/*******************************************************************************
* Copyright (c) 2000, 2011 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.jdt.internal.debug.eval.ast.engine;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.debug.core.IJavaArray;
import org.eclipse.jdt.debug.core.IJavaDebugTarget;
import org.eclipse.jdt.debug.core.IJavaObject;
import org.eclipse.jdt.debug.core.IJavaReferenceType;
import org.eclipse.jdt.debug.core.IJavaThread;
import org.eclipse.jdt.debug.core.IJavaType;
import org.eclipse.jdt.debug.core.IJavaVariable;
import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin;
import org.eclipse.jdt.internal.debug.core.logicalstructures.JDIPlaceholderVariable;
/**
* Context for evaluation of an expression in the receiver context of an array.
*/
public class ArrayRuntimeContext extends AbstractRuntimeContext {
/**
* Name used for temp variable referring to array (replaces 'this'). The
* same length as "this" so it does not affect code assist.
*/
public static String ARRAY_THIS_VARIABLE = "_a_t"; //$NON-NLS-1$
private IJavaArray fArray = null;
private IJavaReferenceType fReceivingType = null;
private IJavaThread fThread = null;
private IJavaVariable fLocalArray = null;
public ArrayRuntimeContext(IJavaArray arrayObject, IJavaThread thread,
IJavaProject project) {
super(project);
fArray = arrayObject;
fThread = thread;
fLocalArray = new JDIPlaceholderVariable(ARRAY_THIS_VARIABLE,
arrayObject);
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jdt.internal.debug.eval.ast.engine.IRuntimeContext#getVM()
*/
public IJavaDebugTarget getVM() {
return (IJavaDebugTarget) fArray.getDebugTarget();
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jdt.internal.debug.eval.ast.engine.IRuntimeContext#getThis()
*/
public IJavaObject getThis() throws CoreException {
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jdt.internal.debug.eval.ast.engine.IRuntimeContext#
* getReceivingType()
*/
public IJavaReferenceType getReceivingType() throws CoreException {
if (fReceivingType == null) {
IJavaType[] javaTypes = getVM().getJavaTypes("java.lang.Object"); //$NON-NLS-1$
if (javaTypes.length > 0) {
fReceivingType = (IJavaReferenceType) javaTypes[0];
} else {
IStatus status = new Status(IStatus.ERROR,
JDIDebugPlugin.getUniqueIdentifier(),
JDIDebugPlugin.INTERNAL_ERROR,
EvaluationEngineMessages.ArrayRuntimeContext_0, null);
throw new CoreException(status);
}
}
return fReceivingType;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jdt.internal.debug.eval.ast.engine.IRuntimeContext#getLocals
* ()
*/
public IJavaVariable[] getLocals() throws CoreException {
return new IJavaVariable[] { fLocalArray };
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jdt.internal.debug.eval.ast.engine.IRuntimeContext#getThread
* ()
*/
public IJavaThread getThread() {
return fThread;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jdt.internal.debug.eval.ast.engine.IRuntimeContext#isConstructor
* ()
*/
public boolean isConstructor() throws CoreException {
return false;
}
}