/*
* Copyright 2010 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 spock.util.mop;
import java.lang.annotation.*;
import org.spockframework.runtime.extension.ExtensionAnnotation;
import org.spockframework.runtime.extension.builtin.ConfineMetaClassChangesExtension;
/**
* Confines any changes made to the meta classes of the specified classes to the
* annotated scope. This is done by installing new meta classes when the scope is
* entered, and restoring the previously installed meta classes when the scope is
* left. Note that this only works reliably as long as spec execution is
* single-threaded.
*
* <p>If a spec class is annotated, the meta classes are restored to as they
* were before <tt>setupSpec()</tt> was executed, after <tt>cleanupSpec</tt>
* was executed.
*
* <p>If a feature method is annotated, the meta classes are restored to as they
* were after <tt>setup()</tt> was executed, before <tt>cleanup() is executed.
* For a data-driven feature method, meta classes are restored after each iteration.
*
* @author Luke Daley
*/
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.METHOD})
@ExtensionAnnotation(ConfineMetaClassChangesExtension.class)
public @interface ConfineMetaClassChanges {
/**
* The classes whose meta class changes are to be confined.
*/
Class<?>[] value();
}