org.codehaus.groovy.runtime.metaclass.MixedInMetaClass Maven / Gradle / Ivy

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Groovy: A powerful, dynamic language for the JVM

There is a newer version: 3.0.21

/*
 * Copyright 2003-2007 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.
 */

package org.codehaus.groovy.runtime.metaclass;

import org.codehaus.groovy.runtime.InvokerHelper;

import java.lang.ref.WeakReference;

import groovy.lang.*;
import org.codehaus.groovy.runtime.MetaClassHelper;

/**
 * @author Alex Tkachman
 *
 */
public class MixedInMetaClass extends OwnedMetaClass {
    private final WeakReference owner;

    public MixedInMetaClass(Object instance, Object owner) {
        super(GroovySystem.getMetaClassRegistry().getMetaClass(instance.getClass()));
        this.owner = new WeakReference(owner);
        MetaClassHelper.doSetMetaClass(instance, this);
    }

    protected Object getOwner() {
        return this.owner.get();
    }

    protected MetaClass getOwnerMetaClass(Object owner) {
        return InvokerHelper.getMetaClass(owner);
    }

    public Object invokeMethod(Class sender, Object receiver, String methodName, Object[] arguments, boolean isCallToSuper, boolean fromInsideClass) {
        if (isCallToSuper) {
            return delegate.invokeMethod(sender, receiver, methodName, arguments, true, fromInsideClass);
        }
        return super.invokeMethod(sender, receiver, methodName, arguments, false, fromInsideClass);
    }
}