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/*******************************************************************************
* Copyright (c) 2015 Willink Transformations and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* E.D.Willink - initial API and implementation
*******************************************************************************/
package org.eclipse.qvtd.xtext.qvtrelation.scoping;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.ocl.pivot.AnyType;
import org.eclipse.ocl.pivot.Variable;
import org.eclipse.ocl.pivot.internal.scoping.EnvironmentView;
import org.eclipse.ocl.pivot.internal.scoping.ScopeView;
import org.eclipse.ocl.pivot.utilities.PivotUtil;
import org.eclipse.ocl.xtext.base.attributes.PathElementCSAttribution;
import org.eclipse.qvtd.pivot.qvtrelation.Relation;
import org.eclipse.qvtd.xtext.qvtrelationcs.RelationCS;
public class QVTrelationPathElementCSAttribution extends PathElementCSAttribution
{
public static final QVTrelationPathElementCSAttribution INSTANCE = new QVTrelationPathElementCSAttribution();
@Override
public ScopeView computeLookup(@NonNull EObject target, @NonNull EnvironmentView environmentView, @NonNull ScopeView scopeView) {
String name = environmentView.getName();
if ("_".equals(name)) {
for (EObject eObject = target; eObject != null; eObject = eObject.eContainer()) {
if (eObject instanceof RelationCS) {
Relation relation = PivotUtil.getPivot(Relation.class, (RelationCS)eObject);
if (relation != null) {
List<Variable> variables = relation.getVariable();
AnyType oclAnyType = environmentView.getStandardLibrary().getOclAnyType();
String variableName = "_" + variables.size();
Variable asVariable = PivotUtil.createVariable(variableName, oclAnyType, true, null);
asVariable.setIsImplicit(true);
variables.add(asVariable);
environmentView.addElement("_", asVariable);
}
break;
}
}
return null;
}
// else if (name == null) {
// env
// }
return super.computeLookup(target, environmentView, scopeView);
}
}
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