io.github.dmlloyd.classfile.attribute.SourceIDAttribute Maven / Gradle / Ivy
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/*
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* 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
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*
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package io.github.dmlloyd.classfile.attribute;
import io.github.dmlloyd.classfile.Attribute;
import io.github.dmlloyd.classfile.ClassElement;
import io.github.dmlloyd.classfile.ClassModel;
import io.github.dmlloyd.classfile.constantpool.Utf8Entry;
import io.github.dmlloyd.classfile.impl.BoundAttribute;
import io.github.dmlloyd.classfile.impl.TemporaryConstantPool;
import io.github.dmlloyd.classfile.impl.UnboundAttribute;
import io.github.dmlloyd.classfile.extras.PreviewFeature;
/**
* Models the {@code SourceID} attribute, which can
* appear on classes. Delivered as a {@link ClassElement} when
* traversing a {@link ClassModel}.
*
* The attribute does not permit multiple instances in a given location.
* Subsequent occurrence of the attribute takes precedence during the attributed
* element build or transformation.
*
* @since 22
*/
@PreviewFeature(feature = PreviewFeature.Feature.CLASSFILE_API)
public sealed interface SourceIDAttribute
extends Attribute, ClassElement
permits BoundAttribute.BoundSourceIDAttribute, UnboundAttribute.UnboundSourceIDAttribute {
/**
* {@return the source id} The source id is the last modified time of the
* source file (as reported by the filesystem, in milliseconds) when the
* classfile is compiled.
*/
Utf8Entry sourceId();
/**
* {@return a {@code SourceID} attribute}
* @param sourceId the source id
*/
static SourceIDAttribute of(Utf8Entry sourceId) {
return new UnboundAttribute.UnboundSourceIDAttribute(sourceId);
}
/**
* {@return a {@code SourceID} attribute}
* @param sourceId the source id
*/
static SourceIDAttribute of(String sourceId) {
return of(TemporaryConstantPool.INSTANCE.utf8Entry(sourceId));
}
}