From 0621cb2e7dfd89f558a045f145f900b62379dcc2 Mon Sep 17 00:00:00 2001
From: Alp Toker <alp@nuanti.com>
Date: Wed, 16 Jul 2014 16:48:33 +0000
Subject: Make clang's rewrite engine a core feature

The rewrite facility's footprint is small so it's not worth going to these
lengths to support disabling at configure time, particularly since key compiler
features now depend on it.

Meanwhile the Objective-C rewriters have been moved under the
ENABLE_CLANG_ARCMT umbrella for now as they're comparatively heavy and still
potentially worth excluding from lightweight builds.

Tests are now passing with any combination of feature flags. The flags
historically haven't been tested by LLVM's build servers so caveat emptor.

llvm-svn: 213171
---
 clang/lib/Frontend/Rewrite/RewriteTest.cpp | 39 ++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 clang/lib/Frontend/Rewrite/RewriteTest.cpp

(limited to 'clang/lib/Frontend/Rewrite/RewriteTest.cpp')

diff --git a/clang/lib/Frontend/Rewrite/RewriteTest.cpp b/clang/lib/Frontend/Rewrite/RewriteTest.cpp
new file mode 100644
index 00000000000..722c5e80b44
--- /dev/null
+++ b/clang/lib/Frontend/Rewrite/RewriteTest.cpp
@@ -0,0 +1,39 @@
+//===--- RewriteTest.cpp - Rewriter playground ----------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is a testbed.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Rewrite/Frontend/Rewriters.h"
+#include "clang/Lex/Preprocessor.h"
+#include "clang/Rewrite/Core/TokenRewriter.h"
+#include "llvm/Support/raw_ostream.h"
+
+void clang::DoRewriteTest(Preprocessor &PP, raw_ostream* OS) {
+  SourceManager &SM = PP.getSourceManager();
+  const LangOptions &LangOpts = PP.getLangOpts();
+
+  TokenRewriter Rewriter(SM.getMainFileID(), SM, LangOpts);
+
+  // Throw <i> </i> tags around comments.
+  for (TokenRewriter::token_iterator I = Rewriter.token_begin(),
+       E = Rewriter.token_end(); I != E; ++I) {
+    if (I->isNot(tok::comment)) continue;
+
+    Rewriter.AddTokenBefore(I, "<i>");
+    Rewriter.AddTokenAfter(I, "</i>");
+  }
+
+
+  // Print out the output.
+  for (TokenRewriter::token_iterator I = Rewriter.token_begin(),
+       E = Rewriter.token_end(); I != E; ++I)
+    *OS << PP.getSpelling(*I);
+}
-- 
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