Adam Sotona 2b00ac0d02 8308753: Class-File API transition to Preview
Reviewed-by: ihse, mchung, vromero
2023-12-04 07:07:57 +00:00

74 lines
2.8 KiB
Java

/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* under the terms of the GNU General Public License version 2 only, as
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* 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
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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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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package java.lang.classfile.attribute;
import java.lang.classfile.Attribute;
import java.lang.classfile.ClassElement;
import java.lang.classfile.ClassModel;
import java.lang.classfile.constantpool.Utf8Entry;
import jdk.internal.classfile.impl.BoundAttribute;
import jdk.internal.classfile.impl.TemporaryConstantPool;
import jdk.internal.classfile.impl.UnboundAttribute;
import jdk.internal.javac.PreviewFeature;
/**
* Models the {@code SourceFile} attribute {@jvms 4.7.10}, which
* can appear on classes. Delivered as a {@link java.lang.classfile.ClassElement}
* when traversing a {@link ClassModel}.
* <p>
* 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 SourceFileAttribute
extends Attribute<SourceFileAttribute>, ClassElement
permits BoundAttribute.BoundSourceFileAttribute, UnboundAttribute.UnboundSourceFileAttribute {
/**
* {@return the name of the source file from which this class was compiled}
*/
Utf8Entry sourceFile();
/**
* {@return a source file attribute}
* @param sourceFile the source file name
*/
static SourceFileAttribute of(String sourceFile) {
return of(TemporaryConstantPool.INSTANCE.utf8Entry(sourceFile));
}
/**
* {@return a source file attribute}
* @param sourceFile the source file name
*/
static SourceFileAttribute of(Utf8Entry sourceFile) {
return new UnboundAttribute.UnboundSourceFileAttribute(sourceFile);
}
}