/*******************************************************************************
* 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.instructions;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.DebugException;
import org.eclipse.jdt.debug.core.IJavaObject;
import org.eclipse.jdt.debug.core.IJavaPrimitiveValue;
import org.eclipse.jdt.debug.core.IJavaValue;
import org.eclipse.jdt.internal.debug.core.model.JDINullValue;
public class PlusOperator extends BinaryOperator {
public static final String NULL = "null"; //$NON-NLS-1$
public static final String TOSTRING_SELECTOR = "toString"; //$NON-NLS-1$
public static final String TOSTRING_SIGNATURE = "()Ljava/lang/String;"; //$NON-NLS-1$
public PlusOperator(int resultId, int leftTypeId, int rightTypeId, int start) {
this(resultId, leftTypeId, rightTypeId, false, start);
}
protected PlusOperator(int resultId, int leftTypeId, int rightTypeId,
boolean isAssignmentOperator, int start) {
super(resultId, leftTypeId, rightTypeId, isAssignmentOperator, start);
}
private String getString(IJavaValue value, int typeId)
throws DebugException {
// test if value == null
if (value instanceof JDINullValue) {
return NULL;
}
if (value instanceof IJavaObject) {
if (typeId == T_String) {
return value.getValueString();
}
return ((IJavaObject) value).sendMessage(TOSTRING_SELECTOR,
TOSTRING_SIGNATURE, null, getContext().getThread(), null)
.getValueString();
}
IJavaPrimitiveValue primitiveValue = (IJavaPrimitiveValue) value;
switch (typeId) {
case T_boolean:
return Boolean.valueOf(primitiveValue.getBooleanValue()).toString();
case T_byte:
return new Integer(primitiveValue.getByteValue()).toString();
case T_char:
return new Character(primitiveValue.getCharValue()).toString();
case T_double:
return new Double(primitiveValue.getDoubleValue()).toString();
case T_float:
return new Float(primitiveValue.getFloatValue()).toString();
case T_int:
return new Integer(primitiveValue.getIntValue()).toString();
case T_long:
return new Long(primitiveValue.getLongValue()).toString();
case T_short:
return new Integer(primitiveValue.getShortValue()).toString();
}
return NULL;
}
/*
* @see BinaryOperator#getBooleanResult(IJavaValue, IJavaValue)
*/
@Override
protected boolean getBooleanResult(IJavaValue leftOperand,
IJavaValue rightOperand) {
return false;
}
/*
* @see BinaryOperator#getDoubleResult(IJavaValue, IJavaValue)
*/
@Override
protected double getDoubleResult(IJavaValue leftOperand,
IJavaValue rightOperand) {
return ((IJavaPrimitiveValue) leftOperand).getDoubleValue()
+ ((IJavaPrimitiveValue) rightOperand).getDoubleValue();
}
/*
* @see BinaryOperator#getFloatResult(IJavaValue, IJavaValue)
*/
@Override
protected float getFloatResult(IJavaValue leftOperand,
IJavaValue rightOperand) {
return ((IJavaPrimitiveValue) leftOperand).getFloatValue()
+ ((IJavaPrimitiveValue) rightOperand).getFloatValue();
}
/*
* @see BinaryOperator#getIntResult(IJavaValue, IJavaValue)
*/
@Override
protected int getIntResult(IJavaValue leftOperand, IJavaValue rightOperand) {
return ((IJavaPrimitiveValue) leftOperand).getIntValue()
+ ((IJavaPrimitiveValue) rightOperand).getIntValue();
}
/*
* @see BinaryOperator#getLongResult(IJavaValue, IJavaValue)
*/
@Override
protected long getLongResult(IJavaValue leftOperand, IJavaValue rightOperand) {
return ((IJavaPrimitiveValue) leftOperand).getLongValue()
+ ((IJavaPrimitiveValue) rightOperand).getLongValue();
}
/*
* @see BinaryOperator#getStringResult(IJavaValue, IJavaValue)
*/
@Override
protected String getStringResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
return getString(leftOperand, fLeftTypeId)
+ getString(rightOperand, fRightTypeId);
}
@Override
public String toString() {
return InstructionsEvaluationMessages.PlusOperator______operator_2;
}
}