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