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/ADT/OwningPtr.h" 17 #include "llvm/IR/Module.h" 18 #include "llvm/Support/MemoryBuffer.h" 19 #include "llvm/Support/SourceMgr.h" 20 #include "llvm/Support/raw_ostream.h" 21 #include "llvm/Support/system_error.h" 22 #include <cstring> 23 using namespace llvm; 24 25 Module *llvm::ParseAssembly(MemoryBuffer *F, 26 Module *M, 27 SMDiagnostic &Err, 28 LLVMContext &Context) { 29 SourceMgr SM; 30 SM.AddNewSourceBuffer(F, SMLoc()); 31 32 // If we are parsing into an existing module, do it. 33 if (M) 34 return LLParser(F, SM, Err, M).Run() ? 0 : M; 35 36 // Otherwise create a new module. 37 OwningPtr<Module> M2(new Module(F->getBufferIdentifier(), Context)); 38 if (LLParser(F, SM, Err, M2.get()).Run()) 39 return 0; 40 return M2.take(); 41 } 42 43 Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err, 44 LLVMContext &Context) { 45 OwningPtr<MemoryBuffer> File; 46 if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, File)) { 47 Err = SMDiagnostic(Filename, SourceMgr::DK_Error, 48 "Could not open input file: " + ec.message()); 49 return 0; 50 } 51 52 return ParseAssembly(File.take(), 0, Err, Context); 53 } 54 55 Module *llvm::ParseAssemblyString(const char *AsmString, Module *M, 56 SMDiagnostic &Err, LLVMContext &Context) { 57 MemoryBuffer *F = 58 MemoryBuffer::getMemBuffer(StringRef(AsmString, strlen(AsmString)), 59 "<string>"); 60 61 return ParseAssembly(F, M, Err, Context); 62 } 63
