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#include "Core/Transform.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Rewrite/Core/Rewriter.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang;
void collectResults(clang::Rewriter &Rewrite,
const FileContentsByPath &InputStates,
FileContentsByPath &Results) {
// Copy the contents of InputStates to be modified.
Results = InputStates;
for (Rewriter::buffer_iterator I = Rewrite.buffer_begin(),
E = Rewrite.buffer_end();
I != E; ++I) {
const FileEntry *Entry = Rewrite.getSourceMgr().getFileEntryForID(I->first);
assert(Entry != 0 && "Expected a FileEntry");
assert(Entry->getName() != 0 &&
"Unexpected NULL return from FileEntry::getName()");
std::string ResultBuf;
// Get a copy of the rewritten buffer from the Rewriter.
llvm::raw_string_ostream StringStream(ResultBuf);
I->second.write(StringStream);
// Cause results to be written to ResultBuf.
StringStream.str();
// FIXME: Use move semantics to avoid copies of the buffer contents if
// benchmarking shows the copies are expensive, especially for large source
// files.
Results[Entry->getName()] = ResultBuf;
}
}
bool Transform::handleBeginSource(CompilerInstance &CI, StringRef Filename) {
if (!EnableTiming)
return true;
Timings.push_back(std::make_pair(Filename.str(), llvm::TimeRecord()));
Timings.back().second -= llvm::TimeRecord::getCurrentTime(true);
return true;
}
void Transform::handleEndSource() {
if (!EnableTiming)
return;
Timings.back().second += llvm::TimeRecord::getCurrentTime(false);
}
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