godot/core/ref_ptr.cpp
2014-02-09 22:10:30 -03:00

98 lines
3.6 KiB
C++

/*************************************************************************/
/* ref_ptr.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/*************************************************************************/
#include "ref_ptr.h"
#include "reference.h"
#include "resource.h"
void RefPtr::operator=(const RefPtr& p_other) {
Ref<Reference> *ref = reinterpret_cast<Ref<Reference>*>( &data[0] );
Ref<Reference> *ref_other = reinterpret_cast<Ref<Reference>*>( const_cast<char*>(&p_other.data[0]) );
*ref = *ref_other;
}
bool RefPtr::operator==(const RefPtr& p_other) const {
Ref<Reference> *ref = reinterpret_cast<Ref<Reference>*>( &data[0] );
Ref<Reference> *ref_other = reinterpret_cast<Ref<Reference>*>( const_cast<char*>(&p_other.data[0]) );
return *ref == *ref_other;
}
RefPtr::RefPtr(const RefPtr& p_other) {
memnew_placement(&data[0],Ref<Reference>);
Ref<Reference> *ref = reinterpret_cast<Ref<Reference>*>( &data[0] );
Ref<Reference> *ref_other = reinterpret_cast<Ref<Reference>*>( const_cast<char*>(&p_other.data[0]) );
*ref = *ref_other;
}
bool RefPtr::is_null() const {
Ref<Reference> *ref = reinterpret_cast<Ref<Reference>*>( &data[0] );
return ref->is_null();
}
RID RefPtr::get_rid() const {
Ref<Reference> *ref = reinterpret_cast<Ref<Reference>*>( &data[0] );
if (ref->is_null())
return RID();
Resource *res = (*ref)->cast_to<Resource>();
if (res)
return res->get_rid();
return RID();
}
void RefPtr::unref() {
Ref<Reference> *ref = reinterpret_cast<Ref<Reference>*>( &data[0] );
ref->unref();
}
RefPtr::RefPtr() {
ERR_FAIL_COND(sizeof(Ref<Reference>)>DATASIZE);
memnew_placement(&data[0],Ref<Reference>);
}
RefPtr::~RefPtr() {
Ref<Reference> *ref = reinterpret_cast<Ref<Reference>*>( &data[0] );
ref->~Ref<Reference>();
}