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87 lines
3.3 KiB
Java
87 lines
3.3 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.attribute;
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import java.lang.classfile.Attribute;
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import java.lang.classfile.AttributeMapper;
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import java.lang.classfile.AttributeMapper.AttributeStability;
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import java.lang.classfile.Attributes;
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import java.lang.classfile.ClassElement;
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import java.lang.classfile.constantpool.Utf8Entry;
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import jdk.internal.classfile.impl.BoundAttribute;
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import jdk.internal.classfile.impl.TemporaryConstantPool;
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import jdk.internal.classfile.impl.UnboundAttribute;
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/**
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* Models the {@link Attributes#sourceId() SourceID} attribute, which records
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* the last modified time of the source file from which this {@code class} file
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* was compiled.
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* <p>
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* This attribute only appears on classes, and does not permit {@linkplain
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* AttributeMapper#allowMultiple multiple instances} in a class. It has a
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* data dependency on the {@linkplain AttributeStability#CP_REFS constant pool}.
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* <p>
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* This attribute is not predefined in the Java SE Platform. This is a
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* JDK-specific nonstandard attribute produced by the {@linkplain jdk.compiler/
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* implementation of the system Java compiler}.
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*
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* @see Attributes#sourceId()
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* @see CompilationIDAttribute
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* @see CharacterRangeTableAttribute
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* @since 24
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*/
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@SuppressWarnings("doclint:reference")
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public sealed interface SourceIDAttribute
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extends Attribute<SourceIDAttribute>, ClassElement
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permits BoundAttribute.BoundSourceIDAttribute, UnboundAttribute.UnboundSourceIDAttribute {
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/**
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* {@return the source id} The source id is the last modified time of the
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* source file (as reported by the file system, in milliseconds) when this
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* {@code class} file is compiled.
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*/
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Utf8Entry sourceId();
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/**
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* {@return a {@code SourceID} attribute}
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*
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* @param sourceId the source id
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*/
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static SourceIDAttribute of(Utf8Entry sourceId) {
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return new UnboundAttribute.UnboundSourceIDAttribute(sourceId);
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}
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/**
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* {@return a {@code SourceID} attribute}
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*
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* @param sourceId the source id
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*/
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static SourceIDAttribute of(String sourceId) {
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return of(TemporaryConstantPool.INSTANCE.utf8Entry(sourceId));
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}
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}
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