1b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner//===--- RewriteMacros.cpp - Rewrite macros into their expansions ---------===// 2b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// 3b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// The LLVM Compiler Infrastructure 4b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// 5b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// This file is distributed under the University of Illinois Open Source 6b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// License. See LICENSE.TXT for details. 7b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// 8b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner//===----------------------------------------------------------------------===// 9b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// 10b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// This code rewrites macro invocations into their expansions. This gives you 11b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// a macro expanded file that retains comments and #includes. 12b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner// 13b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner//===----------------------------------------------------------------------===// 14b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner 15305c613af6cfc40e519c75d9d2c84c6fa9a841c0Ted Kremenek#include "clang/Rewrite/Frontend/Rewriters.h" 16b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner#include "clang/Basic/SourceManager.h" 1755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Lex/Preprocessor.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Rewrite/Core/Rewriter.h" 19a95d3750441ac8ad03e36af8e6e74039c9a3109dTed Kremenek#include "llvm/ADT/OwningPtr.h" 2055fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Path.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/raw_ostream.h" 22f42e4a6e089e8413247400fe58ad299193371f9cTorok Edwin#include <cstdio> 23f42e4a6e089e8413247400fe58ad299193371f9cTorok Edwin 24b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattnerusing namespace clang; 25b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner 26ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner/// isSameToken - Return true if the two specified tokens start have the same 27ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner/// content. 28ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattnerstatic bool isSameToken(Token &RawTok, Token &PPTok) { 298ea78e6e5717d8e6ea9cd31a5d5982494dab6bffChris Lattner // If two tokens have the same kind and the same identifier info, they are 308ea78e6e5717d8e6ea9cd31a5d5982494dab6bffChris Lattner // obviously the same. 318ea78e6e5717d8e6ea9cd31a5d5982494dab6bffChris Lattner if (PPTok.getKind() == RawTok.getKind() && 328ea78e6e5717d8e6ea9cd31a5d5982494dab6bffChris Lattner PPTok.getIdentifierInfo() == RawTok.getIdentifierInfo()) 33ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner return true; 341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 358ea78e6e5717d8e6ea9cd31a5d5982494dab6bffChris Lattner // Otherwise, if they are different but have the same identifier info, they 368ea78e6e5717d8e6ea9cd31a5d5982494dab6bffChris Lattner // are also considered to be the same. This allows keywords and raw lexed 378ea78e6e5717d8e6ea9cd31a5d5982494dab6bffChris Lattner // identifiers with the same name to be treated the same. 38ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner if (PPTok.getIdentifierInfo() && 39ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner PPTok.getIdentifierInfo() == RawTok.getIdentifierInfo()) 40ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner return true; 411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner return false; 43ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner} 44ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 450d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner 460d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner/// GetNextRawTok - Return the next raw token in the stream, skipping over 470d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner/// comments if ReturnComment is false. 480d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattnerstatic const Token &GetNextRawTok(const std::vector<Token> &RawTokens, 490d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner unsigned &CurTok, bool ReturnComment) { 500d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner assert(CurTok < RawTokens.size() && "Overran eof!"); 511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 520d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner // If the client doesn't want comments and we have one, skip it. 530d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner if (!ReturnComment && RawTokens[CurTok].is(tok::comment)) 540d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner ++CurTok; 551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 560d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner return RawTokens[CurTok++]; 570d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner} 580d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner 590d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner 600d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner/// LexRawTokensFromMainFile - Lets all the raw tokens from the main file into 610d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner/// the specified vector. 620d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattnerstatic void LexRawTokensFromMainFile(Preprocessor &PP, 630d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner std::vector<Token> &RawTokens) { 640d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner SourceManager &SM = PP.getSourceManager(); 651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 660d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner // Create a lexer to lex all the tokens of the main file in raw mode. Even 670d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner // though it is in raw mode, it will not return comments. 686e2901407bff59aeb4cc301cc58b034723d0eb49Chris Lattner const llvm::MemoryBuffer *FromFile = SM.getBuffer(SM.getMainFileID()); 694e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Lexer RawLex(SM.getMainFileID(), FromFile, SM, PP.getLangOpts()); 700d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner 710d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner // Switch on comment lexing because we really do want them. 720d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner RawLex.SetCommentRetentionState(true); 731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 740d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner Token RawTok; 750d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner do { 76590f0cc643274267d4d41125b62557e1d87886c3Chris Lattner RawLex.LexFromRawLexer(RawTok); 771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 780d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner // If we have an identifier with no identifier info for our raw token, look 790d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner // up the indentifier info. This is important for equality comparison of 800d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner // identifier tokens. 81c4bf2b9afb7d47445a9dc6bc848657098a4e3851Abramo Bagnara if (RawTok.is(tok::raw_identifier)) 8265cc1e889c0c2c617a81a0ae032fa4fb24760f38Kovarththanan Rajaratnam PP.LookUpIdentifierInfo(RawTok); 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 840d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner RawTokens.push_back(RawTok); 850d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner } while (RawTok.isNot(tok::eof)); 86ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner} 87ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 880d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner 89b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner/// RewriteMacrosInInput - Implement -rewrite-macros mode. 905f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid clang::RewriteMacrosInInput(Preprocessor &PP, raw_ostream *OS) { 91b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner SourceManager &SM = PP.getSourceManager(); 921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 93b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner Rewriter Rewrite; 944e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Rewrite.setSourceMgr(SM, PP.getLangOpts()); 95ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner RewriteBuffer &RB = Rewrite.getEditBuffer(SM.getMainFileID()); 96b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner 970d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner std::vector<Token> RawTokens; 980d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner LexRawTokensFromMainFile(PP, RawTokens); 990d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner unsigned CurRawTok = 0; 1000d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner Token RawTok = GetNextRawTok(RawTokens, CurRawTok, false); 1010d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner 1021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 103ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // Get the first preprocessing token. 104e127a0d80155b45dafe77f2b4380e5fa111a3345Chris Lattner PP.EnterMainSourceFile(); 105ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner Token PPTok; 106ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner PP.Lex(PPTok); 1071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // Preprocess the input file in parallel with raw lexing the main file. Ignore 109ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // all tokens that are preprocessed from a file other than the main file (e.g. 110a9bc2d98a2ab5b8c09f06e95487f9e448effb12aTed Kremenek // a header). If we see tokens that are in the preprocessed file but not the 111ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // lexed file, we have a macro expansion. If we see tokens in the lexed file 112ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // that aren't in the preprocessed view, we have macros that expand to no 113ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // tokens, or macro arguments etc. 114ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner while (RawTok.isNot(tok::eof) || PPTok.isNot(tok::eof)) { 115402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth SourceLocation PPLoc = SM.getExpansionLoc(PPTok.getLocation()); 116ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 117ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // If PPTok is from a different source file, ignore it. 118ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner if (!SM.isFromMainFile(PPLoc)) { 119ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner PP.Lex(PPTok); 120ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner continue; 121ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } 1221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 123ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // If the raw file hits a preprocessor directive, they will be extra tokens 124a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // in the raw file that don't exist in the preprocsesed file. However, we 125a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // choose to preserve them in the output file and otherwise handle them 126a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // specially. 127ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner if (RawTok.is(tok::hash) && RawTok.isAtStartOfLine()) { 128a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // If this is a #warning directive or #pragma mark (GNU extensions), 129a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // comment the line out. 130a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner if (RawTokens[CurRawTok].is(tok::identifier)) { 131a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner const IdentifierInfo *II = RawTokens[CurRawTok].getIdentifierInfo(); 13201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar if (II->getName() == "warning") { 133a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // Comment out #warning. 134d7407dc92c7d19cafce429e7e1cf9819d3fc0b92Daniel Dunbar RB.InsertTextAfter(SM.getFileOffset(RawTok.getLocation()), "//"); 13501eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar } else if (II->getName() == "pragma" && 136a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner RawTokens[CurRawTok+1].is(tok::identifier) && 13701eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar (RawTokens[CurRawTok+1].getIdentifierInfo()->getName() == 1385ffe14ca96bd662de7820f6875d3f04789a640c1Daniel Dunbar "mark")) { 139a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // Comment out #pragma mark. 140d7407dc92c7d19cafce429e7e1cf9819d3fc0b92Daniel Dunbar RB.InsertTextAfter(SM.getFileOffset(RawTok.getLocation()), "//"); 141a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner } 142a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner } 1431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 144a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // Otherwise, if this is a #include or some other directive, just leave it 145a59e05070b25861a8974817c87d7aa782c9a52f8Chris Lattner // in the file by skipping over the line. 1460d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner RawTok = GetNextRawTok(RawTokens, CurRawTok, false); 147ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner while (!RawTok.isAtStartOfLine() && RawTok.isNot(tok::eof)) 1480d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner RawTok = GetNextRawTok(RawTokens, CurRawTok, false); 149ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner continue; 150ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } 1511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 152ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // Okay, both tokens are from the same file. Get their offsets from the 153ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // start of the file. 15452c29081281955d3db9e11d10573b2d38f709099Chris Lattner unsigned PPOffs = SM.getFileOffset(PPLoc); 15552c29081281955d3db9e11d10573b2d38f709099Chris Lattner unsigned RawOffs = SM.getFileOffset(RawTok.getLocation()); 156ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 157ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // If the offsets are the same and the token kind is the same, ignore them. 158ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner if (PPOffs == RawOffs && isSameToken(RawTok, PPTok)) { 1590d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner RawTok = GetNextRawTok(RawTokens, CurRawTok, false); 160ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner PP.Lex(PPTok); 161ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner continue; 162ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } 163ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 164ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // If the PP token is farther along than the raw token, something was 165ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // deleted. Comment out the raw token. 166ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner if (RawOffs <= PPOffs) { 167ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // Comment out a whole run of tokens instead of bracketing each one with 1681a78735ade87b547473eff6d630b7569afabb708Chris Lattner // comments. Add a leading space if RawTok didn't have one. 1691a78735ade87b547473eff6d630b7569afabb708Chris Lattner bool HasSpace = RawTok.hasLeadingSpace(); 1702bfdad11960ef1d3694d7653f1238191e75e956aNico Weber RB.InsertTextAfter(RawOffs, &" /*"[HasSpace]); 171ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner unsigned EndPos; 172ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 173ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner do { 174ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner EndPos = RawOffs+RawTok.getLength(); 175ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 1760d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner RawTok = GetNextRawTok(RawTokens, CurRawTok, true); 17752c29081281955d3db9e11d10573b2d38f709099Chris Lattner RawOffs = SM.getFileOffset(RawTok.getLocation()); 1781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 179ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner if (RawTok.is(tok::comment)) { 180ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // Skip past the comment. 1810d76fcde927a893dd4a866b566cfba4644c924a6Chris Lattner RawTok = GetNextRawTok(RawTokens, CurRawTok, false); 182ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner break; 183ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } 1841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 185ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } while (RawOffs <= PPOffs && !RawTok.isAtStartOfLine() && 186ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner (PPOffs != RawOffs || !isSameToken(RawTok, PPTok))); 187ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner 188d7407dc92c7d19cafce429e7e1cf9819d3fc0b92Daniel Dunbar RB.InsertTextBefore(EndPos, "*/"); 189ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner continue; 190ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } 1911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 192ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // Otherwise, there was a replacement an expansion. Insert the new token 193ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // in the output buffer. Insert the whole run of new tokens at once to get 194ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner // them in the right order. 195ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner unsigned InsertPos = PPOffs; 196ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner std::string Expansion; 197ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner while (PPOffs < RawOffs) { 198ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner Expansion += ' ' + PP.getSpelling(PPTok); 199ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner PP.Lex(PPTok); 200402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth PPLoc = SM.getExpansionLoc(PPTok.getLocation()); 20152c29081281955d3db9e11d10573b2d38f709099Chris Lattner PPOffs = SM.getFileOffset(PPLoc); 202ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } 203ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner Expansion += ' '; 204d7407dc92c7d19cafce429e7e1cf9819d3fc0b92Daniel Dunbar RB.InsertTextBefore(InsertPos, Expansion); 205ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner } 206b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner 207b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner // Get the buffer corresponding to MainFileID. If we haven't changed it, then 208b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner // we are done. 2091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const RewriteBuffer *RewriteBuf = 210ec9215604073ccd79f26bbd2650dd691d8e7df8dChris Lattner Rewrite.getRewriteBufferFor(SM.getMainFileID())) { 211b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner //printf("Changed:\n"); 212f54fce8ff8818cde6b421265f709319f5fea0844Eli Friedman *OS << std::string(RewriteBuf->begin(), RewriteBuf->end()); 213b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner } else { 214b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner fprintf(stderr, "No changes\n"); 215b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner } 216f54fce8ff8818cde6b421265f709319f5fea0844Eli Friedman OS->flush(); 217b57e3d47c3a9c7453092e62c3f021e646a8c8638Chris Lattner} 218