/**
 *
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 **/
package lucee.transformer.cfml.evaluator;

import lucee.transformer.bytecode.statement.tag.Tag;
import lucee.transformer.bytecode.util.ASMUtil;
import lucee.transformer.library.tag.TagLibTag;

/**
 * checks the if a child tag is inside his parent
 */
public class ChildEvaluator extends EvaluatorSupport {

    private final String parentName;

    public ChildEvaluator(String parentName) {
	this.parentName = parentName;
    }

    @Override
    public void evaluate(Tag tag, TagLibTag libTag) throws EvaluatorException {

	// check parent
	String ns = libTag.getTagLib().getNameSpaceAndSeparator();
	String name = ns + parentName;

	if (!ASMUtil.hasAncestorTag(tag, name)) throw new EvaluatorException("Wrong Context, tag " + libTag.getFullName() + " must be inside a " + name + " tag");

    }

}