/*******************************************************************************
* Copyright (c) 2008, 2009 Wind River Systems, Inc. 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:
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.pdom.dom;
import org.eclipse.cdt.internal.core.pdom.db.IBTreeVisitor;
import org.eclipse.cdt.internal.core.pdom.db.IString;
import org.eclipse.core.runtime.CoreException;
/**
* Visitor to find a macro container in a BTree.
*/
public final class MacroContainerFinder implements IBTreeVisitor {
private final PDOMLinkage fLinkage;
private final char[] fName;
private PDOMMacroContainer fMacroContainer;
/**
* Collects all nodes with given name, passing the filter. If prefixLookup is set to
* <code>true</code> a binding is considered if its name starts with the given prefix.
*/
public MacroContainerFinder(PDOMLinkage linkage, char[] name) {
fName= name;
fLinkage= linkage;
}
final public int compare(long record) throws CoreException {
IString name= PDOMNamedNode.getDBName(fLinkage.getDB(), record);
return compare(name);
}
private int compare(IString rhsName) throws CoreException {
return rhsName.compareCompatibleWithIgnoreCase(fName);
}
final public boolean visit(long record) throws CoreException {
if (record == 0)
return true;
fMacroContainer= new PDOMMacroContainer(fLinkage, record);
return false; // we are done.
}
final public PDOMMacroContainer getMacroContainer() {
return fMacroContainer;
}
}