void FunctionDecl::Destroy(ASTContext& C) {
if (Body && Body.isOffset())
Body.get(C.getExternalSource())->Destroy(C);
for (param_iterator I=param_begin(), E=param_end(); I!=E; ++I)
(*I)->Destroy(C);
C.Deallocate(ParamInfo);
Decl::Destroy(C);
}
/// ParseAST - Parse the entire file specified, notifying the ASTConsumer as
/// the file is parsed. This inserts the parsed decls into the translation unit
/// held by Ctx.
///
void clang::ParseAST(Preprocessor &PP, ASTConsumer *Consumer,
ASTContext &Ctx, bool PrintStats,
bool CompleteTranslationUnit) {
// Collect global stats on Decls/Stmts (until we have a module streamer).
if (PrintStats) {
Decl::CollectingStats(true);
Stmt::CollectingStats(true);
}
Sema S(PP, Ctx, *Consumer, CompleteTranslationUnit);
Parser P(PP, S);
PP.EnterMainSourceFile();
// Initialize the parser.
P.Initialize();
Consumer->Initialize(Ctx);
if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumer))
SC->InitializeSema(S);
if (ExternalASTSource *External = Ctx.getExternalSource()) {
if (ExternalSemaSource *ExternalSema =
dyn_cast<ExternalSemaSource>(External))
ExternalSema->InitializeSema(S);
External->StartTranslationUnit(Consumer);
}
Parser::DeclGroupPtrTy ADecl;
while (!P.ParseTopLevelDecl(ADecl)) { // Not end of file.
// If we got a null return and something *was* parsed, ignore it. This
// is due to a top-level semicolon, an action override, or a parse error
// skipping something.
if (ADecl)
Consumer->HandleTopLevelDecl(ADecl.getAsVal<DeclGroupRef>());
};
Consumer->HandleTranslationUnit(Ctx);
if (PrintStats) {
fprintf(stderr, "\nSTATISTICS:\n");
P.getActions().PrintStats();
Ctx.PrintStats();
Decl::PrintStats();
Stmt::PrintStats();
Consumer->PrintStats();
Decl::CollectingStats(false);
Stmt::CollectingStats(false);
}
}
void StoredDeclsList::materializeDecls(ASTContext &Context) {
if (isNull())
return;
switch ((DataKind)(Data & 0x03)) {
case DK_Decl:
case DK_Decl_Vector:
break;
case DK_DeclID: {
// Resolve this declaration ID to an actual declaration by
// querying the external AST source.
unsigned DeclID = Data >> 2;
ExternalASTSource *Source = Context.getExternalSource();
assert(Source && "No external AST source available!");
Data = reinterpret_cast<uintptr_t>(Source->GetDecl(DeclID));
break;
}
case DK_ID_Vector: {
// We have a vector of declaration IDs. Resolve all of them to
// actual declarations.
VectorTy &Vector = *getAsVector();
ExternalASTSource *Source = Context.getExternalSource();
assert(Source && "No external AST source available!");
for (unsigned I = 0, N = Vector.size(); I != N; ++I)
Vector[I] = reinterpret_cast<uintptr_t>(Source->GetDecl(Vector[I]));
Data = (Data & ~0x03) | DK_Decl_Vector;
break;
}
}
}
uint32_t ExternalASTSource::incrementGeneration(ASTContext &C) {
uint32_t OldGeneration = CurrentGeneration;
// Make sure the generation of the topmost external source for the context is
// incremented. That might not be us.
auto *P = C.getExternalSource();
if (P && P != this)
CurrentGeneration = P->incrementGeneration(C);
else {
// FIXME: Only bump the generation counter if the current generation number
// has been observed?
if (!++CurrentGeneration)
llvm::report_fatal_error("generation counter overflowed", false);
}
return OldGeneration;
}
void FunctionDecl::Destroy(ASTContext& C) {
if (Body && Body.isOffset())
Body.get(C.getExternalSource())->Destroy(C);
for (param_iterator I=param_begin(), E=param_end(); I!=E; ++I)
(*I)->Destroy(C);
FunctionTemplateSpecializationInfo *FTSInfo
= TemplateOrSpecialization.dyn_cast<FunctionTemplateSpecializationInfo*>();
if (FTSInfo)
C.Deallocate(FTSInfo);
MemberSpecializationInfo *MSInfo
= TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>();
if (MSInfo)
C.Deallocate(MSInfo);
C.Deallocate(ParamInfo);
Decl::Destroy(C);
}
/// ParseAST - Parse the entire file specified, notifying the ASTConsumer as
/// the file is parsed. This inserts the parsed decls into the translation unit
/// held by Ctx.
///
void clang::ParseAST(Preprocessor &PP, ASTConsumer *Consumer,
ASTContext &Ctx, bool PrintStats,
bool CompleteTranslationUnit,
CodeCompleteConsumer *CompletionConsumer) {
// Collect global stats on Decls/Stmts (until we have a module streamer).
if (PrintStats) {
Decl::CollectingStats(true);
Stmt::CollectingStats(true);
}
Sema S(PP, Ctx, *Consumer, CompleteTranslationUnit, CompletionConsumer);
Parser P(PP, S);
PP.EnterMainSourceFile();
// Initialize the parser.
P.Initialize();
Consumer->Initialize(Ctx);
if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumer))
SC->InitializeSema(S);
if (ExternalASTSource *External = Ctx.getExternalSource()) {
if (ExternalSemaSource *ExternalSema =
dyn_cast<ExternalSemaSource>(External))
ExternalSema->InitializeSema(S);
External->StartTranslationUnit(Consumer);
}
Parser::DeclGroupPtrTy ADecl;
while (!P.ParseTopLevelDecl(ADecl)) { // Not end of file.
// If we got a null return and something *was* parsed, ignore it. This
// is due to a top-level semicolon, an action override, or a parse error
// skipping something.
if (ADecl)
Consumer->HandleTopLevelDecl(ADecl.getAsVal<DeclGroupRef>());
};
// Check for any pending objective-c implementation decl.
while ((ADecl = P.FinishPendingObjCActions()))
Consumer->HandleTopLevelDecl(ADecl.getAsVal<DeclGroupRef>());
// Process any TopLevelDecls generated by #pragma weak.
for (llvm::SmallVector<Decl*,2>::iterator
I = S.WeakTopLevelDecls().begin(),
E = S.WeakTopLevelDecls().end(); I != E; ++I)
Consumer->HandleTopLevelDecl(DeclGroupRef(*I));
// Dump record layouts, if requested.
if (PP.getLangOptions().DumpRecordLayouts)
DumpRecordLayouts(Ctx);
Consumer->HandleTranslationUnit(Ctx);
if (ExternalSemaSource *ESS =
dyn_cast_or_null<ExternalSemaSource>(Ctx.getExternalSource()))
ESS->ForgetSema();
if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumer))
SC->ForgetSema();
if (PrintStats) {
fprintf(stderr, "\nSTATISTICS:\n");
P.getActions().PrintStats();
Ctx.PrintStats();
Decl::PrintStats();
Stmt::PrintStats();
Consumer->PrintStats();
}
}
