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/*
 * Copyright 2015-2021 the original author or authors.
 *
 * All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License v2.0 which
 * accompanies this distribution and is available at
 *
 * https://www.eclipse.org/legal/epl-v20.html
 */

package org.junit.jupiter.api.extension;

import static org.apiguardian.api.API.Status.EXPERIMENTAL;

import java.lang.reflect.Executable;
import java.util.List;
import java.util.Optional;

import org.apiguardian.api.API;

/**
 * {@code ReflectiveInvocationContext} encapsulates the context of
 * a reflective invocation of an executable (method or constructor).
 *
 * 

This interface is not intended to be implemented by clients. * * @since 5.5 */ @API(status = EXPERIMENTAL, since = "5.5") public interface ReflectiveInvocationContext { /** * Get the target class of this invocation context. * *

If this invocation context represents an instance method, this * method returns the class of the object the method will be invoked on, * not the class it is declared in. Otherwise, if this invocation * represents a static method or constructor, this method returns the * class the method or constructor is declared in. * * @return the target class of this invocation context; never * {@code null} */ Class getTargetClass(); /** * Get the method or constructor of this invocation context. * * @return the executable of this invocation context; never {@code null} */ T getExecutable(); /** * Get the arguments of the executable in this invocation context. * * @return the arguments of the executable in this invocation context; * immutable and never {@code null} */ List getArguments(); /** * Get the target object of this invocation context, if available. * *

If this invocation context represents an instance method, this * method returns the object the method will be invoked on. Otherwise, * if this invocation context represents a static method or * constructor, this method returns {@link Optional#empty() empty()}. * * @return the target of the executable of this invocation context; never * {@code null} but potentially empty */ Optional getTarget(); }