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/* vim:set et ts=4 sts=4:
*
* libpyzy - The Chinese PinYin and Bopomofo conversion library.
*
* Copyright (c) 2008-2010 Peng Huang <shawn.p.huang@gmail.com>
*
* This library 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 2.1 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
* Lesser 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifndef __PYZY_VARIANT_H_
#define __PYZY_VARIANT_H_
namespace PyZy {
/**
* \brief Variant class to handle various type of value.
*/
class Variant {
public:
/**
* \brief The type contained in the variant.
*/
enum Type {
/** null */
TYPE_NULL,
/** boolean value */
TYPE_BOOL,
/** unsigned int value */
TYPE_UNSIGNED_INT,
};
/**
* \brief Creates a Variant object from the argument.
* @param value boolean value.
* @return Variant object.
*/
static Variant fromBool (bool value);
/**
* \brief Creates a Variant object from the argument.
* @param value unsigned int value.
* @return Variant object.
*/
static Variant fromUnsignedInt (unsigned int value);
/**
* \brief Creates a null Variant object.
* @return Variant object.
*/
static Variant nullVariant (void);
/**
* \brief Gets a type of the contained value.
* @return type of the contained value.
* @see Type
*/
Type getType (void) const;
/**
* \brief Gets a value as bool.
* @return value of the variant as bool.
*
* This method doesn't check the type.
*/
bool getBool (void) const;
/**
* \brief Gets a value as unsigned int.
* @return value of the variant as bool.
*
* This method doesn't check the type.
*/
unsigned int getUnsignedInt (void) const;
private:
Variant();
Type m_type;
union {
bool bool_value;
unsigned int unsigned_int_value;
} m_value;
};
} // namespace PyZy
#endif
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