %select{false|true}0">,
8131  InGroup<TautologicalCompare>;
8132def warn_tautological_overlap_comparison : Warning<
8133  "overlapping comparisons always evaluate to %select{false|true}0">,
8134  InGroup<TautologicalOverlapCompare>, DefaultIgnore;
8135
8136def warn_stringcompare : Warning<
8137  "result of comparison against %select{a string literal|@encode}0 is "
8138  "unspecified (use strncmp instead)">,
8139  InGroup<StringCompare>;
8140
8141def warn_identity_field_assign : Warning<
8142  "assigning %select{field|instance variable}0 to itself">,
8143  InGroup<SelfAssignmentField>;
8144
8145// Type safety attributes
8146def err_type_tag_for_datatype_not_ice : Error<
8147  "'type_tag_for_datatype' attribute requires the initializer to be "
8148  "an %select{integer|integral}0 constant expression">;
8149def err_type_tag_for_datatype_too_large : Error<
8150  "'type_tag_for_datatype' attribute requires the initializer to be "
8151  "an %select{integer|integral}0 constant expression "
8152  "that can be represented by a 64 bit integer">;
8153def err_tag_index_out_of_range : Error<
8154  "%select{type tag|argument}0 index %1 is greater than the number of arguments specified">;
8155def warn_type_tag_for_datatype_wrong_kind : Warning<
8156  "this type tag was not designed to be used with this function">,
8157  InGroup<TypeSafety>;
8158def warn_type_safety_type_mismatch : Warning<
8159  "argument type %0 doesn't match specified %1 type tag "
8160  "%select{that requires %3|}2">, InGroup<TypeSafety>;
8161def warn_type_safety_null_pointer_required : Warning<
8162  "specified %0 type tag requires a null pointer">, InGroup<TypeSafety>;
8163
8164// Generic selections.
8165def err_assoc_type_incomplete : Error<
8166  "type %0 in generic association incomplete">;
8167def err_assoc_type_nonobject : Error<
8168  "type %0 in generic association not an object type">;
8169def err_assoc_type_variably_modified : Error<
8170  "type %0 in generic association is a variably modified type">;
8171def err_assoc_compatible_types : Error<
8172  "type %0 in generic association compatible with previously specified type %1">;
8173def note_compat_assoc : Note<
8174  "compatible type %0 specified here">;
8175def err_generic_sel_no_match : Error<
8176  "controlling expression type %0 not compatible with any generic association type">;
8177def err_generic_sel_multi_match : Error<
8178  "controlling expression type %0 compatible with %1 generic association types">;
8179
8180
8181// Blocks
8182def err_blocks_disable : Error<"blocks support disabled - compile with -fblocks"
8183  " or %select{pick a deployment target that supports them|for OpenCL 2.0}0">;
8184def err_block_returning_array_function : Error<
8185  "block cannot return %select{array|function}0 type %1">;
8186
8187// Builtin annotation
8188def err_builtin_annotation_first_arg : Error<
8189  "first argument to __builtin_annotation must be an integer">;
8190def err_builtin_annotation_second_arg : Error<
8191  "second argument to __builtin_annotation must be a non-wide string constant">;
8192def err_msvc_annotation_wide_str : Error<
8193  "arguments to __annotation must be wide string constants">;
8194
8195// CFString checking
8196def err_cfstring_literal_not_string_constant : Error<
8197  "CFString literal is not a string constant">;
8198def warn_cfstring_truncated : Warning<
8199  "input conversion stopped due to an input byte that does not "
8200  "belong to the input codeset UTF-8">,
8201  InGroup<DiagGroup<"CFString-literal">>;
8202
8203// os_log checking
8204// TODO: separate diagnostic for os_trace()
8205def err_os_log_format_not_string_constant : Error<
8206  "os_log() format argument is not a string constant">;
8207def err_os_log_argument_too_big : Error<
8208  "os_log() argument %0 is too big (%1 bytes, max %2)">;
8209def warn_os_log_format_narg : Error<
8210 "os_log() '%%n' format specifier is not allowed">, DefaultError;
8211
8212// Statements.
8213def err_continue_not_in_loop : Error<
8214  "'continue' statement not in loop statement">;
8215def err_break_not_in_loop_or_switch : Error<
8216  "'break' statement not in loop or switch statement">;
8217def warn_loop_ctrl_binds_to_inner : Warning<
8218  "'%0' is bound to current loop, GCC binds it to the enclosing loop">,
8219  InGroup<GccCompat>;
8220def warn_break_binds_to_switch : Warning<
8221  "'break' is bound to loop, GCC binds it to switch">,
8222  InGroup<GccCompat>;
8223def err_default_not_in_switch : Error<
8224  "'default' statement not in switch statement">;
8225def err_case_not_in_switch : Error<"'case' statement not in switch statement">;
8226def warn_bool_switch_condition : Warning<
8227  "switch condition has boolean value">, InGroup<SwitchBool>;
8228def warn_case_value_overflow : Warning<
8229  "overflow converting case value to switch condition type (%0 to %1)">,
8230  InGroup<Switch>;
8231def err_duplicate_case : Error<"duplicate case value '%0'">;
8232def err_duplicate_case_differing_expr : Error<
8233  "duplicate case value: '%0' and '%1' both equal '%2'">;
8234def warn_case_empty_range : Warning<"empty case range specified">;
8235def warn_missing_case_for_condition :
8236  Warning<"no case matching constant switch condition '%0'">;
8237
8238def warn_def_missing_case : Warning<"%plural{"
8239  "1:enumeration value %1 not explicitly handled in switch|"
8240  "2:enumeration values %1 and %2 not explicitly handled in switch|"
8241  "3:enumeration values %1, %2, and %3 not explicitly handled in switch|"
8242  ":%0 enumeration values not explicitly handled in switch: %1, %2, %3...}0">,
8243  InGroup<SwitchEnum>, DefaultIgnore;
8244
8245def warn_missing_case : Warning<"%plural{"
8246  "1:enumeration value %1 not handled in switch|"
8247  "2:enumeration values %1 and %2 not handled in switch|"
8248  "3:enumeration values %1, %2, and %3 not handled in switch|"
8249  ":%0 enumeration values not handled in switch: %1, %2, %3...}0">,
8250  InGroup<Switch>;
8251
8252def warn_unannotated_fallthrough : Warning<
8253  "unannotated fall-through between switch labels">,
8254  InGroup<ImplicitFallthrough>, DefaultIgnore;
8255def warn_unannotated_fallthrough_per_function : Warning<
8256  "unannotated fall-through between switch labels in partly-annotated "
8257  "function">, InGroup<ImplicitFallthroughPerFunction>, DefaultIgnore;
8258def note_insert_fallthrough_fixit : Note<
8259  "insert '%0;' to silence this warning">;
8260def note_insert_break_fixit : Note<
8261  "insert 'break;' to avoid fall-through">;
8262def err_fallthrough_attr_wrong_target : Error<
8263  "%0 attribute is only allowed on empty statements">;
8264def note_fallthrough_insert_semi_fixit : Note<"did you forget ';'?">;
8265def err_fallthrough_attr_outside_switch : Error<
8266  "fallthrough annotation is outside switch statement">;
8267def err_fallthrough_attr_invalid_placement : Error<
8268  "fallthrough annotation does not directly precede switch label">;
8269def warn_fallthrough_attr_unreachable : Warning<
8270  "fallthrough annotation in unreachable code">,
8271  InGroup<ImplicitFallthrough>, DefaultIgnore;
8272
8273def warn_unreachable_default : Warning<
8274  "default label in switch which covers all enumeration values">,
8275  InGroup<CoveredSwitchDefault>, DefaultIgnore;
8276def warn_not_in_enum : Warning<"case value not in enumerated type %0">,
8277  InGroup<Switch>;
8278def warn_not_in_enum_assignment : Warning<"integer constant not in range "
8279  "of enumerated type %0">, InGroup<DiagGroup<"assign-enum">>, DefaultIgnore;
8280def err_typecheck_statement_requires_scalar : Error<
8281  "statement requires expression of scalar type (%0 invalid)">;
8282def err_typecheck_statement_requires_integer : Error<
8283  "statement requires expression of integer type (%0 invalid)">;
8284def err_multiple_default_labels_defined : Error<
8285  "multiple default labels in one switch">;
8286def err_switch_multiple_conversions : Error<
8287  "multiple conversions from switch condition type %0 to an integral or "
8288  "enumeration type">;
8289def note_switch_conversion : Note<
8290  "conversion to %select{integral|enumeration}0 type %1">;
8291def err_switch_explicit_conversion : Error<
8292  "switch condition type %0 requires explicit conversion to %1">;
8293def err_switch_incomplete_class_type : Error<
8294  "switch condition has incomplete class type %0">;
8295
8296def warn_empty_if_body : Warning<
8297  "if statement has empty body">, InGroup<EmptyBody>;
8298def warn_empty_for_body : Warning<
8299  "for loop has empty body">, InGroup<EmptyBody>;
8300def warn_empty_range_based_for_body : Warning<
8301  "range-based for loop has empty body">, InGroup<EmptyBody>;
8302def warn_empty_while_body : Warning<
8303  "while loop has empty body">, InGroup<EmptyBody>;
8304def warn_empty_switch_body : Warning<
8305  "switch statement has empty body">, InGroup<EmptyBody>;
8306def note_empty_body_on_separate_line : Note<
8307  "put the semicolon on a separate line to silence this warning">;
8308
8309def err_va_start_captured_stmt : Error<
8310  "'va_start' cannot be used in a captured statement">;
8311def err_va_start_outside_function : Error<
8312  "'va_start' cannot be used outside a function">;
8313def err_va_start_fixed_function : Error<
8314  "'va_start' used in function with fixed args">;
8315def err_va_start_used_in_wrong_abi_function : Error<
8316  "'va_start' used in %select{System V|Win64}0 ABI function">;
8317def err_ms_va_start_used_in_sysv_function : Error<
8318  "'__builtin_ms_va_start' used in System V ABI function">;
8319def warn_second_arg_of_va_start_not_last_named_param : Warning<
8320  "second argument to 'va_start' is not the last named parameter">,
8321  InGroup<Varargs>;
8322def warn_va_start_type_is_undefined : Warning<
8323  "passing %select{an object that undergoes default argument promotion|"
8324  "an object of reference type|a parameter declared with the 'register' "
8325  "keyword}0 to 'va_start' has undefined behavior">, InGroup<Varargs>;
8326def err_first_argument_to_va_arg_not_of_type_va_list : Error<
8327  "first argument to 'va_arg' is of type %0 and not 'va_list'">;
8328def err_second_parameter_to_va_arg_incomplete: Error<
8329  "second argument to 'va_arg' is of incomplete type %0">;
8330def err_second_parameter_to_va_arg_abstract: Error<
8331  "second argument to 'va_arg' is of abstract type %0">;
8332def warn_second_parameter_to_va_arg_not_pod : Warning<
8333  "second argument to 'va_arg' is of non-POD type %0">,
8334  InGroup<NonPODVarargs>, DefaultError;
8335def warn_second_parameter_to_va_arg_ownership_qualified : Warning<
8336  "second argument to 'va_arg' is of ARC ownership-qualified type %0">,
8337  InGroup<NonPODVarargs>, DefaultError;
8338def warn_second_parameter_to_va_arg_never_compatible : Warning<
8339  "second argument to 'va_arg' is of promotable type %0; this va_arg has "
8340  "undefined behavior because arguments will be promoted to %1">, InGroup<Varargs>;
8341
8342def warn_return_missing_expr : Warning<
8343  "non-void %select{function|method}1 %0 should return a value">, DefaultError,
8344  InGroup<ReturnType>;
8345def ext_return_missing_expr : ExtWarn<
8346  "non-void %select{function|method}1 %0 should return a value">, DefaultError,
8347  InGroup<ReturnType>;
8348def ext_return_has_expr : ExtWarn<
8349  "%select{void function|void method|constructor|destructor}1 %0 "
8350  "should not return a value">,
8351  DefaultError, InGroup<ReturnType>;
8352def ext_return_has_void_expr : Extension<
8353  "void %select{function|method|block}1 %0 should not return void expression">;
8354def err_return_init_list : Error<
8355  "%select{void function|void method|constructor|destructor}1 %0 "
8356  "must not return a value">;
8357def err_ctor_dtor_returns_void : Error<
8358  "%select{constructor|destructor}1 %0 must not return void expression">;
8359def warn_noreturn_function_has_return_expr : Warning<
8360  "function %0 declared 'noreturn' should not return">,
8361  InGroup<InvalidNoreturn>;
8362def warn_falloff_noreturn_function : Warning<
8363  "function declared 'noreturn' should not return">,
8364  InGroup<InvalidNoreturn>;
8365def err_noreturn_block_has_return_expr : Error<
8366  "block declared 'noreturn' should not return">;
8367def err_noreturn_missing_on_first_decl : Error<
8368  "function declared '[[noreturn]]' after its first declaration">;
8369def note_noreturn_missing_first_decl : Note<
8370  "declaration missing '[[noreturn]]' attribute is here">;
8371def err_carries_dependency_missing_on_first_decl : Error<
8372  "%select{function|parameter}0 declared '[[carries_dependency]]' "
8373  "after its first declaration">;
8374def note_carries_dependency_missing_first_decl : Note<
8375  "declaration missing '[[carries_dependency]]' attribute is here">;
8376def err_carries_dependency_param_not_function_decl : Error<
8377  "'[[carries_dependency]]' attribute only allowed on parameter in a function "
8378  "declaration or lambda">;
8379def err_block_on_nonlocal : Error<
8380  "__block attribute not allowed, only allowed on local variables">;
8381def err_block_on_vm : Error<
8382  "__block attribute not allowed on declaration with a variably modified type">;
8383
8384def err_vec_builtin_non_vector : Error<
8385 "first two arguments to %0 must be vectors">;
8386def err_vec_builtin_incompatible_vector : Error<
8387  "first two arguments to %0 must have the same type">;
8388def err_vsx_builtin_nonconstant_argument : Error<
8389  "argument %0 to %1 must be a 2-bit unsigned literal (i.e. 0, 1, 2 or 3)">;
8390
8391def err_shufflevector_nonconstant_argument : Error<
8392  "index for __builtin_shufflevector must be a constant integer">;
8393def err_shufflevector_argument_too_large : Error<
8394  "index for __builtin_shufflevector must be less than the total number "
8395  "of vector elements">;
8396
8397def err_convertvector_non_vector : Error<
8398  "first argument to __builtin_convertvector must be a vector">;
8399def err_convertvector_non_vector_type : Error<
8400  "second argument to __builtin_convertvector must be a vector type">;
8401def err_convertvector_incompatible_vector : Error<
8402  "first two arguments to __builtin_convertvector must have the same number of elements">;
8403
8404def err_first_argument_to_cwsc_not_call : Error<
8405  "first argument to __builtin_call_with_static_chain must be a non-member call expression">;
8406def err_first_argument_to_cwsc_block_call : Error<
8407  "first argument to __builtin_call_with_static_chain must not be a block call">;
8408def err_first_argument_to_cwsc_builtin_call : Error<
8409  "first argument to __builtin_call_with_static_chain must not be a builtin call">;
8410def err_first_argument_to_cwsc_pdtor_call : Error<
8411  "first argument to __builtin_call_with_static_chain must not be a pseudo-destructor call">;
8412def err_second_argument_to_cwsc_not_pointer : Error<
8413  "second argument to __builtin_call_with_static_chain must be of pointer type">;
8414
8415def err_vector_incorrect_num_initializers : Error<
8416  "%select{too many|too few}0 elements in vector initialization (expected %1 elements, have %2)">;
8417def err_altivec_empty_initializer : Error<"expected initializer">;
8418
8419def err_invalid_neon_type_code : Error<
8420  "incompatible constant for this __builtin_neon function">;
8421def err_argument_invalid_range : Error<
8422  "argument value %0 is outside the valid range [%1, %2]">;
8423def warn_argument_invalid_range : Warning<
8424  "argument value %0 is outside the valid range [%1, %2]">, DefaultError,
8425  InGroup<DiagGroup<"argument-outside-range">>;
8426def err_argument_not_multiple : Error<
8427  "argument should be a multiple of %0">;
8428def warn_neon_vector_initializer_non_portable : Warning<
8429  "vector initializers are not compatible with NEON intrinsics in big endian "
8430  "mode">, InGroup<DiagGroup<"nonportable-vector-initialization">>;
8431def note_neon_vector_initializer_non_portable : Note<
8432  "consider using vld1_%0%1() to initialize a vector from memory, or "
8433  "vcreate_%0%1() to initialize from an integer constant">;
8434def note_neon_vector_initializer_non_portable_q : Note<
8435  "consider using vld1q_%0%1() to initialize a vector from memory, or "
8436  "vcombine_%0%1(vcreate_%0%1(), vcreate_%0%1()) to initialize from integer "
8437  "constants">;
8438def err_systemz_invalid_tabort_code : Error<
8439  "invalid transaction abort code">;
8440def err_64_bit_builtin_32_bit_tgt : Error<
8441  "this builtin is only available on 64-bit targets">;
8442def err_32_bit_builtin_64_bit_tgt : Error<
8443  "this builtin is only available on 32-bit targets">;
8444def err_builtin_x64_aarch64_only : Error<
8445  "this builtin is only available on x86-64 and aarch64 targets">;
8446def err_ppc_builtin_only_on_pwr7 : Error<
8447  "this builtin is only valid on POWER7 or later CPUs">;
8448def err_x86_builtin_invalid_rounding : Error<
8449  "invalid rounding argument">;
8450def err_x86_builtin_invalid_scale : Error<
8451  "scale argument must be 1, 2, 4, or 8">;
8452def err_hexagon_builtin_unsupported_cpu : Error<
8453  "builtin is not supported on this CPU">;
8454def err_hexagon_builtin_requires_hvx : Error<
8455  "builtin requires HVX">;
8456def err_hexagon_builtin_unsupported_hvx : Error<
8457  "builtin is not supported on this version of HVX">;
8458
8459def err_builtin_target_unsupported : Error<
8460  "builtin is not supported on this target">;
8461def err_builtin_longjmp_unsupported : Error<
8462  "__builtin_longjmp is not supported for the current target">;
8463def err_builtin_setjmp_unsupported : Error<
8464  "__builtin_setjmp is not supported for the current target">;
8465
8466def err_builtin_longjmp_invalid_val : Error<
8467  "argument to __builtin_longjmp must be a constant 1">;
8468def err_builtin_requires_language : Error<"'%0' is only available in %1">;
8469
8470def err_constant_integer_arg_type : Error<
8471  "argument to %0 must be a constant integer">;
8472
8473def ext_mixed_decls_code : Extension<
8474  "ISO C90 forbids mixing declarations and code">,
8475  InGroup<DiagGroup<"declaration-after-statement">>;
8476
8477def err_non_local_variable_decl_in_for : Error<
8478  "declaration of non-local variable in 'for' loop">;
8479def err_non_variable_decl_in_for : Error<
8480  "non-variable declaration in 'for' loop">;
8481def err_toomany_element_decls : Error<
8482  "only one element declaration is allowed">;
8483def err_selector_element_not_lvalue : Error<
8484  "selector element is not a valid lvalue">;
8485def err_selector_element_type : Error<
8486  "selector element type %0 is not a valid object">;
8487def err_selector_element_const_type : Error<
8488  "selector element of type %0 cannot be a constant l-value expression">;
8489def err_collection_expr_type : Error<
8490  "the type %0 is not a pointer to a fast-enumerable object">;
8491def warn_collection_expr_type : Warning<
8492  "collection expression type %0 may not respond to %1">;
8493
8494def err_invalid_conversion_between_ext_vectors : Error<
8495  "invalid conversion between ext-vector type %0 and %1">;
8496
8497def warn_duplicate_attribute_exact : Warning<
8498  "attribute %0 is already applied">, InGroup<IgnoredAttributes>;
8499
8500def warn_duplicate_attribute : Warning<
8501  "attribute %0 is already applied with different parameters">,
8502  InGroup<IgnoredAttributes>;
8503
8504def warn_sync_fetch_and_nand_semantics_change : Warning<
8505  "the semantics of this intrinsic changed with GCC "
8506  "version 4.4 - the newer semantics are provided here">,
8507  InGroup<DiagGroup<"sync-fetch-and-nand-semantics-changed">>;
8508
8509// Type
8510def ext_invalid_sign_spec : Extension<"'%0' cannot be signed or unsigned">;
8511def warn_receiver_forward_class : Warning<
8512    "receiver %0 is a forward class and corresponding @interface may not exist">,
8513    InGroup<ForwardClassReceiver>;
8514def note_method_sent_forward_class : Note<"method %0 is used for the forward class">;
8515def ext_missing_declspec : ExtWarn<
8516  "declaration specifier missing, defaulting to 'int'">;
8517def ext_missing_type_specifier : ExtWarn<
8518  "type specifier missing, defaults to 'int'">,
8519  InGroup<ImplicitInt>;
8520def err_decimal_unsupported : Error<
8521  "GNU decimal type extension not supported">;
8522def err_missing_type_specifier : Error<
8523  "C++ requires a type specifier for all declarations">;
8524def err_objc_array_of_interfaces : Error<
8525  "array of interface %0 is invalid (probably should be an array of pointers)">;
8526def ext_c99_array_usage : Extension<
8527  "%select{qualifier in |static |}0array size %select{||'[*] '}0is a C99 "
8528  "feature">, InGroup<C99>;
8529def err_c99_array_usage_cxx : Error<
8530  "%select{qualifier in |static |}0array size %select{||'[*] '}0is a C99 "
8531  "feature, not permitted in C++">;
8532def err_type_unsupported : Error<
8533  "%0 is not supported on this target">;
8534def err_nsconsumed_attribute_mismatch : Error<
8535  "overriding method has mismatched ns_consumed attribute on its"
8536  " parameter">;
8537def err_nsreturns_retained_attribute_mismatch : Error<
8538  "overriding method has mismatched ns_returns_%select{not_retained|retained}0"
8539  " attributes">;
8540def warn_nsconsumed_attribute_mismatch : Warning<
8541  err_nsconsumed_attribute_mismatch.Text>, InGroup<NSConsumedMismatch>;
8542def warn_nsreturns_retained_attribute_mismatch : Warning<
8543  err_nsreturns_retained_attribute_mismatch.Text>, InGroup<NSReturnsMismatch>;
8544
8545def note_getter_unavailable : Note<
8546  "or because setter is declared here, but no getter method %0 is found">;
8547def err_invalid_protocol_qualifiers : Error<
8548  "invalid protocol qualifiers on non-ObjC type">;
8549def warn_ivar_use_hidden : Warning<
8550  "local declaration of %0 hides instance variable">,
8551   InGroup<ShadowIvar>;
8552def warn_direct_initialize_call : Warning<
8553  "explicit call to +initialize results in duplicate call to +initialize">,
8554   InGroup<ExplicitInitializeCall>;
8555def warn_direct_super_initialize_call : Warning<
8556  "explicit call to [super initialize] should only be in implementation "
8557  "of +initialize">,
8558   InGroup<ExplicitInitializeCall>;
8559def err_ivar_use_in_class_method : Error<
8560  "instance variable %0 accessed in class method">;
8561def err_private_ivar_access : Error<"instance variable %0 is private">,
8562  AccessControl;
8563def err_protected_ivar_access : Error<"instance variable %0 is protected">,
8564  AccessControl;
8565def warn_maynot_respond : Warning<"%0 may not respond to %1">;
8566def ext_typecheck_base_super : Warning<
8567  "method parameter type "
8568  "%diff{$ does not match super class method parameter type $|"
8569  "does not match super class method parameter type}0,1">,
8570   InGroup<SuperSubClassMismatch>, DefaultIgnore;
8571def warn_missing_method_return_type : Warning<
8572  "method has no return type specified; defaults to 'id'">,
8573  InGroup<MissingMethodReturnType>, DefaultIgnore;
8574def warn_direct_ivar_access : Warning<"instance variable %0 is being "
8575  "directly accessed">, InGroup<DiagGroup<"direct-ivar-access">>, DefaultIgnore;
8576
8577// Spell-checking diagnostics
8578def err_unknown_typename : Error<
8579  "unknown type name %0">;
8580def err_unknown_type_or_class_name_suggest : Error<
8581  "unknown %select{type|class}1 name %0; did you mean %2?">;
8582def err_unknown_typename_suggest : Error<
8583  "unknown type name %0; did you mean %1?">;
8584def err_unknown_nested_typename_suggest : Error<
8585  "no type named %0 in %1; did you mean %select{|simply }2%3?">;
8586def err_no_member_suggest : Error<"no member named %0 in %1; did you mean %select{|simply }2%3?">;
8587def err_undeclared_use_suggest : Error<
8588  "use of undeclared %0; did you mean %1?">;
8589def err_undeclared_var_use_suggest : Error<
8590  "use of undeclared identifier %0; did you mean %1?">;
8591def err_no_template : Error<"no template named %0">;
8592def err_no_template_suggest : Error<"no template named %0; did you mean %1?">;
8593def err_no_member_template : Error<"no template named %0 in %1">;
8594def err_no_member_template_suggest : Error<
8595  "no template named %0 in %1; did you mean %select{|simply }2%3?">;
8596def err_non_template_in_template_id : Error<
8597  "%0 does not name a template but is followed by template arguments">;
8598def err_non_template_in_template_id_suggest : Error<
8599  "%0 does not name a template but is followed by template arguments; "
8600  "did you mean %1?">;
8601def err_non_template_in_member_template_id_suggest : Error<
8602  "member %0 of %1 is not a template; did you mean %select{|simply }2%3?">;
8603def note_non_template_in_template_id_found : Note<
8604  "non-template declaration found by name lookup">;
8605def err_mem_init_not_member_or_class_suggest : Error<
8606  "initializer %0 does not name a non-static data member or base "
8607  "class; did you mean the %select{base class|member}1 %2?">;
8608def err_field_designator_unknown_suggest : Error<
8609  "field designator %0 does not refer to any field in type %1; did you mean "
8610  "%2?">;
8611def err_typecheck_member_reference_ivar_suggest : Error<
8612  "%0 does not have a member named %1; did you mean %2?">;
8613def err_property_not_found_suggest : Error<
8614  "property %0 not found on object of type %1; did you mean %2?">;
8615def err_class_property_found : Error<
8616  "property %0 is a class property; did you mean to access it with class '%1'?">;
8617def err_ivar_access_using_property_syntax_suggest : Error<
8618  "property %0 not found on object of type %1; did you mean to access instance variable %2?">;
8619def warn_property_access_suggest : Warning<
8620"property %0 not found on object of type %1; did you mean to access property %2?">,
8621InGroup<PropertyAccessDotSyntax>;
8622def err_property_found_suggest : Error<
8623  "property %0 found on object of type %1; did you mean to access "
8624  "it with the \".\" operator?">;
8625def err_undef_interface_suggest : Error<
8626  "cannot find interface declaration for %0; did you mean %1?">;
8627def warn_undef_interface_suggest : Warning<
8628  "cannot find interface declaration for %0; did you mean %1?">;
8629def err_undef_superclass_suggest : Error<
8630  "cannot find interface declaration for %0, superclass of %1; did you mean "
8631  "%2?">;
8632def err_undeclared_protocol_suggest : Error<
8633  "cannot find protocol declaration for %0; did you mean %1?">;
8634def note_base_class_specified_here : Note<
8635  "base class %0 specified here">;
8636def err_using_directive_suggest : Error<
8637  "no namespace named %0; did you mean %1?">;
8638def err_using_directive_member_suggest : Error<
8639  "no namespace named %0 in %1; did you mean %select{|simply }2%3?">;
8640def note_namespace_defined_here : Note<"namespace %0 defined here">;
8641def err_sizeof_pack_no_pack_name_suggest : Error<
8642  "%0 does not refer to the name of a parameter pack; did you mean %1?">;
8643def note_parameter_pack_here : Note<"parameter pack %0 declared here">;
8644
8645def err_uncasted_use_of_unknown_any : Error<
8646  "%0 has unknown type; cast it to its declared type to use it">;
8647def err_uncasted_call_of_unknown_any : Error<
8648  "%0 has unknown return type; cast the call to its declared return type">;
8649def err_uncasted_send_to_unknown_any_method : Error<
8650  "no known method %select{%objcinstance1|%objcclass1}0; cast the "
8651  "message send to the method's return type">;
8652def err_unsupported_unknown_any_decl : Error<
8653  "%0 has unknown type, which is not supported for this kind of declaration">;
8654def err_unsupported_unknown_any_expr : Error<
8655  "unsupported expression with unknown type">;
8656def err_unsupported_unknown_any_call : Error<
8657  "call to unsupported expression with unknown type">;
8658def err_unknown_any_addrof : Error<
8659  "the address of a declaration with unknown type "
8660  "can only be cast to a pointer type">;
8661def err_unknown_any_addrof_call : Error<
8662  "address-of operator cannot be applied to a call to a function with "
8663  "unknown return type">;
8664def err_unknown_any_var_function_type : Error<
8665  "variable %0 with unknown type cannot be given a function type">;
8666def err_unknown_any_function : Error<
8667  "function %0 with unknown type must be given a function type">;
8668
8669def err_filter_expression_integral : Error<
8670  "filter expression type should be an integral value not %0">;
8671
8672def err_non_asm_stmt_in_naked_function : Error<
8673  "non-ASM statement in naked function is not supported">;
8674def err_asm_naked_this_ref : Error<
8675  "'this' pointer references not allowed in naked functions">;
8676def err_asm_naked_parm_ref : Error<
8677  "parameter references not allowed in naked functions">;
8678
8679// OpenCL warnings and errors.
8680def err_invalid_astype_of_different_size : Error<
8681  "invalid reinterpretation: sizes of %0 and %1 must match">;
8682def err_static_kernel : Error<
8683  "kernel functions cannot be declared static">;
8684def err_method_kernel : Error<
8685  "kernel functions cannot be class members">;
8686def err_template_kernel : Error<
8687  "kernel functions cannot be used in a template declaration, instantiation or specialization">;
8688def err_opencl_ptrptr_kernel_param : Error<
8689  "kernel parameter cannot be declared as a pointer to a pointer">;
8690def err_kernel_arg_address_space : Error<
8691  "pointer arguments to kernel functions must reside in '__global', "
8692  "'__constant' or '__local' address space">;
8693def err_opencl_ext_vector_component_invalid_length : Error<
8694  "vector component access has invalid length %0.  Supported: 1,2,3,4,8,16.">;
8695def err_opencl_function_variable : Error<
8696  "%select{non-kernel function|function scope}0 variable cannot be declared in %1 address space">;
8697def err_opencl_addrspace_scope : Error<
8698  "variables in the %0 address space can only be declared in the outermost "
8699  "scope of a kernel function">;
8700def err_static_function_scope : Error<
8701  "variables in function scope cannot be declared static">;
8702def err_opencl_bitfields : Error<
8703  "bit-fields are not supported in OpenCL">;
8704def err_opencl_vla : Error<
8705  "variable length arrays are not supported in OpenCL">;
8706def err_opencl_scalar_type_rank_greater_than_vector_type : Error<
8707    "scalar operand type has greater rank than the type of the vector "
8708    "element. (%0 and %1)">;
8709def err_bad_kernel_param_type : Error<
8710  "%0 cannot be used as the type of a kernel parameter">;
8711def err_opencl_implicit_function_decl : Error<
8712  "implicit declaration of function %0 is invalid in OpenCL">;
8713def err_record_with_pointers_kernel_param : Error<
8714  "%select{struct|union}0 kernel parameters may not contain pointers">;
8715def note_within_field_of_type : Note<
8716  "within field of type %0 declared here">;
8717def note_illegal_field_declared_here : Note<
8718  "field of illegal %select{type|pointer type}0 %1 declared here">;
8719def err_opencl_type_struct_or_union_field : Error<
8720  "the %0 type cannot be used to declare a structure or union field">;
8721def err_event_t_addr_space_qual : Error<
8722  "the event_t type can only be used with __private address space qualifier">;
8723def err_expected_kernel_void_return_type : Error<
8724  "kernel must have void return type">;
8725def err_sampler_initializer_not_integer : Error<
8726  "sampler_t initialization requires 32-bit integer, not %0">;
8727def warn_sampler_initializer_invalid_bits : Warning<
8728  "sampler initializer has invalid %0 bits">, InGroup<SpirCompat>, DefaultIgnore;
8729def err_sampler_argument_required : Error<
8730  "sampler_t variable required - got %0">;
8731def err_wrong_sampler_addressspace: Error<
8732  "sampler type cannot be used with the __local and __global address space qualifiers">;
8733def err_opencl_nonconst_global_sampler : Error<
8734  "global sampler requires a const or constant address space qualifier">;
8735def err_opencl_cast_non_zero_to_event_t : Error<
8736  "cannot cast non-zero value '%0' to 'event_t'">;
8737def err_opencl_global_invalid_addr_space : Error<
8738  "%select{program scope|static local|extern}0 variable must reside in %1 address space">;
8739def err_missing_actual_pipe_type : Error<
8740  "missing actual type specifier for pipe">;
8741def err_reference_pipe_type : Error <
8742  "pipes packet types cannot be of reference type">;
8743def err_opencl_no_main : Error<"%select{function|kernel}0 cannot be called 'main'">;
8744def err_opencl_kernel_attr :
8745  Error<"attribute %0 can only be applied to an OpenCL kernel function">;
8746def err_opencl_return_value_with_address_space : Error<
8747  "return value cannot be qualified with address space">;
8748def err_opencl_constant_no_init : Error<
8749  "variable in constant address space must be initialized">;
8750def err_opencl_atomic_init: Error<
8751  "atomic variable can be %select{assigned|initialized}0 to a variable only "
8752  "in global address space">;
8753def err_opencl_implicit_vector_conversion : Error<
8754  "implicit conversions between vector types (%0 and %1) are not permitted">;
8755def err_opencl_invalid_type_array : Error<
8756  "array of %0 type is invalid in OpenCL">;
8757def err_opencl_ternary_with_block : Error<
8758  "block type cannot be used as expression in ternary expression in OpenCL">;
8759def err_opencl_pointer_to_type : Error<
8760  "pointer to type %0 is invalid in OpenCL">;
8761def err_opencl_type_can_only_be_used_as_function_parameter : Error <
8762  "type %0 can only be used as a function parameter in OpenCL">;
8763def warn_opencl_attr_deprecated_ignored : Warning <
8764  "%0 attribute is deprecated and ignored in OpenCL version %1">,
8765  InGroup<IgnoredAttributes>;
8766def err_opencl_variadic_function : Error<
8767  "invalid prototype, variadic arguments are not allowed in OpenCL">;
8768def err_opencl_requires_extension : Error<
8769  "use of %select{type|declaration}0 %1 requires %2 extension to be enabled">;
8770def warn_opencl_generic_address_space_arg : Warning<
8771  "passing non-generic address space pointer to %0"
8772  " may cause dynamic conversion affecting performance">,
8773  InGroup<Conversion>, DefaultIgnore;
8774
8775// OpenCL v2.0 s6.13.6 -- Builtin Pipe Functions
8776def err_opencl_builtin_pipe_first_arg : Error<
8777  "first argument to %0 must be a pipe type">;
8778def err_opencl_builtin_pipe_arg_num : Error<
8779  "invalid number of arguments to function: %0">;
8780def err_opencl_builtin_pipe_invalid_arg : Error<
8781  "invalid argument type to function %0 (expecting %1 having %2)">;
8782def err_opencl_builtin_pipe_invalid_access_modifier : Error<
8783  "invalid pipe access modifier (expecting %0)">;
8784
8785// OpenCL access qualifier
8786def err_opencl_invalid_access_qualifier : Error<
8787  "access qualifier can only be used for pipe and image type">;
8788def err_opencl_invalid_read_write : Error<
8789  "access qualifier %0 can not be used for %1 %select{|prior to OpenCL version 2.0}2">;
8790def err_opencl_multiple_access_qualifiers : Error<
8791  "multiple access qualifiers">;
8792def note_opencl_typedef_access_qualifier : Note<
8793  "previously declared '%0' here">;
8794
8795// OpenCL v2.0 s6.12.5 Blocks restrictions
8796def err_opencl_block_storage_type : Error<
8797  "the __block storage type is not permitted">;
8798def err_opencl_invalid_block_declaration : Error<
8799  "invalid block variable declaration - must be %select{const qualified|initialized}0">;
8800def err_opencl_extern_block_declaration : Error<
8801  "invalid block variable declaration - using 'extern' storage class is disallowed">;
8802def err_opencl_block_ref_block : Error<
8803  "cannot refer to a block inside block">;
8804
8805// OpenCL v2.0 s6.13.9 - Address space qualifier functions.
8806def err_opencl_builtin_to_addr_arg_num : Error<
8807  "invalid number of arguments to function: %0">;
8808def err_opencl_builtin_to_addr_invalid_arg : Error<
8809  "invalid argument %0 to function: %1, expecting a generic pointer argument">;
8810
8811// OpenCL v2.0 s6.13.17 Enqueue kernel restrictions.
8812def err_opencl_enqueue_kernel_incorrect_args : Error<
8813  "illegal call to enqueue_kernel, incorrect argument types">;
8814def err_opencl_enqueue_kernel_local_size_args : Error<
8815  "mismatch in number of block parameters and local size arguments passed">;
8816def err_opencl_enqueue_kernel_invalid_local_size_type : Error<
8817  "illegal call to enqueue_kernel, parameter needs to be specified as integer type">;
8818def err_opencl_enqueue_kernel_blocks_non_local_void_args : Error<
8819  "blocks used in enqueue_kernel call are expected to have parameters of type 'local void*'">;
8820def err_opencl_enqueue_kernel_blocks_no_args : Error<
8821  "blocks with parameters are not accepted in this prototype of enqueue_kernel call">;
8822
8823def err_opencl_builtin_expected_type : Error<
8824  "illegal call to %0, expected %1 argument type">;
8825
8826// OpenCL v2.2 s2.1.2.3 - Vector Component Access
8827def ext_opencl_ext_vector_type_rgba_selector: ExtWarn<
8828  "vector component name '%0' is an OpenCL version 2.2 feature">,
8829  InGroup<OpenCLUnsupportedRGBA>;
8830
8831def err_openclcxx_placement_new : Error<
8832  "use of placement new requires explicit declaration">;
8833
8834// MIG routine annotations.
8835def warn_mig_server_routine_does_not_return_kern_return_t : Warning<
8836  "'mig_server_routine' attribute only applies to routines that return a kern_return_t">,
8837  InGroup<IgnoredAttributes>;
8838} // end of sema category
8839
8840let CategoryName = "OpenMP Issue" in {
8841// OpenMP support.
8842def err_omp_expected_var_arg : Error<
8843  "%0 is not a global variable, static local variable or static data member">;
8844def err_omp_expected_var_arg_suggest : Error<
8845  "%0 is not a global variable, static local variable or static data member; "
8846  "did you mean %1">;
8847def err_omp_global_var_arg : Error<
8848  "arguments of '#pragma omp %0' must have %select{global storage|static storage duration}1">;
8849def err_omp_ref_type_arg : Error<
8850  "arguments of '#pragma omp %0' cannot be of reference type %1">;
8851def err_omp_region_not_file_context : Error<
8852  "directive must be at file or namespace scope">;
8853def err_omp_var_scope : Error<
8854  "'#pragma omp %0' must appear in the scope of the %q1 variable declaration">;
8855def err_omp_var_used : Error<
8856  "'#pragma omp %0' must precede all references to variable %q1">;
8857def err_omp_var_thread_local : Error<
8858  "variable %0 cannot be threadprivate because it is %select{thread-local|a global named register variable}1">;
8859def err_omp_private_incomplete_type : Error<
8860  "a private variable with incomplete type %0">;
8861def err_omp_firstprivate_incomplete_type : Error<
8862  "a firstprivate variable with incomplete type %0">;
8863def err_omp_lastprivate_incomplete_type : Error<
8864  "a lastprivate variable with incomplete type %0">;
8865def err_omp_reduction_incomplete_type : Error<
8866  "a reduction list item with incomplete type %0">;
8867def err_omp_unexpected_clause_value : Error<
8868  "expected %0 in OpenMP clause '%1'">;
8869def err_omp_expected_var_name_member_expr : Error<
8870  "expected variable name%select{| or data member of current class}0">;
8871def err_omp_expected_var_name_member_expr_or_array_item : Error<
8872  "expected variable name%select{|, data member of current class}0, array element or array section">;
8873def err_omp_expected_addressable_lvalue_or_array_item : Error<
8874  "expected addressable lvalue expression, array element or array section">;
8875def err_omp_expected_named_var_member_or_array_expression: Error<
8876  "expected expression containing only member accesses and/or array sections based on named variables">;
8877def err_omp_bit_fields_forbidden_in_clause : Error<
8878  "bit fields cannot be used to specify storage in a '%0' clause">;
8879def err_array_section_does_not_specify_contiguous_storage : Error<
8880  "array section does not specify contiguous storage">;
8881def err_omp_union_type_not_allowed : Error<
8882  "mapping of union members is not allowed">;
8883def err_omp_expected_access_to_data_field : Error<
8884  "expected access to data field">;
8885def err_omp_multiple_array_items_in_map_clause : Error<
8886  "multiple array elements associated with the same variable are not allowed in map clauses of the same construct">;
8887def err_omp_duplicate_map_type_modifier : Error<
8888  "same map type modifier has been specified more than once">;
8889def err_omp_pointer_mapped_along_with_derived_section : Error<
8890  "pointer cannot be mapped along with a section derived from itself">;
8891def err_omp_original_storage_is_shared_and_does_not_contain : Error<
8892  "original storage of expression in data environment is shared but data environment do not fully contain mapped expression storage">;
8893def err_omp_same_pointer_dereferenced : Error<
8894  "same pointer dereferenced in multiple different ways in map clause expressions">;
8895def note_omp_task_predetermined_firstprivate_here : Note<
8896  "predetermined as a firstprivate in a task construct here">;
8897def err_omp_threadprivate_incomplete_type : Error<
8898  "threadprivate variable with incomplete type %0">;
8899def err_omp_no_dsa_for_variable : Error<
8900  "variable %0 must have explicitly specified data sharing attributes">;
8901def note_omp_default_dsa_none : Note<
8902  "explicit data sharing attribute requested here">;
8903def err_omp_wrong_dsa : Error<
8904  "%0 variable cannot be %1">;
8905def err_omp_variably_modified_type_not_supported : Error<
8906  "arguments of OpenMP clause '%0' in '#pragma omp %2' directive cannot be of variably-modified type %1">;
8907def note_omp_explicit_dsa : Note<
8908  "defined as %0">;
8909def note_omp_predetermined_dsa : Note<
8910  "%select{static data member is predetermined as shared|"
8911  "variable with static storage duration is predetermined as shared|"
8912  "loop iteration variable is predetermined as private|"
8913  "loop iteration variable is predetermined as linear|"
8914  "loop iteration variable is predetermined as lastprivate|"
8915  "constant variable is predetermined as shared|"
8916  "global variable is predetermined as shared|"
8917  "non-shared variable in a task construct is predetermined as firstprivate|"
8918  "variable with automatic storage duration is predetermined as private}0"
8919  "%select{|; perhaps you forget to enclose 'omp %2' directive into a parallel or another task region?}1">;
8920def note_omp_implicit_dsa : Note<
8921  "implicitly determined as %0">;
8922def err_omp_loop_var_dsa : Error<
8923  "loop iteration variable in the associated loop of 'omp %1' directive may not be %0, predetermined as %2">;
8924def err_omp_not_for : Error<
8925  "%select{statement after '#pragma omp %1' must be a for loop|"
8926  "expected %2 for loops after '#pragma omp %1'%select{|, but found only %4}3}0">;
8927def note_omp_collapse_ordered_expr : Note<
8928  "as specified in %select{'collapse'|'ordered'|'collapse' and 'ordered'}0 clause%select{||s}0">;
8929def err_omp_negative_expression_in_clause : Error<
8930  "argument to '%0' clause must be a %select{non-negative|strictly positive}1 integer value">;
8931def err_omp_not_integral : Error<
8932  "expression must have integral or unscoped enumeration "
8933  "type, not %0">;
8934def err_omp_threadprivate_in_target : Error<
8935  "threadprivate variables cannot be used in target constructs">;
8936def err_omp_incomplete_type : Error<
8937  "expression has incomplete class type %0">;
8938def err_omp_explicit_conversion : Error<
8939  "expression requires explicit conversion from %0 to %1">;
8940def note_omp_conversion_here : Note<
8941  "conversion to %select{integral|enumeration}0 type %1 declared here">;
8942def err_omp_ambiguous_conversion : Error<
8943  "ambiguous conversion from type %0 to an integral or unscoped "
8944  "enumeration type">;
8945def err_omp_required_access : Error<
8946  "%0 variable must be %1">;
8947def err_omp_const_variable : Error<
8948  "const-qualified variable cannot be %0">;
8949def err_omp_const_not_mutable_variable : Error<
8950  "const-qualified variable without mutable fields cannot be %0">;
8951def err_omp_const_list_item : Error<
8952  "const-qualified list item cannot be %0">;
8953def err_omp_linear_incomplete_type : Error<
8954  "a linear variable with incomplete type %0">;
8955def err_omp_linear_expected_int_or_ptr : Error<
8956  "argument of a linear clause should be of integral or pointer "
8957  "type, not %0">;
8958def warn_omp_linear_step_zero : Warning<
8959  "zero linear step (%0 %select{|and other variables in clause }1should probably be const)">,
8960  InGroup<OpenMPClauses>;
8961def warn_omp_alignment_not_power_of_two : Warning<
8962  "aligned clause will be ignored because the requested alignment is not a power of 2">,
8963  InGroup<OpenMPClauses>;
8964def err_omp_invalid_target_decl : Error<
8965  "%0 used in declare target directive is not a variable or a function name">;
8966def err_omp_declare_target_multiple : Error<
8967  "%0 appears multiple times in clauses on the same declare target directive">;
8968def err_omp_declare_target_to_and_link : Error<
8969  "%0 must not appear in both clauses 'to' and 'link'">;
8970def warn_omp_not_in_target_context : Warning<
8971  "declaration is not declared in any declare target region">,
8972  InGroup<OpenMPTarget>;
8973def err_omp_function_in_link_clause : Error<
8974  "function name is not allowed in 'link' clause">;
8975def err_omp_aligned_expected_array_or_ptr : Error<
8976  "argument of aligned clause should be array"
8977  "%select{ or pointer|, pointer, reference to array or reference to pointer}1"
8978  ", not %0">;
8979def err_omp_aligned_twice : Error<
8980  "%select{a variable|a parameter|'this'}0 cannot appear in more than one aligned clause">;
8981def err_omp_local_var_in_threadprivate_init : Error<
8982  "variable with local storage in initial value of threadprivate variable">;
8983def err_omp_loop_not_canonical_init : Error<
8984  "initialization clause of OpenMP for loop is not in canonical form "
8985  "('var = init' or 'T var = init')">;
8986def ext_omp_loop_not_canonical_init : ExtWarn<
8987  "initialization clause of OpenMP for loop is not in canonical form "
8988  "('var = init' or 'T var = init')">, InGroup<OpenMPLoopForm>;
8989def err_omp_loop_not_canonical_cond : Error<
8990  "condition of OpenMP for loop must be a relational comparison "
8991  "('<', '<=', '>', or '>=') of loop variable %0">;
8992def err_omp_loop_not_canonical_incr : Error<
8993  "increment clause of OpenMP for loop must perform simple addition "
8994  "or subtraction on loop variable %0">;
8995def err_omp_loop_variable_type : Error<
8996  "variable must be of integer or %select{pointer|random access iterator}0 type">;
8997def err_omp_loop_incr_not_compatible : Error<
8998  "increment expression must cause %0 to %select{decrease|increase}1 "
8999  "on each iteration of OpenMP for loop">;
9000def note_omp_loop_cond_requres_compatible_incr : Note<
9001  "loop step is expected to be %select{negative|positive}0 due to this condition">;
9002def err_omp_loop_diff_cxx : Error<
9003  "could not calculate number of iterations calling 'operator-' with "
9004  "upper and lower loop bounds">;
9005def err_omp_loop_cannot_use_stmt : Error<
9006  "'%0' statement cannot be used in OpenMP for loop">;
9007def err_omp_simd_region_cannot_use_stmt : Error<
9008  "'%0' statement cannot be used in OpenMP simd region">;
9009def warn_omp_loop_64_bit_var : Warning<
9010  "OpenMP loop iteration variable cannot have more than 64 bits size and will be narrowed">,
9011  InGroup<OpenMPLoopForm>;
9012def err_omp_unknown_reduction_identifier : Error<
9013  "incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', "
9014  "'&&', '||', 'min' or 'max' or declare reduction for type %0">;
9015def err_omp_not_resolved_reduction_identifier : Error<
9016  "unable to resolve declare reduction construct for type %0">;
9017def err_omp_reduction_ref_type_arg : Error<
9018  "argument of OpenMP clause '%0' must reference the same object in all threads">;
9019def err_omp_clause_not_arithmetic_type_arg : Error<
9020  "arguments of OpenMP clause '%0' for 'min' or 'max' must be of %select{scalar|arithmetic}1 type">;
9021def err_omp_clause_floating_type_arg : Error<
9022  "arguments of OpenMP clause '%0' with bitwise operators cannot be of floating type">;
9023def err_omp_once_referenced : Error<
9024  "variable can appear only once in OpenMP '%0' clause">;
9025def err_omp_once_referenced_in_target_update : Error<
9026  "variable can appear only once in OpenMP 'target update' construct">;
9027def note_omp_referenced : Note<
9028  "previously referenced here">;
9029def err_omp_reduction_in_task : Error<
9030  "reduction variables may not be accessed in an explicit task">;
9031def err_omp_reduction_id_not_compatible : Error<
9032  "list item of type %0 is not valid for specified reduction operation: unable to provide default initialization value">;
9033def err_omp_in_reduction_not_task_reduction : Error<
9034  "in_reduction variable must appear in a task_reduction clause">;
9035def err_omp_reduction_identifier_mismatch : Error<
9036  "in_reduction variable must have the same reduction operation as in a task_reduction clause">;
9037def note_omp_previous_reduction_identifier : Note<
9038  "previously marked as task_reduction with different reduction operation">;
9039def err_omp_prohibited_region : Error<
9040  "region cannot be%select{| closely}0 nested inside '%1' region"
9041  "%select{|; perhaps you forget to enclose 'omp %3' directive into a parallel region?|"
9042  "; perhaps you forget to enclose 'omp %3' directive into a for or a parallel for region with 'ordered' clause?|"
9043  "; perhaps you forget to enclose 'omp %3' directive into a target region?|"
9044  "; perhaps you forget to enclose 'omp %3' directive into a teams region?}2">;
9045def err_omp_prohibited_region_simd : Error<
9046  "OpenMP constructs may not be nested inside a simd region">;
9047def err_omp_prohibited_region_atomic : Error<
9048  "OpenMP constructs may not be nested inside an atomic region">;
9049def err_omp_prohibited_region_critical_same_name : Error<
9050  "cannot nest 'critical' regions having the same name %0">;
9051def note_omp_previous_critical_region : Note<
9052  "previous 'critical' region starts here">;
9053def err_omp_sections_not_compound_stmt : Error<
9054  "the statement for '#pragma omp sections' must be a compound statement">;
9055def err_omp_parallel_sections_not_compound_stmt : Error<
9056  "the statement for '#pragma omp parallel sections' must be a compound statement">;
9057def err_omp_orphaned_section_directive : Error<
9058  "%select{orphaned 'omp section' directives are prohibited, it|'omp section' directive}0"
9059  " must be closely nested to a sections region%select{|, not a %1 region}0">;
9060def err_omp_sections_substmt_not_section : Error<
9061  "statement in 'omp sections' directive must be enclosed into a section region">;
9062def err_omp_parallel_sections_substmt_not_section : Error<
9063  "statement in 'omp parallel sections' directive must be enclosed into a section region">;
9064def err_omp_parallel_reduction_in_task_firstprivate : Error<
9065  "argument of a reduction clause of a %0 construct must not appear in a firstprivate clause on a task construct">;
9066def err_omp_atomic_read_not_expression_statement : Error<
9067  "the statement for 'atomic read' must be an expression statement of form 'v = x;',"
9068  " where v and x are both lvalue expressions with scalar type">;
9069def note_omp_atomic_read_write: Note<
9070  "%select{expected an expression statement|expected built-in assignment operator|expected expression of scalar type|expected lvalue expression}0">;
9071def err_omp_atomic_write_not_expression_statement : Error<
9072  "the statement for 'atomic write' must be an expression statement of form 'x = expr;',"
9073  " where x is a lvalue expression with scalar type">;
9074def err_omp_atomic_update_not_expression_statement : Error<
9075  "the statement for 'atomic update' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x',"
9076  " where x is an l-value expression with scalar type">;
9077def err_omp_atomic_not_expression_statement : Error<
9078  "the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x',"
9079  " where x is an l-value expression with scalar type">;
9080def note_omp_atomic_update: Note<
9081  "%select{expected an expression statement|expected built-in binary or unary operator|expected unary decrement/increment operation|"
9082  "expected expression of scalar type|expected assignment expression|expected built-in binary operator|"
9083  "expected one of '+', '*', '-', '/', '&', '^', '%|', '<<', or '>>' built-in operations|expected in right hand side of expression}0">;
9084def err_omp_atomic_capture_not_expression_statement : Error<
9085  "the statement for 'atomic capture' must be an expression statement of form 'v = ++x;', 'v = --x;', 'v = x++;', 'v = x--;', 'v = x binop= expr;', 'v = x = x binop expr' or 'v = x = expr binop x',"
9086  " where x and v are both l-value expressions with scalar type">;
9087def err_omp_atomic_capture_not_compound_statement : Error<
9088  "the statement for 'atomic capture' must be a compound statement of form '{v = x; x binop= expr;}', '{x binop= expr; v = x;}',"
9089  " '{v = x; x = x binop expr;}', '{v = x; x = expr binop x;}', '{x = x binop expr; v = x;}', '{x = expr binop x; v = x;}' or '{v = x; x = expr;}',"
9090  " '{v = x; x++;}', '{v = x; ++x;}', '{++x; v = x;}', '{x++; v = x;}', '{v = x; x--;}', '{v = x; --x;}', '{--x; v = x;}', '{x--; v = x;}'"
9091  " where x is an l-value expression with scalar type">;
9092def note_omp_atomic_capture: Note<
9093  "%select{expected assignment expression|expected compound statement|expected exactly two expression statements|expected in right hand side of the first expression}0">;
9094def err_omp_atomic_several_clauses : Error<
9095  "directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause">;
9096def note_omp_atomic_previous_clause : Note<
9097  "'%0' clause used here">;
9098def err_omp_target_contains_not_only_teams : Error<
9099  "target construct with nested teams region contains statements outside of the teams construct">;
9100def note_omp_nested_teams_construct_here : Note<
9101  "nested teams construct here">;
9102def note_omp_nested_statement_here : Note<
9103  "%select{statement|directive}0 outside teams construct here">;
9104def err_omp_single_copyprivate_with_nowait : Error<
9105  "the 'copyprivate' clause must not be used with the 'nowait' clause">;
9106def note_omp_nowait_clause_here : Note<
9107  "'nowait' clause is here">;
9108def err_omp_single_decl_in_declare_simd : Error<
9109  "single declaration is expected after 'declare simd' directive">;
9110def err_omp_function_expected : Error<
9111  "'#pragma omp declare simd' can only be applied to functions">;
9112def err_omp_wrong_cancel_region : Error<
9113  "one of 'for', 'parallel', 'sections' or 'taskgroup' is expected">;
9114def err_omp_parent_cancel_region_nowait : Error<
9115  "parent region for 'omp %select{cancellation point|cancel}0' construct cannot be nowait">;
9116def err_omp_parent_cancel_region_ordered : Error<
9117  "parent region for 'omp %select{cancellation point|cancel}0' construct cannot be ordered">;
9118def err_omp_reduction_wrong_type : Error<"reduction type cannot be %select{qualified with 'const', 'volatile' or 'restrict'|a function|a reference|an array}0 type">;
9119def err_omp_wrong_var_in_declare_reduction : Error<"only %select{'omp_priv' or 'omp_orig'|'omp_in' or 'omp_out'}0 variables are allowed in %select{initializer|combiner}0 expression">;
9120def err_omp_declare_reduction_redefinition : Error<"redefinition of user-defined reduction for type %0">;
9121def err_omp_mapper_wrong_type : Error<
9122  "mapper type must be of struct, union or class type">;
9123def err_omp_declare_mapper_wrong_var : Error<
9124  "only variable %0 is allowed in map clauses of this 'omp declare mapper' directive">;
9125def err_omp_declare_mapper_redefinition : Error<
9126  "redefinition of user-defined mapper for type %0 with name %1">;
9127def err_omp_invalid_mapper: Error<
9128  "cannot find a valid user-defined mapper for type %0 with name %1">;
9129def err_omp_array_section_use : Error<"OpenMP array section is not allowed here">;
9130def err_omp_typecheck_section_value : Error<
9131  "subscripted value is not an array or pointer">;
9132def err_omp_typecheck_section_not_integer : Error<
9133  "array section %select{lower bound|length}0 is not an integer">;
9134def err_omp_section_function_type : Error<
9135  "section of pointer to function type %0">;
9136def warn_omp_section_is_char : Warning<"array section %select{lower bound|length}0 is of type 'char'">,
9137  InGroup<CharSubscript>, DefaultIgnore;
9138def err_omp_section_incomplete_type : Error<
9139  "section of pointer to incomplete type %0">;
9140def err_omp_section_not_subset_of_array : Error<
9141  "array section must be a subset of the original array">;
9142def err_omp_section_length_negative : Error<
9143  "section length is evaluated to a negative value %0">;
9144def err_omp_section_length_undefined : Error<
9145  "section length is unspecified and cannot be inferred because subscripted value is %select{not an array|an array of unknown bound}0">;
9146def err_omp_wrong_linear_modifier : Error<
9147  "expected %select{'val' modifier|one of 'ref', val' or 'uval' modifiers}0">;
9148def err_omp_wrong_linear_modifier_non_reference : Error<
9149  "variable of non-reference type %0 can be used only with 'val' modifier, but used with '%1'">;
9150def err_omp_wrong_simdlen_safelen_values : Error<
9151  "the value of 'simdlen' parameter must be less than or equal to the value of the 'safelen' parameter">;
9152def err_omp_wrong_if_directive_name_modifier : Error<
9153  "directive name modifier '%0' is not allowed for '#pragma omp %1'">;
9154def err_omp_no_more_if_clause : Error<
9155  "no more 'if' clause is allowed">;
9156def err_omp_unnamed_if_clause : Error<
9157  "expected %select{|one of}0 %1 directive name modifier%select{|s}0">;
9158def note_omp_previous_named_if_clause : Note<
9159  "previous clause with directive name modifier specified here">;
9160def err_omp_ordered_directive_with_param : Error<
9161  "'ordered' directive %select{without any clauses|with 'threads' clause}0 cannot be closely nested inside ordered region with specified parameter">;
9162def err_omp_ordered_directive_without_param : Error<
9163  "'ordered' directive with 'depend' clause cannot be closely nested inside ordered region without specified parameter">;
9164def note_omp_ordered_param : Note<
9165  "'ordered' clause with specified parameter">;
9166def err_omp_expected_base_var_name : Error<
9167  "expected variable name as a base of the array %select{subscript|section}0">;
9168def err_omp_map_shared_storage : Error<
9169  "variable already marked as mapped in current construct">;
9170def err_omp_invalid_map_type_for_directive : Error<
9171  "%select{map type '%1' is not allowed|map type must be specified}0 for '#pragma omp %2'">;
9172def err_omp_no_clause_for_directive : Error<
9173  "expected at least one %0 clause for '#pragma omp %1'">;
9174def err_omp_threadprivate_in_clause : Error<
9175  "threadprivate variables are not allowed in '%0' clause">;
9176def err_omp_wrong_ordered_loop_count : Error<
9177  "the parameter of the 'ordered' clause must be greater than or equal to the parameter of the 'collapse' clause">;
9178def note_collapse_loop_count : Note<
9179  "parameter of the 'collapse' clause">;
9180def err_omp_grainsize_num_tasks_mutually_exclusive : Error<
9181  "'%0' and '%1' clause are mutually exclusive and may not appear on the same directive">;
9182def note_omp_previous_grainsize_num_tasks : Note<
9183  "'%0' clause is specified here">;
9184def err_omp_hint_clause_no_name : Error<
9185  "the name of the construct must be specified in presence of 'hint' clause">;
9186def err_omp_critical_with_hint : Error<
9187  "constructs with the same name must have a 'hint' clause with the same value">;
9188def note_omp_critical_hint_here : Note<
9189  "%select{|previous }0'hint' clause with value '%1'">;
9190def note_omp_critical_no_hint : Note<
9191  "%select{|previous }0directive with no 'hint' clause specified">;
9192def err_omp_depend_clause_thread_simd : Error<
9193  "'depend' clauses cannot be mixed with '%0' clause">;
9194def err_omp_depend_sink_expected_loop_iteration : Error<
9195  "expected%select{| %1}0 loop iteration variable">;
9196def err_omp_depend_sink_unexpected_expr : Error<
9197  "unexpected expression: number of expressions is larger than the number of associated loops">;
9198def err_omp_depend_sink_expected_plus_minus : Error<
9199  "expected '+' or '-' operation">;
9200def err_omp_depend_sink_source_not_allowed : Error<
9201  "'depend(%select{source|sink:vec}0)' clause%select{|s}0 cannot be mixed with 'depend(%select{sink:vec|source}0)' clause%select{s|}0">;
9202def err_omp_linear_ordered : Error<
9203  "'linear' clause cannot be specified along with 'ordered' clause with a parameter">;
9204def err_omp_unexpected_schedule_modifier : Error<
9205  "modifier '%0' cannot be used along with modifier '%1'">;
9206def err_omp_schedule_nonmonotonic_static : Error<
9207  "'nonmonotonic' modifier can only be specified with 'dynamic' or 'guided' schedule kind">;
9208def err_omp_schedule_nonmonotonic_ordered : Error<
9209  "'schedule' clause with 'nonmonotonic' modifier cannot be specified if an 'ordered' clause is specified">;
9210def err_omp_ordered_simd : Error<
9211  "'ordered' clause with a parameter can not be specified in '#pragma omp %0' directive">;
9212def err_omp_variable_in_given_clause_and_dsa : Error<
9213  "%0 variable cannot be in a %1 clause in '#pragma omp %2' directive">;
9214def err_omp_param_or_this_in_clause : Error<
9215  "expected reference to one of the parameters of function %0%select{| or 'this'}1">;
9216def err_omp_expected_uniform_param : Error<
9217  "expected a reference to a parameter specified in a 'uniform' clause">;
9218def err_omp_expected_int_param : Error<
9219  "expected a reference to an integer-typed parameter">;
9220def err_omp_at_least_one_motion_clause_required : Error<
9221  "expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'">;
9222def err_omp_usedeviceptr_not_a_pointer : Error<
9223  "expected pointer or reference to pointer in 'use_device_ptr' clause">;
9224def err_omp_argument_type_isdeviceptr : Error <
9225  "expected pointer, array, reference to pointer, or reference to array in 'is_device_ptr clause'">;
9226def warn_omp_nesting_simd : Warning<
9227  "OpenMP only allows an ordered construct with the simd clause nested in a simd construct">,
9228  InGroup<SourceUsesOpenMP>;
9229def err_omp_orphaned_device_directive : Error<
9230  "orphaned 'omp %0' directives are prohibited"
9231  "; perhaps you forget to enclose the directive into a %select{|||target |teams }1region?">;
9232def err_omp_reduction_non_addressable_expression : Error<
9233  "expected addressable reduction item for the task-based directives">;
9234def err_omp_reduction_with_nogroup : Error<
9235  "'reduction' clause cannot be used with 'nogroup' clause">;
9236def err_omp_reduction_vla_unsupported : Error<
9237  "cannot generate code for reduction on %select{|array section, which requires a }0variable length array">;
9238def err_omp_linear_distribute_var_non_loop_iteration : Error<
9239  "only loop iteration variables are allowed in 'linear' clause in distribute directives">;
9240def warn_omp_non_trivial_type_mapped : Warning<
9241  "Non-trivial type %0 is mapped, only trivial types are guaranteed to be mapped correctly">,
9242  InGroup<OpenMPTarget>;
9243def err_omp_requires_clause_redeclaration : Error <
9244  "Only one %0 clause can appear on a requires directive in a single translation unit">;
9245def note_omp_requires_previous_clause : Note <
9246  "%0 clause previously used here">;
9247def err_omp_target_before_requires : Error <
9248  "target region encountered before requires directive with '%0' clause">;
9249def note_omp_requires_encountered_target : Note <
9250  "target previously encountered here">;
9251def err_omp_invalid_scope : Error <
9252  "'#pragma omp %0' directive must appear only in file scope">;
9253def note_omp_invalid_length_on_this_ptr_mapping : Note <
9254  "expected length on mapping of 'this' array section expression to be '1'">;
9255def note_omp_invalid_lower_bound_on_this_ptr_mapping : Note <
9256  "expected lower bound on mapping of 'this' array section expression to be '0' or not specified">;
9257def note_omp_invalid_subscript_on_this_ptr_map : Note <
9258  "expected 'this' subscript expression on map clause to be 'this[0]'">;
9259def err_omp_invalid_map_this_expr : Error <
9260  "invalid 'this' expression on 'map' clause">;
9261def err_implied_omp_allocator_handle_t_not_found : Error<
9262  "omp_allocator_handle_t type not found; include <omp.h>">;
9263def err_omp_expected_predefined_allocator : Error<
9264  "expected one of the predefined allocators for the variables with the static "
9265  "storage: 'omp_default_mem_alloc', 'omp_large_cap_mem_alloc', "
9266  "'omp_const_mem_alloc', 'omp_high_bw_mem_alloc', 'omp_low_lat_mem_alloc', "
9267  "'omp_cgroup_mem_alloc', 'omp_pteam_mem_alloc' or 'omp_thread_mem_alloc'">;
9268def warn_omp_used_different_allocator : Warning<
9269  "allocate directive specifies %select{default|'%1'}0 allocator while "
9270  "previously used %select{default|'%3'}2">,
9271  InGroup<OpenMPClauses>;
9272def note_omp_previous_allocator : Note<
9273  "previous allocator is specified here">;
9274def err_expected_allocator_clause : Error<"expected an 'allocator' clause "
9275  "inside of the target region; provide an 'allocator' clause or use 'requires'"
9276  " directive with the 'dynamic_allocators' clause">;
9277def err_expected_allocator_expression : Error<"expected an allocator expression "
9278  "inside of the target region; provide an allocator expression or use 'requires'"
9279  " directive with the 'dynamic_allocators' clause">;
9280def warn_omp_allocate_thread_on_task_target_directive : Warning<
9281  "allocator with the 'thread' trait access has unspecified behavior on '%0' directive">,
9282  InGroup<OpenMPClauses>;
9283def err_omp_expected_private_copy_for_allocate : Error<
9284  "the referenced item is not found in any private clause on the same directive">;
9285def err_omp_stmt_depends_on_loop_counter : Error<
9286  "the loop %select{initializer|condition}0 expression depends on the current loop control variable">;
9287def err_omp_invariant_or_linear_dependency : Error<
9288  "expected loop invariant expression or '<invariant1> * %0 + <invariant2>' kind of expression">;
9289def err_omp_wrong_dependency_iterator_type : Error<
9290  "expected an integer or a pointer type of the outer loop counter '%0' for non-rectangular nests">;
9291def err_omp_unsupported_type : Error <
9292  "host requires %0 bit size %1 type support, but device '%2' does not support it">;
9293} // end of OpenMP category
9294
9295let CategoryName = "Related Result Type Issue" in {
9296// Objective-C related result type compatibility
9297def warn_related_result_type_compatibility_class : Warning<
9298  "method is expected to return an instance of its class type "
9299  "%diff{$, but is declared to return $|"
9300  ", but is declared to return different type}0,1">;
9301def warn_related_result_type_compatibility_protocol : Warning<
9302  "protocol method is expected to return an instance of the implementing "
9303  "class, but is declared to return %0">;
9304def note_related_result_type_family : Note<
9305  "%select{overridden|current}0 method is part of the '%select{|alloc|copy|init|"
9306  "mutableCopy|new|autorelease|dealloc|finalize|release|retain|retainCount|"
9307  "self}1' method family%select{| and is expected to return an instance of its "
9308  "class type}0">;
9309def note_related_result_type_overridden : Note<
9310  "overridden method returns an instance of its class type">;
9311def note_related_result_type_inferred : Note<
9312  "%select{class|instance}0 method %1 is assumed to return an instance of "
9313  "its receiver type (%2)">;
9314def note_related_result_type_explicit : Note<
9315  "%select{overridden|current}0 method is explicitly declared 'instancetype'"
9316  "%select{| and is expected to return an instance of its class type}0">;
9317def err_invalid_type_for_program_scope_var : Error<
9318  "the %0 type cannot be used to declare a program scope variable">;
9319
9320}
9321
9322let CategoryName = "Modules Issue" in {
9323def err_module_decl_in_module_map_module : Error<
9324  "'module' declaration found while building module from module map">;
9325def err_module_decl_in_header_module : Error<
9326  "'module' declaration found while building header unit">;
9327def err_module_interface_implementation_mismatch : Error<
9328  "missing 'export' specifier in module declaration while "
9329  "building module interface">;
9330def err_current_module_name_mismatch : Error<
9331  "module name '%0' specified on command line does not match name of module">;
9332def err_module_redefinition : Error<
9333  "redefinition of module '%0'">;
9334def note_prev_module_definition : Note<"previously defined here">;
9335def note_prev_module_definition_from_ast_file : Note<"module loaded from '%0'">;
9336def err_module_not_defined : Error<
9337  "definition of module '%0' is not available; use -fmodule-file= to specify "
9338  "path to precompiled module interface">;
9339def err_module_redeclaration : Error<
9340  "translation unit contains multiple module declarations">;
9341def note_prev_module_declaration : Note<"previous module declaration is here">;
9342def err_module_declaration_missing : Error<
9343  "missing 'export module' declaration in module interface unit">;
9344def err_module_declaration_missing_after_global_module_introducer : Error<
9345  "missing 'module' declaration at end of global module fragment "
9346  "introduced here">;
9347def err_module_private_specialization : Error<
9348  "%select{template|partial|member}0 specialization cannot be "
9349  "declared __module_private__">;
9350def err_module_private_local : Error<
9351  "%select{local variable|parameter|typedef}0 %1 cannot be declared "
9352  "__module_private__">;
9353def err_module_private_local_class : Error<
9354  "local %select{struct|interface|union|class|enum}0 cannot be declared "
9355  "__module_private__">;
9356def err_module_unimported_use : Error<
9357  "%select{declaration|definition|default argument|"
9358  "explicit specialization|partial specialization}0 of %1 must be imported "
9359  "from module '%2' before it is required">;
9360def err_module_unimported_use_header : Error<
9361  "missing '#include %3'; "
9362  "%select{declaration|definition|default argument|"
9363  "explicit specialization|partial specialization}0 of %1 must be imported "
9364  "from module '%2' before it is required">;
9365def err_module_unimported_use_global_module_fragment : Error<
9366  "%select{missing '#include'|missing '#include %3'}2; "
9367  "%select{||default argument of |explicit specialization of |"
9368  "partial specialization of }0%1 must be "
9369  "%select{declared|defined|defined|declared|declared}0 "
9370  "before it is used">;
9371def err_module_unimported_use_multiple : Error<
9372  "%select{declaration|definition|default argument|"
9373  "explicit specialization|partial specialization}0 of %1 must be imported "
9374  "from one of the following modules before it is required:%2">;
9375def ext_module_import_in_extern_c : ExtWarn<
9376  "import of C++ module '%0' appears within extern \"C\" language linkage "
9377  "specification">, DefaultError,
9378  InGroup<DiagGroup<"module-import-in-extern-c">>;
9379def err_module_import_not_at_top_level_fatal : Error<
9380  "import of module '%0' appears within %1">, DefaultFatal;
9381def ext_module_import_not_at_top_level_noop : ExtWarn<
9382  "redundant #include of module '%0' appears within %1">, DefaultError,
9383  InGroup<DiagGroup<"modules-import-nested-redundant">>;
9384def note_module_import_not_at_top_level : Note<"%0 begins here">;
9385def err_module_self_import : Error<
9386  "import of module '%0' appears within same top-level module '%1'">;
9387def err_module_import_in_implementation : Error<
9388  "@import of module '%0' in implementation of '%1'; use #import">;
9389
9390// C++ Modules
9391def err_module_decl_not_at_start : Error<
9392  "module declaration must occur at the start of the translation unit">;
9393def note_global_module_introducer_missing : Note<
9394  "add 'module;' to the start of the file to introduce a "
9395  "global module fragment">;
9396def err_export_within_anonymous_namespace : Error<
9397  "export declaration appears within anonymous namespace">;
9398def note_anonymous_namespace : Note<"anonymous namespace begins here">;
9399def ext_export_no_name_block : ExtWarn<
9400  "ISO C++20 does not permit %select{an empty|a static_assert}0 declaration "
9401  "to appear in an export block">, InGroup<ExportUnnamed>;
9402def ext_export_no_names : ExtWarn<
9403  "ISO C++20 does not permit a declaration that does not introduce any names "
9404  "to be exported">, InGroup<ExportUnnamed>;
9405def note_export : Note<"export block begins here">;
9406def err_export_no_name : Error<
9407  "%select{empty|static_assert|asm}0 declaration cannot be exported">;
9408def ext_export_using_directive : ExtWarn<
9409  "ISO C++20 does not permit using directive to be exported">,
9410  InGroup<DiagGroup<"export-using-directive">>;
9411def err_export_within_export : Error<
9412  "export declaration appears within another export declaration">;
9413def err_export_internal : Error<
9414  "declaration of %0 with internal linkage cannot be exported">;
9415def err_export_using_internal : Error<
9416  "using declaration referring to %0 with internal linkage cannot be exported">;
9417def err_export_not_in_module_interface : Error<
9418  "export declaration can only be used within a module interface unit"
9419  "%select{ after the module declaration|}0">;
9420def err_export_in_private_module_fragment : Error<
9421  "export declaration cannot be used in a private module fragment">;
9422def note_private_module_fragment : Note<
9423  "private module fragment begins here">;
9424def err_private_module_fragment_not_module : Error<
9425  "private module fragment declaration with no preceding module declaration">;
9426def err_private_module_fragment_redefined : Error<
9427  "private module fragment redefined">;
9428def err_private_module_fragment_not_module_interface : Error<
9429  "private module fragment in module implementation unit">;
9430def note_not_module_interface_add_export : Note<
9431  "add 'export' here if this is intended to be a module interface unit">;
9432
9433def ext_equivalent_internal_linkage_decl_in_modules : ExtWarn<
9434  "ambiguous use of internal linkage declaration %0 defined in multiple modules">,
9435  InGroup<DiagGroup<"modules-ambiguous-internal-linkage">>;
9436def note_equivalent_internal_linkage_decl : Note<
9437  "declared here%select{ in module '%1'|}0">;
9438
9439def note_redefinition_modules_same_file : Note<
9440  "'%0' included multiple times, additional include site in header from module '%1'">;
9441def note_redefinition_include_same_file : Note<
9442  "'%0' included multiple times, additional include site here">;
9443}
9444
9445let CategoryName = "Coroutines Issue" in {
9446def err_return_in_coroutine : Error<
9447  "return statement not allowed in coroutine; did you mean 'co_return'?">;
9448def note_declared_coroutine_here : Note<
9449  "function is a coroutine due to use of '%0' here">;
9450def err_coroutine_objc_method : Error<
9451  "Objective-C methods as coroutines are not yet supported">;
9452def err_coroutine_unevaluated_context : Error<
9453  "'%0' cannot be used in an unevaluated context">;
9454def err_coroutine_within_handler : Error<
9455  "'%0' cannot be used in the handler of a try block">;
9456def err_coroutine_outside_function : Error<
9457  "'%0' cannot be used outside a function">;
9458def err_coroutine_invalid_func_context : Error<
9459  "'%1' cannot be used in %select{a constructor|a destructor"
9460  "|the 'main' function|a constexpr function"
9461  "|a function with a deduced return type|a varargs function"
9462  "|a consteval function}0">;
9463def err_implied_coroutine_type_not_found : Error<
9464  "%0 type was not found; include <experimental/coroutine> before defining "
9465  "a coroutine">;
9466def err_implicit_coroutine_std_nothrow_type_not_found : Error<
9467  "std::nothrow was not found; include <new> before defining a coroutine which "
9468  "uses get_return_object_on_allocation_failure()">;
9469def err_malformed_std_nothrow : Error<
9470  "std::nothrow must be a valid variable declaration">;
9471def err_malformed_std_coroutine_handle : Error<
9472  "std::experimental::coroutine_handle must be a class template">;
9473def err_coroutine_handle_missing_member : Error<
9474  "std::experimental::coroutine_handle missing a member named '%0'">;
9475def err_malformed_std_coroutine_traits : Error<
9476  "'std::experimental::coroutine_traits' must be a class template">;
9477def err_implied_std_coroutine_traits_promise_type_not_found : Error<
9478  "this function cannot be a coroutine: %q0 has no member named 'promise_type'">;
9479def err_implied_std_coroutine_traits_promise_type_not_class : Error<
9480  "this function cannot be a coroutine: %0 is not a class">;
9481def err_coroutine_promise_type_incomplete : Error<
9482  "this function cannot be a coroutine: %0 is an incomplete type">;
9483def err_coroutine_type_missing_specialization : Error<
9484  "this function cannot be a coroutine: missing definition of "
9485  "specialization %0">;
9486def err_coroutine_promise_incompatible_return_functions : Error<
9487  "the coroutine promise type %0 declares both 'return_value' and 'return_void'">;
9488def err_coroutine_promise_requires_return_function : Error<
9489  "the coroutine promise type %0 must declare either 'return_value' or 'return_void'">;
9490def note_coroutine_promise_implicit_await_transform_required_here : Note<
9491  "call to 'await_transform' implicitly required by 'co_await' here">;
9492def note_coroutine_promise_suspend_implicitly_required : Note<
9493  "call to '%select{initial_suspend|final_suspend}0' implicitly "
9494  "required by the %select{initial suspend point|final suspend point}0">;
9495def err_coroutine_promise_unhandled_exception_required : Error<
9496  "%0 is required to declare the member 'unhandled_exception()'">;
9497def warn_coroutine_promise_unhandled_exception_required_with_exceptions : Warning<
9498  "%0 is required to declare the member 'unhandled_exception()' when exceptions are enabled">,
9499  InGroup<CoroutineMissingUnhandledException>;
9500def err_coroutine_promise_get_return_object_on_allocation_failure : Error<
9501  "%0: 'get_return_object_on_allocation_failure()' must be a static member function">;
9502def err_seh_in_a_coroutine_with_cxx_exceptions : Error<
9503  "cannot use SEH '__try' in a coroutine when C++ exceptions are enabled">;
9504def err_coroutine_promise_new_requires_nothrow : Error<
9505  "%0 is required to have a non-throwing noexcept specification when the promise "
9506   "type declares 'get_return_object_on_allocation_failure()'">;
9507def note_coroutine_promise_call_implicitly_required : Note<
9508  "call to %0 implicitly required by coroutine function here">;
9509def err_await_suspend_invalid_return_type : Error<
9510  "return type of 'await_suspend' is required to be 'void' or 'bool' (have %0)"
9511>;
9512def note_await_ready_no_bool_conversion : Note<
9513  "return type of 'await_ready' is required to be contextually convertible to 'bool'"
9514>;
9515}
9516
9517let CategoryName = "Documentation Issue" in {
9518def warn_not_a_doxygen_trailing_member_comment : Warning<
9519  "not a Doxygen trailing comment">, InGroup<Documentation>, DefaultIgnore;
9520} // end of documentation issue category
9521
9522let CategoryName = "Nullability Issue" in {
9523
9524def warn_mismatched_nullability_attr : Warning<
9525  "nullability specifier %0 conflicts with existing specifier %1">,
9526  InGroup<Nullability>;
9527
9528def warn_nullability_declspec : Warning<
9529  "nullability specifier %0 cannot be applied "
9530  "to non-pointer type %1; did you mean to apply the specifier to the "
9531  "%select{pointer|block pointer|member pointer|function pointer|"
9532  "member function pointer}2?">,
9533  InGroup<NullabilityDeclSpec>,
9534  DefaultError;
9535
9536def note_nullability_here : Note<"%0 specified here">;
9537
9538def err_nullability_nonpointer : Error<
9539  "nullability specifier %0 cannot be applied to non-pointer type %1">;
9540
9541def warn_nullability_lost : Warning<
9542  "implicit conversion from nullable pointer %0 to non-nullable pointer "
9543  "type %1">,
9544  InGroup<NullableToNonNullConversion>, DefaultIgnore;
9545def warn_zero_as_null_pointer_constant : Warning<
9546  "zero as null pointer constant">,
9547  InGroup<DiagGroup<"zero-as-null-pointer-constant">>, DefaultIgnore;
9548
9549def err_nullability_cs_multilevel : Error<
9550  "nullability keyword %0 cannot be applied to multi-level pointer type %1">;
9551def note_nullability_type_specifier : Note<
9552  "use nullability type specifier %0 to affect the innermost "
9553  "pointer type of %1">;
9554
9555def warn_null_resettable_setter : Warning<
9556  "synthesized setter %0 for null_resettable property %1 does not handle nil">,
9557  InGroup<Nullability>;
9558
9559def warn_nullability_missing : Warning<
9560  "%select{pointer|block pointer|member pointer}0 is missing a nullability "
9561  "type specifier (_Nonnull, _Nullable, or _Null_unspecified)">,
9562  InGroup<NullabilityCompleteness>;
9563def warn_nullability_missing_array : Warning<
9564  "array parameter is missing a nullability type specifier (_Nonnull, "
9565  "_Nullable, or _Null_unspecified)">,
9566  InGroup<NullabilityCompletenessOnArrays>;
9567def note_nullability_fix_it : Note<
9568  "insert '%select{_Nonnull|_Nullable|_Null_unspecified}0' if the "
9569  "%select{pointer|block pointer|member pointer|array parameter}1 "
9570  "%select{should never be null|may be null|should not declare nullability}0">;
9571
9572def warn_nullability_inferred_on_nested_type : Warning<
9573  "inferring '_Nonnull' for pointer type within %select{array|reference}0 is "
9574  "deprecated">,
9575  InGroup<NullabilityInferredOnNestedType>;
9576
9577def err_objc_type_arg_explicit_nullability : Error<
9578  "type argument %0 cannot explicitly specify nullability">;
9579
9580def err_objc_type_param_bound_explicit_nullability : Error<
9581  "type parameter %0 bound %1 cannot explicitly specify nullability">;
9582
9583}
9584
9585let CategoryName = "Generics Issue" in {
9586
9587def err_objc_type_param_bound_nonobject : Error<
9588  "type bound %0 for type parameter %1 is not an Objective-C pointer type">;
9589
9590def err_objc_type_param_bound_missing_pointer : Error<
9591  "missing '*' in type bound %0 for type parameter %1">;
9592def err_objc_type_param_bound_qualified : Error<
9593  "type bound %1 for type parameter %0 cannot be qualified with '%2'">;
9594
9595def err_objc_type_param_redecl : Error<
9596  "redeclaration of type parameter %0">;
9597
9598def err_objc_type_param_arity_mismatch : Error<
9599  "%select{forward class declaration|class definition|category|extension}0 has "
9600  "too %select{few|many}1 type parameters (expected %2, have %3)">;
9601
9602def err_objc_type_param_bound_conflict : Error<
9603  "type bound %0 for type parameter %1 conflicts with "
9604  "%select{implicit|previous}2 bound %3%select{for type parameter %5|}4">;
9605
9606def err_objc_type_param_variance_conflict : Error<
9607  "%select{in|co|contra}0variant type parameter %1 conflicts with previous "
9608  "%select{in|co|contra}2variant type parameter %3">;
9609
9610def note_objc_type_param_here : Note<"type parameter %0 declared here">;
9611
9612def err_objc_type_param_bound_missing : Error<
9613  "missing type bound %0 for type parameter %1 in %select{@interface|@class}2">;
9614
9615def err_objc_parameterized_category_nonclass : Error<
9616  "%select{extension|category}0 of non-parameterized class %1 cannot have type "
9617  "parameters">;
9618
9619def err_objc_parameterized_forward_class : Error<
9620  "forward declaration of non-parameterized class %0 cannot have type "
9621  "parameters">;
9622
9623def err_objc_parameterized_forward_class_first : Error<
9624  "class %0 previously declared with type parameters">;
9625
9626def err_objc_type_arg_missing_star : Error<
9627  "type argument %0 must be a pointer (requires a '*')">;
9628def err_objc_type_arg_qualified : Error<
9629  "type argument %0 cannot be qualified with '%1'">;
9630
9631def err_objc_type_arg_missing : Error<
9632  "no type or protocol named %0">;
9633
9634def err_objc_type_args_and_protocols : Error<
9635  "angle brackets contain both a %select{type|protocol}0 (%1) and a "
9636  "%select{protocol|type}0 (%2)">;
9637
9638def err_objc_type_args_non_class : Error<
9639  "type arguments cannot be applied to non-class type %0">;
9640
9641def err_objc_type_args_non_parameterized_class : Error<
9642  "type arguments cannot be applied to non-parameterized class %0">;
9643
9644def err_objc_type_args_specialized_class : Error<
9645  "type arguments cannot be applied to already-specialized class type %0">;
9646
9647def err_objc_type_args_wrong_arity : Error<
9648  "too %select{many|few}0 type arguments for class %1 (have %2, expected %3)">;
9649}
9650
9651def err_objc_type_arg_not_id_compatible : Error<
9652  "type argument %0 is neither an Objective-C object nor a block type">;
9653
9654def err_objc_type_arg_does_not_match_bound : Error<
9655  "type argument %0 does not satisfy the bound (%1) of type parameter %2">;
9656
9657def warn_objc_redundant_qualified_class_type : Warning<
9658  "parameterized class %0 already conforms to the protocols listed; did you "
9659  "forget a '*'?">, InGroup<ObjCProtocolQualifiers>;
9660
9661def warn_block_literal_attributes_on_omitted_return_type : Warning<
9662  "attribute %0 ignored, because it cannot be applied to omitted return type">,
9663  InGroup<IgnoredAttributes>;
9664
9665def warn_block_literal_qualifiers_on_omitted_return_type : Warning<
9666  "'%0' qualifier on omitted return type %1 has no effect">,
9667  InGroup<IgnoredQualifiers>;
9668
9669def warn_shadow_field : Warning<
9670  "%select{parameter|non-static data member}3 %0 %select{|of %1 }3shadows "
9671  "member inherited from type %2">, InGroup<ShadowField>, DefaultIgnore;
9672def note_shadow_field : Note<"declared here">;
9673
9674def err_multiversion_required_in_redecl : Error<
9675  "function declaration is missing %select{'target'|'cpu_specific' or "
9676  "'cpu_dispatch'}0 attribute in a multiversioned function">;
9677def note_multiversioning_caused_here : Note<
9678  "function multiversioning caused by this declaration">;
9679def err_multiversion_after_used : Error<
9680  "function declaration cannot become a multiversioned function after first "
9681  "usage">;
9682def err_bad_multiversion_option : Error<
9683  "function multiversioning doesn't support %select{feature|architecture}0 "
9684  "'%1'">;
9685def err_multiversion_duplicate : Error<
9686  "multiversioned function redeclarations require identical target attributes">;
9687def err_multiversion_noproto : Error<
9688  "multiversioned function must have a prototype">;
9689def err_multiversion_no_other_attrs : Error<
9690  "attribute '%select{target|cpu_specific|cpu_dispatch}0' multiversioning cannot be combined"
9691  " with other attributes">;
9692def err_multiversion_diff : Error<
9693  "multiversioned function declaration has a different %select{calling convention"
9694  "|return type|constexpr specification|inline specification|storage class|"
9695  "linkage}0">;
9696def err_multiversion_doesnt_support : Error<
9697  "attribute '%select{target|cpu_specific|cpu_dispatch}0' multiversioned functions do not "
9698  "yet support %select{function templates|virtual functions|"
9699  "deduced return types|constructors|destructors|deleted functions|"
9700  "defaulted functions|constexpr functions|consteval function}1">;
9701def err_multiversion_not_allowed_on_main : Error<
9702  "'main' cannot be a multiversioned function">;
9703def err_multiversion_not_supported : Error<
9704 "function multiversioning is not supported on the current target">;
9705def err_multiversion_types_mixed : Error<
9706  "multiversioning attributes cannot be combined">;
9707def err_cpu_dispatch_mismatch : Error<
9708 "'cpu_dispatch' function redeclared with different CPUs">;
9709def err_cpu_specific_multiple_defs : Error<
9710 "multiple 'cpu_specific' functions cannot specify the same CPU: %0">;
9711def warn_multiversion_duplicate_entries : Warning<
9712 "CPU list contains duplicate entries; attribute ignored">,
9713  InGroup<FunctionMultiVersioning>;
9714def warn_dispatch_body_ignored : Warning<
9715  "body of cpu_dispatch function will be ignored">,
9716  InGroup<FunctionMultiVersioning>;
9717
9718// three-way comparison operator diagnostics
9719def err_implied_comparison_category_type_not_found : Error<
9720  "cannot deduce return type of 'operator<=>' because type '%0' was not found; "
9721  "include <compare>">;
9722def err_spaceship_argument_narrowing : Error<
9723  "argument to 'operator<=>' "
9724  "%select{cannot be narrowed from type %1 to %2|"
9725  "evaluates to %1, which cannot be narrowed to type %2}0">;
9726def err_std_compare_type_not_supported : Error<
9727  "standard library implementation of %0 is not supported; "
9728   "%select{member '%2' does not have expected form|"
9729   "member '%2' is missing|"
9730   "the type is not trivially copyable|"
9731   "the type does not have the expected form}1">;
9732
9733// Memory Tagging Extensions (MTE) diagnostics
9734def err_memtag_arg_null_or_pointer : Error<
9735  "%0 argument of MTE builtin function must be a null or a pointer (%1 invalid)">;
9736def err_memtag_any2arg_pointer : Error<
9737  "at least one argument of MTE builtin function must be a pointer (%0, %1 invalid)">;
9738def err_memtag_arg_must_be_pointer : Error<
9739  "%0 argument of MTE builtin function must be a pointer (%1 invalid)">;
9740def err_memtag_arg_must_be_integer : Error<
9741  "%0 argument of MTE builtin function must be an integer type (%1 invalid)">;
9742def err_memtag_arg_must_be_unsigned : Error<
9743  "%0 argument  of MTE builtin function must be an unsigned integer type (%1 invalid)">;
9744
9745def warn_dereference_of_noderef_type : Warning<
9746  "dereferencing %0; was declared with a 'noderef' type">, InGroup<NoDeref>;
9747def warn_dereference_of_noderef_type_no_decl : Warning<
9748  "dereferencing expression marked as 'noderef'">, InGroup<NoDeref>;
9749def warn_noderef_on_non_pointer_or_array : Warning<
9750  "'noderef' can only be used on an array or pointer type">, InGroup<IgnoredAttributes>;
9751def warn_noderef_to_dereferenceable_pointer : Warning<
9752  "casting to dereferenceable pointer removes 'noderef' attribute">, InGroup<NoDeref>;
9753
9754def err_builtin_launder_invalid_arg : Error<
9755  "%select{non-pointer|function pointer|void pointer}0 argument to "
9756  "'__builtin_launder' is not allowed">;
9757
9758def err_bit_cast_non_trivially_copyable : Error<
9759  "__builtin_bit_cast %select{source|destination}0 type must be trivially copyable">;
9760def err_bit_cast_type_size_mismatch : Error<
9761  "__builtin_bit_cast source size does not equal destination size (%0 vs %1)">;
9762} // end of sema component.
9763