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
/*******************************************************************************
 * 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.
Params:
lhs – org.eclipse.jdt.internal.compiler.ast.Expression
expression – org.eclipse.jdt.internal.compiler.ast.Expression
operator – int/**
 * 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);
}
}