1f51a89d39
These were ignored by git accidentally. We want ALL OF THEM since they all came in the llvm/clang source distribution.
120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
//===--- ParseAST.cpp - Provide the clang::ParseAST method ----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the clang::ParseAST method.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Parse/ParseAST.h"
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#include "clang/Sema/Sema.h"
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#include "clang/Sema/CodeCompleteConsumer.h"
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#include "clang/Sema/SemaConsumer.h"
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#include "clang/Sema/ExternalSemaSource.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/ExternalASTSource.h"
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#include "clang/AST/Stmt.h"
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#include "clang/Parse/Parser.h"
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/Support/CrashRecoveryContext.h"
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#include <cstdio>
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using namespace clang;
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//===----------------------------------------------------------------------===//
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// Public interface to the file
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//===----------------------------------------------------------------------===//
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/// ParseAST - Parse the entire file specified, notifying the ASTConsumer as
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/// the file is parsed. This inserts the parsed decls into the translation unit
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/// held by Ctx.
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///
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void clang::ParseAST(Preprocessor &PP, ASTConsumer *Consumer,
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ASTContext &Ctx, bool PrintStats,
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TranslationUnitKind TUKind,
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CodeCompleteConsumer *CompletionConsumer,
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bool SkipFunctionBodies) {
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OwningPtr<Sema> S(new Sema(PP, Ctx, *Consumer,
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TUKind,
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CompletionConsumer));
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// Recover resources if we crash before exiting this method.
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llvm::CrashRecoveryContextCleanupRegistrar<Sema> CleanupSema(S.get());
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ParseAST(*S.get(), PrintStats, SkipFunctionBodies);
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}
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void clang::ParseAST(Sema &S, bool PrintStats, bool SkipFunctionBodies) {
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// Collect global stats on Decls/Stmts (until we have a module streamer).
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if (PrintStats) {
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Decl::EnableStatistics();
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Stmt::EnableStatistics();
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}
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// Also turn on collection of stats inside of the Sema object.
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bool OldCollectStats = PrintStats;
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std::swap(OldCollectStats, S.CollectStats);
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ASTConsumer *Consumer = &S.getASTConsumer();
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OwningPtr<Parser> ParseOP(new Parser(S.getPreprocessor(), S,
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SkipFunctionBodies));
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Parser &P = *ParseOP.get();
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PrettyStackTraceParserEntry CrashInfo(P);
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// Recover resources if we crash before exiting this method.
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llvm::CrashRecoveryContextCleanupRegistrar<Parser>
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CleanupParser(ParseOP.get());
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S.getPreprocessor().EnterMainSourceFile();
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P.Initialize();
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S.Initialize();
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if (ExternalASTSource *External = S.getASTContext().getExternalSource())
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External->StartTranslationUnit(Consumer);
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bool Abort = false;
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Parser::DeclGroupPtrTy ADecl;
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while (!P.ParseTopLevelDecl(ADecl)) { // Not end of file.
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// If we got a null return and something *was* parsed, ignore it. This
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// is due to a top-level semicolon, an action override, or a parse error
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// skipping something.
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if (ADecl) {
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if (!Consumer->HandleTopLevelDecl(ADecl.get())) {
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Abort = true;
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break;
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}
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}
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};
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if (Abort)
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return;
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// Process any TopLevelDecls generated by #pragma weak.
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for (SmallVector<Decl*,2>::iterator
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I = S.WeakTopLevelDecls().begin(),
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E = S.WeakTopLevelDecls().end(); I != E; ++I)
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Consumer->HandleTopLevelDecl(DeclGroupRef(*I));
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Consumer->HandleTranslationUnit(S.getASTContext());
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std::swap(OldCollectStats, S.CollectStats);
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if (PrintStats) {
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llvm::errs() << "\nSTATISTICS:\n";
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P.getActions().PrintStats();
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S.getASTContext().PrintStats();
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Decl::PrintStats();
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Stmt::PrintStats();
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Consumer->PrintStats();
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}
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}
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