/*******************************************************************************
* Copyright (c) 2000, 2009 QNX Software Systems 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:
* QNX Software Systems - Initial API and implementation
* Nokia - Refactored into CDI specific implementation of AbstractDebugTextHover
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.editors;
import org.eclipse.cdt.debug.core.model.ICStackFrame;
import org.eclipse.cdt.debug.ui.editors.AbstractDebugTextHover;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.core.DebugException;
/**
* The text hovering support for C/C++ debugger.
*/
public class DebugTextHover extends AbstractDebugTextHover {
/**
* Returns the evaluation stack frame, or <code>null</code> if none.
*
* @return the evaluation stack frame, or <code>null</code> if none
*/
protected ICStackFrame getFrame() {
IAdaptable adaptable = getSelectionAdaptable();
if (adaptable != null) {
return (ICStackFrame) adaptable.getAdapter(ICStackFrame.class);
}
return null;
}
@Override
protected boolean canEvaluate() {
ICStackFrame frame = getFrame();
if (frame != null)
return frame.canEvaluate();
return false;
}
@Override
protected String evaluateExpression(String expression) {
ICStackFrame frame = getFrame();
String result = null;
try {
result = frame.evaluateExpressionToString(expression);
} catch (DebugException e) {
// ignore
}
return result;
}
}