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

Go to download

Show more of this group Show more artifacts with this name
Show all versions of antlr4-runtime Show documentation

The ANTLR 4 Runtime

There is a newer version: 4.13.2

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);
	}
}