/**
* Copyright (c) 2012-2016 André Bargull
* Alle Rechte vorbehalten / All Rights Reserved. Use is subject to license terms.
*
* <https://github.com/anba/es6draft>
*/
/**
*
*/
package com.github.anba.es6draft.ast;
/**
* <h1>13 ECMAScript Language: Statements and Declarations</h1><br>
* <h2>13.3 Declarations and the Variable Statement</h2>
* <ul>
* <li>13.3.3 Destructuring Binding Patterns
* </ul>
*/
public final class BindingProperty extends AstNode {
private final PropertyName propertyName;
private final Binding binding;
private final Expression initializer;
public BindingProperty(PropertyName propertyName, Binding binding, Expression initializer) {
super(propertyName.getBeginPosition(), eitherOr(initializer, binding).getEndPosition());
this.propertyName = propertyName;
this.binding = binding;
this.initializer = initializer;
}
public BindingProperty(BindingIdentifier binding, Expression initializer) {
super(binding.getBeginPosition(), eitherOr(initializer, binding).getEndPosition());
this.propertyName = null;
this.binding = binding;
this.initializer = initializer;
}
/**
* Returns the binding property name or {@code null} for <code>SingleNameBinding</code> nodes.
*
* @return the property name or {@code null}
*/
public PropertyName getPropertyName() {
return propertyName;
}
/**
* Returns the target binding.
*
* @return the binding node
*/
public Binding getBinding() {
return binding;
}
/**
* Returns the optional initializer expression.
*
* @return the initializer or {@code null}
*/
public Expression getInitializer() {
return initializer;
}
@Override
public <R, V> R accept(NodeVisitor<R, V> visitor, V value) {
return visitor.visit(this, value);
}
@Override
public <V> int accept(IntNodeVisitor<V> visitor, V value) {
return visitor.visit(this, value);
}
@Override
public <V> void accept(VoidNodeVisitor<V> visitor, V value) {
visitor.visit(this, value);
}
private static AstNode eitherOr(AstNode left, AstNode right) {
return left != null ? left : right;
}
}