/*
 * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */


#include "PointerToMemberValueNode.h"

#include <new>

#include "Architecture.h"
#include "IntegerValue.h"
#include "Tracing.h"
#include "Type.h"
#include "ValueLoader.h"
#include "ValueLocation.h"


PointerToMemberValueNode::PointerToMemberValueNode(ValueNodeChild* nodeChild,
        PointerToMemberType* type)
        :
        ChildlessValueNode(nodeChild),
        fType(type)
{
        fType->AcquireReference();
}


PointerToMemberValueNode::~PointerToMemberValueNode()
{
        fType->ReleaseReference();
}


Type*
PointerToMemberValueNode::GetType() const
{
        return fType;
}


status_t
PointerToMemberValueNode::ResolvedLocationAndValue(ValueLoader* valueLoader,
        ValueLocation*& _location, Value*& _value)
{
        // get the location
        ValueLocation* location = NodeChild()->Location();
        if (location == NULL)
                return B_BAD_VALUE;

        TRACE_LOCALS("  TYPE_POINTER_TO_MEMBER\n");

        // get the value type
        type_code valueType;
        if (valueLoader->GetArchitecture()->AddressSize() == 4) {
                valueType = B_UINT32_TYPE;
                TRACE_LOCALS("    -> 32 bit\n");
        } else {
                valueType = B_UINT64_TYPE;
                TRACE_LOCALS("    -> 64 bit\n");
        }

        // load the value data
        BVariant valueData;
        status_t error = valueLoader->LoadValue(location, valueType, false,
                valueData);
        if (error != B_OK)
                return error;

        // create the type object
        Value* value = new(std::nothrow) IntegerValue(valueData);
        if (value == NULL)
                return B_NO_MEMORY;

        location->AcquireReference();
        _location = location;
        _value = value;
        return B_OK;
}