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8283416: Update java.lang.invoke.MethodHandle to use sealed classes

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Reviewed-by: sundar, mchung
This commit is contained in:
Joe Darcy 2022-03-24 19:08:23 +00:00
parent 90750decb4
commit f16244509d
6 changed files with 23 additions and 17 deletions
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14
src/java.base/share/classes/java/lang/invoke/DirectMethodHandle.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 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
@ -49,7 +49,7 @@ import static java.lang.invoke.MethodTypeForm.*;
* to a class member.
* @author jrose
*/
class DirectMethodHandle extends MethodHandle {
sealed class DirectMethodHandle extends MethodHandle {
final MemberName member;
final boolean crackable;
@ -395,7 +395,7 @@ class DirectMethodHandle extends MethodHandle {
}
/** This subclass represents invokespecial instructions. */
static class Special extends DirectMethodHandle {
static final class Special extends DirectMethodHandle {
private final Class<?> caller;
private Special(MethodType mtype, LambdaForm form, MemberName member, boolean crackable, Class<?> caller) {
super(mtype, form, member, crackable);
@ -425,7 +425,7 @@ class DirectMethodHandle extends MethodHandle {
}
/** This subclass represents invokeinterface instructions. */
static class Interface extends DirectMethodHandle {
static final class Interface extends DirectMethodHandle {
private final Class<?> refc;
private Interface(MethodType mtype, LambdaForm form, MemberName member, boolean crackable, Class<?> refc) {
super(mtype, form, member, crackable);
@ -458,7 +458,7 @@ class DirectMethodHandle extends MethodHandle {
}
/** This subclass handles constructor references. */
static class Constructor extends DirectMethodHandle {
static final class Constructor extends DirectMethodHandle {
final MemberName initMethod;
final Class<?> instanceClass;
@ -493,7 +493,7 @@ class DirectMethodHandle extends MethodHandle {
}
/** This subclass handles non-static field references. */
static class Accessor extends DirectMethodHandle {
static final class Accessor extends DirectMethodHandle {
final Class<?> fieldType;
final int fieldOffset;
private Accessor(MethodType mtype, LambdaForm form, MemberName member,
@ -539,7 +539,7 @@ class DirectMethodHandle extends MethodHandle {
}
/** This subclass handles static field references. */
static class StaticAccessor extends DirectMethodHandle {
static final class StaticAccessor extends DirectMethodHandle {
private final Class<?> fieldType;
private final Object staticBase;
private final long staticOffset;