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/*******************************************************************************
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* Copyright (c) 2000, 2007 QNX Software Systems and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* QNX Software Systems - Initial API and implementation
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* Nokia - Refactored into CDI specific implementation of AbstractDebugTextHover
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*******************************************************************************/
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package org.eclipse.cdt.debug.internal.ui.editors;
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import org.eclipse.cdt.debug.core.model.ICStackFrame;
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import org.eclipse.cdt.debug.ui.editors.AbstractDebugTextHover;
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import org.eclipse.core.runtime.IAdaptable;
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import org.eclipse.debug.core.DebugException;
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/**
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* The text hovering support for C/C++ debugger.
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*/
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public class DebugTextHover extends AbstractDebugTextHover {
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/**
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* Returns the evaluation stack frame, or <code>null</code> if none.
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*
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* @return the evaluation stack frame, or <code>null</code> if none
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*/
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protected ICStackFrame getFrame() {
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IAdaptable adaptable = getSelectionAdaptable();
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if (adaptable != null) {
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return (ICStackFrame) adaptable.getAdapter(ICStackFrame.class);
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}
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return null;
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}
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110
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@Override
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protected boolean canEvaluate() {
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ICStackFrame frame = getFrame();
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if (frame != null)
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return frame.canEvaluate();
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return false;
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}
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@Override
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protected String evaluateExpression(String expression) {
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ICStackFrame frame = getFrame();
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String result = null;
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try {
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result = frame.evaluateExpressionToString(expression);
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} catch (DebugException e) {
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// ignore
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}
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return result;
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}
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}
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