/* vim: set ts=4 sw=4 tw=99 et:

 *

 * Copyright (C) 2012 David Anderson

 *

 * This file is part of JITCraft.

 *

 * JITCraft 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 3 of the License, or (at your option)

 * any later version.

 * 

 * Foobar 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

 * JITCraft. If not, see http://www.gnu.org/licenses/.

 */

#ifndef _include_jitcraft_string_h_

#define _include_jitcraft_string_h_

#include "Heap.h"

namespace ke {

// A fixed-length string containing UTF-8 characters.

class String : public Object

{

    uint32 length_;

  public:

    static String *New(Zone *zone, const char *from, Heap::Tenure tenure = Heap::Tenure_Default);

    static String *New(Zone *zone, const char *from, size_t length, Heap::Tenure tenure = Heap::Tenure_Default);

    unsigned length() {

        return length_;

    }

    char *chars() {

        return reinterpret_cast<char *>(this + 1);

    }

    char *chars(Zone *zone) {

        return chars();

    }

    size_t objSize() {

        return SizeFor(length());

    }

    static size_t SizeFor(unsigned length) {

        return sizeof(String) + sizeof(char) * (length + 1);

    }

    static inline String *cast(Object *obj) {

        assert(!obj || obj->is(MapKind_String));

        return reinterpret_cast<String *>(obj);

    }

};

class CharsAndLength

{

    const char *str_;

    size_t length_;

  public:

    CharsAndLength(const char *str, size_t length)

        : str_(str),

        length_(length)

    {

    }

    const char *str() const {

        return str_;

    }

    size_t length() const {

        return length_;

    }

};

}

#endif // _include_jitcraft_string_h_