#include "../config/pathan_config.h"
/*
 * Copyright (c) 2001, DecisionSoft Limited All rights reserved.
 * Please see LICENSE.TXT for more information.
 */

#include <pathan/functions/FunctionFalse.hpp>
#include <pathan/ATBooleanOrDerived.hpp>
#include <pathan/DynamicContext.hpp>
#include <pathan/internal/factory/DatatypeFactory.hpp>
#include <pathan/dataItem/DataItemSequence.hpp>

const XMLCh FunctionFalse::name[] = {
XERCES_CPP_NAMESPACE_QUALIFIER chLatin_f, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_a, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_l, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_s, XERCES_CPP_NAMESPACE_QUALIFIER chLatin_e, XERCES_CPP_NAMESPACE_QUALIFIER chNull };

/*
 * fn:false() as xs:boolean
 */

FunctionFalse::FunctionFalse(const VectorOfDataItems &args, XPath2MemoryManager* memMgr)
  : ConstantFoldingFunction(name,0, 0, "empty()", args, memMgr)
{
}

Sequence FunctionFalse::collapseTreeInternal(DynamicContext* context, int flags) const
{
	return Sequence(DatatypeFactory::POD2AT::createBoolean(context->getMemoryManager(), false, context),
                  context->getMemoryManager());
}