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//===--- RewriteTest.cpp - Playground for the code rewriter ---------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Hacks and fun related to the code rewriter.
//
//===----------------------------------------------------------------------===//
#include "ASTConsumers.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/Rewrite/Rewriter.h"
#include "clang/Rewrite/HTMLRewrite.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/Support/MemoryBuffer.h"
#include "clang/AST/ASTContext.h"
#include <sstream>
using namespace clang;
namespace {
class HTMLPrinter : public ASTConsumer {
Rewriter R;
public:
HTMLPrinter() {}
virtual ~HTMLPrinter();
void Initialize(ASTContext &context);
};
}
ASTConsumer* clang::CreateHTMLPrinter() { return new HTMLPrinter(); }
void HTMLPrinter::Initialize(ASTContext &context) {
R.setSourceMgr(context.getSourceManager());
}
HTMLPrinter::~HTMLPrinter() {
unsigned FileID = R.getSourceMgr().getMainFileID();
const llvm::MemoryBuffer *Buf = R.getSourceMgr().getBuffer(FileID);
const char* FileStart = Buf->getBufferStart();
const char* FileEnd = Buf->getBufferEnd();
SourceLocation StartLoc = SourceLocation::getFileLoc(FileID, 0);
SourceLocation EndLoc = SourceLocation::getFileLoc(FileID, FileEnd-FileStart);
html::EscapeText(R, FileID);
html::AddLineNumbers(R, FileID);
// Generate header
{
std::ostringstream os;
os << "<html>\n<head>\n"
<< " <style type=\"text/css\">\n"
<< " .nums, .lines { vertical-align:top }\n"
<< " .nums { padding-right:.5em; width:2.5em }\n"
<< " </style>\n"
<< "</head>\n"
<< "<body>\n<pre>";
R.InsertTextBefore(StartLoc, os.str().c_str(), os.str().size());
}
// Generate footer
{
std::ostringstream os;
os << "</pre>\n</body></html>\n";
R.InsertTextAfter(EndLoc, os.str().c_str(), os.str().size());
}
// Emit the HTML.
if (const RewriteBuffer *RewriteBuf = R.getRewriteBufferFor(FileID)) {
std::string S(RewriteBuf->begin(), RewriteBuf->end());
printf("%s\n", S.c_str());
}
}
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