src/ast/OpDec.js
/*
* Copyright 2002-2015 the original author or authors.
*
* Licensed 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.
*/
import {SpelNode} from './SpelNode';
/**
* Decrement operator. Can be used in a prefix or postfix form. This will throw
* appropriate exceptions if the operand in question does not support decrement.
*
* @author Andy Clement
* @author Juergen Hoeller
* @author Giovanni Dall'Oglio Risso
* @author Ben March
* @since 0.2.0
*/
function createNode(position, postfix, int) {
var node = SpelNode.create('op-dec', position, int);
node.getValue = function (state) {
var cur = int.getValue(state);
int.setValue(cur - 1, state);
if (postfix) {
return cur;
}
return cur - 1;
};
return node;
}
export var OpDec = {
create: createNode
};