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88 lines
3.2 KiB
Java
88 lines
3.2 KiB
Java
/*
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* Copyright (c) 2022, 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang.classfile;
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import java.lang.classfile.constantpool.ClassEntry;
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import java.lang.constant.ClassDesc;
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import java.util.Arrays;
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import java.util.List;
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import jdk.internal.classfile.impl.InterfacesImpl;
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import jdk.internal.classfile.impl.Util;
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/**
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* Models the interfaces (JVMS {@jvms 4.1}) of a class. An {@code Interfaces}
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* appears at most once in a {@link ClassModel}: if it does not appear, the
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* class has no interfaces, which is equivalent to an {@code Interfaces} whose
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* {@link #interfaces()} returns an empty list. A {@link ClassBuilder} sets
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* the interfaces to an empty list if the interfaces is not supplied.
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*
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* @see ClassModel#interfaces()
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* @see ClassBuilder#withInterfaces
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* @jvms 4.1 The {@code ClassFile} Structure
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* @since 24
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*/
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public sealed interface Interfaces
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extends ClassElement
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permits InterfacesImpl {
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/** {@return the interfaces of this class, may be empty} */
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List<ClassEntry> interfaces();
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/**
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* {@return an {@linkplain Interfaces} element}
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* @param interfaces the interfaces
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*/
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static Interfaces of(List<ClassEntry> interfaces) {
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return new InterfacesImpl(interfaces);
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}
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/**
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* {@return an {@linkplain Interfaces} element}
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* @param interfaces the interfaces
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*/
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static Interfaces of(ClassEntry... interfaces) {
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return of(List.of(interfaces));
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}
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/**
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* {@return an {@linkplain Interfaces} element}
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* @param interfaces the interfaces
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* @throws IllegalArgumentException if any of {@code interfaces} is primitive
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*/
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static Interfaces ofSymbols(List<ClassDesc> interfaces) {
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return of(Util.entryList(interfaces));
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}
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/**
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* {@return an {@linkplain Interfaces} element}
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* @param interfaces the interfaces
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* @throws IllegalArgumentException if any of {@code interfaces} is primitive
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*/
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static Interfaces ofSymbols(ClassDesc... interfaces) {
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return ofSymbols(Arrays.asList(interfaces));
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}
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}
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