/*
* Copyright 2003-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.generator.impl.query;
import jetbrains.mps.generator.impl.GenerationFailureException;
import jetbrains.mps.generator.template.WeavingMappingRuleContext;
import org.jetbrains.mps.openapi.model.SNode;
/**
* Queries associated with a weaving rule
* @author Artem Tikhomirov
*/
public interface WeaveRuleQuery extends Query {
/**
* Mandatory query of a rule that gives node in output model that would serve as parent for weaved nodes
* @param ctx environment for the query, never <code>null</code>
* @return parent node in output model for nodes being weaved into
*/
SNode contextNode(WeavingMappingRuleContext ctx) throws GenerationFailureException;
}