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clang-cc: Refactor ParseInputFollow to clearly split on the two primary cases, 

when we are running an AST consumer and when we are just running the
preprocessor or parser alone.

llvm-svn: 86937
This commit is contained in:
Daniel Dunbar 2009-11-12 02:53:27 +00:00
parent 4806f2ea48
commit 1619831fde
1 changed files with 110 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

210
clang/tools/clang-cc/clang-cc.cpp
View File

@ -756,7 +756,7 @@ static void ProcessInputFile(const CompilerInvocation &CompOpts,
llvm::OwningPtr<ExternalASTSource> Source;
const std::string &ImplicitPCHInclude =
CompOpts.getPreprocessorOpts().getImplicitPCHInclude();
if (Consumer)
if (Consumer) {
ContextOwner.reset(new ASTContext(PP.getLangOptions(),
PP.getSourceManager(),
PP.getTargetInfo(),
@ -765,28 +765,27 @@ static void ProcessInputFile(const CompilerInvocation &CompOpts,
PP.getBuiltinInfo(),
/* FreeMemory = */ !DisableFree,
/* size_reserve = */0));
if (Consumer && !ImplicitPCHInclude.empty()) {
Source.reset(ReadPCHFile(ImplicitPCHInclude, CompOpts, PP, *ContextOwner));
if (!Source)
if (!ImplicitPCHInclude.empty()) {
Source.reset(ReadPCHFile(ImplicitPCHInclude, CompOpts, PP,
*ContextOwner));
if (!Source)
return;
// Attach the PCH reader to the AST context as an external AST source, so
// that declarations will be deserialized from the PCH file as needed.
ContextOwner->setExternalSource(Source);
} else {
// Initialize builtin info when not using PCH.
PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
PP.getLangOptions().NoBuiltin);
}
// Initialize the main file entry. This needs to be delayed until after PCH
// has loaded.
if (InitializeSourceManager(PP, InFile))
return;
// Attach the PCH reader to the AST context as an external AST source, so
// that declarations will be deserialized from the PCH file as needed.
ContextOwner->setExternalSource(Source);
}
// Initialize the main file entry. This needs to be delayed until after PCH
// has loaded.
if (InitializeSourceManager(PP, InFile))
return;
// Initialize builtin info unless we are using PCH.
if (!Consumer || ImplicitPCHInclude.empty())
PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
PP.getLangOptions().NoBuiltin);
// If we have an ASTConsumer, run the parser with it.
if (Consumer) {
CodeCompleteConsumer *(*CreateCodeCompleter)(Sema &, void *) = 0;
void *CreateCodeCompleterData = 0;
@ -807,102 +806,113 @@ static void ProcessInputFile(const CompilerInvocation &CompOpts,
}
}
// Run the AST consumer action.
ParseAST(PP, Consumer.get(), *ContextOwner.get(), Stats,
CompleteTranslationUnit,
CreateCodeCompleter, CreateCodeCompleterData);
}
} else {
// Initialize builtin info.
PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
PP.getLangOptions().NoBuiltin);
// Perform post processing actions and actions which don't use a consumer.
switch (PA) {
default: break;
// Initialize the main file entry. This needs to be delayed until after PCH
// has loaded.
if (InitializeSourceManager(PP, InFile))
return;
case DumpRawTokens: {
llvm::TimeRegion Timer(ClangFrontendTimer);
SourceManager &SM = PP.getSourceManager();
// Start lexing the specified input file.
Lexer RawLex(SM.getMainFileID(), SM, PP.getLangOptions());
RawLex.SetKeepWhitespaceMode(true);
// Run the preprocessor actions.
switch (PA) {
default:
assert(0 && "unexpected program action");
Token RawTok;
RawLex.LexFromRawLexer(RawTok);
while (RawTok.isNot(tok::eof)) {
PP.DumpToken(RawTok, true);
fprintf(stderr, "\n");
case DumpRawTokens: {
llvm::TimeRegion Timer(ClangFrontendTimer);
SourceManager &SM = PP.getSourceManager();
// Start lexing the specified input file.
Lexer RawLex(SM.getMainFileID(), SM, PP.getLangOptions());
RawLex.SetKeepWhitespaceMode(true);
Token RawTok;
RawLex.LexFromRawLexer(RawTok);
while (RawTok.isNot(tok::eof)) {
PP.DumpToken(RawTok, true);
fprintf(stderr, "\n");
RawLex.LexFromRawLexer(RawTok);
}
ClearSourceMgr = true;
break;
}
ClearSourceMgr = true;
break;
}
case DumpTokens: {
llvm::TimeRegion Timer(ClangFrontendTimer);
Token Tok;
// Start preprocessing the specified input file.
PP.EnterMainSourceFile();
do {
PP.Lex(Tok);
PP.DumpToken(Tok, true);
fprintf(stderr, "\n");
} while (Tok.isNot(tok::eof));
ClearSourceMgr = true;
break;
}
case DumpTokens: {
llvm::TimeRegion Timer(ClangFrontendTimer);
Token Tok;
// Start preprocessing the specified input file.
PP.EnterMainSourceFile();
do {
PP.Lex(Tok);
PP.DumpToken(Tok, true);
fprintf(stderr, "\n");
} while (Tok.isNot(tok::eof));
ClearSourceMgr = true;
break;
}
case GeneratePTH: {
llvm::TimeRegion Timer(ClangFrontendTimer);
CacheTokens(PP, static_cast<llvm::raw_fd_ostream*>(OS.get()));
ClearSourceMgr = true;
break;
}
case GeneratePTH: {
llvm::TimeRegion Timer(ClangFrontendTimer);
CacheTokens(PP, static_cast<llvm::raw_fd_ostream*>(OS.get()));
ClearSourceMgr = true;
break;
}
case ParseNoop: {
llvm::TimeRegion Timer(ClangFrontendTimer);
ParseFile(PP, new MinimalAction(PP));
ClearSourceMgr = true;
break;
}
case ParseNoop: {
llvm::TimeRegion Timer(ClangFrontendTimer);
ParseFile(PP, new MinimalAction(PP));
ClearSourceMgr = true;
break;
}
case ParsePrintCallbacks: {
llvm::TimeRegion Timer(ClangFrontendTimer);
ParseFile(PP, CreatePrintParserActionsAction(PP, OS.get()));
ClearSourceMgr = true;
break;
}
case ParsePrintCallbacks: {
llvm::TimeRegion Timer(ClangFrontendTimer);
ParseFile(PP, CreatePrintParserActionsAction(PP, OS.get()));
ClearSourceMgr = true;
break;
}
case PrintPreprocessedInput: {
llvm::TimeRegion Timer(ClangFrontendTimer);
DoPrintPreprocessedInput(PP, OS.get(),
CompOpts.getPreprocessorOutputOpts());
ClearSourceMgr = true;
break;
}
case PrintPreprocessedInput: {
llvm::TimeRegion Timer(ClangFrontendTimer);
DoPrintPreprocessedInput(PP, OS.get(),
CompOpts.getPreprocessorOutputOpts());
ClearSourceMgr = true;
break;
}
case RewriteMacros: {
llvm::TimeRegion Timer(ClangFrontendTimer);
RewriteMacrosInInput(PP, OS.get());
ClearSourceMgr = true;
break;
}
case RewriteMacros: {
llvm::TimeRegion Timer(ClangFrontendTimer);
RewriteMacrosInInput(PP, OS.get());
ClearSourceMgr = true;
break;
}
case RewriteTest: {
llvm::TimeRegion Timer(ClangFrontendTimer);
DoRewriteTest(PP, OS.get());
ClearSourceMgr = true;
break;
}
case RewriteTest: {
llvm::TimeRegion Timer(ClangFrontendTimer);
DoRewriteTest(PP, OS.get());
ClearSourceMgr = true;
break;
}
case RunPreprocessorOnly: { // Just lex as fast as we can, no output.
llvm::TimeRegion Timer(ClangFrontendTimer);
Token Tok;
// Start parsing the specified input file.
PP.EnterMainSourceFile();
do {
PP.Lex(Tok);
} while (Tok.isNot(tok::eof));
ClearSourceMgr = true;
break;
}
case RunPreprocessorOnly: { // Just lex as fast as we can, no output.
llvm::TimeRegion Timer(ClangFrontendTimer);
Token Tok;
// Start parsing the specified input file.
PP.EnterMainSourceFile();
do {
PP.Lex(Tok);
} while (Tok.isNot(tok::eof));
ClearSourceMgr = true;
break;
}
}
}
if (FixItRewrite)