| 1 | //===- CIndexCXX.cpp - Clang-C Source Indexing Library --------------------===// |
|---|---|
| 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 | // This file implements the libclang support for C++ cursors. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #include "CIndexer.h" |
| 14 | #include "CXCursor.h" |
| 15 | #include "CXType.h" |
| 16 | #include "clang/AST/DeclCXX.h" |
| 17 | #include "clang/AST/DeclTemplate.h" |
| 18 | |
| 19 | using namespace clang; |
| 20 | using namespace clang::cxcursor; |
| 21 | |
| 22 | unsigned clang_isVirtualBase(CXCursor C) { |
| 23 | if (C.kind != CXCursor_CXXBaseSpecifier) |
| 24 | return 0; |
| 25 | |
| 26 | const CXXBaseSpecifier *B = getCursorCXXBaseSpecifier(C); |
| 27 | return B->isVirtual(); |
| 28 | } |
| 29 | |
| 30 | enum CX_CXXAccessSpecifier clang_getCXXAccessSpecifier(CXCursor C) { |
| 31 | AccessSpecifier spec = AS_none; |
| 32 | |
| 33 | if (C.kind == CXCursor_CXXAccessSpecifier || clang_isDeclaration(C.kind)) |
| 34 | spec = getCursorDecl(C)->getAccess(); |
| 35 | else if (C.kind == CXCursor_CXXBaseSpecifier) |
| 36 | spec = getCursorCXXBaseSpecifier(C)->getAccessSpecifier(); |
| 37 | else |
| 38 | return CX_CXXInvalidAccessSpecifier; |
| 39 | |
| 40 | switch (spec) { |
| 41 | case AS_public: return CX_CXXPublic; |
| 42 | case AS_protected: return CX_CXXProtected; |
| 43 | case AS_private: return CX_CXXPrivate; |
| 44 | case AS_none: return CX_CXXInvalidAccessSpecifier; |
| 45 | } |
| 46 | |
| 47 | llvm_unreachable("Invalid AccessSpecifier!"); |
| 48 | } |
| 49 | |
| 50 | enum CXCursorKind clang_getTemplateCursorKind(CXCursor C) { |
| 51 | using namespace clang::cxcursor; |
| 52 | |
| 53 | switch (C.kind) { |
| 54 | case CXCursor_ClassTemplate: |
| 55 | case CXCursor_FunctionTemplate: |
| 56 | if (const TemplateDecl *Template |
| 57 | = dyn_cast_or_null<TemplateDecl>(getCursorDecl(C))) |
| 58 | return MakeCXCursor(Template->getTemplatedDecl(), getCursorTU(C)).kind; |
| 59 | break; |
| 60 | |
| 61 | case CXCursor_ClassTemplatePartialSpecialization: |
| 62 | if (const ClassTemplateSpecializationDecl *PartialSpec |
| 63 | = dyn_cast_or_null<ClassTemplatePartialSpecializationDecl>( |
| 64 | getCursorDecl(C))) { |
| 65 | switch (PartialSpec->getTagKind()) { |
| 66 | case TTK_Interface: |
| 67 | case TTK_Struct: return CXCursor_StructDecl; |
| 68 | case TTK_Class: return CXCursor_ClassDecl; |
| 69 | case TTK_Union: return CXCursor_UnionDecl; |
| 70 | case TTK_Enum: return CXCursor_NoDeclFound; |
| 71 | } |
| 72 | } |
| 73 | break; |
| 74 | |
| 75 | default: |
| 76 | break; |
| 77 | } |
| 78 | |
| 79 | return CXCursor_NoDeclFound; |
| 80 | } |
| 81 | |
| 82 | CXCursor clang_getSpecializedCursorTemplate(CXCursor C) { |
| 83 | if (!clang_isDeclaration(C.kind)) |
| 84 | return clang_getNullCursor(); |
| 85 | |
| 86 | const Decl *D = getCursorDecl(C); |
| 87 | if (!D) |
| 88 | return clang_getNullCursor(); |
| 89 | |
| 90 | Decl *Template = nullptr; |
| 91 | if (const CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(D)) { |
| 92 | if (const ClassTemplatePartialSpecializationDecl *PartialSpec |
| 93 | = dyn_cast<ClassTemplatePartialSpecializationDecl>(CXXRecord)) |
| 94 | Template = PartialSpec->getSpecializedTemplate(); |
| 95 | else if (const ClassTemplateSpecializationDecl *ClassSpec |
| 96 | = dyn_cast<ClassTemplateSpecializationDecl>(CXXRecord)) { |
| 97 | llvm::PointerUnion<ClassTemplateDecl *, |
| 98 | ClassTemplatePartialSpecializationDecl *> Result |
| 99 | = ClassSpec->getSpecializedTemplateOrPartial(); |
| 100 | if (Result.is<ClassTemplateDecl *>()) |
| 101 | Template = Result.get<ClassTemplateDecl *>(); |
| 102 | else |
| 103 | Template = Result.get<ClassTemplatePartialSpecializationDecl *>(); |
| 104 | |
| 105 | } else |
| 106 | Template = CXXRecord->getInstantiatedFromMemberClass(); |
| 107 | } else if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { |
| 108 | Template = Function->getPrimaryTemplate(); |
| 109 | if (!Template) |
| 110 | Template = Function->getInstantiatedFromMemberFunction(); |
| 111 | } else if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { |
| 112 | if (Var->isStaticDataMember()) |
| 113 | Template = Var->getInstantiatedFromStaticDataMember(); |
| 114 | } else if (const RedeclarableTemplateDecl *Tmpl |
| 115 | = dyn_cast<RedeclarableTemplateDecl>(D)) |
| 116 | Template = Tmpl->getInstantiatedFromMemberTemplate(); |
| 117 | |
| 118 | if (!Template) |
| 119 | return clang_getNullCursor(); |
| 120 | |
| 121 | return MakeCXCursor(Template, getCursorTU(C)); |
| 122 | } |
| 123 |