| /******************************************************************************* |
| * Copyright (c) 2000, 2017 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.instructions; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jdt.debug.core.IJavaObject; |
| import org.eclipse.jdt.debug.core.IJavaValue; |
| import org.eclipse.jdt.debug.core.IJavaVariable; |
| import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin; |
| import org.eclipse.osgi.util.NLS; |
| |
| /** |
| * Sends an message to an instance. The arguments are on the stack in reverse |
| * order, followed by the receiver. Pushes the result, if any, onto the stack |
| */ |
| public class SendMessage extends CompoundInstruction { |
| |
| private int fArgCount; |
| private String fSelector; |
| private String fSignature; |
| private String fDeclaringType; |
| |
| public SendMessage(String selector, String signature, int argCount, |
| String declaringType, int start) { |
| super(start); |
| fArgCount = argCount; |
| fSelector = selector; |
| fSignature = signature; |
| fDeclaringType = declaringType; |
| } |
| |
| @Override |
| public void execute() throws CoreException { |
| IJavaValue[] args = new IJavaValue[fArgCount]; |
| // args are in reverse order |
| for (int i = fArgCount - 1; i >= 0; i--) { |
| Object popValue = popValue(); |
| if ((popValue instanceof IJavaValue)) |
| args[i] = (IJavaValue) popValue; |
| } |
| Object receiver = pop(); |
| IJavaValue result = null; |
| |
| if (receiver instanceof IJavaVariable) { |
| receiver = ((IJavaVariable) receiver).getValue(); |
| } |
| |
| if (receiver instanceof IJavaObject) { |
| result = ((IJavaObject) receiver).sendMessage(fSelector, |
| fSignature, args, getContext().getThread(), fDeclaringType); |
| } else { |
| throw new CoreException( |
| new Status( |
| IStatus.ERROR, |
| JDIDebugPlugin.getUniqueIdentifier(), |
| IStatus.OK, |
| InstructionsEvaluationMessages.SendMessage_Attempt_to_send_a_message_to_a_non_object_value_1, |
| null)); |
| } |
| setLastValue(result); |
| if (!fSignature.endsWith(")V")) { //$NON-NLS-1$ |
| // only push the result if not a void method |
| push(result); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return NLS.bind(InstructionsEvaluationMessages.SendMessage_send_message__0___1__2, |
| new String[] { fSelector, fSignature }); |
| } |
| } |