1 //===-- ClangASTMetadata.h --------------------------------------*- C++ -*-===// 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 #ifndef LLDB_SOURCE_PLUGINS_EXPRESSIONPARSER_CLANG_CLANGASTMETADATA_H 10 #define LLDB_SOURCE_PLUGINS_EXPRESSIONPARSER_CLANG_CLANGASTMETADATA_H 11 12 #include "lldb/Core/dwarf.h" 13 #include "lldb/lldb-defines.h" 14 #include "lldb/lldb-enumerations.h" 15 16 namespace lldb_private { 17 18 class ClangASTMetadata { 19 public: 20 ClangASTMetadata() 21 : m_user_id(0), m_union_is_user_id(false), m_union_is_isa_ptr(false), 22 m_has_object_ptr(false), m_is_self(false), m_is_dynamic_cxx(true), 23 m_is_forcefully_completed(false) {} 24 25 bool GetIsDynamicCXXType() const { return m_is_dynamic_cxx; } 26 27 void SetIsDynamicCXXType(bool b) { m_is_dynamic_cxx = b; } 28 29 void SetUserID(lldb::user_id_t user_id) { 30 m_user_id = user_id; 31 m_union_is_user_id = true; 32 m_union_is_isa_ptr = false; 33 } 34 35 lldb::user_id_t GetUserID() const { 36 if (m_union_is_user_id) 37 return m_user_id; 38 else 39 return LLDB_INVALID_UID; 40 } 41 42 void SetISAPtr(uint64_t isa_ptr) { 43 m_isa_ptr = isa_ptr; 44 m_union_is_user_id = false; 45 m_union_is_isa_ptr = true; 46 } 47 48 uint64_t GetISAPtr() const { 49 if (m_union_is_isa_ptr) 50 return m_isa_ptr; 51 else 52 return 0; 53 } 54 55 void SetObjectPtrName(const char *name) { 56 m_has_object_ptr = true; 57 if (strcmp(name, "self") == 0) 58 m_is_self = true; 59 else if (strcmp(name, "this") == 0) 60 m_is_self = false; 61 else 62 m_has_object_ptr = false; 63 } 64 65 lldb::LanguageType GetObjectPtrLanguage() const { 66 if (m_has_object_ptr) { 67 if (m_is_self) 68 return lldb::eLanguageTypeObjC; 69 else 70 return lldb::eLanguageTypeC_plus_plus; 71 } 72 return lldb::eLanguageTypeUnknown; 73 } 74 75 const char *GetObjectPtrName() const { 76 if (m_has_object_ptr) { 77 if (m_is_self) 78 return "self"; 79 else 80 return "this"; 81 } else 82 return nullptr; 83 } 84 85 bool HasObjectPtr() const { return m_has_object_ptr; } 86 87 /// A type is "forcefully completed" if it was declared complete to satisfy an 88 /// AST invariant (e.g. base classes must be complete types), but in fact we 89 /// were not able to find a actual definition for it. 90 bool IsForcefullyCompleted() const { return m_is_forcefully_completed; } 91 92 void SetIsForcefullyCompleted(bool value = true) { 93 m_is_forcefully_completed = true; 94 } 95 96 void Dump(Stream *s); 97 98 private: 99 union { 100 lldb::user_id_t m_user_id; 101 uint64_t m_isa_ptr; 102 }; 103 104 bool m_union_is_user_id : 1, m_union_is_isa_ptr : 1, m_has_object_ptr : 1, 105 m_is_self : 1, m_is_dynamic_cxx : 1, m_is_forcefully_completed : 1; 106 }; 107 108 } // namespace lldb_private 109 110 #endif // LLDB_SOURCE_PLUGINS_EXPRESSIONPARSER_CLANG_CLANGASTMETADATA_H 111