/* vim: set ts=4 sw=4 tw=99 et:
 *
 * Copyright (C) 2012 David Anderson
 *
 * This file is part of SourcePawn.
 *
 * SourcePawn is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 * 
 * SourcePawn 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * SourcePawn. If not, see http://www.gnu.org/licenses/.
 */
#include "Reference.h"
#include "Zone.h"
#include "Array.h"
#include "Structures.h"
#include "Heap-inl.h"

using namespace ke;

Reference *
Reference::NewStack(Zone *zone, void *location, Heap::Tenure tenure)
{
    Local<Reference> ref(zone, Reference::cast(zone->allocate(MapKind_Reference, sizeof(Reference), tenure)));
    if (!ref)
        return NULL;

    ref->location_ = location;
    ref->base_ = NULL;
    return ref;
}

Reference *
Reference::NewStack(Zone *zone, const LocalSlot &slot, Heap::Tenure tenure)
{
    Local<Reference> ref(zone, Reference::cast(zone->allocate(MapKind_Reference, sizeof(Reference), tenure)));
    if (!ref)
        return NULL;

    ref->location_ = &ref->slot_;
    ref->slot_ = slot;
    ref->base_ = NULL;
    return ref;
}

Reference *
Reference::NewField(Zone *zone, Handle<Struct> obj, size_t index, Heap::Tenure tenure)
{
    Local<Reference> ref(zone, Reference::cast(zone->allocate(MapKind_Reference, sizeof(Reference), tenure)));
    if (!ref)
        return NULL;

    Descriptor *desc = Descriptor::cast(obj->map()->type()->fields()->at(index));
    ref->location_ = obj->ref(desc);
    ref->base_ = obj;
    return ref;
}