Interface.h

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/*
* Nirvana IDL front-end library.
*
* This is a part of the Nirvana project.
*
* Author: Igor Popov
*
* Copyright (c) 2021 Igor Popov.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
*
* Send comments and/or bug reports to:
*  popov.nirvana@gmail.com
*/
#ifndef IDLFE_AST_INTERFACE_H_
#define IDLFE_AST_INTERFACE_H_
#pragma once
 
#include "IV_Base.h"
#include <unordered_set>
 
namespace AST {
 
class Interface;
 
class InterfaceKind
{
public:
    enum Kind
    {
        UNCONSTRAINED, 
        ABSTRACT,      
        LOCAL,         
 
        PSEUDO
    };
 
    Kind interface_kind () const noexcept
    {
        return kind_;
    }
 
    InterfaceKind (Kind kind = UNCONSTRAINED) noexcept :
        kind_ (kind)
    {}
 
private:
    friend class Builder;
 
    const char* interface_kind_name () const noexcept;
 
private:
    Kind kind_;
};
 
typedef std::vector <const Interface*> Interfaces;
 
class Interface :
    public IV_Base,
    public InterfaceKind
{
public:
    const Interfaces& bases () const noexcept
    {
        return bases_;
    }
 
    Interfaces get_all_bases () const;
 
private:
    template <class T> friend class Ptr;
    friend class Builder;
    friend class ValueType;
 
    void get_all_interfaces (IV_Bases& all) const;
 
    Interface (Builder& builder, const SimpleDeclarator& name, InterfaceKind kind = InterfaceKind ()) :
        IV_Base (Item::Kind::INTERFACE, builder, name),
        InterfaceKind (kind)
    {}
 
    void add_base (const Interface& base)
    {
        bases_.push_back (&base);
    }
 
    void get_all_bases (std::unordered_set <const Interface*>& bset, Interfaces& bvec) const;
 
private:
    Interfaces bases_;
};
 
class InterfaceDecl :
    public ItemWithId,
    public InterfaceKind
{
private:
    template <class T> friend class Ptr;
 
    InterfaceDecl (Builder& builder, const SimpleDeclarator& name, InterfaceKind kind = InterfaceKind ()) :
        ItemWithId (Item::Kind::INTERFACE_DECL, builder, name),
        InterfaceKind (kind)
    {}
};
 
}
 
#endif