MultiplexConsumer.cpp revision 263508 
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
98  AddedCXXTemplateSpecialization(const VarTemplateDecl *TD,
99                                 const VarTemplateSpecializationDecl *D);
100  virtual void AddedCXXTemplateSpecialization(const FunctionTemplateDecl *TD,
101                                              const FunctionDecl *D);
102  virtual void DeducedReturnType(const FunctionDecl *FD, QualType ReturnType);
103  virtual void CompletedImplicitDefinition(const FunctionDecl *D);
104  virtual void StaticDataMemberInstantiated(const VarDecl *D);
105  virtual void AddedObjCCategoryToInterface(const ObjCCategoryDecl *CatD,
106                                            const ObjCInterfaceDecl *IFD);
107  virtual void AddedObjCPropertyInClassExtension(const ObjCPropertyDecl *Prop,
108                                            const ObjCPropertyDecl *OrigProp,
109                                            const ObjCCategoryDecl *ClassExt);
110  void DeclarationMarkedUsed(const Decl *D) LLVM_OVERRIDE;
111
112private:
113  std::vector<ASTMutationListener*> Listeners;
114};
115
116MultiplexASTMutationListener::MultiplexASTMutationListener(
117    ArrayRef<ASTMutationListener*> L)
118    : Listeners(L.begin(), L.end()) {
119}
120
121void MultiplexASTMutationListener::CompletedTagDefinition(const TagDecl *D) {
122  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
123    Listeners[i]->CompletedTagDefinition(D);
124}
125
126void MultiplexASTMutationListener::AddedVisibleDecl(
127    const DeclContext *DC, const Decl *D) {
128  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
129    Listeners[i]->AddedVisibleDecl(DC, D);
130}
131
132void MultiplexASTMutationListener::AddedCXXImplicitMember(
133    const CXXRecordDecl *RD, const Decl *D) {
134  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
135    Listeners[i]->AddedCXXImplicitMember(RD, D);
136}
137void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
138    const ClassTemplateDecl *TD, const ClassTemplateSpecializationDecl *D) {
139  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
140    Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
141}
142void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
143    const VarTemplateDecl *TD, const VarTemplateSpecializationDecl *D) {
144  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
145    Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
146}
147void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
148    const FunctionTemplateDecl *TD, const FunctionDecl *D) {
149  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
150    Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
151}
152void MultiplexASTMutationListener::DeducedReturnType(const FunctionDecl *FD,
153                                                     QualType ReturnType) {
154  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
155    Listeners[i]->DeducedReturnType(FD, ReturnType);
156}
157void MultiplexASTMutationListener::CompletedImplicitDefinition(
158                                                        const FunctionDecl *D) {
159  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
160    Listeners[i]->CompletedImplicitDefinition(D);
161}
162void MultiplexASTMutationListener::StaticDataMemberInstantiated(
163                                                             const VarDecl *D) {
164  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
165    Listeners[i]->StaticDataMemberInstantiated(D);
166}
167void MultiplexASTMutationListener::AddedObjCCategoryToInterface(
168                                                 const ObjCCategoryDecl *CatD,
169                                                 const ObjCInterfaceDecl *IFD) {
170  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
171    Listeners[i]->AddedObjCCategoryToInterface(CatD, IFD);
172}
173void MultiplexASTMutationListener::AddedObjCPropertyInClassExtension(
174                                             const ObjCPropertyDecl *Prop,
175                                             const ObjCPropertyDecl *OrigProp,
176                                             const ObjCCategoryDecl *ClassExt) {
177  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
178    Listeners[i]->AddedObjCPropertyInClassExtension(Prop, OrigProp, ClassExt);
179}
180void MultiplexASTMutationListener::DeclarationMarkedUsed(const Decl *D) {
181  for (size_t i = 0, e = Listeners.size(); i != e; ++i)
182    Listeners[i]->DeclarationMarkedUsed(D);
183}
184
185}  // end namespace clang
186
187
188MultiplexConsumer::MultiplexConsumer(ArrayRef<ASTConsumer*> C)
189    : Consumers(C.begin(), C.end()),
190      MutationListener(0), DeserializationListener(0) {
191  // Collect the mutation listeners and deserialization listeners of all
192  // children, and create a multiplex listener each if so.
193  std::vector<ASTMutationListener*> mutationListeners;
194  std::vector<ASTDeserializationListener*> serializationListeners;
195  for (size_t i = 0, e = Consumers.size(); i != e; ++i) {
196    ASTMutationListener* mutationListener =
197        Consumers[i]->GetASTMutationListener();
198    if (mutationListener)
199      mutationListeners.push_back(mutationListener);
200    ASTDeserializationListener* serializationListener =
201        Consumers[i]->GetASTDeserializationListener();
202    if (serializationListener)
203      serializationListeners.push_back(serializationListener);
204  }
205  if (mutationListeners.size()) {
206    MutationListener.reset(new MultiplexASTMutationListener(mutationListeners));
207  }
208  if (serializationListeners.size()) {
209    DeserializationListener.reset(
210        new MultiplexASTDeserializationListener(serializationListeners));
211  }
212}
213
214MultiplexConsumer::~MultiplexConsumer() {
215  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
216    delete Consumers[i];
217}
218
219void MultiplexConsumer::Initialize(ASTContext &Context) {
220  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
221    Consumers[i]->Initialize(Context);
222}
223
224bool MultiplexConsumer::HandleTopLevelDecl(DeclGroupRef D) {
225  bool Continue = true;
226  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
227    Continue = Continue && Consumers[i]->HandleTopLevelDecl(D);
228  return Continue;
229}
230
231void  MultiplexConsumer::HandleCXXStaticMemberVarInstantiation(VarDecl *VD) {
232  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
233    Consumers[i]->HandleCXXStaticMemberVarInstantiation(VD);
234}
235
236void MultiplexConsumer::HandleInterestingDecl(DeclGroupRef D) {
237  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
238    Consumers[i]->HandleInterestingDecl(D);
239}
240
241void MultiplexConsumer::HandleTranslationUnit(ASTContext &Ctx) {
242  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
243    Consumers[i]->HandleTranslationUnit(Ctx);
244}
245
246void MultiplexConsumer::HandleTagDeclDefinition(TagDecl *D) {
247  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
248    Consumers[i]->HandleTagDeclDefinition(D);
249}
250
251void MultiplexConsumer::HandleCXXImplicitFunctionInstantiation(FunctionDecl *D){
252  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
253    Consumers[i]->HandleCXXImplicitFunctionInstantiation(D);
254}
255
256void MultiplexConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef D) {
257  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
258    Consumers[i]->HandleTopLevelDeclInObjCContainer(D);
259}
260
261void MultiplexConsumer::CompleteTentativeDefinition(VarDecl *D) {
262  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
263    Consumers[i]->CompleteTentativeDefinition(D);
264}
265
266void MultiplexConsumer::HandleVTable(
267    CXXRecordDecl *RD, bool DefinitionRequired) {
268  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
269    Consumers[i]->HandleVTable(RD, DefinitionRequired);
270}
271
272ASTMutationListener *MultiplexConsumer::GetASTMutationListener() {
273  return MutationListener.get();
274}
275
276ASTDeserializationListener *MultiplexConsumer::GetASTDeserializationListener() {
277  return DeserializationListener.get();
278}
279
280void MultiplexConsumer::PrintStats() {
281  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
282    Consumers[i]->PrintStats();
283}
284
285void MultiplexConsumer::InitializeSema(Sema &S) {
286  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
287    if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumers[i]))
288      SC->InitializeSema(S);
289}
290
291void MultiplexConsumer::ForgetSema() {
292  for (size_t i = 0, e = Consumers.size(); i != e; ++i)
293    if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumers[i]))
294      SC->ForgetSema();
295}
296