2ac3cd20ca
This commits removes TableGens reliance on managed static global record state by moving the RecordContext into the RecordKeeper. The RecordKeeper is now treated similarly to a (LLVM|MLIR|etc)Context object and is passed to static construction functions. This is an important step forward in removing TableGens reliance on global state, and in a followup will allow for users that parse tablegen to parse multiple tablegen files without worrying about Record lifetime. Differential Revision: https://reviews.llvm.org/D125276
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
//===- Parser.cpp - Top-Level TableGen Parser implementation --------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/TableGen/Parser.h"
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#include "TGParser.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/TableGen/Error.h"
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#include "llvm/TableGen/Record.h"
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using namespace llvm;
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bool llvm::TableGenParseFile(std::unique_ptr<MemoryBuffer> Buffer,
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std::vector<std::string> IncludeDirs,
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TableGenParserFn ParserFn) {
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RecordKeeper Records;
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Records.saveInputFilename(Buffer->getBufferIdentifier().str());
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SrcMgr = SourceMgr();
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SrcMgr.AddNewSourceBuffer(std::move(Buffer), SMLoc());
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SrcMgr.setIncludeDirs(IncludeDirs);
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TGParser Parser(SrcMgr, /*Macros=*/None, Records);
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if (Parser.ParseFile())
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return true;
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// Invoke the provided handler function.
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if (ParserFn(Records))
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return true;
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// After parsing, reset the tablegen data.
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SrcMgr = SourceMgr();
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return false;
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}
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