frontends/common/model.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_MODEL_H_
#define FRONTENDS_COMMON_MODEL_H_
 
#include "ir/id.h"
#include "lib/cstring.h"
 
// Classes for representing various P4 program models inside the compiler
 
namespace P4::Model {
 
// Model element
struct Elem {
    explicit Elem(cstring name) : name(name) {}
    Elem() = delete;
 
    cstring name;
    IR::ID Id() const { return IR::ID(name); }
    IR::ID Id(Util::SourceInfo srcInfo) const { return IR::ID(srcInfo, name); }
    IR::ID Id(Util::SourceInfo srcInfo, cstring originalName) const {
        return IR::ID(srcInfo, name, originalName);
    }
    const char *str() const { return name.c_str(); }
    cstring toString() const { return name; }
};
 
struct Type_Model : public Elem {
    explicit Type_Model(cstring name) : Elem(name) {}
};

struct Enum_Model : public Type_Model {
    explicit Enum_Model(cstring name) : Type_Model(name) {}
};

struct Extern_Model : public Type_Model {
    explicit Extern_Model(cstring name) : Type_Model(name) {}
};

struct Param_Model : public Elem {
    const Type_Model type;
    const unsigned index;
    Param_Model(cstring name, Type_Model type, unsigned index)
        : Elem(name), type(type), index(index) {}
};
 
class Model {};
 
}  // namespace P4::Model
 
#endif /* FRONTENDS_COMMON_MODEL_H_ */