2006-07-05 03:04:05 +08:00
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//===--- PrintPreprocessedOutput.cpp - Implement the -E mode --------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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2007-12-30 03:59:25 +08:00
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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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2006-07-05 03:04:05 +08:00
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//
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//===----------------------------------------------------------------------===//
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//
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// This code simply runs the preprocessor on the input file and prints out the
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// result. This is the traditional behavior of the -E option.
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//
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//===----------------------------------------------------------------------===//
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2009-05-19 12:14:29 +08:00
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#include "clang/Frontend/Utils.h"
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2009-11-11 18:07:22 +08:00
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Frontend/PreprocessorOutputOptions.h"
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2009-02-06 14:45:26 +08:00
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#include "clang/Lex/MacroInfo.h"
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2006-11-21 12:09:30 +08:00
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#include "clang/Lex/PPCallbacks.h"
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2006-07-05 03:04:05 +08:00
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#include "clang/Lex/Pragma.h"
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2009-11-11 18:07:22 +08:00
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#include "clang/Lex/Preprocessor.h"
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2009-02-13 08:46:04 +08:00
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#include "clang/Lex/TokenConcatenation.h"
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2007-07-24 14:57:14 +08:00
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#include "llvm/ADT/SmallString.h"
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2010-01-20 01:42:20 +08:00
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#include "llvm/ADT/STLExtras.h"
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2006-07-05 06:19:33 +08:00
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#include "llvm/Config/config.h"
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2008-08-17 09:47:12 +08:00
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#include "llvm/Support/raw_ostream.h"
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2006-07-05 03:24:06 +08:00
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#include <cstdio>
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2006-07-05 03:04:05 +08:00
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using namespace clang;
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2009-04-12 09:56:53 +08:00
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/// PrintMacroDefinition - Print a macro definition in a form that will be
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/// properly accepted back as a definition.
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static void PrintMacroDefinition(const IdentifierInfo &II, const MacroInfo &MI,
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Preprocessor &PP, llvm::raw_ostream &OS) {
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OS << "#define " << II.getName();
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2009-09-09 23:08:12 +08:00
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2009-04-12 09:56:53 +08:00
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if (MI.isFunctionLike()) {
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OS << '(';
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2009-12-09 10:08:14 +08:00
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if (!MI.arg_empty()) {
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2009-04-12 09:56:53 +08:00
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MacroInfo::arg_iterator AI = MI.arg_begin(), E = MI.arg_end();
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2009-12-09 10:08:14 +08:00
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for (; AI+1 != E; ++AI) {
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OS << (*AI)->getName();
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2009-04-12 09:56:53 +08:00
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OS << ',';
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2009-12-07 09:58:34 +08:00
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}
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2009-12-09 10:08:14 +08:00
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// Last argument.
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if ((*AI)->getName() == "__VA_ARGS__")
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OS << "...";
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else
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OS << (*AI)->getName();
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2009-04-12 09:56:53 +08:00
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}
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2009-12-07 09:58:34 +08:00
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if (MI.isGNUVarargs())
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OS << "..."; // #define foo(x...)
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2009-04-12 09:56:53 +08:00
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OS << ')';
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}
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2009-09-09 23:08:12 +08:00
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2009-04-12 09:56:53 +08:00
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// GCC always emits a space, even if the macro body is empty. However, do not
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// want to emit two spaces if the first token has a leading space.
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if (MI.tokens_empty() || !MI.tokens_begin()->hasLeadingSpace())
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OS << ' ';
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2009-09-09 23:08:12 +08:00
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2009-04-12 09:56:53 +08:00
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llvm::SmallVector<char, 128> SpellingBuffer;
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for (MacroInfo::tokens_iterator I = MI.tokens_begin(), E = MI.tokens_end();
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I != E; ++I) {
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if (I->hasLeadingSpace())
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OS << ' ';
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2009-09-09 23:08:12 +08:00
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2009-04-12 09:56:53 +08:00
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// Make sure we have enough space in the spelling buffer.
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2009-11-03 14:18:05 +08:00
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if (I->getLength() > SpellingBuffer.size())
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2009-04-12 09:56:53 +08:00
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SpellingBuffer.resize(I->getLength());
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2009-05-21 17:52:38 +08:00
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const char *Buffer = SpellingBuffer.data();
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2009-04-12 09:56:53 +08:00
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unsigned SpellingLen = PP.getSpelling(*I, Buffer);
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OS.write(Buffer, SpellingLen);
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}
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}
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2006-07-05 06:19:33 +08:00
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//===----------------------------------------------------------------------===//
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// Preprocessed token printer
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//===----------------------------------------------------------------------===//
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2006-11-21 13:02:33 +08:00
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namespace {
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class PrintPPOutputPPCallbacks : public PPCallbacks {
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Preprocessor &PP;
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2009-02-13 08:46:04 +08:00
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TokenConcatenation ConcatInfo;
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2008-08-17 11:12:02 +08:00
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public:
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llvm::raw_ostream &OS;
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private:
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2006-11-21 13:02:33 +08:00
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unsigned CurLine;
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bool EmittedTokensOnThisLine;
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2009-06-02 15:55:39 +08:00
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bool EmittedMacroOnThisLine;
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2008-10-27 09:19:25 +08:00
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SrcMgr::CharacteristicKind FileType;
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2007-07-24 14:57:14 +08:00
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llvm::SmallString<512> CurFilename;
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2008-09-05 11:22:57 +08:00
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bool Initialized;
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2009-05-19 11:06:47 +08:00
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bool DisableLineMarkers;
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bool DumpDefines;
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2009-12-07 09:42:56 +08:00
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bool UseLineDirective;
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2006-11-21 13:02:33 +08:00
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public:
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2009-05-19 11:06:47 +08:00
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PrintPPOutputPPCallbacks(Preprocessor &pp, llvm::raw_ostream &os,
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bool lineMarkers, bool defines)
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: PP(pp), ConcatInfo(PP), OS(os), DisableLineMarkers(lineMarkers),
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DumpDefines(defines) {
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2006-11-21 13:02:33 +08:00
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CurLine = 0;
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2007-07-24 14:57:14 +08:00
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CurFilename += "<uninit>";
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2006-11-21 13:02:33 +08:00
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EmittedTokensOnThisLine = false;
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2009-06-02 15:55:39 +08:00
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EmittedMacroOnThisLine = false;
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2008-09-27 05:18:42 +08:00
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FileType = SrcMgr::C_User;
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2008-09-05 11:22:57 +08:00
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Initialized = false;
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2009-12-07 09:42:56 +08:00
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// If we're in microsoft mode, use normal #line instead of line markers.
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UseLineDirective = PP.getLangOptions().Microsoft;
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2006-11-21 13:02:33 +08:00
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}
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2009-09-09 23:08:12 +08:00
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2006-11-21 13:02:33 +08:00
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void SetEmittedTokensOnThisLine() { EmittedTokensOnThisLine = true; }
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2007-07-23 14:09:34 +08:00
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bool hasEmittedTokensOnThisLine() const { return EmittedTokensOnThisLine; }
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2009-09-09 23:08:12 +08:00
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2006-11-21 13:02:33 +08:00
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virtual void FileChanged(SourceLocation Loc, FileChangeReason Reason,
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2008-10-27 09:19:25 +08:00
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SrcMgr::CharacteristicKind FileType);
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2006-11-21 13:02:33 +08:00
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virtual void Ident(SourceLocation Loc, const std::string &str);
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2009-09-09 23:08:12 +08:00
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virtual void PragmaComment(SourceLocation Loc, const IdentifierInfo *Kind,
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2009-01-17 03:25:54 +08:00
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const std::string &Str);
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2006-11-21 13:02:33 +08:00
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2007-12-10 05:11:08 +08:00
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bool HandleFirstTokOnLine(Token &Tok);
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bool MoveToLine(SourceLocation Loc);
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2009-02-13 08:46:04 +08:00
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bool AvoidConcat(const Token &PrevTok, const Token &Tok) {
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return ConcatInfo.AvoidConcat(PrevTok, Tok);
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}
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2008-09-05 11:22:57 +08:00
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void WriteLineInfo(unsigned LineNo, const char *Extra=0, unsigned ExtraLen=0);
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2009-09-09 23:08:12 +08:00
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2009-06-15 09:25:23 +08:00
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void HandleNewlinesInToken(const char *TokStr, unsigned Len);
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2009-09-09 23:08:12 +08:00
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2009-04-12 09:56:53 +08:00
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/// MacroDefined - This hook is called whenever a macro definition is seen.
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void MacroDefined(const IdentifierInfo *II, const MacroInfo *MI);
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2009-09-09 23:08:12 +08:00
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2006-11-21 13:02:33 +08:00
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};
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2008-04-08 12:16:20 +08:00
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} // end anonymous namespace
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2006-07-05 03:04:05 +08:00
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2008-09-05 11:22:57 +08:00
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void PrintPPOutputPPCallbacks::WriteLineInfo(unsigned LineNo,
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const char *Extra,
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unsigned ExtraLen) {
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2009-06-02 15:55:39 +08:00
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if (EmittedTokensOnThisLine || EmittedMacroOnThisLine) {
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2008-09-05 11:22:57 +08:00
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OS << '\n';
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EmittedTokensOnThisLine = false;
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2009-06-02 15:55:39 +08:00
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EmittedMacroOnThisLine = false;
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2008-09-05 11:22:57 +08:00
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}
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2009-12-07 09:42:56 +08:00
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// Emit #line directives or GNU line markers depending on what mode we're in.
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if (UseLineDirective) {
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OS << "#line" << ' ' << LineNo << ' ' << '"';
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OS.write(&CurFilename[0], CurFilename.size());
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OS << '"';
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} else {
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OS << '#' << ' ' << LineNo << ' ' << '"';
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OS.write(&CurFilename[0], CurFilename.size());
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OS << '"';
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2009-12-06 09:02:14 +08:00
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if (ExtraLen)
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OS.write(Extra, ExtraLen);
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2008-09-05 11:22:57 +08:00
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2009-12-06 09:02:14 +08:00
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if (FileType == SrcMgr::C_System)
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OS.write(" 3", 2);
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else if (FileType == SrcMgr::C_ExternCSystem)
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OS.write(" 3 4", 4);
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}
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2008-09-05 11:22:57 +08:00
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OS << '\n';
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}
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2006-07-05 05:28:37 +08:00
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/// MoveToLine - Move the output to the source line specified by the location
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/// object. We can do this by emitting some number of \n's, or be emitting a
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2007-12-10 05:11:08 +08:00
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/// #line directive. This returns false if already at the specified line, true
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/// if some newlines were emitted.
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bool PrintPPOutputPPCallbacks::MoveToLine(SourceLocation Loc) {
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2009-01-16 15:36:28 +08:00
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unsigned LineNo = PP.getSourceManager().getInstantiationLineNumber(Loc);
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2008-09-05 11:22:57 +08:00
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2006-07-05 06:19:33 +08:00
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if (DisableLineMarkers) {
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2007-12-10 05:11:08 +08:00
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if (LineNo == CurLine) return false;
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2009-09-09 23:08:12 +08:00
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2007-12-10 05:11:08 +08:00
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CurLine = LineNo;
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2009-09-09 23:08:12 +08:00
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2009-06-02 15:55:39 +08:00
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if (!EmittedTokensOnThisLine && !EmittedMacroOnThisLine)
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2007-12-10 05:11:08 +08:00
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return true;
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2009-09-09 23:08:12 +08:00
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2008-08-17 11:12:02 +08:00
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OS << '\n';
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2007-12-10 05:11:08 +08:00
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EmittedTokensOnThisLine = false;
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2009-06-02 15:55:39 +08:00
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EmittedMacroOnThisLine = false;
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2007-12-10 05:11:08 +08:00
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return true;
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2006-07-05 06:19:33 +08:00
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}
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2008-09-05 11:22:57 +08:00
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2006-07-05 03:04:05 +08:00
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// If this line is "close enough" to the original line, just print newlines,
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// otherwise print a #line directive.
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2008-09-26 09:13:35 +08:00
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if (LineNo-CurLine <= 8) {
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2007-07-23 13:14:05 +08:00
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if (LineNo-CurLine == 1)
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2008-08-17 11:12:02 +08:00
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OS << '\n';
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2007-12-10 05:11:08 +08:00
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else if (LineNo == CurLine)
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2009-01-16 15:36:28 +08:00
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return false; // Spelling line moved, but instantiation line didn't.
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2007-07-23 13:14:05 +08:00
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else {
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const char *NewLines = "\n\n\n\n\n\n\n\n";
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2008-08-17 11:12:02 +08:00
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OS.write(NewLines, LineNo-CurLine);
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2007-07-23 13:14:05 +08:00
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}
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2006-07-05 03:04:05 +08:00
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} else {
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2008-09-05 11:22:57 +08:00
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WriteLineInfo(LineNo, 0, 0);
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2009-09-09 23:08:12 +08:00
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}
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2008-09-05 11:22:57 +08:00
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2009-09-09 23:08:12 +08:00
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CurLine = LineNo;
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2007-12-10 05:11:08 +08:00
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return true;
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2006-07-05 03:04:05 +08:00
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}
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2006-11-21 12:09:30 +08:00
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/// FileChanged - Whenever the preprocessor enters or exits a #include file
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/// it invokes this handler. Update our conception of the current source
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/// position.
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void PrintPPOutputPPCallbacks::FileChanged(SourceLocation Loc,
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FileChangeReason Reason,
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2008-10-27 09:19:25 +08:00
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SrcMgr::CharacteristicKind NewFileType) {
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2006-07-05 03:04:05 +08:00
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// Unless we are exiting a #include, make sure to skip ahead to the line the
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// #include directive was at.
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2006-11-21 13:02:33 +08:00
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SourceManager &SourceMgr = PP.getSourceManager();
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2006-11-21 12:09:30 +08:00
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if (Reason == PPCallbacks::EnterFile) {
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2009-01-31 02:44:17 +08:00
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SourceLocation IncludeLoc = SourceMgr.getPresumedLoc(Loc).getIncludeLoc();
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if (IncludeLoc.isValid())
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MoveToLine(IncludeLoc);
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2006-11-21 12:09:30 +08:00
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} else if (Reason == PPCallbacks::SystemHeaderPragma) {
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2006-07-05 05:19:39 +08:00
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MoveToLine(Loc);
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2009-09-09 23:08:12 +08:00
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2006-07-05 03:04:05 +08:00
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// TODO GCC emits the # directive for this directive on the line AFTER the
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// directive and emits a bunch of spaces that aren't needed. Emulate this
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// strange behavior.
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}
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2009-09-09 23:08:12 +08:00
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2009-01-16 15:36:28 +08:00
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Loc = SourceMgr.getInstantiationLoc(Loc);
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2009-03-28 01:13:49 +08:00
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// FIXME: Should use presumed line #!
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2009-02-04 09:06:56 +08:00
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CurLine = SourceMgr.getInstantiationLineNumber(Loc);
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2008-09-05 11:22:57 +08:00
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2007-12-10 05:11:08 +08:00
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if (DisableLineMarkers) return;
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2007-07-24 14:57:14 +08:00
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CurFilename.clear();
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2009-01-27 15:57:44 +08:00
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CurFilename += SourceMgr.getPresumedLoc(Loc).getFilename();
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2007-07-24 14:57:14 +08:00
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Lexer::Stringify(CurFilename);
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2008-09-05 11:22:57 +08:00
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FileType = NewFileType;
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if (!Initialized) {
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WriteLineInfo(CurLine);
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Initialized = true;
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2006-07-05 03:04:05 +08:00
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}
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2008-09-05 11:22:57 +08:00
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2006-07-05 03:04:05 +08:00
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switch (Reason) {
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2006-11-21 12:09:30 +08:00
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case PPCallbacks::EnterFile:
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2008-09-05 11:22:57 +08:00
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WriteLineInfo(CurLine, " 1", 2);
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2006-07-05 05:19:39 +08:00
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break;
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2006-11-21 12:09:30 +08:00
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case PPCallbacks::ExitFile:
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2008-09-05 11:22:57 +08:00
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WriteLineInfo(CurLine, " 2", 2);
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break;
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2009-09-09 23:08:12 +08:00
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case PPCallbacks::SystemHeaderPragma:
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case PPCallbacks::RenameFile:
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2008-09-05 11:22:57 +08:00
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WriteLineInfo(CurLine);
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2006-07-05 05:19:39 +08:00
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break;
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2006-07-05 03:04:05 +08:00
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}
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}
|
|
|
|
|
2009-01-17 03:25:54 +08:00
|
|
|
/// Ident - Handle #ident directives when read by the preprocessor.
|
2006-07-05 05:28:37 +08:00
|
|
|
///
|
2006-11-21 12:09:30 +08:00
|
|
|
void PrintPPOutputPPCallbacks::Ident(SourceLocation Loc, const std::string &S) {
|
2006-07-05 05:19:39 +08:00
|
|
|
MoveToLine(Loc);
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2008-08-17 11:12:02 +08:00
|
|
|
OS.write("#ident ", strlen("#ident "));
|
|
|
|
OS.write(&S[0], S.size());
|
2006-11-21 13:02:33 +08:00
|
|
|
EmittedTokensOnThisLine = true;
|
2006-07-05 03:04:05 +08:00
|
|
|
}
|
|
|
|
|
2009-04-12 09:56:53 +08:00
|
|
|
/// MacroDefined - This hook is called whenever a macro definition is seen.
|
|
|
|
void PrintPPOutputPPCallbacks::MacroDefined(const IdentifierInfo *II,
|
|
|
|
const MacroInfo *MI) {
|
|
|
|
// Only print out macro definitions in -dD mode.
|
|
|
|
if (!DumpDefines ||
|
|
|
|
// Ignore __FILE__ etc.
|
|
|
|
MI->isBuiltinMacro()) return;
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-04-12 09:56:53 +08:00
|
|
|
MoveToLine(MI->getDefinitionLoc());
|
|
|
|
PrintMacroDefinition(*II, *MI, PP, OS);
|
2009-06-02 15:55:39 +08:00
|
|
|
EmittedMacroOnThisLine = true;
|
2009-04-12 09:56:53 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-01-17 03:25:54 +08:00
|
|
|
void PrintPPOutputPPCallbacks::PragmaComment(SourceLocation Loc,
|
2009-09-09 23:08:12 +08:00
|
|
|
const IdentifierInfo *Kind,
|
2009-01-17 03:25:54 +08:00
|
|
|
const std::string &Str) {
|
|
|
|
MoveToLine(Loc);
|
|
|
|
OS << "#pragma comment(" << Kind->getName();
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-01-17 03:25:54 +08:00
|
|
|
if (!Str.empty()) {
|
|
|
|
OS << ", \"";
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-01-17 03:25:54 +08:00
|
|
|
for (unsigned i = 0, e = Str.size(); i != e; ++i) {
|
|
|
|
unsigned char Char = Str[i];
|
2009-01-17 06:13:37 +08:00
|
|
|
if (isprint(Char) && Char != '\\' && Char != '"')
|
2009-01-17 03:25:54 +08:00
|
|
|
OS << (char)Char;
|
|
|
|
else // Output anything hard as an octal escape.
|
|
|
|
OS << '\\'
|
|
|
|
<< (char)('0'+ ((Char >> 6) & 7))
|
|
|
|
<< (char)('0'+ ((Char >> 3) & 7))
|
|
|
|
<< (char)('0'+ ((Char >> 0) & 7));
|
|
|
|
}
|
|
|
|
OS << '"';
|
|
|
|
}
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-01-17 03:25:54 +08:00
|
|
|
OS << ')';
|
|
|
|
EmittedTokensOnThisLine = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2006-07-05 03:04:05 +08:00
|
|
|
/// HandleFirstTokOnLine - When emitting a preprocessed file in -E mode, this
|
2007-12-10 05:11:08 +08:00
|
|
|
/// is called for the first token on each new line. If this really is the start
|
|
|
|
/// of a new logical line, handle it and return true, otherwise return false.
|
|
|
|
/// This may not be the start of a logical line because the "start of line"
|
2009-01-16 15:36:28 +08:00
|
|
|
/// marker is set for spelling lines, not instantiation ones.
|
2007-12-10 05:11:08 +08:00
|
|
|
bool PrintPPOutputPPCallbacks::HandleFirstTokOnLine(Token &Tok) {
|
2006-07-05 03:04:05 +08:00
|
|
|
// Figure out what line we went to and insert the appropriate number of
|
|
|
|
// newline characters.
|
2007-12-10 05:11:08 +08:00
|
|
|
if (!MoveToLine(Tok.getLocation()))
|
|
|
|
return false;
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2006-07-05 03:04:05 +08:00
|
|
|
// Print out space characters so that the first token on a line is
|
|
|
|
// indented for easy reading.
|
2007-07-21 00:37:10 +08:00
|
|
|
const SourceManager &SourceMgr = PP.getSourceManager();
|
2009-01-16 15:36:28 +08:00
|
|
|
unsigned ColNo = SourceMgr.getInstantiationColumnNumber(Tok.getLocation());
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2006-07-05 03:04:05 +08:00
|
|
|
// This hack prevents stuff like:
|
|
|
|
// #define HASH #
|
|
|
|
// HASH define foo bar
|
|
|
|
// From having the # character end up at column 1, which makes it so it
|
|
|
|
// is not handled as a #define next time through the preprocessor if in
|
|
|
|
// -fpreprocessed mode.
|
2007-10-10 02:03:42 +08:00
|
|
|
if (ColNo <= 1 && Tok.is(tok::hash))
|
2008-08-17 11:12:02 +08:00
|
|
|
OS << ' ';
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2006-07-05 03:04:05 +08:00
|
|
|
// Otherwise, indent the appropriate number of spaces.
|
|
|
|
for (; ColNo > 1; --ColNo)
|
2008-08-17 11:12:02 +08:00
|
|
|
OS << ' ';
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2007-12-10 05:11:08 +08:00
|
|
|
return true;
|
2006-07-05 03:04:05 +08:00
|
|
|
}
|
|
|
|
|
2009-06-15 09:25:23 +08:00
|
|
|
void PrintPPOutputPPCallbacks::HandleNewlinesInToken(const char *TokStr,
|
|
|
|
unsigned Len) {
|
|
|
|
unsigned NumNewlines = 0;
|
|
|
|
for (; Len; --Len, ++TokStr) {
|
|
|
|
if (*TokStr != '\n' &&
|
|
|
|
*TokStr != '\r')
|
|
|
|
continue;
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-06-15 09:25:23 +08:00
|
|
|
++NumNewlines;
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-06-15 09:25:23 +08:00
|
|
|
// If we have \n\r or \r\n, skip both and count as one line.
|
|
|
|
if (Len != 1 &&
|
|
|
|
(TokStr[1] == '\n' || TokStr[1] == '\r') &&
|
|
|
|
TokStr[0] != TokStr[1])
|
|
|
|
++TokStr, --Len;
|
|
|
|
}
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-06-15 09:25:23 +08:00
|
|
|
if (NumNewlines == 0) return;
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-06-15 12:08:28 +08:00
|
|
|
CurLine += NumNewlines;
|
2009-06-15 09:25:23 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2006-07-05 03:04:44 +08:00
|
|
|
namespace {
|
2006-07-05 03:04:05 +08:00
|
|
|
struct UnknownPragmaHandler : public PragmaHandler {
|
|
|
|
const char *Prefix;
|
2006-11-21 13:02:33 +08:00
|
|
|
PrintPPOutputPPCallbacks *Callbacks;
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2006-11-21 13:02:33 +08:00
|
|
|
UnknownPragmaHandler(const char *prefix, PrintPPOutputPPCallbacks *callbacks)
|
|
|
|
: PragmaHandler(0), Prefix(prefix), Callbacks(callbacks) {}
|
2007-07-21 00:59:19 +08:00
|
|
|
virtual void HandlePragma(Preprocessor &PP, Token &PragmaTok) {
|
2006-07-05 03:04:05 +08:00
|
|
|
// Figure out what line we went to and insert the appropriate number of
|
|
|
|
// newline characters.
|
2006-11-21 13:02:33 +08:00
|
|
|
Callbacks->MoveToLine(PragmaTok.getLocation());
|
2008-08-17 11:12:02 +08:00
|
|
|
Callbacks->OS.write(Prefix, strlen(Prefix));
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2006-07-05 03:04:05 +08:00
|
|
|
// Read and print all of the pragma tokens.
|
2007-10-10 02:03:42 +08:00
|
|
|
while (PragmaTok.isNot(tok::eom)) {
|
2006-07-05 03:04:05 +08:00
|
|
|
if (PragmaTok.hasLeadingSpace())
|
2008-08-17 11:12:02 +08:00
|
|
|
Callbacks->OS << ' ';
|
2006-07-05 06:19:33 +08:00
|
|
|
std::string TokSpell = PP.getSpelling(PragmaTok);
|
2008-08-17 11:12:02 +08:00
|
|
|
Callbacks->OS.write(&TokSpell[0], TokSpell.size());
|
2006-07-05 03:04:05 +08:00
|
|
|
PP.LexUnexpandedToken(PragmaTok);
|
|
|
|
}
|
2008-08-17 11:12:02 +08:00
|
|
|
Callbacks->OS << '\n';
|
2006-07-05 03:04:05 +08:00
|
|
|
}
|
|
|
|
};
|
2006-07-05 03:04:44 +08:00
|
|
|
} // end anonymous namespace
|
2006-07-05 03:04:05 +08:00
|
|
|
|
2007-07-23 14:09:34 +08:00
|
|
|
|
2009-02-06 13:56:11 +08:00
|
|
|
static void PrintPreprocessedTokens(Preprocessor &PP, Token &Tok,
|
|
|
|
PrintPPOutputPPCallbacks *Callbacks,
|
|
|
|
llvm::raw_ostream &OS) {
|
|
|
|
char Buffer[256];
|
|
|
|
Token PrevTok;
|
|
|
|
while (1) {
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-02-06 13:56:11 +08:00
|
|
|
// If this token is at the start of a line, emit newlines if needed.
|
|
|
|
if (Tok.isAtStartOfLine() && Callbacks->HandleFirstTokOnLine(Tok)) {
|
|
|
|
// done.
|
2009-09-09 23:08:12 +08:00
|
|
|
} else if (Tok.hasLeadingSpace() ||
|
2009-02-06 13:56:11 +08:00
|
|
|
// If we haven't emitted a token on this line yet, PrevTok isn't
|
|
|
|
// useful to look at and no concatenation could happen anyway.
|
|
|
|
(Callbacks->hasEmittedTokensOnThisLine() &&
|
|
|
|
// Don't print "-" next to "-", it would form "--".
|
|
|
|
Callbacks->AvoidConcat(PrevTok, Tok))) {
|
|
|
|
OS << ' ';
|
|
|
|
}
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-02-06 13:56:11 +08:00
|
|
|
if (IdentifierInfo *II = Tok.getIdentifierInfo()) {
|
2009-10-19 05:17:35 +08:00
|
|
|
OS << II->getName();
|
2009-02-06 13:56:11 +08:00
|
|
|
} else if (Tok.isLiteral() && !Tok.needsCleaning() &&
|
|
|
|
Tok.getLiteralData()) {
|
|
|
|
OS.write(Tok.getLiteralData(), Tok.getLength());
|
|
|
|
} else if (Tok.getLength() < 256) {
|
|
|
|
const char *TokPtr = Buffer;
|
|
|
|
unsigned Len = PP.getSpelling(Tok, TokPtr);
|
|
|
|
OS.write(TokPtr, Len);
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-06-15 09:25:23 +08:00
|
|
|
// Tokens that can contain embedded newlines need to adjust our current
|
2009-09-09 23:08:12 +08:00
|
|
|
// line number.
|
2009-06-15 09:25:23 +08:00
|
|
|
if (Tok.getKind() == tok::comment)
|
|
|
|
Callbacks->HandleNewlinesInToken(TokPtr, Len);
|
2009-02-06 13:56:11 +08:00
|
|
|
} else {
|
|
|
|
std::string S = PP.getSpelling(Tok);
|
|
|
|
OS.write(&S[0], S.size());
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-06-15 09:25:23 +08:00
|
|
|
// Tokens that can contain embedded newlines need to adjust our current
|
2009-09-09 23:08:12 +08:00
|
|
|
// line number.
|
2009-06-15 09:25:23 +08:00
|
|
|
if (Tok.getKind() == tok::comment)
|
|
|
|
Callbacks->HandleNewlinesInToken(&S[0], S.size());
|
2009-02-06 13:56:11 +08:00
|
|
|
}
|
|
|
|
Callbacks->SetEmittedTokensOnThisLine();
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-02-06 13:56:11 +08:00
|
|
|
if (Tok.is(tok::eof)) break;
|
2009-09-09 23:08:12 +08:00
|
|
|
|
2009-02-06 13:56:11 +08:00
|
|
|
PrevTok = Tok;
|
|
|
|
PP.Lex(Tok);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-01-20 01:42:20 +08:00
|
|
|
typedef std::pair<IdentifierInfo*, MacroInfo*> id_macro_pair;
|
|
|
|
static int MacroIDCompare(const void* a, const void* b) {
|
|
|
|
const id_macro_pair *LHS = static_cast<const id_macro_pair*>(a);
|
|
|
|
const id_macro_pair *RHS = static_cast<const id_macro_pair*>(b);
|
|
|
|
return LHS->first->getName().compare(RHS->first->getName());
|
2009-02-11 06:28:19 +08:00
|
|
|
}
|
2009-02-06 13:56:11 +08:00
|
|
|
|
2009-11-11 18:07:22 +08:00
|
|
|
static void DoPrintMacros(Preprocessor &PP, llvm::raw_ostream *OS) {
|
2009-05-19 09:32:34 +08:00
|
|
|
// -dM mode just scans and ignores all tokens in the files, then dumps out
|
|
|
|
// the macro table at the end.
|
|
|
|
PP.EnterMainSourceFile();
|
|
|
|
|
|
|
|
Token Tok;
|
|
|
|
do PP.Lex(Tok);
|
|
|
|
while (Tok.isNot(tok::eof));
|
|
|
|
|
2010-01-20 01:42:20 +08:00
|
|
|
llvm::SmallVector<id_macro_pair, 128>
|
|
|
|
MacrosByID(PP.macro_begin(), PP.macro_end());
|
|
|
|
llvm::array_pod_sort(MacrosByID.begin(), MacrosByID.end(), MacroIDCompare);
|
2009-05-19 09:32:34 +08:00
|
|
|
|
|
|
|
for (unsigned i = 0, e = MacrosByID.size(); i != e; ++i) {
|
|
|
|
MacroInfo &MI = *MacrosByID[i].second;
|
2009-09-09 23:08:12 +08:00
|
|
|
// Ignore computed macros like __LINE__ and friends.
|
2009-05-19 09:32:34 +08:00
|
|
|
if (MI.isBuiltinMacro()) continue;
|
|
|
|
|
|
|
|
PrintMacroDefinition(*MacrosByID[i].first, MI, PP, *OS);
|
2010-01-20 01:42:20 +08:00
|
|
|
*OS << '\n';
|
2009-05-19 09:32:34 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-07-05 03:04:05 +08:00
|
|
|
/// DoPrintPreprocessedInput - This implements -E mode.
|
2006-07-05 05:28:37 +08:00
|
|
|
///
|
2009-05-19 11:06:47 +08:00
|
|
|
void clang::DoPrintPreprocessedInput(Preprocessor &PP, llvm::raw_ostream *OS,
|
2009-11-11 18:07:44 +08:00
|
|
|
const PreprocessorOutputOptions &Opts) {
|
2009-11-11 18:07:22 +08:00
|
|
|
// Show macros with no output is handled specially.
|
|
|
|
if (!Opts.ShowCPP) {
|
|
|
|
assert(Opts.ShowMacros && "Not yet implemented!");
|
|
|
|
DoPrintMacros(PP, OS);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2006-11-21 14:17:10 +08:00
|
|
|
// Inform the preprocessor whether we want it to retain comments or not, due
|
|
|
|
// to -C or -CC.
|
2009-11-11 18:07:22 +08:00
|
|
|
PP.SetCommentRetentionState(Opts.ShowComments, Opts.ShowMacroComments);
|
2009-05-19 09:02:07 +08:00
|
|
|
|
|
|
|
OS->SetBufferSize(64*1024);
|
2009-04-12 09:56:53 +08:00
|
|
|
|
2009-05-19 11:06:47 +08:00
|
|
|
PrintPPOutputPPCallbacks *Callbacks =
|
2009-11-11 18:07:22 +08:00
|
|
|
new PrintPPOutputPPCallbacks(PP, *OS, !Opts.ShowLineMarkers,
|
|
|
|
Opts.ShowMacros);
|
2009-05-19 09:32:34 +08:00
|
|
|
PP.AddPragmaHandler(0, new UnknownPragmaHandler("#pragma", Callbacks));
|
|
|
|
PP.AddPragmaHandler("GCC", new UnknownPragmaHandler("#pragma GCC",
|
|
|
|
Callbacks));
|
|
|
|
|
|
|
|
PP.setPPCallbacks(Callbacks);
|
2009-05-19 09:02:07 +08:00
|
|
|
|
2009-05-19 09:32:34 +08:00
|
|
|
// After we have configured the preprocessor, enter the main file.
|
|
|
|
PP.EnterMainSourceFile();
|
|
|
|
|
|
|
|
// Consume all of the tokens that come from the predefines buffer. Those
|
|
|
|
// should not be emitted into the output and are guaranteed to be at the
|
|
|
|
// start.
|
|
|
|
const SourceManager &SourceMgr = PP.getSourceManager();
|
|
|
|
Token Tok;
|
|
|
|
do PP.Lex(Tok);
|
|
|
|
while (Tok.isNot(tok::eof) && Tok.getLocation().isFileID() &&
|
|
|
|
!strcmp(SourceMgr.getPresumedLoc(Tok.getLocation()).getFilename(),
|
|
|
|
"<built-in>"));
|
|
|
|
|
|
|
|
// Read all the preprocessed tokens, printing them out to the stream.
|
|
|
|
PrintPreprocessedTokens(PP, Tok, Callbacks, *OS);
|
|
|
|
*OS << '\n';
|
2006-07-05 03:04:05 +08:00
|
|
|
}
|
|
|
|
|