com.strobel.expressions.LabelExpression Maven / Gradle / Ivy
/*
* LabelExpression.java
*
* Copyright (c) 2012 Mike Strobel
*
* This source code is based on the Dynamic Language Runtime from Microsoft,
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0.
* A copy of the license can be found in the License.html file at the root of this distribution.
* By using this source code in any fashion, you are agreeing to be bound by the terms of the
* Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*/
package com.strobel.expressions;
import com.strobel.reflection.Type;
/**
* @author Mike Strobel
*/
public final class LabelExpression extends Expression {
private final Expression _defaultValue;
private final LabelTarget _target;
public LabelExpression(final LabelTarget target, final Expression defaultValue) {
_target = target;
_defaultValue = defaultValue;
}
public final Expression getDefaultValue() {
return _defaultValue;
}
public final LabelTarget getTarget() {
return _target;
}
@Override
public final ExpressionType getNodeType() {
return ExpressionType.Label;
}
@Override
public final Type getType() {
return _target.getType();
}
@Override
protected final Expression accept(final ExpressionVisitor visitor) {
return visitor.visitLabel(this);
}
public final LabelExpression update(final LabelTarget target, final Expression defaultValue) {
if (target == _target && defaultValue == _defaultValue) {
return this;
}
return label(target, defaultValue);
}
}