com.sun.tools.xjc.reader.gbind.OneOrMore Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.tools.xjc.reader.gbind;
/**
* {@link Expression} that represents kleene-star operation (A+)
*
* @author Kohsuke Kawaguchi
*/
public final class OneOrMore extends Expression {
/**
* 'A' of 'A+'.
*/
private final Expression child;
public OneOrMore(Expression child) {
this.child = child;
}
ElementSet lastSet() {
return child.lastSet();
}
boolean isNullable() {
return child.isNullable();
}
void buildDAG(ElementSet incoming) {
child.buildDAG(ElementSets.union(incoming,child.lastSet()));
}
public String toString() {
return child.toString()+'+';
}
}