1 //===--- RewriteTest.cpp - Rewriter playground ----------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This is a testbed. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "clang/Lex/Preprocessor.h" 14 #include "clang/Rewrite/Core/TokenRewriter.h" 15 #include "clang/Rewrite/Frontend/Rewriters.h" 16 #include "llvm/Support/raw_ostream.h" 17 18 void clang::DoRewriteTest(Preprocessor &PP, raw_ostream *OS) { 19 SourceManager &SM = PP.getSourceManager(); 20 const LangOptions &LangOpts = PP.getLangOpts(); 21 22 TokenRewriter Rewriter(SM.getMainFileID(), SM, LangOpts); 23 24 // Throw <i> </i> tags around comments. 25 for (TokenRewriter::token_iterator I = Rewriter.token_begin(), 26 E = Rewriter.token_end(); I != E; ++I) { 27 if (I->isNot(tok::comment)) continue; 28 29 Rewriter.AddTokenBefore(I, "<i>"); 30 Rewriter.AddTokenAfter(I, "</i>"); 31 } 32 33 34 // Print out the output. 35 for (TokenRewriter::token_iterator I = Rewriter.token_begin(), 36 E = Rewriter.token_end(); I != E; ++I) 37 *OS << PP.getSpelling(*I); 38 } 39