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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.model.elements;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.debug.core.model.IErrorReportingExpression;
import org.eclipse.debug.core.model.IExpression;
import org.eclipse.debug.core.model.IValue;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
/**
* @since 3.3
*/
public class ExpressionContentProvider extends VariableContentProvider {
protected Object[] getAllChildren(Object parent, IPresentationContext context) throws CoreException {
if (parent instanceof IErrorReportingExpression) {
IErrorReportingExpression expression = (IErrorReportingExpression) parent;
if (expression.hasErrors()) {
return expression.getErrorMessages();
}
}
if (parent instanceof IExpression) {
IExpression expression = (IExpression) parent;
IValue value = expression.getValue();
if (value != null) {
return getValueChildren(expression, value, context);
}
}
return EMPTY;
}
protected boolean hasChildren(Object element, IPresentationContext context, IProgressMonitor monitor) throws CoreException {
if (element instanceof IErrorReportingExpression) {
IErrorReportingExpression expression = (IErrorReportingExpression) element;
if (expression.hasErrors()) {
return true;
}
}
return ((IExpression)element).getValue().hasVariables();
}
}
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