Error zlib::compress(StringRef InputBuffer,
SmallVectorImpl<char> &CompressedBuffer, int Level) {
unsigned long CompressedSize = ::compressBound(InputBuffer.size());
CompressedBuffer.reserve(CompressedSize);
int Res =
::compress2((Bytef *)CompressedBuffer.data(), &CompressedSize,
(const Bytef *)InputBuffer.data(), InputBuffer.size(), Level);
// Tell MemorySanitizer that zlib output buffer is fully initialized.
// This avoids a false report when running LLVM with uninstrumented ZLib.
__msan_unpoison(CompressedBuffer.data(), CompressedSize);
CompressedBuffer.set_size(CompressedSize);
return Res ? createError(convertZlibCodeToString(Res)) : Error::success();
}
void replace_extension(SmallVectorImpl<char> &path, const Twine &extension,
Style style) {
StringRef p(path.begin(), path.size());
SmallString<32> ext_storage;
StringRef ext = extension.toStringRef(ext_storage);
// Erase existing extension.
size_t pos = p.find_last_of('.');
if (pos != StringRef::npos && pos >= filename_pos(p, style))
path.set_size(pos);
// Append '.' if needed.
if (ext.size() > 0 && ext[0] != '.')
path.push_back('.');
// Append extension.
path.append(ext.begin(), ext.end());
}
void remove_filename(SmallVectorImpl<char> &path, Style style) {
size_t end_pos = parent_path_end(StringRef(path.begin(), path.size()), style);
if (end_pos != StringRef::npos)
path.set_size(end_pos);
}
