/**
 *                                                                            
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * 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:
 *         Florian Pirchner - Initial implementation
 *   
 *  This copyright notice shows up in the generated Java code
 *
 */
 
package org.eclipse.osbp.xtext.oxtype.scoping.jvmtype

import java.util.List
import org.eclipse.xtext.common.types.JvmPrimitiveType
import org.eclipse.xtext.common.types.JvmType
import org.eclipse.xtext.common.types.JvmVoid
import org.eclipse.xtext.common.types.access.impl.Primitives
import org.eclipse.xtext.common.types.xtext.AbstractTypeScope
import org.eclipse.xtext.naming.QualifiedName
import org.eclipse.xtext.resource.EObjectDescription
import org.eclipse.xtext.resource.IEObjectDescription

class PrimitiveAwareScope extends AbstractOXTypeTypeScope {

	private AbstractTypeScope typeScope;
	private AbstractOXTypeTypeScope parent;

	new(AbstractOXTypeTypeScope parent, AbstractTypeScope typeScope) {
		this.parent = parent;
		this.typeScope = typeScope;
	}

	override IEObjectDescription getSingleElement(QualifiedName name) {
		if (isPrimitive(name)) {
			return typeScope.getSingleElement(name, true);
		}
		return parent.getSingleElement(name);
	}

	def boolean isPrimitive(QualifiedName name) {
		return name.getSegmentCount() == 1 && Primitives.forName(name.getFirstSegment()) != null;
	}

	override void doGetElements(JvmType type, List<IEObjectDescription> result) {
		if (type instanceof JvmVoid) {
			result.add(EObjectDescription.create("void", type));
			return;
		}
		if (type instanceof JvmPrimitiveType) {
			result.add(EObjectDescription.create((type as JvmPrimitiveType).getSimpleName(), type));
			return;
		}
		parent.doGetElements(type, result);
	}

}