| //===--- ParseAST.cpp - Provide the clang::ParseAST method ----------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the clang::ParseAST method. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/Sema/ParseAST.h" |
| #include "Sema.h" |
| #include "clang/Sema/CodeCompleteConsumer.h" |
| #include "clang/Sema/SemaConsumer.h" |
| #include "clang/Sema/ExternalSemaSource.h" |
| #include "clang/AST/ASTConsumer.h" |
| #include "clang/AST/ExternalASTSource.h" |
| #include "clang/AST/Stmt.h" |
| #include "clang/Parse/Parser.h" |
| #include <cstdio> |
| |
| using namespace clang; |
| |
| static void DumpRecordLayouts(ASTContext &C) { |
| for (ASTContext::type_iterator I = C.types_begin(), E = C.types_end(); |
| I != E; ++I) { |
| const RecordType *RT = dyn_cast<RecordType>(*I); |
| if (!RT) |
| continue; |
| |
| const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl()); |
| if (!RD || RD->isImplicit() || RD->isDependentType() || |
| RD->isInvalidDecl() || !RD->getDefinition()) |
| continue; |
| |
| // FIXME: Do we really need to hard code this? |
| if (RD->getQualifiedNameAsString() == "__va_list_tag") |
| continue; |
| |
| C.DumpRecordLayout(RD, llvm::errs()); |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Public interface to the file |
| //===----------------------------------------------------------------------===// |
| |
| /// 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); |
| if (PP.EnterMainSourceFile()) |
| return; |
| |
| // 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.RetrievePendingObjCImpDecl())) |
| 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(); |
| } |
| } |