org.antlr.v4.runtime.tree.xpath.XPathWildcardAnywhereElement Maven / Gradle / Ivy

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package org.antlr.v4.runtime.tree.xpath;

import org.antlr.v4.runtime.tree.ParseTree;
import org.antlr.v4.runtime.tree.Trees;

import java.util.ArrayList;
import java.util.Collection;

public class XPathWildcardAnywhereElement extends XPathElement {
	public XPathWildcardAnywhereElement() {
		super(XPath.WILDCARD);
	}

	@Override
	public Collection evaluate(ParseTree t) {
		if ( invert ) return new ArrayList(); // !* is weird but valid (empty)
		return Trees.getDescendants(t);
	}
}