org.antlr.v4.runtime.tree.xpath.XPathWildcardElement Maven / Gradle / Ivy
/*
* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
package org.antlr.v4.runtime.tree.xpath;
import org.antlr.v4.runtime.tree.ParseTree;
import org.antlr.v4.runtime.tree.Tree;
import org.antlr.v4.runtime.tree.Trees;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public class XPathWildcardElement extends XPathElement {
public XPathWildcardElement() {
super(XPath.WILDCARD);
}
@Override
public Collection evaluate(final ParseTree t) {
if ( invert ) return new ArrayList(); // !* is weird but valid (empty)
List kids = new ArrayList();
for (Tree c : Trees.getChildren(t)) {
kids.add((ParseTree)c);
}
return kids;
}
}