| /******************************************************************************* |
| * Copyright (c) 2010, 2018 Willink Transformations and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * E.D.Willink - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ocl.xtext.base.scoping; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.jdt.annotation.NonNull; |
| import org.eclipse.ocl.pivot.internal.utilities.EnvironmentFactoryInternal; |
| import org.eclipse.ocl.pivot.utilities.TracingOption; |
| import org.eclipse.ocl.xtext.base.cs2as.CS2AS; |
| import org.eclipse.ocl.xtext.base.utilities.BaseCSResource; |
| import org.eclipse.ocl.xtext.basecs.ElementCS; |
| import org.eclipse.xtext.scoping.IScope; |
| import org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider; |
| |
| /** |
| * This class contains custom scoping description. |
| * |
| * see : http://www.eclipse.org/Xtext/documentation/latest/xtext.html#scoping on |
| * how and when to use it |
| * |
| */ |
| public class BaseScopeProvider extends AbstractDeclarativeScopeProvider |
| { |
| public static final @NonNull TracingOption LOOKUP = new TracingOption("org.eclipse.ocl.xtext.base", "lookup"); //$NON-NLS-1$//$NON-NLS-2$ |
| |
| @Override |
| public IScope getScope(EObject context, EReference reference) { |
| if (reference == null) { |
| return IScope.NULLSCOPE; |
| } |
| if (!(context instanceof ElementCS)) { |
| return IScope.NULLSCOPE; |
| } |
| Resource csResource = context.eResource(); |
| if (!(csResource instanceof BaseCSResource)) { |
| return IScope.NULLSCOPE; |
| } |
| CS2AS cs2as = ((BaseCSResource)csResource).getCS2AS(); |
| EnvironmentFactoryInternal environmentFactory = cs2as.getEnvironmentFactory(); |
| return BaseScopeView.getScopeView(environmentFactory, (ElementCS) context, reference); |
| } |
| } |