summaryrefslogtreecommitdiffstats
path: root/tools/libclang/CIndexCXX.cpp
blob: 0f49f65c2b80979f07d687777237bea424fe2b3d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
//===- CIndexCXX.cpp - Clang-C Source Indexing Library --------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the libclang support for C++ cursors.
//
//===----------------------------------------------------------------------===//

#include "CIndexer.h"
#include "CXCursor.h"
#include "CXType.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"

using namespace clang;
using namespace clang::cxcursor;

extern "C" {

unsigned clang_isVirtualBase(CXCursor C) {
  if (C.kind != CXCursor_CXXBaseSpecifier)
    return 0;
  
  CXXBaseSpecifier *B = getCursorCXXBaseSpecifier(C);
  return B->isVirtual();
}

enum CX_CXXAccessSpecifier clang_getCXXAccessSpecifier(CXCursor C) {
  if (C.kind != CXCursor_CXXBaseSpecifier)
    return CX_CXXInvalidAccessSpecifier;
  
  CXXBaseSpecifier *B = getCursorCXXBaseSpecifier(C);
  switch (B->getAccessSpecifier()) {
    case AS_public: return CX_CXXPublic;
    case AS_protected: return CX_CXXProtected;
    case AS_private: return CX_CXXPrivate;
    case AS_none: return CX_CXXInvalidAccessSpecifier;
  }
  
  // FIXME: Clang currently thinks this is reachable.
  return CX_CXXInvalidAccessSpecifier;
}

enum CXCursorKind clang_getTemplateCursorKind(CXCursor C) {
  using namespace clang::cxcursor;
  
  switch (C.kind) {
  case CXCursor_ClassTemplate: 
  case CXCursor_FunctionTemplate:
    if (TemplateDecl *Template
                           = dyn_cast_or_null<TemplateDecl>(getCursorDecl(C)))
      return MakeCXCursor(Template->getTemplatedDecl(), 
                          static_cast<CXTranslationUnit>(C.data[2])).kind;
    break;
      
  case CXCursor_ClassTemplatePartialSpecialization:
    if (ClassTemplateSpecializationDecl *PartialSpec
          = dyn_cast_or_null<ClassTemplatePartialSpecializationDecl>(
                                                            getCursorDecl(C))) {
      switch (PartialSpec->getTagKind()) {
      case TTK_Class: return CXCursor_ClassDecl;
      case TTK_Struct: return CXCursor_StructDecl;
      case TTK_Union: return CXCursor_UnionDecl;
      case TTK_Enum: return CXCursor_NoDeclFound;
      }
    }
    break;
      
  default:
    break;
  }
  
  return CXCursor_NoDeclFound;
}

CXCursor clang_getSpecializedCursorTemplate(CXCursor C) {
  if (!clang_isDeclaration(C.kind))
    return clang_getNullCursor();
    
  Decl *D = getCursorDecl(C);
  if (!D)
    return clang_getNullCursor();
  
  Decl *Template = 0;
  if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(D)) {
    if (ClassTemplatePartialSpecializationDecl *PartialSpec
          = dyn_cast<ClassTemplatePartialSpecializationDecl>(CXXRecord))
      Template = PartialSpec->getSpecializedTemplate();
    else if (ClassTemplateSpecializationDecl *ClassSpec 
               = dyn_cast<ClassTemplateSpecializationDecl>(CXXRecord)) {
      llvm::PointerUnion<ClassTemplateDecl *,
                         ClassTemplatePartialSpecializationDecl *> Result
        = ClassSpec->getSpecializedTemplateOrPartial();
      if (Result.is<ClassTemplateDecl *>())
        Template = Result.get<ClassTemplateDecl *>();
      else
        Template = Result.get<ClassTemplatePartialSpecializationDecl *>();
      
    } else 
      Template = CXXRecord->getInstantiatedFromMemberClass();
  } else if (FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) {
    Template = Function->getPrimaryTemplate();
    if (!Template)
      Template = Function->getInstantiatedFromMemberFunction();
  } else if (VarDecl *Var = dyn_cast<VarDecl>(D)) {
    if (Var->isStaticDataMember())
      Template = Var->getInstantiatedFromStaticDataMember();
  } else if (RedeclarableTemplateDecl *Tmpl
                                        = dyn_cast<RedeclarableTemplateDecl>(D))
    Template = Tmpl->getInstantiatedFromMemberTemplate();
  
  if (!Template)
    return clang_getNullCursor();
  
  return MakeCXCursor(Template, static_cast<CXTranslationUnit>(C.data[2]));
}
  
} // end extern "C"
OpenPOWER on IntegriCloud