/*******************************************************************************
* 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.jdt.debug.core.IJavaValue;
import org.eclipse.jdt.debug.core.IJavaVariable;
public abstract class BinaryOperator extends CompoundInstruction {
protected int fResultTypeId;
protected int fLeftTypeId;
protected int fRightTypeId;
protected boolean fIsAssignmentOperator;
protected BinaryOperator(int resultId, int leftTypeId, int rightTypeId,
boolean isAssignementOperator, int start) {
super(start);
fResultTypeId = resultId;
fLeftTypeId = leftTypeId;
fRightTypeId = rightTypeId;
fIsAssignmentOperator = isAssignementOperator;
}
/*
* @see Instruction#execute()
*/
@Override
final public void execute() throws CoreException {
if (fIsAssignmentOperator) {
executeAssignment();
} else {
executeBinary();
}
}
private void executeAssignment() throws CoreException {
IJavaValue value = popValue();
IJavaVariable variable = (IJavaVariable) pop();
IJavaValue variableValue = (IJavaValue) variable.getValue();
switch (fResultTypeId) {
case T_byte:
variableValue = getByteValueResult(variableValue, value);
break;
case T_short:
variableValue = getShortValueResult(variableValue, value);
break;
case T_char:
variableValue = getCharValueResult(variableValue, value);
break;
case T_int:
variableValue = getIntValueResult(variableValue, value);
break;
case T_long:
variableValue = getLongValueResult(variableValue, value);
break;
case T_float:
variableValue = getFloatValueResult(variableValue, value);
break;
case T_double:
variableValue = getDoubleValueResult(variableValue, value);
break;
case T_boolean:
variableValue = getBooleanValueResult(variableValue, value);
break;
case T_String:
variableValue = getStringValueResult(variableValue, value);
break;
}
variable.setValue(variableValue);
push(variableValue);
}
private void executeBinary() throws CoreException {
IJavaValue right = popValue();
IJavaValue left = popValue();
switch (fResultTypeId) {
case T_String:
pushNewValue(getStringResult(left, right));
break;
case T_double:
pushNewValue(getDoubleResult(left, right));
break;
case T_float:
pushNewValue(getFloatResult(left, right));
break;
case T_long:
pushNewValue(getLongResult(left, right));
break;
case T_int:
pushNewValue(getIntResult(left, right));
break;
case T_boolean:
pushNewValue(getBooleanResult(left, right));
break;
}
}
private IJavaValue getByteValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
switch (getInternResultType()) {
case T_double:
return newValue((byte) getDoubleResult(leftOperand, rightOperand));
case T_float:
return newValue((byte) getFloatResult(leftOperand, rightOperand));
case T_long:
return newValue((byte) getLongResult(leftOperand, rightOperand));
case T_int:
return newValue((byte) getIntResult(leftOperand, rightOperand));
default:
return null;
}
}
private IJavaValue getShortValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
switch (getInternResultType()) {
case T_double:
return newValue((short) getDoubleResult(leftOperand, rightOperand));
case T_float:
return newValue((short) getFloatResult(leftOperand, rightOperand));
case T_long:
return newValue((short) getLongResult(leftOperand, rightOperand));
case T_int:
return newValue((short) getIntResult(leftOperand, rightOperand));
default:
return null;
}
}
private IJavaValue getCharValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
switch (getInternResultType()) {
case T_double:
return newValue((char) getDoubleResult(leftOperand, rightOperand));
case T_float:
return newValue((char) getFloatResult(leftOperand, rightOperand));
case T_long:
return newValue((char) getLongResult(leftOperand, rightOperand));
case T_int:
return newValue((char) getIntResult(leftOperand, rightOperand));
default:
return null;
}
}
private IJavaValue getIntValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
switch (getInternResultType()) {
case T_double:
return newValue((int) getDoubleResult(leftOperand, rightOperand));
case T_float:
return newValue((int) getFloatResult(leftOperand, rightOperand));
case T_long:
return newValue((int) getLongResult(leftOperand, rightOperand));
case T_int:
return newValue(getIntResult(leftOperand, rightOperand));
default:
return null;
}
}
private IJavaValue getLongValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
switch (getInternResultType()) {
case T_double:
return newValue((long) getDoubleResult(leftOperand, rightOperand));
case T_float:
return newValue((long) getFloatResult(leftOperand, rightOperand));
case T_long:
return newValue(getLongResult(leftOperand, rightOperand));
case T_int:
return newValue((long) getIntResult(leftOperand, rightOperand));
default:
return null;
}
}
private IJavaValue getFloatValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
switch (getInternResultType()) {
case T_double:
return newValue((float) getDoubleResult(leftOperand, rightOperand));
case T_float:
return newValue(getFloatResult(leftOperand, rightOperand));
case T_long:
return newValue((float) getLongResult(leftOperand, rightOperand));
case T_int:
return newValue((float) getIntResult(leftOperand, rightOperand));
default:
return null;
}
}
private IJavaValue getDoubleValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
switch (getInternResultType()) {
case T_double:
return newValue(getDoubleResult(leftOperand, rightOperand));
case T_float:
return newValue((double) getFloatResult(leftOperand, rightOperand));
case T_long:
return newValue((double) getLongResult(leftOperand, rightOperand));
case T_int:
return newValue((double) getIntResult(leftOperand, rightOperand));
default:
return null;
}
}
private IJavaValue getBooleanValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) {
return newValue(getBooleanResult(leftOperand, rightOperand));
}
private IJavaValue getStringValueResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException {
return newValue(getStringResult(leftOperand, rightOperand));
}
protected abstract int getIntResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException;
protected abstract long getLongResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException;
protected abstract float getFloatResult(IJavaValue leftOperand,
IJavaValue rightOperand);
protected abstract double getDoubleResult(IJavaValue leftOperand,
IJavaValue rightOperand);
protected abstract boolean getBooleanResult(IJavaValue leftOperand,
IJavaValue rightOperand);
protected abstract String getStringResult(IJavaValue leftOperand,
IJavaValue rightOperand) throws CoreException;
protected int getInternResultType() {
return getBinaryPromotionType(fLeftTypeId, fRightTypeId);
}
}