/*

 * Copyright (C) 2012 David Anderson

 *

 * This file is part of JITCraft.

 *

 * JITCraft 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.

 * 

 * Foobar 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

 * JITCraft. If not, see http://www.gnu.org/licenses/.

 */

#include "Types.h"

#include "Zone.h"

#include "Heap-inl.h"

using namespace jc;

Type *

Type::NewPrimitive(Zone *zone, Name *tag)

{

    Object *obj = zone->allocate(MapKind_Type, sizeof(Type), Heap::Tenure_Old);

    if (!obj)

        return NULL;

    Type *type = Type::cast(obj);

    type->kind_ = PRIMITIVE;

    type->tag_ = tag;

    type->contained_ = NULL;

    if (tag && strcmp(tag, "Float") == 0)

        type->primitive_ = PrimitiveType_Float;

    else

        type->primitive_ = PrimitiveType_Int32;

    return type;

}

Type *

Type::NewPrimitive(Zone *zone, PrimitiveType prim)

{

    Object *obj = zone->allocate(MapKind_Type, sizeof(Type), Heap::Tenure_Old);

    if (!obj)

        return NULL;

    Type *type = Type::cast(obj);

    type->kind_ = PRIMITIVE;

    type->tag_ = NULL;

    type->contained_ = NULL;

    type->primitive_ = prim;

    return type;

}

Type *

Type::NewUnsafeArray(Zone *zone, Type *contained, int elements)

{

    Object *obj = zone->allocate(MapKind_Type, sizeof(Type), Heap::Tenure_Old);

    if (!obj)

        return NULL;

    Type *type = Type::cast(obj);

    type->kind_ = ARRAY;

    type->tag_ = NULL;

    type->contained_ = contained;

    type->elements_ = elements;

    if (contained->isPrimitive())

        type->levels_ = 1;

    else

        type->levels_ = contained->levels() + 1;

    return type;

}

Type *

Type::NewReference(Zone *zone, Type *contained)

{

    Object *obj = zone->allocate(MapKind_Type, sizeof(Type), Heap::Tenure_Old);

    if (!obj)

        return NULL;

    Type *type = Type::cast(obj);

    type->kind_ = REFERENCE;

    type->tag_ = NULL;

    type->contained_ = contained;

    return type;

}

Type *

Type::NewFunction(Zone *zone, Type *returnType, FixedArray *parameters)

{

    Object *obj = zone->allocate(MapKind_Type, sizeof(Type), Heap::Tenure_Old);

    if (!obj)

        return NULL;

    Type *type = Type::cast(obj);

    type->kind_ = FUNCTION;

    type->contained_ = returnType;

    type->parameters_ = parameters;

    return type;

}