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93 lines
3.6 KiB
Java
93 lines
3.6 KiB
Java
/*
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* Copyright (c) 2022, 2024, 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.attribute;
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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 java.lang.classfile.Attribute;
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import java.lang.classfile.constantpool.ClassEntry;
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import java.lang.classfile.MethodElement;
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import jdk.internal.classfile.impl.BoundAttribute;
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import jdk.internal.classfile.impl.UnboundAttribute;
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import jdk.internal.classfile.impl.Util;
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import jdk.internal.javac.PreviewFeature;
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/**
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* Models the {@code Exceptions} attribute (JVMS {@jvms 4.7.5}), which can appear on
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* methods, and records the exceptions declared to be thrown by this method.
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* Delivered as a {@link MethodElement} when traversing the elements of a
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* {@link java.lang.classfile.MethodModel}.
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* <p>
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* The attribute does not permit multiple instances in a given location.
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* Subsequent occurrence of the attribute takes precedence during the attributed
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* element build or transformation.
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*
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* @since 22
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*/
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@PreviewFeature(feature = PreviewFeature.Feature.CLASSFILE_API)
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public sealed interface ExceptionsAttribute
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extends Attribute<ExceptionsAttribute>, MethodElement
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permits BoundAttribute.BoundExceptionsAttribute,
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UnboundAttribute.UnboundExceptionsAttribute {
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/**
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* {@return the exceptions declared to be thrown by this method}
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*/
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List<ClassEntry> exceptions();
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/**
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* {@return an {@code Exceptions} attribute}
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* @param exceptions the checked exceptions that may be thrown from this method
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*/
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static ExceptionsAttribute of(List<ClassEntry> exceptions) {
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return new UnboundAttribute.UnboundExceptionsAttribute(exceptions);
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}
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/**
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* {@return an {@code Exceptions} attribute}
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* @param exceptions the checked exceptions that may be thrown from this method
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*/
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static ExceptionsAttribute of(ClassEntry... exceptions) {
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return of(List.of(exceptions));
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}
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/**
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* {@return an {@code Exceptions} attribute}
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* @param exceptions the checked exceptions that may be thrown from this method
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*/
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static ExceptionsAttribute ofSymbols(List<ClassDesc> exceptions) {
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return of(Util.entryList(exceptions));
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}
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/**
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* {@return an {@code Exceptions} attribute}
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* @param exceptions the checked exceptions that may be thrown from this method
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*/
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static ExceptionsAttribute ofSymbols(ClassDesc... exceptions) {
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return ofSymbols(Arrays.asList(exceptions));
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}
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}
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