manifold.preprocessor.expression.Identifier Maven / Gradle / Ivy
/*
* Copyright (c) 2019 - Manifold Systems LLC
*
* 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 manifold.preprocessor.expression;
import manifold.preprocessor.definitions.Definitions;
public class Identifier extends TerminalExpression
{
private final String _name;
Identifier( String name, int start, int end )
{
super( start, end );
_name = name;
}
@Override
public boolean evaluate( Definitions definitions )
{
return definitions.isDefined( _name );
}
public String getName()
{
return _name;
}
@Override
public String getValue( Definitions definitions )
{
String value = definitions.getValue( _name );
return value == null ? "" : value;
}
public String toString()
{
return _name;
}
}