// Returns a buffer pointing to a member file containing a given symbol.
// This function is thread-safe.
MemoryBufferRef ArchiveFile::getMember(const Archive::Symbol *Sym) {
auto ItOrErr = Sym->getMember();
error(ItOrErr,
Twine("Could not get the member for symbol ") + Sym->getName());
Archive::child_iterator It = *ItOrErr;
// Return an empty buffer if we have already returned the same buffer.
if (Seen[It->getChildOffset()].test_and_set())
return MemoryBufferRef();
ErrorOr<MemoryBufferRef> Ret = It->getMemoryBufferRef();
error(Ret, Twine("Could not get the buffer for the member defining symbol ") +
Sym->getName());
return *Ret;
}
