Type.h

/*
 *  Type class interface
 *
 *  This file is part of OTAWA
 *  Copyright (c) 2007, IRIT UPS.
 *
 *  OTAWA is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  OTAWA 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 General Public License
 *  along with OTAWA; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef ELM_RTTI_TYPE_H_
#define ELM_RTTI_TYPE_H_
 
#include <elm/data/HashMap.h>
#include <elm/data/List.h>
#include <elm/ptr.h>
#include <elm/string.h>
#include <elm/util/Initializer.h>
 
namespace elm {
 
namespace serial2 {
    class Serializer;
    class Unserializer;
};
 
namespace rtti {
 
class AbstractClass;
class Type;
 
class Enumerable {
public:
    virtual ~Enumerable(void);
    virtual const Type& type(void) const = 0;
    virtual int valueFor(string text) const = 0;
    virtual cstring nameFor(int value) const = 0;
};
 
class Serializable {
public:
    virtual ~Serializable(void);
    virtual const Type& type(void) const = 0;
    virtual void *instantiate(void) const = 0;
    virtual void serialize(serial2::Serializer& ser, const void *data) const = 0;
    virtual void unserialize(serial2::Unserializer& uns, void *data) const = 0;
};
 
class TemplateType {
public:
    virtual ~TemplateType(void);
    virtual int count(void) const = 0;
};
 
class ParamType;
 
class InstanceType {
public:
    virtual ~InstanceType(void);
    virtual const Type& templ(void) const = 0;
    virtual const List<const Type *> params(void) const = 0;
    const Type& typeFor(const Type& param) const;
};
 
class ParamType {
public:
    virtual ~ParamType(void);
    virtual int index(void) const = 0;
};
 
class PointerType;
 
class Type {
public:
    typedef HashMap<string, const Type *>::Iter TypeIter;
    static const Type *get(string name);
    static TypeIter types(void);
 
    Type(string name = "");
    virtual ~Type(void);
    inline string name(void) const { return _name; }
    const PointerType& pointer(void) const;
    virtual bool canCast(const Type *t) const;
 
    virtual bool isVoid(void) const;
    virtual bool isBool(void) const;
    virtual bool isInt(void) const;
    virtual bool isFloat(void) const;
 
    virtual bool isPtr(void) const;
    virtual const PointerType& asPtr(void) const;
    virtual bool isClass(void) const;
    virtual const AbstractClass& asClass(void) const;
    virtual bool isEnum(void) const;
    virtual const Enumerable& asEnum(void) const;
    virtual bool isSerial(void) const;
    virtual const Serializable& asSerial(void) const;
 
    virtual const TemplateType *asTemplate(void) const;
    virtual const InstanceType *asInstance(void) const;
    virtual const ParamType *asParam(void) const;
    static const Type &param0, &param1, &param2, &param3;
 
    void initialize(void);
    inline bool operator==(const Type& t) const { return this == &t; }
    inline bool operator!=(const Type& t) const { return !operator==(t); }
private:
    string _name;
    mutable UniquePtr<PointerType>_pointer;
    static Initializer<Type> _init;
};
 
class PointerType: public Type {
public:
    PointerType(const Type& to);
    virtual bool isPtr(void) const override;
    virtual const PointerType& asPtr(void) const override;
    const Type& to(void) const { return _to; }
private:
    const Type& _to;
};
 
io::Output& operator<<(io::Output& out, const Type& type);
 
} }     // otawa::rtti
 
#endif /* ELM_RTTI_TYPE_H_ */