| /******************************************************************************* |
| * Copyright (c) 2000, 2009 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.compiler.ast; |
| |
| import org.eclipse.jdt.internal.compiler.ASTVisitor; |
| import org.eclipse.jdt.internal.compiler.lookup.*; |
| |
| public class PrefixExpression extends CompoundAssignment { |
| |
| /** |
| * PrefixExpression constructor comment. |
| * @param lhs org.eclipse.jdt.internal.compiler.ast.Expression |
| * @param expression org.eclipse.jdt.internal.compiler.ast.Expression |
| * @param operator int |
| */ |
| public PrefixExpression(Expression lhs, Expression expression, int operator, int pos) { |
| super(lhs, expression, operator, lhs.sourceEnd); |
| this.sourceStart = pos; |
| this.sourceEnd = lhs.sourceEnd; |
| } |
| @Override |
| public boolean checkCastCompatibility() { |
| return false; |
| } |
| @Override |
| public String operatorToString() { |
| switch (this.operator) { |
| case PLUS : |
| return "++"; //$NON-NLS-1$ |
| case MINUS : |
| return "--"; //$NON-NLS-1$ |
| } |
| return "unknown operator"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| public StringBuffer printExpressionNoParenthesis(int indent, StringBuffer output) { |
| |
| output.append(operatorToString()).append(' '); |
| return this.lhs.printExpression(0, output); |
| } |
| |
| @Override |
| public boolean restrainUsageToNumericTypes() { |
| return true; |
| } |
| |
| @Override |
| public void traverse(ASTVisitor visitor, BlockScope scope) { |
| if (visitor.visit(this, scope)) { |
| this.lhs.traverse(visitor, scope); |
| } |
| visitor.endVisit(this, scope); |
| } |
| } |