Parser.cpp revision 206274
1//===- Parser.cpp - Main dispatch module for the Parser library -----------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This library implements the functionality defined in llvm/Assembly/Parser.h 11// 12//===----------------------------------------------------------------------===// 13 14#include "llvm/Assembly/Parser.h" 15#include "LLParser.h" 16#include "llvm/Module.h" 17#include "llvm/ADT/OwningPtr.h" 18#include "llvm/Support/SourceMgr.h" 19#include "llvm/Support/MemoryBuffer.h" 20#include "llvm/Support/raw_ostream.h" 21#include <cstring> 22using namespace llvm; 23 24Module *llvm::ParseAssembly(MemoryBuffer *F, 25 Module *M, 26 SMDiagnostic &Err, 27 LLVMContext &Context) { 28 SourceMgr SM; 29 SM.AddNewSourceBuffer(F, SMLoc()); 30 31 // If we are parsing into an existing module, do it. 32 if (M) 33 return LLParser(F, SM, Err, M).Run() ? 0 : M; 34 35 // Otherwise create a new module. 36 OwningPtr<Module> M2(new Module(F->getBufferIdentifier(), Context)); 37 if (LLParser(F, SM, Err, M2.get()).Run()) 38 return 0; 39 return M2.take(); 40} 41 42Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err, 43 LLVMContext &Context) { 44 std::string ErrorStr; 45 MemoryBuffer *F = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), &ErrorStr); 46 if (F == 0) { 47 Err = SMDiagnostic(SMLoc(), "", -1, -1, 48 "Could not open input file '" + Filename + "': " + 49 ErrorStr, ""); 50 return 0; 51 } 52 53 return ParseAssembly(F, 0, Err, Context); 54} 55 56Module *llvm::ParseAssemblyString(const char *AsmString, Module *M, 57 SMDiagnostic &Err, LLVMContext &Context) { 58 MemoryBuffer *F = 59 MemoryBuffer::getMemBuffer(StringRef(AsmString, strlen(AsmString)), 60 "<string>"); 61 62 return ParseAssembly(F, M, Err, Context); 63} 64