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