Move clang-cc.h to lib/Frontend/Utils.h, and move the associated .cpp

files to lib/Frontend.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72099 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 468 deletions

diff --git a/tools/clang-cc/PrintPreprocessedOutput.cpp b/tools/clang-cc/PrintPreprocessedOutput.cpp
deleted file mode 100644
index 429b829649..0000000000
--- a/tools/clang-cc/PrintPreprocessedOutput.cpp
+++ /dev/null
@@ -1,468 +0,0 @@
-//===--- PrintPreprocessedOutput.cpp - Implement the -E mode --------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This code simply runs the preprocessor on the input file and prints out the
-// result.  This is the traditional behavior of the -E option.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Basic/SourceManager.h"
-#include "clang-cc.h"
-#include "clang/Lex/MacroInfo.h"
-#include "clang/Lex/PPCallbacks.h"
-#include "clang/Lex/Preprocessor.h"
-#include "clang/Lex/Pragma.h"
-#include "clang/Lex/TokenConcatenation.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Basic/Diagnostic.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/System/Path.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Config/config.h"
-#include "llvm/Support/raw_ostream.h"
-#include <cstdio>
-using namespace clang;
-
-/// PrintMacroDefinition - Print a macro definition in a form that will be
-/// properly accepted back as a definition.
-static void PrintMacroDefinition(const IdentifierInfo &II, const MacroInfo &MI,
-                                 Preprocessor &PP, llvm::raw_ostream &OS) {
-  OS << "#define " << II.getName();
-  
-  if (MI.isFunctionLike()) {
-    OS << '(';
-    if (MI.arg_empty())
-      ;
-    else if (MI.getNumArgs() == 1) 
-      OS << (*MI.arg_begin())->getName();
-    else {
-      MacroInfo::arg_iterator AI = MI.arg_begin(), E = MI.arg_end();
-      OS << (*AI++)->getName();
-      while (AI != E)
-        OS << ',' << (*AI++)->getName();
-    }
-    
-    if (MI.isVariadic()) {
-      if (!MI.arg_empty())
-        OS << ',';
-      OS << "...";
-    }
-    OS << ')';
-  }
-  
-  // GCC always emits a space, even if the macro body is empty.  However, do not
-  // want to emit two spaces if the first token has a leading space.
-  if (MI.tokens_empty() || !MI.tokens_begin()->hasLeadingSpace())
-    OS << ' ';
-  
-  llvm::SmallVector<char, 128> SpellingBuffer;
-  for (MacroInfo::tokens_iterator I = MI.tokens_begin(), E = MI.tokens_end();
-       I != E; ++I) {
-    if (I->hasLeadingSpace())
-      OS << ' ';
-    
-    // Make sure we have enough space in the spelling buffer.
-    if (I->getLength() < SpellingBuffer.size())
-      SpellingBuffer.resize(I->getLength());
-    const char *Buffer = &SpellingBuffer[0];
-    unsigned SpellingLen = PP.getSpelling(*I, Buffer);
-    OS.write(Buffer, SpellingLen);
-  }
-}
-
-//===----------------------------------------------------------------------===//
-// Preprocessed token printer
-//===----------------------------------------------------------------------===//
-
-namespace {
-class PrintPPOutputPPCallbacks : public PPCallbacks {
-  Preprocessor &PP;
-  TokenConcatenation ConcatInfo;
-public:
-  llvm::raw_ostream &OS;
-private:
-  unsigned CurLine;
-  bool EmittedTokensOnThisLine;
-  SrcMgr::CharacteristicKind FileType;
-  llvm::SmallString<512> CurFilename;
-  bool Initialized;
-  bool DisableLineMarkers;
-  bool DumpDefines;
-public:
-  PrintPPOutputPPCallbacks(Preprocessor &pp, llvm::raw_ostream &os,
-                           bool lineMarkers, bool defines)
-     : PP(pp), ConcatInfo(PP), OS(os), DisableLineMarkers(lineMarkers),
-       DumpDefines(defines) {
-    CurLine = 0;
-    CurFilename += "<uninit>";
-    EmittedTokensOnThisLine = false;
-    FileType = SrcMgr::C_User;
-    Initialized = false;
-  }
-  
-  void SetEmittedTokensOnThisLine() { EmittedTokensOnThisLine = true; }
-  bool hasEmittedTokensOnThisLine() const { return EmittedTokensOnThisLine; }
-  
-  virtual void FileChanged(SourceLocation Loc, FileChangeReason Reason,
-                           SrcMgr::CharacteristicKind FileType);
-  virtual void Ident(SourceLocation Loc, const std::string &str);
-  virtual void PragmaComment(SourceLocation Loc, const IdentifierInfo *Kind, 
-                             const std::string &Str);
-
-
-  bool HandleFirstTokOnLine(Token &Tok);
-  bool MoveToLine(SourceLocation Loc);
-  bool AvoidConcat(const Token &PrevTok, const Token &Tok) {
-    return ConcatInfo.AvoidConcat(PrevTok, Tok);
-  }
-  void WriteLineInfo(unsigned LineNo, const char *Extra=0, unsigned ExtraLen=0);
-  
-  /// MacroDefined - This hook is called whenever a macro definition is seen.
-  void MacroDefined(const IdentifierInfo *II, const MacroInfo *MI);
-  
-};
-}  // end anonymous namespace
-
-void PrintPPOutputPPCallbacks::WriteLineInfo(unsigned LineNo,
-                                             const char *Extra,
-                                             unsigned ExtraLen) {
-  if (EmittedTokensOnThisLine) {
-    OS << '\n';
-    EmittedTokensOnThisLine = false;
-  }
-
-  OS << '#' << ' ' << LineNo << ' ' << '"';
-  OS.write(&CurFilename[0], CurFilename.size());
-  OS << '"';
-  
-  if (ExtraLen)
-    OS.write(Extra, ExtraLen);
-
-  if (FileType == SrcMgr::C_System)
-    OS.write(" 3", 2);
-  else if (FileType == SrcMgr::C_ExternCSystem)
-    OS.write(" 3 4", 4);
-  OS << '\n';
-}
-
-/// MoveToLine - Move the output to the source line specified by the location
-/// object.  We can do this by emitting some number of \n's, or be emitting a
-/// #line directive.  This returns false if already at the specified line, true
-/// if some newlines were emitted.
-bool PrintPPOutputPPCallbacks::MoveToLine(SourceLocation Loc) {
-  unsigned LineNo = PP.getSourceManager().getInstantiationLineNumber(Loc);
-
-  if (DisableLineMarkers) {
-    if (LineNo == CurLine) return false;
-    
-    CurLine = LineNo;
-    
-    if (!EmittedTokensOnThisLine)
-      return true;
-    
-    OS << '\n';
-    EmittedTokensOnThisLine = false;
-    return true;
-  }
-
-  // If this line is "close enough" to the original line, just print newlines,
-  // otherwise print a #line directive.
-  if (LineNo-CurLine <= 8) {
-    if (LineNo-CurLine == 1)
-      OS << '\n';
-    else if (LineNo == CurLine)
-      return false;    // Spelling line moved, but instantiation line didn't.
-    else {
-      const char *NewLines = "\n\n\n\n\n\n\n\n";
-      OS.write(NewLines, LineNo-CurLine);
-    }
-  } else {
-    WriteLineInfo(LineNo, 0, 0);
-  } 
-
-  CurLine = LineNo;    
-  return true;
-}
-
-
-/// FileChanged - Whenever the preprocessor enters or exits a #include file
-/// it invokes this handler.  Update our conception of the current source
-/// position.
-void PrintPPOutputPPCallbacks::FileChanged(SourceLocation Loc,
-                                           FileChangeReason Reason,
-                                       SrcMgr::CharacteristicKind NewFileType) {
-  // Unless we are exiting a #include, make sure to skip ahead to the line the
-  // #include directive was at.
-  SourceManager &SourceMgr = PP.getSourceManager();
-  if (Reason == PPCallbacks::EnterFile) {
-    SourceLocation IncludeLoc = SourceMgr.getPresumedLoc(Loc).getIncludeLoc();
-    if (IncludeLoc.isValid())
-      MoveToLine(IncludeLoc);
-  } else if (Reason == PPCallbacks::SystemHeaderPragma) {
-    MoveToLine(Loc);
-    
-    // TODO GCC emits the # directive for this directive on the line AFTER the
-    // directive and emits a bunch of spaces that aren't needed.  Emulate this
-    // strange behavior.
-  }
-  
-  Loc = SourceMgr.getInstantiationLoc(Loc);
-  // FIXME: Should use presumed line #!
-  CurLine = SourceMgr.getInstantiationLineNumber(Loc);
-
-  if (DisableLineMarkers) return;
-
-  CurFilename.clear();
-  CurFilename += SourceMgr.getPresumedLoc(Loc).getFilename();
-  Lexer::Stringify(CurFilename);
-  FileType = NewFileType;
-
-  if (!Initialized) {
-    WriteLineInfo(CurLine);
-    Initialized = true;
-  }
-
-  switch (Reason) {
-  case PPCallbacks::EnterFile:
-    WriteLineInfo(CurLine, " 1", 2);
-    break;
-  case PPCallbacks::ExitFile:
-    WriteLineInfo(CurLine, " 2", 2);
-    break;
-  case PPCallbacks::SystemHeaderPragma: 
-  case PPCallbacks::RenameFile: 
-    WriteLineInfo(CurLine);
-    break;
-  }
-}
-
-/// Ident - Handle #ident directives when read by the preprocessor.
-///
-void PrintPPOutputPPCallbacks::Ident(SourceLocation Loc, const std::string &S) {
-  MoveToLine(Loc);
-  
-  OS.write("#ident ", strlen("#ident "));
-  OS.write(&S[0], S.size());
-  EmittedTokensOnThisLine = true;
-}
-
-/// 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;
-  
-  MoveToLine(MI->getDefinitionLoc());
-  PrintMacroDefinition(*II, *MI, PP, OS);
-}
-
-
-void PrintPPOutputPPCallbacks::PragmaComment(SourceLocation Loc,
-                                             const IdentifierInfo *Kind, 
-                                             const std::string &Str) {
-  MoveToLine(Loc);
-  OS << "#pragma comment(" << Kind->getName();
-  
-  if (!Str.empty()) {
-    OS << ", \"";
-    
-    for (unsigned i = 0, e = Str.size(); i != e; ++i) {
-      unsigned char Char = Str[i];
-      if (isprint(Char) && Char != '\\' && Char != '"')
-        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 << '"';
-  }
-  
-  OS << ')';
-  EmittedTokensOnThisLine = true;
-}
-
-
-/// HandleFirstTokOnLine - When emitting a preprocessed file in -E mode, this
-/// 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"
-/// marker is set for spelling lines, not instantiation ones.
-bool PrintPPOutputPPCallbacks::HandleFirstTokOnLine(Token &Tok) {
-  // Figure out what line we went to and insert the appropriate number of
-  // newline characters.
-  if (!MoveToLine(Tok.getLocation()))
-    return false;
-  
-  // Print out space characters so that the first token on a line is
-  // indented for easy reading.
-  const SourceManager &SourceMgr = PP.getSourceManager();
-  unsigned ColNo = SourceMgr.getInstantiationColumnNumber(Tok.getLocation());
-  
-  // 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.
-  if (ColNo <= 1 && Tok.is(tok::hash))
-    OS << ' ';
-  
-  // Otherwise, indent the appropriate number of spaces.
-  for (; ColNo > 1; --ColNo)
-    OS << ' ';
-  
-  return true;
-}
-
-namespace {
-struct UnknownPragmaHandler : public PragmaHandler {
-  const char *Prefix;
-  PrintPPOutputPPCallbacks *Callbacks;
-  
-  UnknownPragmaHandler(const char *prefix, PrintPPOutputPPCallbacks *callbacks)
-    : PragmaHandler(0), Prefix(prefix), Callbacks(callbacks) {}
-  virtual void HandlePragma(Preprocessor &PP, Token &PragmaTok) {
-    // Figure out what line we went to and insert the appropriate number of
-    // newline characters.
-    Callbacks->MoveToLine(PragmaTok.getLocation());
-    Callbacks->OS.write(Prefix, strlen(Prefix));
-    
-    // Read and print all of the pragma tokens.
-    while (PragmaTok.isNot(tok::eom)) {
-      if (PragmaTok.hasLeadingSpace())
-        Callbacks->OS << ' ';
-      std::string TokSpell = PP.getSpelling(PragmaTok);
-      Callbacks->OS.write(&TokSpell[0], TokSpell.size());
-      PP.LexUnexpandedToken(PragmaTok);
-    }
-    Callbacks->OS << '\n';
-  }
-};
-} // end anonymous namespace
-
-
-static void PrintPreprocessedTokens(Preprocessor &PP, Token &Tok,
-                                    PrintPPOutputPPCallbacks *Callbacks,
-                                    llvm::raw_ostream &OS) {
-  char Buffer[256];
-  Token PrevTok;
-  while (1) {
-    
-    // If this token is at the start of a line, emit newlines if needed.
-    if (Tok.isAtStartOfLine() && Callbacks->HandleFirstTokOnLine(Tok)) {
-      // done.
-    } else if (Tok.hasLeadingSpace() || 
-               // 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 << ' ';
-    }
-    
-    if (IdentifierInfo *II = Tok.getIdentifierInfo()) {
-      OS.write(II->getName(), II->getLength());
-    } 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);
-    } else {
-      std::string S = PP.getSpelling(Tok);
-      OS.write(&S[0], S.size());
-    }
-    Callbacks->SetEmittedTokensOnThisLine();
-    
-    if (Tok.is(tok::eof)) break;
-    
-    PrevTok = Tok;
-    PP.Lex(Tok);
-  }
-}
-
-namespace {
-  struct SortMacrosByID {
-    typedef std::pair<IdentifierInfo*, MacroInfo*> id_macro_pair;
-    bool operator()(const id_macro_pair &LHS, const id_macro_pair &RHS) const {
-      return strcmp(LHS.first->getName(), RHS.first->getName()) < 0;
-    }
-  };
-}
-
-void clang::DoPrintMacros(Preprocessor &PP, llvm::raw_ostream *OS) {
-  // -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));
-
-  std::vector<std::pair<IdentifierInfo*, MacroInfo*> > MacrosByID;
-  for (Preprocessor::macro_iterator I = PP.macro_begin(), E = PP.macro_end();
-       I != E; ++I)
-    MacrosByID.push_back(*I);
-  std::sort(MacrosByID.begin(), MacrosByID.end(), SortMacrosByID());
-
-  for (unsigned i = 0, e = MacrosByID.size(); i != e; ++i) {
-    MacroInfo &MI = *MacrosByID[i].second;
-    // Ignore computed macros like __LINE__ and friends. 
-    if (MI.isBuiltinMacro()) continue;
-
-    PrintMacroDefinition(*MacrosByID[i].first, MI, PP, *OS);
-    *OS << "\n";
-  }
-}
-
-/// DoPrintPreprocessedInput - This implements -E mode.
-///
-void clang::DoPrintPreprocessedInput(Preprocessor &PP, llvm::raw_ostream *OS,
-                                     bool EnableCommentOutput,
-                                     bool EnableMacroCommentOutput,
-                                     bool DisableLineMarkers,
-                                     bool DumpDefines) {
-  // Inform the preprocessor whether we want it to retain comments or not, due
-  // to -C or -CC.
-  PP.SetCommentRetentionState(EnableCommentOutput, EnableMacroCommentOutput);
-
-  OS->SetBufferSize(64*1024);
-
-  PrintPPOutputPPCallbacks *Callbacks =
-      new PrintPPOutputPPCallbacks(PP, *OS, DisableLineMarkers, DumpDefines);
-  PP.AddPragmaHandler(0, new UnknownPragmaHandler("#pragma", Callbacks));
-  PP.AddPragmaHandler("GCC", new UnknownPragmaHandler("#pragma GCC",
-                                                      Callbacks));
-
-  PP.setPPCallbacks(Callbacks);
-
-  // 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';
-}
-