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56 lines
2.3 KiB
Java
56 lines
2.3 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.constantpool;
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import java.lang.classfile.AnnotationValue;
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import java.lang.constant.ConstantDesc;
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/**
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* Marker interface for constant pool entries that can represent constant values
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* associated with elements of annotations. They are also the only entries that
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* do not refer to other constant pool entries.
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*
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* @apiNote
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* An annotation constant value entry alone is not sufficient to determine
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* the annotation constant; for example, an {@link IntegerEntry} of {@code 1}
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* can mean {@code true} in {@link AnnotationValue.OfBoolean} or {@code 1}
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* in {@link AnnotationValue.OfInt}.
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*
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* @see AnnotationValue.OfConstant
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* @jvms 4.7.16.1 The {@code element_value} structure
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* @sealedGraph
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* @since 24
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*/
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public sealed interface AnnotationConstantValueEntry extends PoolEntry
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permits DoubleEntry, FloatEntry, IntegerEntry, LongEntry, Utf8Entry {
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/**
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* {@return the constant value} The constant value will be an {@link
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* Integer}, {@link Long}, {@link Float}, {@link Double} for the primitive
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* constants, or {@link String} for UTF8 constants.
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*/
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ConstantDesc constantValue();
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}
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