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Groovy: A powerful, dynamic language for the JVM

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/*
 *  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.reflection.stdclasses;

import groovy.lang.GString;
import org.codehaus.groovy.reflection.CachedClass;
import org.codehaus.groovy.reflection.ClassInfo;
import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation;

/**
 * @author Alex.Tkachman
 */
public class ArrayCachedClass extends CachedClass {
    public ArrayCachedClass(Class klazz, ClassInfo classInfo) {
        super(klazz, classInfo);
    }

    public Object coerceArgument(Object argument) {
        Class argumentClass = argument.getClass();
        if (argumentClass.getName().charAt(0) != '[') return argument;
        Class argumentComponent = argumentClass.getComponentType();

        Class paramComponent = getTheClass().getComponentType();
        if (paramComponent.isPrimitive()) {
            argument = DefaultTypeTransformation.convertToPrimitiveArray(argument, paramComponent);
        } else if (paramComponent == String.class && argument instanceof GString[]) {
            GString[] strings = (GString[]) argument;
            String[] ret = new String[strings.length];
            for (int i = 0; i < strings.length; i++) {
                ret[i] = strings[i].toString();
            }
            argument = ret;
        } else if (paramComponent==Object.class && argumentComponent.isPrimitive()){
            argument = DefaultTypeTransformation.primitiveArrayBox(argument);
        }
        return argument;
    }

}