5bbb3c8ad9
productions (except the already broken ObjC cases like @class X,Y;) in the parser that can produce more than one Decl return a DeclGroup instead of a Decl, etc. This allows elimination of the Decl::NextDeclarator field, and exposes various clients that should look at all decls in a group, but which were only looking at one (such as the dumper, printer, etc). These have been fixed. Still TODO: 1) there are some FIXME's in the code about potentially using DeclGroup for better location info. 2) ParseObjCAtDirectives should return a DeclGroup due to @class etc. 3) I'm not sure what is going on with StmtIterator.cpp, or if it can be radically simplified now. 4) I put a truly horrible hack in ParseTemplate.cpp. I plan to bring up #3/4 on the mailing list, but don't plan to tackle #1/2 in the short term. llvm-svn: 68002
71 lines
2.1 KiB
C++
71 lines
2.1 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 <llvm/ADT/OwningPtr.h>
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#include "clang/Sema/ParseAST.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/Stmt.h"
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#include "Sema.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 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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// 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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Sema S(PP, Ctx, *Consumer);
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Parser P(PP, S);
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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(Ctx);
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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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Consumer->HandleTopLevelDecl(ADecl.getAsVal<DeclGroupRef>());
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};
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Consumer->HandleTranslationUnit(Ctx);
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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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Ctx.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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}
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