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
17void clang::DoRewriteTest(Preprocessor &PP, raw_ostream *OS) {
18 SourceManager &SM = PP.getSourceManager();
19 const LangOptions &LangOpts = PP.getLangOpts();
20
21 TokenRewriter Rewriter(SM.getMainFileID(), SM, LangOpts);
22
23 // Throw <i> </i> tags around comments.
24 for (TokenRewriter::token_iterator I = Rewriter.token_begin(),
25 E = Rewriter.token_end(); I != E; ++I) {
26 if (I->isNot(K: tok::comment)) continue;
27
28 Rewriter.AddTokenBefore(I, Val: "<i>");
29 Rewriter.AddTokenAfter(I, Val: "</i>");
30 }
31
32
33 // Print out the output.
34 for (TokenRewriter::token_iterator I = Rewriter.token_begin(),
35 E = Rewriter.token_end(); I != E; ++I)
36 *OS << PP.getSpelling(Tok: *I);
37}
38