applyOptionsPragmas.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 FRONTENDS_COMMON_APPLYOPTIONSPRAGMAS_H_
#define FRONTENDS_COMMON_APPLYOPTIONSPRAGMAS_H_
 
#include <optional>
#include <vector>
 
#include "ir/ir.h"
#include "ir/visitor.h"
#include "lib/cstring.h"
 
namespace P4 {

class IOptionPragmaParser {
 public:
    using CommandLineOptions = std::vector<const char *>;
 
    virtual std::optional<CommandLineOptions> tryToParse(const IR::Annotation *annotation) = 0;
};

class ApplyOptionsPragmas : public Inspector {
 public:
    explicit ApplyOptionsPragmas(IOptionPragmaParser &parser);
 
    bool preorder(const IR::Annotation *annotation) override;
    void end_apply() override;
 
 private:
    IOptionPragmaParser &parser;
    IOptionPragmaParser::CommandLineOptions options;
};

class P4COptionPragmaParser : public IOptionPragmaParser {
    bool supportCommandLinePragma;
 
 public:
    std::optional<CommandLineOptions> tryToParse(const IR::Annotation *annotation) override;
 
    explicit P4COptionPragmaParser(bool supportCommandLinePragma)
        : supportCommandLinePragma(supportCommandLinePragma) {}
 
 private:
    std::optional<CommandLineOptions> parseDiagnostic(const IR::Annotation *annotation);
};
 
}  // namespace P4
 
#endif /* FRONTENDS_COMMON_APPLYOPTIONSPRAGMAS_H_ */