/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Created on May 15, 2005
*
*/
package org.apache.poi.hssf.record.formula.functions;
import org.apache.poi.hssf.record.formula.eval.ErrorEval;
import org.apache.poi.hssf.record.formula.eval.Eval;
import org.apache.poi.hssf.record.formula.eval.StringEval;
import org.apache.poi.hssf.record.formula.eval.ValueEval;
/**
* @author
*
*/
public class T implements Function {
public Eval evaluate(Eval[] operands, int srcCellRow, short srcCellCol) {
ValueEval retval = null;
switch (operands.length) {
default:
retval = ErrorEval.VALUE_INVALID;
break;
case 1:
if (operands[0] instanceof StringEval
|| operands[0] instanceof ErrorEval) {
retval = (ValueEval) operands[0];
}
else if (operands[0] instanceof ErrorEval) {
retval = StringEval.EMPTY_INSTANCE;
}
}
return retval;
}
}