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#include "LLVMWrapper.h"
#include "llvm/Bitcode/BitcodeReader.h"
#include "llvm/IR/Module.h"
#include "llvm/Linker/Linker.h"
#include "llvm/Support/MemoryBuffer.h"
using namespace llvm;
struct RustLinker {
Linker L;
LLVMContext &Ctx;
RustLinker(Module &M) : L(M), Ctx(M.getContext()) {}
};
extern "C" RustLinker *LLVMRustLinkerNew(LLVMModuleRef DstRef) {
Module *Dst = unwrap(DstRef);
return new RustLinker(*Dst);
}
extern "C" void LLVMRustLinkerFree(RustLinker *L) { delete L; }
extern "C" bool LLVMRustLinkerAdd(RustLinker *L, char *BC, size_t Len) {
std::unique_ptr<MemoryBuffer> Buf =
MemoryBuffer::getMemBufferCopy(StringRef(BC, Len));
Expected<std::unique_ptr<Module>> SrcOrError =
llvm::getLazyBitcodeModule(Buf->getMemBufferRef(), L->Ctx);
if (!SrcOrError) {
LLVMRustSetLastError(toString(SrcOrError.takeError()).c_str());
return false;
}
auto Src = std::move(*SrcOrError);
if (L->L.linkInModule(std::move(Src))) {
LLVMRustSetLastError("");
return false;
}
return true;
}
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