IndexDecl.cpp revision 6ec43adc39006a7fce94188956d0239bd54c0363 
1//===- CIndexHigh.cpp - Higher level API functions ------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "IndexingContext.h"
11
12#include "clang/AST/DeclVisitor.h"
13
14using namespace clang;
15using namespace cxindex;
16
17namespace {
18
19class IndexingDeclVisitor : public DeclVisitor<IndexingDeclVisitor, bool> {
20  IndexingContext &IndexCtx;
21
22public:
23  explicit IndexingDeclVisitor(IndexingContext &indexCtx)
24    : IndexCtx(indexCtx) { }
25
26  bool VisitFunctionDecl(FunctionDecl *D) {
27    IndexCtx.handleFunction(D);
28    IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), D);
29    if (D->isThisDeclarationADefinition()) {
30      const Stmt *Body = D->getBody();
31      if (Body) {
32        IndexCtx.indexBody(Body, D);
33      }
34    }
35    return true;
36  }
37
38  bool VisitVarDecl(VarDecl *D) {
39    IndexCtx.handleVar(D);
40    IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), D);
41    return true;
42  }
43
44  bool VisitFieldDecl(FieldDecl *D) {
45    IndexCtx.handleField(D);
46    IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), D);
47    return true;
48  }
49
50  bool VisitEnumConstantDecl(EnumConstantDecl *D) {
51    IndexCtx.handleEnumerator(D);
52    return true;
53  }
54
55  bool VisitTypedefDecl(TypedefDecl *D) {
56    IndexCtx.handleTypedef(D);
57    IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), D);
58    return true;
59  }
60
61  bool VisitTagDecl(TagDecl *D) {
62    // Non-free standing tags are handled in indexTypeSourceInfo.
63    if (D->isFreeStanding())
64      IndexCtx.indexTagDecl(D);
65    return true;
66  }
67
68  bool VisitObjCClassDecl(ObjCClassDecl *D) {
69    IndexCtx.handleObjCClass(D);
70    return true;
71  }
72
73  bool VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
74    ObjCForwardProtocolDecl::protocol_loc_iterator LI = D->protocol_loc_begin();
75    for (ObjCForwardProtocolDecl::protocol_iterator
76           I = D->protocol_begin(), E = D->protocol_end(); I != E; ++I, ++LI) {
77      SourceLocation Loc = *LI;
78      ObjCProtocolDecl *PD = *I;
79
80      bool isRedeclaration = PD->getLocation() != Loc;
81      IndexCtx.handleObjCForwardProtocol(PD, Loc, isRedeclaration);
82    }
83    return true;
84  }
85
86  bool VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
87    // Forward decls are handled at VisitObjCClassDecl.
88    if (D->isForwardDecl())
89      return true;
90
91    IndexCtx.handleObjCInterface(D);
92
93    IndexCtx.indexTUDeclsInObjCContainer();
94    IndexCtx.indexDeclContext(D);
95    return true;
96  }
97
98  bool VisitObjCProtocolDecl(ObjCProtocolDecl *D) {
99    // Forward decls are handled at VisitObjCForwardProtocolDecl.
100    if (D->isForwardDecl())
101      return true;
102
103    IndexCtx.handleObjCProtocol(D);
104
105    IndexCtx.indexTUDeclsInObjCContainer();
106    IndexCtx.indexDeclContext(D);
107    return true;
108  }
109
110  bool VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
111    IndexCtx.handleObjCImplementation(D);
112
113    IndexCtx.indexTUDeclsInObjCContainer();
114    IndexCtx.indexDeclContext(D);
115    return true;
116  }
117
118  bool VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
119    IndexCtx.handleObjCCategory(D);
120
121    IndexCtx.indexTUDeclsInObjCContainer();
122    IndexCtx.indexDeclContext(D);
123    return true;
124  }
125
126  bool VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
127    if (D->getCategoryDecl()->getLocation().isInvalid())
128      return true;
129
130    IndexCtx.handleObjCCategoryImpl(D);
131
132    IndexCtx.indexTUDeclsInObjCContainer();
133    IndexCtx.indexDeclContext(D);
134    return true;
135  }
136
137  bool VisitObjCMethodDecl(ObjCMethodDecl *D) {
138    IndexCtx.handleObjCMethod(D);
139    IndexCtx.indexTypeSourceInfo(D->getResultTypeSourceInfo(), D);
140    for (ObjCMethodDecl::param_iterator
141           I = D->param_begin(), E = D->param_end(); I != E; ++I)
142      IndexCtx.indexTypeSourceInfo((*I)->getTypeSourceInfo(), D);
143
144    if (D->isThisDeclarationADefinition()) {
145      const Stmt *Body = D->getBody();
146      if (Body) {
147        IndexCtx.indexBody(Body, D);
148      }
149    }
150    return true;
151  }
152
153  bool VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
154    IndexCtx.handleObjCProperty(D);
155    IndexCtx.indexTypeSourceInfo(D->getTypeSourceInfo(), D);
156    return true;
157  }
158};
159
160} // anonymous namespace
161
162void IndexingContext::indexDecl(const Decl *D) {
163  bool Handled = IndexingDeclVisitor(*this).Visit(const_cast<Decl*>(D));
164  if (!Handled && isa<DeclContext>(D))
165    indexDeclContext(cast<DeclContext>(D));
166}
167
168void IndexingContext::indexDeclContext(const DeclContext *DC) {
169  for (DeclContext::decl_iterator
170         I = DC->decls_begin(), E = DC->decls_end(); I != E; ++I) {
171    indexDecl(*I);
172  }
173}
174
175void IndexingContext::indexDeclGroupRef(DeclGroupRef DG) {
176  for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) {
177    Decl *D = *I;
178    if (isNotFromSourceFile(D->getLocation()))
179      return;
180
181    if (isa<ObjCMethodDecl>(D))
182      continue; // Wait for the objc container.
183
184    indexDecl(D);
185  }
186}
187
188void IndexingContext::indexTUDeclsInObjCContainer() {
189  for (unsigned i = 0, e = TUDeclsInObjCContainer.size(); i != e; ++i)
190    indexDeclGroupRef(TUDeclsInObjCContainer[i]);
191  TUDeclsInObjCContainer.clear();
192}
193