/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.codehaus.groovy.syntax;
import static org.codehaus.groovy.syntax.Types.*;
/**
* Utility methods for working with Tokens.
*
*/
public class TokenUtil {
private TokenUtil() {
}
/**
* Removes the assignment portion of a given token. If the given token
* is not an operator with assignment, the given token is returned.
*
* @param op token for which to remove assignment
* @return token without assignment, or the original token
* if it was not an assignment operator
*/
public static int removeAssignment(int op) {
switch (op) {
case PLUS_EQUAL: return PLUS;
case MINUS_EQUAL: return MINUS;
case MULTIPLY_EQUAL: return MULTIPLY;
case LEFT_SHIFT_EQUAL: return LEFT_SHIFT;
case RIGHT_SHIFT_EQUAL: return RIGHT_SHIFT;
case RIGHT_SHIFT_UNSIGNED_EQUAL: return RIGHT_SHIFT_UNSIGNED;
case LOGICAL_OR_EQUAL: return LOGICAL_OR;
case LOGICAL_AND_EQUAL: return LOGICAL_AND;
case MOD_EQUAL: return MOD;
case DIVIDE_EQUAL: return DIVIDE;
case INTDIV_EQUAL: return INTDIV;
case POWER_EQUAL: return POWER;
case BITWISE_OR_EQUAL: return BITWISE_OR;
case BITWISE_AND_EQUAL: return BITWISE_AND;
case BITWISE_XOR_EQUAL: return BITWISE_XOR;
default: return op;
}
}
}