зеркало из https://github.com/microsoft/clang-1.git
remove global variables for output stream.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54861 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
Родитель
ffdbefd441
Коммит
e96de3e913
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@ -27,48 +27,6 @@
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#include <cstdio>
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using namespace clang;
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static std::string OutputFilename;
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static llvm::raw_ostream *OutStream;
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/// InitOutputBuffer - Initialize our output buffer.
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///
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static void InitOutputBuffer(const std::string& Output) {
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if (!Output.size() || Output == "-") {
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OutputFilename = "<stdout>";
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OutStream = new llvm::raw_stdout_ostream();
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} else {
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OutputFilename = Output;
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std::string Err;
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OutStream = new llvm::raw_fd_ostream(Output.c_str(), Err);
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if (!Err.empty()) {
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delete OutStream;
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fprintf(stderr, "%s\n", Err.c_str());
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exit(1);
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}
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}
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OutStream->SetBufferSize(64*1024);
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}
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/// CleanupOutputBuffer - Finish up output.
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///
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static void CleanupOutputBuffer(bool ErrorOccurred) {
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delete OutStream;
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// If an error occurred, remove the output file.
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if (ErrorOccurred && !OutputFilename.empty())
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llvm::sys::Path(OutputFilename).eraseFromDisk();
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}
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static inline void OutputChar(char c) {
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*OutStream << c;
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}
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static inline void OutputString(const char *Ptr, unsigned Size) {
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OutStream->write(Ptr, Size);
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}
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//===----------------------------------------------------------------------===//
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// Preprocessed token printer
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//===----------------------------------------------------------------------===//
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@ -85,12 +43,16 @@ EnableMacroCommentOutput("CC",
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namespace {
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class PrintPPOutputPPCallbacks : public PPCallbacks {
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Preprocessor &PP;
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public:
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llvm::raw_ostream &OS;
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private:
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unsigned CurLine;
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bool EmittedTokensOnThisLine;
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DirectoryLookup::DirType FileType;
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llvm::SmallString<512> CurFilename;
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public:
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PrintPPOutputPPCallbacks(Preprocessor &pp) : PP(pp) {
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PrintPPOutputPPCallbacks(Preprocessor &pp, llvm::raw_ostream &os)
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: PP(pp), OS(os) {
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CurLine = 0;
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CurFilename += "<uninit>";
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EmittedTokensOnThisLine = false;
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@ -140,7 +102,7 @@ bool PrintPPOutputPPCallbacks::MoveToLine(SourceLocation Loc) {
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if (!EmittedTokensOnThisLine)
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return true;
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OutputChar('\n');
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OS << '\n';
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EmittedTokensOnThisLine = false;
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return true;
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}
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@ -151,37 +113,36 @@ bool PrintPPOutputPPCallbacks::MoveToLine(SourceLocation Loc) {
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// otherwise print a #line directive.
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if (LineNo-CurLine < 8) {
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if (LineNo-CurLine == 1)
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OutputChar('\n');
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OS << '\n';
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else if (LineNo == CurLine)
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return false; // Phys line moved, but logical line didn't.
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else {
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const char *NewLines = "\n\n\n\n\n\n\n\n";
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OutputString(NewLines, LineNo-CurLine);
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OS.write(NewLines, LineNo-CurLine);
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}
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CurLine = LineNo;
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} else {
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if (EmittedTokensOnThisLine) {
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OutputChar('\n');
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OS << '\n';
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EmittedTokensOnThisLine = false;
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}
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CurLine = LineNo;
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OutputChar('#');
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OutputChar(' ');
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OS << '#' << ' ';
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char NumberBuffer[20];
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const char *NumStr = UToStr(LineNo, NumberBuffer+20);
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OutputString(NumStr, (NumberBuffer+20)-NumStr-1);
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OutputChar(' ');
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OutputChar('"');
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OutputString(&CurFilename[0], CurFilename.size());
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OutputChar('"');
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OS.write(NumStr, (NumberBuffer+20)-NumStr-1);
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OS << ' ';
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OS << '"';
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OS.write(&CurFilename[0], CurFilename.size());
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OS << '"';
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if (FileType == DirectoryLookup::SystemHeaderDir)
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OutputString(" 3", 2);
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OS.write(" 3", 2);
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else if (FileType == DirectoryLookup::ExternCSystemHeaderDir)
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OutputString(" 3 4", 4);
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OutputChar('\n');
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OS.write(" 3 4", 4);
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OS << '\n';
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}
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return true;
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}
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@ -217,38 +178,36 @@ void PrintPPOutputPPCallbacks::FileChanged(SourceLocation Loc,
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FileType = FileType;
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if (EmittedTokensOnThisLine) {
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OutputChar('\n');
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OS << '\n';
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EmittedTokensOnThisLine = false;
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}
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OutputChar('#');
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OutputChar(' ');
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OS << '#' << ' ';
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char NumberBuffer[20];
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const char *NumStr = UToStr(CurLine, NumberBuffer+20);
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OutputString(NumStr, (NumberBuffer+20)-NumStr-1);
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OutputChar(' ');
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OutputChar('"');
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OutputString(&CurFilename[0], CurFilename.size());
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OutputChar('"');
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OS.write(NumStr, (NumberBuffer+20)-NumStr-1);
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OS << ' ' << '"';
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OS.write(&CurFilename[0], CurFilename.size());
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OS << '"';
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switch (Reason) {
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case PPCallbacks::EnterFile:
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OutputString(" 1", 2);
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OS.write(" 1", 2);
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break;
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case PPCallbacks::ExitFile:
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OutputString(" 2", 2);
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OS.write(" 2", 2);
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break;
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case PPCallbacks::SystemHeaderPragma: break;
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case PPCallbacks::RenameFile: break;
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}
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if (FileType == DirectoryLookup::SystemHeaderDir)
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OutputString(" 3", 2);
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OS.write(" 3", 2);
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else if (FileType == DirectoryLookup::ExternCSystemHeaderDir)
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OutputString(" 3 4", 4);
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OS.write(" 3 4", 4);
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OutputChar('\n');
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OS << '\n';
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}
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/// HandleIdent - Handle #ident directives when read by the preprocessor.
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@ -256,8 +215,8 @@ void PrintPPOutputPPCallbacks::FileChanged(SourceLocation Loc,
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void PrintPPOutputPPCallbacks::Ident(SourceLocation Loc, const std::string &S) {
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MoveToLine(Loc);
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OutputString("#ident ", strlen("#ident "));
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OutputString(&S[0], S.size());
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OS.write("#ident ", strlen("#ident "));
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OS.write(&S[0], S.size());
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EmittedTokensOnThisLine = true;
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}
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@ -284,11 +243,11 @@ bool PrintPPOutputPPCallbacks::HandleFirstTokOnLine(Token &Tok) {
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// is not handled as a #define next time through the preprocessor if in
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// -fpreprocessed mode.
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if (ColNo <= 1 && Tok.is(tok::hash))
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OutputChar(' ');
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OS << ' ';
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// Otherwise, indent the appropriate number of spaces.
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for (; ColNo > 1; --ColNo)
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OutputChar(' ');
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OS << ' ';
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return true;
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}
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@ -304,17 +263,17 @@ struct UnknownPragmaHandler : public PragmaHandler {
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// Figure out what line we went to and insert the appropriate number of
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// newline characters.
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Callbacks->MoveToLine(PragmaTok.getLocation());
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OutputString(Prefix, strlen(Prefix));
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Callbacks->OS.write(Prefix, strlen(Prefix));
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// Read and print all of the pragma tokens.
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while (PragmaTok.isNot(tok::eom)) {
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if (PragmaTok.hasLeadingSpace())
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OutputChar(' ');
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Callbacks->OS << ' ';
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std::string TokSpell = PP.getSpelling(PragmaTok);
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OutputString(&TokSpell[0], TokSpell.size());
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Callbacks->OS.write(&TokSpell[0], TokSpell.size());
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PP.LexUnexpandedToken(PragmaTok);
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}
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OutputChar('\n');
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Callbacks->OS << '\n';
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}
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};
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} // end anonymous namespace
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@ -536,13 +495,31 @@ void clang::DoPrintPreprocessedInput(Preprocessor &PP,
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// Inform the preprocessor whether we want it to retain comments or not, due
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// to -C or -CC.
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PP.SetCommentRetentionState(EnableCommentOutput, EnableMacroCommentOutput);
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InitOutputBuffer(OutFile);
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InitAvoidConcatTokenInfo();
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// Open the output buffer.
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static llvm::raw_ostream *OutStream;
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if (!OutFile.size() || OutFile == "-") {
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OutStream = new llvm::raw_stdout_ostream();
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} else {
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std::string Err;
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OutStream = new llvm::raw_fd_ostream(OutFile.c_str(), Err);
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if (!Err.empty()) {
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delete OutStream;
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fprintf(stderr, "%s\n", Err.c_str());
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exit(1);
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}
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}
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OutStream->SetBufferSize(64*1024);
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llvm::raw_ostream &OS = *OutStream;
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Token Tok, PrevTok;
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char Buffer[256];
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PrintPPOutputPPCallbacks *Callbacks = new PrintPPOutputPPCallbacks(PP);
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PrintPPOutputPPCallbacks *Callbacks = new PrintPPOutputPPCallbacks(PP, OS);
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PP.setPPCallbacks(Callbacks);
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PP.AddPragmaHandler(0, new UnknownPragmaHandler("#pragma", Callbacks));
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@ -572,20 +549,20 @@ void clang::DoPrintPreprocessedInput(Preprocessor &PP,
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(Callbacks->hasEmittedTokensOnThisLine() &&
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// Don't print "-" next to "-", it would form "--".
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Callbacks->AvoidConcat(PrevTok, Tok))) {
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OutputChar(' ');
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OS << ' ';
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}
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if (IdentifierInfo *II = Tok.getIdentifierInfo()) {
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const char *Str = II->getName();
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unsigned Len = Tok.needsCleaning() ? strlen(Str) : Tok.getLength();
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OutputString(Str, Len);
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OS.write(Str, Len);
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} else if (Tok.getLength() < 256) {
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const char *TokPtr = Buffer;
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unsigned Len = PP.getSpelling(Tok, TokPtr);
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OutputString(TokPtr, Len);
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OS.write(TokPtr, Len);
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} else {
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std::string S = PP.getSpelling(Tok);
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OutputString(&S[0], S.size());
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OS.write(&S[0], S.size());
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}
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Callbacks->SetEmittedTokensOnThisLine();
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@ -594,8 +571,13 @@ void clang::DoPrintPreprocessedInput(Preprocessor &PP,
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PrevTok = Tok;
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PP.Lex(Tok);
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}
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OutputChar('\n');
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OS << '\n';
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CleanupOutputBuffer(PP.getDiagnostics().hasErrorOccurred());
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// Flush and free the ostream.
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delete &OS;
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// If an error occurred, remove the output file.
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if (PP.getDiagnostics().hasErrorOccurred() && !OutFile.empty())
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llvm::sys::Path(OutFile).eraseFromDisk();
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}
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