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 "RecordContext.h" 11 #include "TGParser.h" 12 #include "llvm/Support/MemoryBuffer.h" 13 #include "llvm/TableGen/Error.h" 14 #include "llvm/TableGen/Record.h" 15 16 using namespace llvm; 17 18 bool llvm::TableGenParseFile(std::unique_ptr<MemoryBuffer> Buffer, 19 std::vector<std::string> IncludeDirs, 20 TableGenParserFn ParserFn) { 21 RecordKeeper Records; 22 Records.saveInputFilename(Buffer->getBufferIdentifier().str()); 23 24 SrcMgr = SourceMgr(); 25 SrcMgr.AddNewSourceBuffer(std::move(Buffer), SMLoc()); 26 SrcMgr.setIncludeDirs(IncludeDirs); 27 TGParser Parser(SrcMgr, /*Macros=*/None, Records); 28 if (Parser.ParseFile()) 29 return true; 30 31 // Invoke the provided handler function. 32 if (ParserFn(Records)) 33 return true; 34 35 // After parsing, reset the tablegen data. 36 detail::resetTablegenRecordContext(); 37 SrcMgr = SourceMgr(); 38 return false; 39 } 40