io.github.dmlloyd.classfile.extras.constant.ModuleDesc Maven / Gradle / Ivy
/*
* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package io.github.dmlloyd.classfile.extras.constant;
import static java.util.Objects.requireNonNull;
/**
* A nominal descriptor for a {@code Module} constant.
*
*
* To create a {@link ModuleDesc} for a module, use the {@link #of(String)}
* method.
*
* @jvms 4.4.11 The CONSTANT_Module_info Structure
* @since 21
*/
public sealed interface ModuleDesc
permits ModuleDescImpl {
/**
* Returns a {@link ModuleDesc} for a module,
* given the name of the module.
*
* @param name the module name
* @return a {@link ModuleDesc} describing the desired module
* @throws NullPointerException if the argument is {@code null}
* @throws IllegalArgumentException if the name string is not in the
* correct format
* @jvms 4.2.3 Module and Package Names
*/
static ModuleDesc of(String name) {
ConstantUtils.validateModuleName(requireNonNull(name));
return new ModuleDescImpl(name);
}
/**
* Returns the module name of this {@link ModuleDesc}.
*
* @return the module name
*/
String name();
/**
* Compare the specified object with this descriptor for equality.
* Returns {@code true} if and only if the specified object is
* also a {@link ModuleDesc} and both describe the same module.
*
* @param o the other object
* @return whether this descriptor is equal to the other object
*/
@Override
boolean equals(Object o);
}