backends/bmv2/common/options.h

/*
Copyright 2013-present Barefoot Networks, Inc.
 
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
 
    http://www.apache.org/licenses/LICENSE-2.0
 
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
 
#ifndef BACKENDS_BMV2_COMMON_OPTIONS_H_
#define BACKENDS_BMV2_COMMON_OPTIONS_H_
 
#include <getopt.h>
 
#include "frontends/common/options.h"
 
namespace P4::BMV2 {
 
class BMV2Options : public CompilerOptions {
 public:
    bool emitExterns = false;
    std::filesystem::path outputFile;
    bool loadIRFromJson = false;
 
    BMV2Options() {
        registerOption(
            "--emit-externs", nullptr,
            [this](const char *) {
                emitExterns = true;
                return true;
            },
            "[BMv2 back-end] Force externs be emitted by the backend.\n"
            "The generated code follows the BMv2 JSON specification.");
        registerOption(
            "-o", "outfile",
            [this](const char *arg) {
                outputFile = arg;
                return true;
            },
            "Write output to outfile");
        registerOption(
            "--fromJSON", "file",
            [this](const char *arg) {
                loadIRFromJson = true;
                file = arg;
                return true;
            },
            "Use IR representation from JsonFile dumped previously,"
            "the compilation starts with reduced midEnd.");
    }
};
 
using BMV2Context = P4CContextWithOptions<BMV2Options>;
 
}  // namespace P4::BMV2
 
#endif /* BACKENDS_BMV2_COMMON_OPTIONS_H_ */