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/*
* This file is part of the KDE libraries
* Copyright (C) 2003 Apple Computer, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef KJS_IDENTIFIER_H
#define KJS_IDENTIFIER_H
#include "ustring.h"
namespace KJS {
/**
* Represents an Identifier for a Javascript object.
*/
class KJS_EXPORT Identifier {
friend class PropertyMap;
public:
/**
* Creates an empty identifier
*/
Identifier() { }
/**
* Creates an identifier with the name of the string
* @code
* KJS::Identifier method("someJSMethod");
* @endcode
*/
Identifier(const char *s) : _ustring(add(s)) { }
Identifier(const UChar *s, int length) : _ustring(add(s, length)) { }
explicit Identifier(const UString &s) : _ustring(add(s.rep)) { }
/**
* returns a UString of the identifier
*/
const UString &ustring() const { return _ustring; }
DOM::DOMString string() const;
/**
* returns a QString of the identifier
*/
QString qstring() const;
/**
* returns a UChar pointer to the string of the identifier with a size defined by @ref size().
*/
const UChar *data() const { return _ustring.data(); }
/**
* The size of the UChar string returned.
*/
int size() const { return _ustring.size(); }
/**
* Char * of the identifier's string.
*/
const char *ascii() const { return _ustring.ascii(); }
static Identifier from(unsigned y) { return Identifier(UString::from(y)); }
/**
* Returns the identfiers state of being unset.
*/
bool isNull() const { return _ustring.isNull(); }
/**
* Returns that the identifiers string is set, but is empty.
*/
bool isEmpty() const { return _ustring.isEmpty(); }
unsigned long toULong(bool *ok) const { return _ustring.toULong(ok); }
unsigned toStrictUInt32(bool *ok) const { return _ustring.toStrictUInt32(ok); }
unsigned toArrayIndex(bool *ok) const { return _ustring.toArrayIndex(ok); }
double toDouble() const { return _ustring.toDouble(); }
/**
* Creates an empty Identifier
*/
static const Identifier &null();
friend bool operator==(const Identifier &, const Identifier &);
friend bool operator!=(const Identifier &, const Identifier &);
friend bool operator==(const Identifier &, const char *);
static void remove(UString::Rep *);
private:
UString _ustring;
static bool equal(UString::Rep *, const char *);
static bool equal(UString::Rep *, const UChar *, int length);
static bool equal(UString::Rep *, UString::Rep *);
static bool equal(const Identifier &a, const Identifier &b)
{ return a._ustring.rep == b._ustring.rep; }
static bool equal(const Identifier &a, const char *b)
{ return equal(a._ustring.rep, b); }
static UString::Rep *add(const char *);
static UString::Rep *add(const UChar *, int length);
static UString::Rep *add(UString::Rep *);
static void insert(UString::Rep *);
static void rehash(int newTableSize);
static void expand();
static void shrink();
// TODO: move into .cpp file
static UString::Rep **_table;
static int _tableSize;
static int _tableSizeMask;
static int _keyCount;
};
inline bool operator==(const Identifier &a, const Identifier &b)
{ return Identifier::equal(a, b); }
inline bool operator!=(const Identifier &a, const Identifier &b)
{ return !Identifier::equal(a, b); }
inline bool operator==(const Identifier &a, const char *b)
{ return Identifier::equal(a, b); }
KJS_EXPORT extern const Identifier argumentsPropertyName;
KJS_EXPORT extern const Identifier calleePropertyName;
KJS_EXPORT extern const Identifier callerPropertyName;
KJS_EXPORT extern const Identifier constructorPropertyName;
KJS_EXPORT extern const Identifier lengthPropertyName;
KJS_EXPORT extern const Identifier messagePropertyName;
KJS_EXPORT extern const Identifier namePropertyName;
KJS_EXPORT extern const Identifier prototypePropertyName;
KJS_EXPORT extern const Identifier specialPrototypePropertyName;
KJS_EXPORT extern const Identifier toLocaleStringPropertyName;
KJS_EXPORT extern const Identifier toStringPropertyName;
KJS_EXPORT extern const Identifier valueOfPropertyName;
}
#endif
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