//
// SqratAllocator: Custom Class Allocation/Deallocation
//
//
// Copyright (c) 2009 Brandon Jones
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
#if !defined(_SCRAT_ALLOCATOR_H_)
#define _SCRAT_ALLOCATOR_H_
#include <squirrel.h>
#include <string.h>
#include "sqratObject.h"
namespace Sqrat {
//
// DefaultAllocator
//
template<class C>
class DefaultAllocator {
public:
static SQInteger New(HSQUIRRELVM vm) {
C* instance = new C();
sq_setinstanceup(vm, 1, instance);
sq_setreleasehook(vm, 1, &Delete);
return 0;
}
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
C* instance = new C(*static_cast<const C*>(value));
sq_setinstanceup(vm, idx, instance);
sq_setreleasehook(vm, idx, &Delete);
return 0;
}
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
C* instance = reinterpret_cast<C*>(ptr);
delete instance;
return 0;
}
};
//
// NoConstructorAllocator
//
class NoConstructor {
public:
static SQInteger New(HSQUIRRELVM) {
return 0;
}
static SQInteger Copy(HSQUIRRELVM, SQInteger, const void*) {
return 0;
}
static SQInteger Delete(SQUserPointer, SQInteger) {
return 0;
}
};
//
// CopyOnly
//
template<class C>
class CopyOnly {
public:
static SQInteger New(HSQUIRRELVM) {
return 0;
}
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
C* instance = new C(*static_cast<const C*>(value));
sq_setinstanceup(vm, idx, instance);
sq_setreleasehook(vm, idx, &Delete);
return 0;
}
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
void* instance = reinterpret_cast<C*>(ptr);
delete instance;
return 0;
}
};
//
// NoCopy
//
template<class C>
class NoCopy {
public:
static SQInteger New(HSQUIRRELVM vm) {
C* instance = new C();
sq_setinstanceup(vm, 1, instance);
sq_setreleasehook(vm, 1, &Delete);
return 0;
}
static SQInteger Copy(HSQUIRRELVM vm, SQInteger idx, const void* value) {
return 0;
}
static SQInteger Delete(SQUserPointer ptr, SQInteger size) {
C* instance = reinterpret_cast<C*>(ptr);
delete instance;
return 0;
}
};
}
#endif
