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[Coverage] Clarify ownership of a MemoryBuffer in the reader (NFC) 

Pass a `MemoryBuffer &` to BinaryCoverageReader::create() instead of a
`std::unique_ptr<MemoryBuffer> &`. This makes it easier to reason about
the ownership of the buffer at a glance.

llvm-svn: 273326
This commit is contained in:
Vedant Kumar 2016-06-21 22:22:33 +00:00
parent 310d3b975f
commit 7a7f5348a7
3 changed files with 10 additions and 10 deletions
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3
llvm/include/llvm/ProfileData/Coverage/CoverageMappingReader.h
View File

@ -181,8 +181,7 @@ private:
public:
static Expected<std::unique_ptr<BinaryCoverageReader>>
create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
StringRef Arch);
create(MemoryBuffer &ObjectBuffer, StringRef Arch);
Error readNextRecord(CoverageMappingRecord &Record) override;
};

8
llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
View File

@ -236,11 +236,13 @@ CoverageMapping::load(CoverageMappingReader &CoverageReader,
Expected<std::unique_ptr<CoverageMapping>>
CoverageMapping::load(StringRef ObjectFilename, StringRef ProfileFilename,
StringRef Arch) {
auto CounterMappingBuff = MemoryBuffer::getFileOrSTDIN(ObjectFilename);
if (std::error_code EC = CounterMappingBuff.getError())
auto CounterMappingBufOrErr = MemoryBuffer::getFileOrSTDIN(ObjectFilename);
if (std::error_code EC = CounterMappingBufOrErr.getError())
return errorCodeToError(EC);
std::unique_ptr<MemoryBuffer> ObjectBuffer =
std::move(CounterMappingBufOrErr.get());
auto CoverageReaderOrErr =
BinaryCoverageReader::create(CounterMappingBuff.get(), Arch);
BinaryCoverageReader::create(*ObjectBuffer.get(), Arch);
if (Error E = CoverageReaderOrErr.takeError())
return std::move(E);
auto CoverageReader = std::move(CoverageReaderOrErr.get());

9
llvm/lib/ProfileData/Coverage/CoverageMappingReader.cpp
View File

@ -641,8 +641,7 @@ static Error loadBinaryFormat(MemoryBufferRef ObjectBuffer,
}
Expected<std::unique_ptr<BinaryCoverageReader>>
BinaryCoverageReader::create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
StringRef Arch) {
BinaryCoverageReader::create(MemoryBuffer &ObjectBuffer, StringRef Arch) {
std::unique_ptr<BinaryCoverageReader> Reader(new BinaryCoverageReader());
StringRef Coverage;
@ -650,12 +649,12 @@ BinaryCoverageReader::create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
support::endianness Endian;
Error E;
consumeError(std::move(E));
if (ObjectBuffer->getBuffer().startswith(TestingFormatMagic))
if (ObjectBuffer.getBuffer().startswith(TestingFormatMagic))
// This is a special format used for testing.
E = loadTestingFormat(ObjectBuffer->getBuffer(), Reader->ProfileNames,
E = loadTestingFormat(ObjectBuffer.getBuffer(), Reader->ProfileNames,
Coverage, BytesInAddress, Endian);
else
E = loadBinaryFormat(ObjectBuffer->getMemBufferRef(), Reader->ProfileNames,
E = loadBinaryFormat(ObjectBuffer.getMemBufferRef(), Reader->ProfileNames,
Coverage, BytesInAddress, Endian, Arch);
if (E)
return std::move(E);