LoweringOptionsParser.h

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//===- LoweringOptionsParser.h - CIRCT Lowering Option Parser ---*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Parser for lowering options.
//
//===----------------------------------------------------------------------===//
 
#ifndef CIRCT_SUPPORT_LOWERINGOPTIONSPARSER_H
#define CIRCT_SUPPORT_LOWERINGOPTIONSPARSER_H
 
#include "circt/Support/LLVM.h"
#include "circt/Support/LoweringOptions.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/CommandLine.h"
 
namespace circt {
 
/// Commandline parser for LoweringOptions.  Delegates to the parser
/// defined by LoweringOptions.
struct LoweringOptionsParser : public llvm::cl::parser<LoweringOptions> {
 
  LoweringOptionsParser(llvm::cl::Option &option)
      : llvm::cl::parser<LoweringOptions>(option) {}
 
  bool parse(llvm::cl::Option &option, StringRef argName, StringRef argValue,
             LoweringOptions &value) {
    bool failed = false;
    value.parse(argValue, [&](Twine error) { failed = option.error(error); });
    return failed;
  }
};
 
struct LoweringOptionsOption
    : llvm::cl::opt<LoweringOptions, false, LoweringOptionsParser> {
  LoweringOptionsOption(llvm::cl::OptionCategory &cat)
      : llvm::cl::opt<LoweringOptions, false, LoweringOptionsParser>{
            "lowering-options",
            llvm::cl::desc(
                "Style options.  Valid flags include: "
                "noAlwaysComb, exprInEventControl, disallowPackedArrays, "
                "disallowLocalVariables, verifLabels, emittedLineLength=<n>, "
                "maximumNumberOfTermsPerExpression=<n>, "
                "explicitBitcast, emitReplicatedOpsToHeader, "
                "locationInfoStyle={plain,wrapInAtSquareBracket,none}, "
                "disallowPortDeclSharing, printDebugInfo, "
                "disallowExpressionInliningInPorts, disallowMuxInlining, "
                "emitWireInPort, emitBindComments, omitVersionComment, "
                "caseInsensitiveKeywords"),
            llvm::cl::cat(cat), llvm::cl::value_desc("option")} {}
};
 
} // namespace circt
 
#endif // CIRCT_SUPPORT_LOWERINGOPTIONSPARSER_H