MultiplexConsumer.cpp revision 9dadfab2faebe40e7dbbfd0801c15174b69bd726 
1//===- MultiplexConsumer.cpp - AST Consumer for PCH Generation --*- C++ -*-===//
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//  This file defines the MultiplexConsumer class. It also declares and defines
11//  MultiplexASTDeserializationListener and  MultiplexASTMutationListener, which
12//  are implementation details of MultiplexConsumer.
13//
14//===----------------------------------------------------------------------===//
15
16#include "clang/Frontend/MultiplexConsumer.h"
17#include "clang/AST/ASTMutationListener.h"
18#include "clang/AST/DeclGroup.h"
19#include "clang/Serialization/ASTDeserializationListener.h"
20
21using namespace clang;
22
23namespace clang {
24
25// This ASTDeserializationListener forwards its notifications to a set of
26// child listeners.
27class MultiplexASTDeserializationListener
28    : public ASTDeserializationListener {
29public:
30  // Does NOT take ownership of the elements in L.
31  MultiplexASTDeserializationListener(
32      const std::vector<ASTDeserializationListener*>& L);
33  virtual void ReaderInitialized(ASTReader *Reader);
34  virtual void IdentifierRead(serialization::IdentID ID,
35                              IdentifierInfo *II);
36  virtual void TypeRead(serialization::TypeIdx Idx, QualType T);
37  virtual void DeclRead(serialization::DeclID ID, const Decl *D);
38  virtual void SelectorRead(serialization::SelectorID iD, Selector Sel);
39  virtual void MacroDefinitionRead(serialization::PreprocessedEntityID,
40                                   MacroDefinition *MD);
41private:
42  std::vector<ASTDeserializationListener*> Listeners;
43};
44
45MultiplexASTDeserializationListener::MultiplexASTDeserializationListener(
46      const std::vector<ASTDeserializationListener*>& L)
47    : Listeners(L) {
48}
49
50void MultiplexASTDeserializationListener::ReaderInitialized(
51    ASTReader *Reader) {
52  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
53    Listeners[i]->ReaderInitialized(Reader);
54}
55
56void MultiplexASTDeserializationListener::IdentifierRead(
57    serialization::IdentID ID, IdentifierInfo *II) {
58  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
59    Listeners[i]->IdentifierRead(ID, II);
60}
61
62void MultiplexASTDeserializationListener::TypeRead(
63    serialization::TypeIdx Idx, QualType T) {
64  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
65    Listeners[i]->TypeRead(Idx, T);
66}
67
68void MultiplexASTDeserializationListener::DeclRead(
69    serialization::DeclID ID, const Decl *D) {
70  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
71    Listeners[i]->DeclRead(ID, D);
72}
73
74void MultiplexASTDeserializationListener::SelectorRead(
75    serialization::SelectorID ID, Selector Sel) {
76  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
77    Listeners[i]->SelectorRead(ID, Sel);
78}
79
80void MultiplexASTDeserializationListener::MacroDefinitionRead(
81    serialization::PreprocessedEntityID ID, MacroDefinition *MD) {
82  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
83    Listeners[i]->MacroDefinitionRead(ID, MD);
84}
85
86// This ASTMutationListener forwards its notifications to a set of
87// child listeners.
88class MultiplexASTMutationListener : public ASTMutationListener {
89public:
90  // Does NOT take ownership of the elements in L.
91  MultiplexASTMutationListener(ArrayRef<ASTMutationListener*> L);
92  virtual void CompletedTagDefinition(const TagDecl *D);
93  virtual void AddedVisibleDecl(const DeclContext *DC, const Decl *D);
94  virtual void AddedCXXImplicitMember(const CXXRecordDecl *RD, const Decl *D);
95  virtual void AddedCXXTemplateSpecialization(const ClassTemplateDecl *TD,
96                                    const ClassTemplateSpecializationDecl *D);
97  virtual void AddedCXXTemplateSpecialization(const FunctionTemplateDecl *TD,
98                                              const FunctionDecl *D);
99  virtual void DeducedReturnType(const FunctionDecl *FD, QualType ReturnType);
100  virtual void CompletedImplicitDefinition(const FunctionDecl *D);
101  virtual void StaticDataMemberInstantiated(const VarDecl *D);
102  virtual void AddedObjCCategoryToInterface(const ObjCCategoryDecl *CatD,
103                                            const ObjCInterfaceDecl *IFD);
104  virtual void AddedObjCPropertyInClassExtension(const ObjCPropertyDecl *Prop,
105                                            const ObjCPropertyDecl *OrigProp,
106                                            const ObjCCategoryDecl *ClassExt);
107private:
108  std::vector<ASTMutationListener*> Listeners;
109};
110
111MultiplexASTMutationListener::MultiplexASTMutationListener(
112    ArrayRef<ASTMutationListener*> L)
113    : Listeners(L.begin(), L.end()) {
114}
115
116void MultiplexASTMutationListener::CompletedTagDefinition(const TagDecl *D) {
117  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
118    Listeners[i]->CompletedTagDefinition(D);
119}
120
121void MultiplexASTMutationListener::AddedVisibleDecl(
122    const DeclContext *DC, const Decl *D) {
123  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
124    Listeners[i]->AddedVisibleDecl(DC, D);
125}
126
127void MultiplexASTMutationListener::AddedCXXImplicitMember(
128    const CXXRecordDecl *RD, const Decl *D) {
129  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
130    Listeners[i]->AddedCXXImplicitMember(RD, D);
131}
132void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
133    const ClassTemplateDecl *TD, const ClassTemplateSpecializationDecl *D) {
134  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
135    Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
136}
137void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
138    const FunctionTemplateDecl *TD, const FunctionDecl *D) {
139  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
140    Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
141}
142void MultiplexASTMutationListener::DeducedReturnType(const FunctionDecl *FD,
143                                                     QualType ReturnType) {
144  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
145    Listeners[i]->DeducedReturnType(FD, ReturnType);
146}
147void MultiplexASTMutationListener::CompletedImplicitDefinition(
148                                                        const FunctionDecl *D) {
149  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
150    Listeners[i]->CompletedImplicitDefinition(D);
151}
152void MultiplexASTMutationListener::StaticDataMemberInstantiated(
153                                                             const VarDecl *D) {
154  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
155    Listeners[i]->StaticDataMemberInstantiated(D);
156}
157void MultiplexASTMutationListener::AddedObjCCategoryToInterface(
158                                                 const ObjCCategoryDecl *CatD,
159                                                 const ObjCInterfaceDecl *IFD) {
160  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
161    Listeners[i]->AddedObjCCategoryToInterface(CatD, IFD);
162}
163void MultiplexASTMutationListener::AddedObjCPropertyInClassExtension(
164                                             const ObjCPropertyDecl *Prop,
165                                             const ObjCPropertyDecl *OrigProp,
166                                             const ObjCCategoryDecl *ClassExt) {
167  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
168    Listeners[i]->AddedObjCPropertyInClassExtension(Prop, OrigProp, ClassExt);
169}
170
171}  // end namespace clang
172
173
174MultiplexConsumer::MultiplexConsumer(ArrayRef<ASTConsumer*> C)
175    : Consumers(C.begin(), C.end()),
176      MutationListener(0), DeserializationListener(0) {
177  // Collect the mutation listeners and deserialization listeners of all
178  // children, and create a multiplex listener each if so.
179  std::vector<ASTMutationListener*> mutationListeners;
180  std::vector<ASTDeserializationListener*> serializationListeners;
181  for (size_t i = 0, e = Consumers.size(); i != e; ++i) {
182    ASTMutationListener* mutationListener =
183        Consumers[i]->GetASTMutationListener();
184    if (mutationListener)
185      mutationListeners.push_back(mutationListener);
186    ASTDeserializationListener* serializationListener =
187        Consumers[i]->GetASTDeserializationListener();
188    if (serializationListener)
189      serializationListeners.push_back(serializationListener);
190  }
191  if (mutationListeners.size()) {
192    MutationListener.reset(new MultiplexASTMutationListener(mutationListeners));
193  }
194  if (serializationListeners.size()) {
195    DeserializationListener.reset(
196        new MultiplexASTDeserializationListener(serializationListeners));
197  }
198}
199
200MultiplexConsumer::~MultiplexConsumer() {
201  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
202    delete Consumers[i];
203}
204
205void MultiplexConsumer::Initialize(ASTContext &Context) {
206  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
207    Consumers[i]->Initialize(Context);
208}
209
210bool MultiplexConsumer::HandleTopLevelDecl(DeclGroupRef D) {
211  bool Continue = true;
212  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
213    Continue = Continue && Consumers[i]->HandleTopLevelDecl(D);
214  return Continue;
215}
216
217void  MultiplexConsumer::HandleCXXStaticMemberVarInstantiation(VarDecl *VD) {
218  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
219    Consumers[i]->HandleCXXStaticMemberVarInstantiation(VD);
220}
221
222void MultiplexConsumer::HandleInterestingDecl(DeclGroupRef D) {
223  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
224    Consumers[i]->HandleInterestingDecl(D);
225}
226
227void MultiplexConsumer::HandleTranslationUnit(ASTContext &Ctx) {
228  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
229    Consumers[i]->HandleTranslationUnit(Ctx);
230}
231
232void MultiplexConsumer::HandleTagDeclDefinition(TagDecl *D) {
233  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
234    Consumers[i]->HandleTagDeclDefinition(D);
235}
236
237void MultiplexConsumer::HandleCXXImplicitFunctionInstantiation(FunctionDecl *D){
238  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
239    Consumers[i]->HandleCXXImplicitFunctionInstantiation(D);
240}
241
242void MultiplexConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef D) {
243  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
244    Consumers[i]->HandleTopLevelDeclInObjCContainer(D);
245}
246
247void MultiplexConsumer::CompleteTentativeDefinition(VarDecl *D) {
248  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
249    Consumers[i]->CompleteTentativeDefinition(D);
250}
251
252void MultiplexConsumer::HandleVTable(
253    CXXRecordDecl *RD, bool DefinitionRequired) {
254  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
255    Consumers[i]->HandleVTable(RD, DefinitionRequired);
256}
257
258ASTMutationListener *MultiplexConsumer::GetASTMutationListener() {
259  return MutationListener.get();
260}
261
262ASTDeserializationListener *MultiplexConsumer::GetASTDeserializationListener() {
263  return DeserializationListener.get();
264}
265
266void MultiplexConsumer::PrintStats() {
267  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
268    Consumers[i]->PrintStats();
269}
270
271void MultiplexConsumer::InitializeSema(Sema &S) {
272  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
273    if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumers[i]))
274      SC->InitializeSema(S);
275}
276
277void MultiplexConsumer::ForgetSema() {
278  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
279    if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumers[i]))
280      SC->ForgetSema();
281}
282