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/*******************************************************************************
* Copyright (c) 2006, 2013 Wind River Systems, Inc. and others.
*
* 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:
* Markus Schorn - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.ui.callhierarchy;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Set;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.internal.ui.viewsupport.WorkingSetFilterUI;
public class CElementSet {
private Set<ICElement> fSet = new LinkedHashSet<ICElement>();
private int fHashCode;
CElementSet(ICElement[] elements) {
fSet.addAll(Arrays.asList(elements));
fHashCode = 0;
for (int i = 0; i < elements.length; i++) {
fHashCode = 31 * fHashCode + elements[i].hashCode();
}
}
@Override
public int hashCode() {
return fHashCode;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final CElementSet other = (CElementSet) obj;
if (fHashCode != other.fHashCode) {
return false;
}
if (fSet == null) {
if (other.fSet != null) {
return false;
}
} else {
if (fSet.size() != other.fSet.size()) {
return false;
}
for (Iterator<ICElement> iter = fSet.iterator(); iter.hasNext();) {
if (!other.fSet.contains(iter.next())) {
return false;
}
}
}
return true;
}
public boolean isEmpty() {
return fSet.isEmpty();
}
public ICElement[] getElements(WorkingSetFilterUI filter) {
ArrayList<ICElement> result = new ArrayList<ICElement>(fSet.size());
for (Iterator<ICElement> iter = fSet.iterator(); iter.hasNext();) {
ICElement element = iter.next();
if (filter == null || filter.isPartOfWorkingSet(element)) {
result.add(element);
}
}
return result.toArray(new ICElement[result.size()]);
}
}
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