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//===- Parser.cpp - Main dispatch module for the Parser library -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This library implements the functionality defined in llvm/AsmParser/Parser.h
//
//===----------------------------------------------------------------------===//
#include "llvm/AsmParser/Parser.h"
#include "LLParser.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/raw_ostream.h"
#include <cstring>
#include <system_error>
using namespace llvm;
Module *llvm::ParseAssembly(MemoryBuffer *F,
Module *M,
SMDiagnostic &Err,
LLVMContext &Context) {
SourceMgr SM;
SM.AddNewSourceBuffer(F, SMLoc());
// If we are parsing into an existing module, do it.
if (M)
return LLParser(F, SM, Err, M).Run() ? nullptr : M;
// Otherwise create a new module.
std::unique_ptr<Module> M2(new Module(F->getBufferIdentifier(), Context));
if (LLParser(F, SM, Err, M2.get()).Run())
return nullptr;
return M2.release();
}
Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err,
LLVMContext &Context) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Filename);
if (std::error_code EC = FileOrErr.getError()) {
Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
"Could not open input file: " + EC.message());
return nullptr;
}
return ParseAssembly(FileOrErr.get().release(), nullptr, Err, Context);
}
Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,
SMDiagnostic &Err, LLVMContext &Context) {
MemoryBuffer *F =
MemoryBuffer::getMemBuffer(StringRef(AsmString), "<string>");
return ParseAssembly(F, M, Err, Context);
}
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