forked from OSchip/llvm-project
70 lines
2.2 KiB
C++
70 lines
2.2 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/Sema/ParseAST.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/ASTConsumer.h"
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#include "Sema.h"
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#include "clang/Parse/Action.h"
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#include "clang/Parse/Parser.h"
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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 takes ownership of the ASTConsumer and
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/// ultimately deletes it.
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void clang::ParseAST(Preprocessor &PP, ASTConsumer *Consumer, bool PrintStats) {
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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::CollectingStats(true);
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Stmt::CollectingStats(true);
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}
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ASTContext Context(PP.getSourceManager(), PP.getTargetInfo(),
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PP.getIdentifierTable(), PP.getSelectorTable());
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Parser P(PP, *new Sema(PP, Context, *Consumer));
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PP.EnterMainSourceFile();
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// Initialize the parser.
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P.Initialize();
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Consumer->Initialize(Context);
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Parser::DeclTy *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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Consumer->HandleTopLevelDecl(static_cast<Decl*>(ADecl));
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};
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if (PrintStats) {
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fprintf(stderr, "\nSTATISTICS:\n");
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P.getActions().PrintStats();
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Context.PrintStats();
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Decl::PrintStats();
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Stmt::PrintStats();
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Consumer->PrintStats();
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Decl::CollectingStats(false);
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Stmt::CollectingStats(false);
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}
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delete Consumer;
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}
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