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// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>

//

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to deal

// in the Software without restriction, including without limitation the rights

// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in

// all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

// THE SOFTWARE.

#ifndef CPLUSPLUS_LITERALS_H

#define CPLUSPLUS_LITERALS_H

#include "CPlusPlusForwardDeclarations.h"

#include "Token.h"

namespace CPlusPlus {

class CPLUSPLUS_EXPORT Literal

{

    Literal(const Literal &other);

    void operator =(const Literal &other);

public:

    typedef const char *iterator;

    typedef iterator const_iterator;

public:

    Literal(const char *chars, unsigned size);

    virtual ~Literal();

    iterator begin() const;

    iterator end() const;

    char at(unsigned index) const;

    const char *chars() const;

    unsigned size() const;

    unsigned hashCode() const;

    static unsigned hashCode(const char *chars, unsigned size);

    bool isEqualTo(const Literal *other) const;

private:

    char *_chars;

    unsigned _size;

    unsigned _hashCode;

public:

    // ### private

    unsigned _index;

    Literal *_next;

};

class CPLUSPLUS_EXPORT StringLiteral: public Literal

{

public:

    StringLiteral(const char *chars, unsigned size);

    virtual ~StringLiteral();

};

class CPLUSPLUS_EXPORT NumericLiteral: public Literal

{

public:

    NumericLiteral(const char *chars, unsigned size);

    virtual ~NumericLiteral();

    bool isChar() const;

    bool isWideChar() const;

    bool isInt() const;

    bool isFloat() const;

    bool isDouble() const;

    bool isLongDouble() const;

    bool isLong() const;

    bool isLongLong() const;

    bool isUnsigned() const;

    bool isHex() const;

private:

    struct Flags {

        unsigned _type      : 8;

        unsigned _isHex     : 1;

        unsigned _isUnsigned: 1;

    };

    union {

        unsigned _flags;

        Flags f;

    };

};

class CPLUSPLUS_EXPORT Identifier: public Literal

{

public:

    Identifier(const char *chars, unsigned size);

    virtual ~Identifier();

};

} // end of namespace CPlusPlus

#endif // CPLUSPLUS_LITERALS_H