xref: /illumos-gate/usr/src/test/util-tests/tests/demangle/rust.c (revision 8a2b682e57a046b828f37bcde1776f131ef4629f)
1 /*
2  * Copyright (c) 2014 Alex Crichton
3  *
4  * Permission is hereby granted, free of charge, to any
5  * person obtaining a copy of this software and associated
6  * documentation files (the "Software"), to deal in the
7  * Software without restriction, including without
8  * limitation the rights to use, copy, modify, merge,
9  * publish, distribute, sublicense, and/or sell copies of
10  * the Software, and to permit persons to whom the Software
11  * is furnished to do so, subject to the following
12  * conditions:
13  *
14  * The above copyright notice and this permission notice
15  * shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
19  * ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
20  * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
21  * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
22  * SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
23  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
25  * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
26  * DEALINGS IN THE SOFTWARE.
27  */
28 /*
29  * Copyright 2019, Joyent, Inc.
30  */
31 
32 /*
33  * Test cases taken from rustc-demangle 0.1.9
34  */
35 #include <errno.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 #include <sys/sysmacros.h>
40 #include <demangle-sys.h>
41 
42 typedef struct rust_test_case {
43 	const char *mangled;
44 	const char *demangled;
45 } rust_test_case_t;
46 #define	T(_m, _d) { .mangled = _m, .demangled = _d }
47 #define	T_ERR(_m) { .mangled = _m }
48 
49 typedef struct rust_test_grp {
50 	const char		*name;
51 	rust_test_case_t	tests[];
52 } rust_test_grp_t;
53 #define	GROUP(_n, ...)			\
54 	static rust_test_grp_t _n = {	\
55 		.name = #_n,		\
56 		.tests = {		\
57 			__VA_ARGS__,	\
58 			{ NULL, NULL }	\
59 		}			\
60 	}
61 
62 GROUP(demangle,
63     T_ERR("test"),
64     T("_ZN4testE", "test"),
65     T_ERR("_ZN4test"),
66     T("_ZN4test1a2bcE", "test::a::bc"));
67 
68 GROUP(demangle_dollars,
69     T("_ZN4$RP$E", ")"),
70     T("_ZN8$RF$testE", "&test"),
71     T("_ZN8$BP$test4foobE", "*test::foob"),
72     T("_ZN9$u20$test4foobE", " test::foob"),
73     T("_ZN35Bar$LT$$u5b$u32$u3b$$u20$4$u5d$$GT$E", "Bar<[u32; 4]>"));
74 
75 GROUP(demangle_many_dollars,
76     T("_ZN13test$u20$test4foobE", "test test::foob"),
77     T("_ZN12test$BP$test4foobE", "test*test::foob"));
78 
79 /* BEGIN CSTYLED */
80 GROUP(demangle_osx,
81     T("__ZN5alloc9allocator6Layout9for_value17h02a996811f781011E",
82     "alloc::allocator::Layout::for_value::h02a996811f781011"),
83     T("__ZN38_$LT$core..option..Option$LT$T$GT$$GT$6unwrap18_MSG_FILE_LINE_COL17haf7cb8d5824ee659E",
84     "<core::option::Option<T>>::unwrap::_MSG_FILE_LINE_COL::haf7cb8d5824ee659"),
85     T("__ZN4core5slice89_$LT$impl$u20$core..iter..traits..IntoIterator$u20$for$u20$$RF$$u27$a$u20$$u5b$T$u5d$$GT$9into_iter17h450e234d27262170E",
86     "core::slice::<impl core::iter::traits::IntoIterator for &'a [T]>::into_iter::h450e234d27262170"));
87 /* END CSTYLED */
88 
89 GROUP(demangle_elements_beginning_with_underscore,
90     T("_ZN13_$LT$test$GT$E", "<test>"),
91     T("_ZN28_$u7b$$u7b$closure$u7d$$u7d$E", "{{closure}}"),
92     T("_ZN15__STATIC_FMTSTRE", "__STATIC_FMTSTR"));
93 
94 /* BEGIN CSTYLED */
95 GROUP(demangle_trait_impls,
96     T("_ZN71_$LT$Test$u20$$u2b$$u20$$u27$static$u20$as$u20$foo..Bar$LT$Test$GT$$GT$3barE",
97     "<Test + 'static as foo::Bar<Test>>::bar"));
98 /* END CSTYLED */
99 
100 GROUP(invalid_no_chop, T_ERR("_ZNfooE"));
101 
102 /* BEGIN CSTYLED */
103 GROUP(handle_assoc_types,
104     T("_ZN151_$LT$alloc..boxed..Box$LT$alloc..boxed..FnBox$LT$A$C$$u20$Output$u3d$R$GT$$u20$$u2b$$u20$$u27$a$GT$$u20$as$u20$core..ops..function..FnOnce$LT$A$GT$$GT$9call_once17h69e8f44b3723e1caE",
105     "<alloc::boxed::Box<alloc::boxed::FnBox<A, Output=R> + 'a> as core::ops::function::FnOnce<A>>::call_once::h69e8f44b3723e1ca"));
106 /* END CSTYLED */
107 
108 static rust_test_grp_t *rust_tests[] = {
109 	&demangle,
110 	&demangle_dollars,
111 	&demangle_many_dollars,
112 	&demangle_osx,
113 	&demangle_elements_beginning_with_underscore,
114 	&demangle_trait_impls,
115 	&invalid_no_chop,
116 	&handle_assoc_types
117 };
118 
119 static const size_t n_rust_tests = ARRAY_SIZE(rust_tests);
120 
121 static boolean_t
122 check_failure(size_t i, rust_test_case_t *tc, const char *dem, boolean_t res)
123 {
124 	int savederr = errno;
125 
126 	if (dem == NULL && savederr == EINVAL)
127 		return (B_TRUE);
128 
129 	if (res)
130 		(void) printf("FAILURE\n");
131 
132 	if (dem != NULL) {
133 		(void) printf("  [%zu] Successfully demanged an invalid "
134 		    "name\n", i);
135 		(void) printf("         Name: '%s'\n", tc->mangled);
136 		(void) printf("    Demangled: '%s'\n", dem);
137 		return (B_FALSE);
138 	}
139 
140 	(void) printf("  [%zu] demangle() returned an unexpected error\n", i);
141 	(void) printf("    Errno: %d\n", savederr);
142 	return (B_FALSE);
143 }
144 
145 static boolean_t
146 check_success(size_t i, rust_test_case_t *tc, const char *dem, boolean_t res)
147 {
148 	if (dem != NULL && strcmp(tc->demangled, dem) == 0)
149 		return (B_TRUE);
150 
151 	if (res)
152 		(void) printf("FAILURE\n");
153 
154 	if (dem == NULL) {
155 		(void) printf("  [%zu] Failed to demangle '%s'\n", i,
156 		    tc->mangled);
157 		return (B_FALSE);
158 	}
159 
160 	(void) printf("  [%zu] Demangled results do not match.\n", i);
161 	(void) printf("       Mangled: %s\n", tc->mangled);
162 	(void) printf("      Expected: %s\n", tc->demangled);
163 	(void) printf("        Actual: %s\n", dem);
164 	return (B_FALSE);
165 }
166 
167 static boolean_t
168 run_test(rust_test_grp_t *test)
169 {
170 	boolean_t res = B_TRUE;
171 
172 	(void) printf("Test %s: ", test->name);
173 
174 	for (size_t i = 0; test->tests[i].mangled != NULL; i++) {
175 		char *dem;
176 
177 		dem = sysdemangle(test->tests[i].mangled, SYSDEM_LANG_RUST,
178 		    NULL);
179 		if (test->tests[i].demangled == NULL)
180 			res &= check_failure(i, &test->tests[i], dem, res);
181 		else
182 			res &= check_success(i, &test->tests[i], dem, res);
183 
184 		free(dem);
185 	}
186 
187 	if (res)
188 		(void) printf("SUCCESS\n");
189 
190 	return (res);
191 }
192 
193 int
194 main(int argc, char **argv)
195 {
196 	boolean_t ok = B_TRUE;
197 
198 	for (size_t i = 0; i < n_rust_tests; i++)
199 		ok &= run_test(rust_tests[i]);
200 
201 	return (ok ? 0 : 1);
202 }
203 
204 const char *
205 _umem_debug_init(void)
206 {
207 	return ("default,verbose");
208 }
209 
210 const char *
211 _umem_logging_init(void)
212 {
213 	return ("fail,contents");
214 }
215