/*
* Copyright (C) 2010 Google Inc.
*
* Licensed 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.
*/
package com.google.clearsilver.jsilver.functions.structure;
import com.google.clearsilver.jsilver.data.Data;
import com.google.clearsilver.jsilver.functions.NonEscapingFunction;
import com.google.clearsilver.jsilver.values.Value;
import static com.google.clearsilver.jsilver.values.Value.literalConstant;
import static com.google.clearsilver.jsilver.values.Value.literalValue;
import com.google.clearsilver.jsilver.values.VariableValue;
/**
* Returns the Data variable name for a local variable alias.
*/
public class NameFunction extends NonEscapingFunction {
/**
* @param args A local variable
* @return Name (as string)
*/
public Value execute(Value... args) {
Value value = args[0];
if (value instanceof VariableValue) {
VariableValue variableValue = (VariableValue) value;
Data variable = variableValue.getReference();
if (variable != null) {
return literalValue(variable.getSymlink().getName(), variableValue.getEscapeMode(),
variableValue.isPartiallyEscaped());
}
}
return literalConstant("", value);
}
}