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8308753: Class-File API transition to Preview

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Reviewed-by: ihse, mchung, vromero
This commit is contained in:
Adam Sotona 2023-12-04 07:07:57 +00:00
parent b9df827adc
commit 2b00ac0d02
681 changed files with 7518 additions and 6502 deletions
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src/java.base/share/classes/java/lang/classfile/instruction/StackInstruction.java Normal file
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/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* 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
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package java.lang.classfile.instruction;
import java.lang.classfile.CodeElement;
import java.lang.classfile.CodeModel;
import java.lang.classfile.Instruction;
import java.lang.classfile.Opcode;
import jdk.internal.classfile.impl.AbstractInstruction;
import jdk.internal.classfile.impl.Util;
import jdk.internal.javac.PreviewFeature;
/**
* Models a stack manipulation instruction in the {@code code} array of a
* {@code Code} attribute. Corresponding opcodes will have a {@code kind} of
* {@link Opcode.Kind#STACK}. Delivered as a {@link CodeElement} when
* traversing the elements of a {@link CodeModel}.
*
* @since 22
*/
@PreviewFeature(feature = PreviewFeature.Feature.CLASSFILE_API)
public sealed interface StackInstruction extends Instruction
permits AbstractInstruction.UnboundStackInstruction {
/**
* {@return a stack manipulation instruction}
*
* @param op the opcode for the specific type of stack instruction,
* which must be of kind {@link Opcode.Kind#STACK}
*/
static StackInstruction of(Opcode op) {
Util.checkKind(op, Opcode.Kind.STACK);
return new AbstractInstruction.UnboundStackInstruction(op);
}
}