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/**
*
* 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 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Florian Pirchner - Initial implementation
*
* This copyright notice shows up in the generated Java code
*
*/
package org.eclipse.osbp.xtext.oxtype.scoping.jvmtype
import com.google.common.collect.Maps
import java.util.Collections
import java.util.List
import java.util.Map
import org.eclipse.xtext.common.types.JvmType
import org.eclipse.xtext.naming.QualifiedName
import org.eclipse.xtext.resource.IEObjectDescription
class CachingTypeScope extends AbstractOXTypeTypeScope {
private final AbstractOXTypeTypeScope parent;
private final Map<QualifiedName, IEObjectDescription> cache;
new(AbstractOXTypeTypeScope parent) {
this.parent = parent;
this.cache = Maps.newHashMapWithExpectedSize(50);
}
override IEObjectDescription getSingleElement(QualifiedName name) {
var IEObjectDescription cached = cache.get(name);
if (cached == null) {
if (cache.containsKey(name)) {
return null;
}
cached = parent.getSingleElement(name);
cache.put(name, cached);
}
return cached;
}
override Iterable<IEObjectDescription> getElements(QualifiedName name) {
var IEObjectDescription element = getSingleElement(name);
if (element == null)
return Collections.emptyList();
return Collections.singletonList(element);
}
override void doGetElements(JvmType type, List<IEObjectDescription> result) {
parent.doGetElements(type, result);
}
}
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