/**
* MVEL 2.0
* Copyright (C) 2007 The Codehaus
* Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
*
* 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.
*/
package org.mvel2.ast;
import org.mvel2.DataTypes;
import org.mvel2.Operator;
import org.mvel2.ParserContext;
import org.mvel2.integration.VariableResolver;
import org.mvel2.integration.VariableResolverFactory;
import org.mvel2.math.MathProcessor;
import org.mvel2.util.ParseTools;
/**
* @author Christopher Brock
*/
public class IndexedPostFixDecNode extends ASTNode {
private int register;
public IndexedPostFixDecNode(int register, ParserContext pCtx) {
super(pCtx);
this.register = register;
this.egressType = pCtx.getVarOrInputType(pCtx.getIndexedVarNames()[register]);
}
public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
VariableResolver vResolver = factory.getIndexedVariableResolver(register);
// ctx = vResolver.getValue();
vResolver.setValue(MathProcessor.doOperations(ParseTools.resolveType(ctx = vResolver.getValue()),
ctx, Operator.SUB, DataTypes.INTEGER, 1));
return ctx;
}
public Object getReducedValue(Object ctx, Object thisValue, VariableResolverFactory factory) {
return getReducedValueAccelerated(ctx, thisValue, factory);
}
}