1 //===- Parser.cpp - Top-Level TableGen Parser implementation --------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/TableGen/Parser.h" 10 #include "TGParser.h" 11 #include "llvm/Support/MemoryBuffer.h" 12 #include "llvm/TableGen/Error.h" 13 #include "llvm/TableGen/Record.h" 14 15 using namespace llvm; 16 17 bool llvm::TableGenParseFile(std::unique_ptr<MemoryBuffer> Buffer, 18 std::vector<std::string> IncludeDirs, 19 TableGenParserFn ParserFn) { 20 RecordKeeper Records; 21 Records.saveInputFilename(Buffer->getBufferIdentifier().str()); 22 23 SrcMgr = SourceMgr(); 24 SrcMgr.AddNewSourceBuffer(std::move(Buffer), SMLoc()); 25 SrcMgr.setIncludeDirs(IncludeDirs); 26 TGParser Parser(SrcMgr, /*Macros=*/None, Records); 27 if (Parser.ParseFile()) 28 return true; 29 30 // Invoke the provided handler function. 31 if (ParserFn(Records)) 32 return true; 33 34 // After parsing, reset the tablegen data. 35 SrcMgr = SourceMgr(); 36 return false; 37 } 38