| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.debug.eval.ast.instructions; |
| |
| import org.eclipse.jdt.debug.core.IJavaPrimitiveValue; |
| import org.eclipse.jdt.debug.core.IJavaValue; |
| |
| public class UnsignedRightShiftOperator extends BinaryOperator { |
| public UnsignedRightShiftOperator(int resultId, int leftTypeId, |
| int rightTypeId, int start) { |
| this(resultId, leftTypeId, rightTypeId, false, start); |
| } |
| |
| public UnsignedRightShiftOperator(int resultId, int leftTypeId, |
| int rightTypeId, boolean isAssignmentOperator, int start) { |
| super(resultId, leftTypeId, rightTypeId, isAssignmentOperator, start); |
| } |
| |
| /* |
| * @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 0; |
| } |
| |
| /* |
| * @see BinaryOperator#getFloatResult(IJavaValue, IJavaValue) |
| */ |
| @Override |
| protected float getFloatResult(IJavaValue leftOperand, |
| IJavaValue rightOperand) { |
| return 0; |
| } |
| |
| /* |
| * @see BinaryOperator#getIntResult(IJavaValue, IJavaValue) |
| */ |
| @Override |
| protected int getIntResult(IJavaValue leftOperand, IJavaValue rightOperand) { |
| // unary type promotion on both operands see 5.6.1 and 15.18 |
| switch (fRightTypeId) { |
| case T_long: |
| return ((IJavaPrimitiveValue) leftOperand).getIntValue() >>> ((IJavaPrimitiveValue) rightOperand) |
| .getLongValue(); |
| case T_int: |
| case T_short: |
| case T_byte: |
| case T_char: |
| return ((IJavaPrimitiveValue) leftOperand).getIntValue() >>> ((IJavaPrimitiveValue) rightOperand) |
| .getIntValue(); |
| default: |
| return 0; |
| } |
| } |
| |
| /* |
| * @see BinaryOperator#getLongResult(IJavaValue, IJavaValue) |
| */ |
| @Override |
| protected long getLongResult(IJavaValue leftOperand, IJavaValue rightOperand) { |
| // unary type promotion on both operands see 5.6.1 and 15.18 |
| switch (fRightTypeId) { |
| case T_long: |
| return ((IJavaPrimitiveValue) leftOperand).getLongValue() >>> ((IJavaPrimitiveValue) rightOperand) |
| .getLongValue(); |
| case T_int: |
| case T_short: |
| case T_byte: |
| case T_char: |
| return ((IJavaPrimitiveValue) leftOperand).getLongValue() >>> ((IJavaPrimitiveValue) rightOperand) |
| .getIntValue(); |
| default: |
| return 0; |
| } |
| } |
| |
| /* |
| * @see BinaryOperator#getStringResult(IJavaValue, IJavaValue) |
| */ |
| @Override |
| protected String getStringResult(IJavaValue leftOperand, |
| IJavaValue rightOperand) { |
| return null; |
| } |
| |
| @Override |
| protected int getInternResultType() { |
| // unary type promotion on both operands see 5.6.1 and 15.18 |
| return getUnaryPromotionType(fLeftTypeId); |
| } |
| |
| @Override |
| public String toString() { |
| return InstructionsEvaluationMessages.UnsignedRightShiftOperator________operator_1; |
| } |
| |
| } |