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/* Cydia - iPhone UIKit Front-End for Debian APT
* Copyright (C) 2008-2012 Jay Freeman (saurik)
*/
/* Modified BSD License {{{ */
/*
* Redistribution and use in source and binary
* forms, with or without modification, are permitted
* provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the
* above copyright notice, this list of conditions
* and the following disclaimer.
* 2. Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions
* and the following disclaimer in the documentation
* and/or other materials provided with the
* distribution.
* 3. The name of the author may not be used to endorse
* or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* }}} */
#ifndef Menes_ObjectHandle_H
#define Menes_ObjectHandle_H
#include "CyteKit/UCPlatform.h"
#include <CoreFoundation/CoreFoundation.h>
#include <Foundation/Foundation.h>
template <typename Type_, unsigned Delegate_>
struct MenesObjectHandle_;
template <typename Type_>
struct MenesObjectHandle_<Type_, 0> {
static _finline void Execute(Type_ *value) {
}
};
template <typename Type_>
struct MenesObjectHandle_<Type_, 1> {
static _finline void Execute(Type_ *value) {
[value setDelegate:nil];
}
};
template <typename Type_>
struct MenesObjectHandle_<Type_, 2> {
static _finline void Execute(Type_ *value) {
[value setDelegate:nil];
[value setDataSource:nil];
}
};
template <typename Type_, unsigned Delegate_ = 0>
class MenesObjectHandle {
private:
Type_ *value_;
_finline void Retain_() {
if (value_ != nil)
CFRetain((CFTypeRef) value_);
}
_finline void Release_(Type_ *value) {
if (value != nil) {
MenesObjectHandle_<Type_, Delegate_>::Execute(value);
CFRelease((CFTypeRef) value);
}
}
public:
_finline MenesObjectHandle(const MenesObjectHandle &rhs) :
value_(rhs.value_ == nil ? nil : (Type_ *) CFRetain((CFTypeRef) rhs.value_))
{
}
_finline MenesObjectHandle(Type_ *value = NULL, bool mended = false) :
value_(value)
{
if (!mended)
Retain_();
}
_finline ~MenesObjectHandle() {
Release_(value_);
}
_finline operator Type_ *() const {
return value_;
}
_finline MenesObjectHandle &operator =(Type_ *value) {
if (value_ != value) {
Type_ *old(value_);
value_ = value;
Retain_();
Release_(old);
} return *this;
}
_finline MenesObjectHandle &operator =(const MenesObjectHandle &value) {
return this->operator =(value.operator Type_ *());
}
};
#define _H MenesObjectHandle
#endif//Menes_ObjectHandle_H
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