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1 // Copyright (C) 2016 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //      http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #ifndef ABI_WRAPPERS_H_
16 #define ABI_WRAPPERS_H_
17 
18 #pragma clang diagnostic push
19 #pragma clang diagnostic ignored "-Wunused-parameter"
20 #pragma clang diagnostic ignored "-Wnested-anon-types"
21 #include "proto/abi_dump.pb.h"
22 #pragma clang diagnostic pop
23 
24 #include <clang/AST/AST.h>
25 #include <clang/AST/ASTConsumer.h>
26 #include <clang/AST/Mangle.h>
27 #include <clang/AST/VTableBuilder.h>
28 #include <clang/Frontend/CompilerInstance.h>
29 
30 namespace abi_wrapper {
31 class ABIWrapper {
32  public:
33   ABIWrapper(clang::MangleContext *mangle_contextp,
34              clang::ASTContext *ast_contextp,
35              const clang::CompilerInstance *cip);
36 
37   static std::string GetDeclSourceFile(const clang::Decl *decl,
38                                        const clang::CompilerInstance *cip);
39 
40   static std::string GetMangledNameDecl(const clang::NamedDecl *decl,
41                                         clang::MangleContext *mangle_context);
42  protected:
43   abi_dump::AccessSpecifier AccessClangToDump(
44       const clang::AccessSpecifier sp) const;
45 
46   bool SetupTemplateParamNames(abi_dump::TemplateInfo *tinfo,
47                                clang::TemplateParameterList *pl) const;
48 
49   bool SetupTemplateArguments(abi_dump::TemplateInfo *tinfo,
50                               const clang::TemplateArgumentList *tl) const;
51 
52   std::string QualTypeToString(const clang::QualType &sweet_qt) const;
53 
54   std::string GetTagDeclQualifiedName(const clang::TagDecl *decl) const;
55 
56   bool SetupBasicTypeAbi(abi_dump::BasicTypeAbi *type_abi,
57                          const clang::QualType type, bool dump_size) const;
58 
59   bool SetupBasicNamedAndTypedDecl(
60       abi_dump::BasicNamedAndTypedDecl *basic_named_and_typed_decl,
61       const clang::QualType type, const std::string &name,
62       const clang::AccessSpecifier &access, std::string key,
63       bool dump_size) const;
64 
65   std::string GetTypeLinkageName(const clang::Type *typep) const;
66 
67 protected:
68   const clang::CompilerInstance *cip_;
69   clang::MangleContext *mangle_contextp_;
70   clang::ASTContext *ast_contextp_;
71 };
72 
73 class RecordDeclWrapper : public ABIWrapper {
74  public:
75   RecordDeclWrapper(clang::MangleContext *mangle_contextp,
76                     clang::ASTContext *ast_contextp,
77                     const clang::CompilerInstance *compiler_instance_p,
78                     const clang::RecordDecl *decl);
79 
80   std::unique_ptr<abi_dump::RecordDecl> GetRecordDecl() const;
81 
82  private:
83   const clang::RecordDecl *record_decl_;
84 
85  private:
86   bool SetupRecordInfo(abi_dump::RecordDecl *record_declp,
87                        const std::string &source_file) const;
88 
89   bool SetupRecordFields(abi_dump::RecordDecl *record_declp) const;
90 
91   bool SetupCXXBases(abi_dump::RecordDecl *cxxp,
92                      const clang::CXXRecordDecl *cxx_record_decl) const;
93 
94   bool SetupTemplateInfo(abi_dump::RecordDecl *record_declp,
95                          const clang::CXXRecordDecl *cxx_record_decl) const;
96 
97   bool SetupRecordVTable(abi_dump::RecordDecl *record_declp,
98                          const clang::CXXRecordDecl *cxx_record_decl) const;
99   bool SetupRecordVTableComponent(
100       abi_dump::VTableComponent *added_vtable_component,
101       const clang::VTableComponent &vtable_component) const;
102 
103   bool SetupCXXRecordInfo(abi_dump::RecordDecl *record_declp) const;
104 };
105 
106 class FunctionDeclWrapper : public ABIWrapper {
107  public:
108   FunctionDeclWrapper(clang::MangleContext *mangle_contextp,
109                       clang::ASTContext *ast_contextp,
110                       const clang::CompilerInstance *compiler_instance_p,
111                       const clang::FunctionDecl *decl);
112 
113   std::unique_ptr<abi_dump::FunctionDecl> GetFunctionDecl() const;
114 
115  private:
116   const clang::FunctionDecl *function_decl_;
117 
118  private:
119   bool SetupFunction(abi_dump::FunctionDecl *methodp,
120                      const std::string &source_file) const;
121 
122   bool SetupTemplateInfo(abi_dump::FunctionDecl *functionp) const;
123 
124   bool SetupFunctionParameters(abi_dump::FunctionDecl *functionp) const;
125 };
126 
127 class EnumDeclWrapper : public ABIWrapper {
128  public:
129   EnumDeclWrapper(clang::MangleContext *mangle_contextp,
130                   clang::ASTContext *ast_contextp,
131                   const clang::CompilerInstance *compiler_instance_p,
132                   const clang::EnumDecl *decl);
133 
134   std::unique_ptr<abi_dump::EnumDecl> GetEnumDecl() const;
135 
136  private:
137   const clang::EnumDecl *enum_decl_;
138 
139  private:
140   bool SetupEnum(abi_dump::EnumDecl *enump,
141                  const std::string &source_file) const;
142   bool SetupEnumFields(abi_dump::EnumDecl *enump) const;
143 };
144 
145 class GlobalVarDeclWrapper : public ABIWrapper {
146  public:
147   GlobalVarDeclWrapper(clang::MangleContext *mangle_contextp,
148                   clang::ASTContext *ast_contextp,
149                   const clang::CompilerInstance *compiler_instance_p,
150                   const clang::VarDecl *decl);
151 
152   std::unique_ptr<abi_dump::GlobalVarDecl> GetGlobalVarDecl() const;
153 
154  private:
155   const clang::VarDecl *global_var_decl_;
156  private:
157   bool SetupGlobalVar(abi_dump::GlobalVarDecl *global_varp,
158                       const std::string &source_file) const;
159 };
160 
161 } //end namespace abi_wrapper
162 
163 #endif  // ABI_WRAPPERS_H_
164