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/*
 * Copyright 2014 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.gradle.internal.metaobject;

import groovy.lang.Closure;
import org.codehaus.groovy.runtime.GeneratedClosure;

/**
 * Exposes methods for those properties whose value is a closure.
 *
 * TODO: use composition instead of inheritance
 */
public abstract class MixInClosurePropertiesAsMethodsDynamicObject extends CompositeDynamicObject {
    @Override
    public void invokeMethod(String name, InvokeMethodResult result, Object... arguments) {
        super.invokeMethod(name, result, arguments);
        if (result.isFound()) {
            return;
        }

        GetPropertyResult propertyLookup = new GetPropertyResult();
        getProperty(name, propertyLookup);
        if (propertyLookup.isFound()) {
            Object property = propertyLookup.getValue();
            if (property instanceof Closure) {
                Closure closure = (Closure) property;
                closure.setResolveStrategy(Closure.DELEGATE_FIRST);
                BeanDynamicObject dynamicObject = new BeanDynamicObject(closure);
                dynamicObject.invokeMethod("doCall", result, arguments);
                if (!result.isFound() && !(closure instanceof GeneratedClosure)) {
                    result.result(closure.call(arguments));
                }
            }
        }
    }
}