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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 groovy.transform;

import org.codehaus.groovy.transform.GroovyASTTransformationClass;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Annotation used for turning off Groovy's auto visibility conventions.
 * By default, Groovy automatically turns package protected fields into properties
 * and makes package protected methods, constructors and classes public.
 * This annotation allows this feature to be turned
 * off and revert back to Java behavior if needed.
 *
 * Place it on classes, fields, constructors or methods of interest as follows:
 *  * {@code @}PackageScope class Bar {      // package protected
 *     {@code @}PackageScope int field    // package protected; not a property
 *     {@code @}PackageScope method(){}   // package protected
 * }
 * 
 * or for greater control, at the class level with one or more
 * PackageScopeTarget values:
 *  * import static groovy.transform.PackageScopeTarget.*
 * {@code @}PackageScope([CLASS, FIELDS])
 * class Foo {              // class will have package protected scope
 *     int field1, field2   // both package protected
 *     def method(){}       // public
 * }
 * {@code @}PackageScope(METHODS)
 * class Bar {         // public
 *     int field       // treated as a property
 *     def method1(){} // package protected
 *     def method2(){} // package protected
 * }
 * 
 *
 * This transformation is not frequently needed but can be useful in certain testing scenarios
 * or when using a third-party library or framework which relies upon package scoping.
 *
 * @author Paul King
 * @since 1.8.0
 */
@java.lang.annotation.Documented
@Retention(RetentionPolicy.SOURCE)
@Target({ElementType.TYPE, ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.FIELD})
@GroovyASTTransformationClass("org.codehaus.groovy.transform.PackageScopeASTTransformation")
public @interface PackageScope {
    groovy.transform.PackageScopeTarget[] value() default {PackageScopeTarget.CLASS};
}