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8076461: JSR292: remove unused native and constants

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Reviewed-by: jrose, vlivanov
This commit is contained in:
Vladimir Ivanov 2015-04-14 18:16:02 +03:00
parent 4097393258
commit c9ac987bf3
1 changed files with 16 additions and 98 deletions
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94
jdk/src/java.base/share/classes/java/lang/invoke/MethodHandleNatives.java
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -55,16 +55,6 @@ class MethodHandleNatives {
static native Object staticFieldBase(MemberName self); // e.g., returns clazz static native Object staticFieldBase(MemberName self); // e.g., returns clazz
static native Object getMemberVMInfo(MemberName self); // returns {vmindex,vmtarget} static native Object getMemberVMInfo(MemberName self); // returns {vmindex,vmtarget}
/// MethodHandle support
/** Fetch MH-related JVM parameter.
* which=0 retrieves MethodHandlePushLimit
* which=1 retrieves stack slot push size (in address units)
*/
static native int getConstant(int which);
static final boolean COUNT_GWT;
/// CallSite support /// CallSite support
/** Tell the JVM that we need to change the target of a CallSite. */ /** Tell the JVM that we need to change the target of a CallSite. */
@ -74,27 +64,19 @@ class MethodHandleNatives {
private static native void registerNatives(); private static native void registerNatives();
static { static {
registerNatives(); registerNatives();
COUNT_GWT = getConstant(Constants.GC_COUNT_GWT) != 0;
// The JVM calls MethodHandleNatives.<clinit>. Cascade the <clinit> calls as needed: // The JVM calls MethodHandleNatives.<clinit>. Cascade the <clinit> calls as needed:
MethodHandleImpl.initStatics(); MethodHandleImpl.initStatics();
} }
// All compile-time constants go here. /**
// There is an opportunity to check them against the JVM's idea of them. * Compile-time constants go here. This collection exists not only for
* reference from clients, but also for ensuring the VM and JDK agree on the
* values of these constants (see {@link #verifyConstants()}).
*/
static class Constants { static class Constants {
Constants() { } // static only Constants() { } // static only
// MethodHandleImpl
static final int // for getConstant
GC_COUNT_GWT = 4,
GC_LAMBDA_SUPPORT = 5;
// MemberName
// The JVM uses values of -2 and above for vtable indexes.
// Field values are simple positive offsets.
// Ref: src/share/vm/oops/methodOop.hpp
// This value is negative enough to avoid such numbers,
// but not too negative.
static final int static final int
MN_IS_METHOD = 0x00010000, // method (not constructor) MN_IS_METHOD = 0x00010000, // method (not constructor)
MN_IS_CONSTRUCTOR = 0x00020000, // constructor MN_IS_CONSTRUCTOR = 0x00020000, // constructor
@ -107,70 +89,6 @@ class MethodHandleNatives {
MN_SEARCH_SUPERCLASSES = 0x00100000, MN_SEARCH_SUPERCLASSES = 0x00100000,
MN_SEARCH_INTERFACES = 0x00200000; MN_SEARCH_INTERFACES = 0x00200000;
/**
* Basic types as encoded in the JVM. These code values are not
* intended for use outside this class. They are used as part of
* a private interface between the JVM and this class.
*/
static final int
T_BOOLEAN = 4,
T_CHAR = 5,
T_FLOAT = 6,
T_DOUBLE = 7,
T_BYTE = 8,
T_SHORT = 9,
T_INT = 10,
T_LONG = 11,
T_OBJECT = 12,
//T_ARRAY = 13
T_VOID = 14,
//T_ADDRESS = 15
T_ILLEGAL = 99;
/**
* Constant pool entry types.
*/
static final byte
CONSTANT_Utf8 = 1,
CONSTANT_Integer = 3,
CONSTANT_Float = 4,
CONSTANT_Long = 5,
CONSTANT_Double = 6,
CONSTANT_Class = 7,
CONSTANT_String = 8,
CONSTANT_Fieldref = 9,
CONSTANT_Methodref = 10,
CONSTANT_InterfaceMethodref = 11,
CONSTANT_NameAndType = 12,
CONSTANT_MethodHandle = 15, // JSR 292
CONSTANT_MethodType = 16, // JSR 292
CONSTANT_InvokeDynamic = 18,
CONSTANT_LIMIT = 19; // Limit to tags found in classfiles
/**
* Access modifier flags.
*/
static final char
ACC_PUBLIC = 0x0001,
ACC_PRIVATE = 0x0002,
ACC_PROTECTED = 0x0004,
ACC_STATIC = 0x0008,
ACC_FINAL = 0x0010,
ACC_SYNCHRONIZED = 0x0020,
ACC_VOLATILE = 0x0040,
ACC_TRANSIENT = 0x0080,
ACC_NATIVE = 0x0100,
ACC_INTERFACE = 0x0200,
ACC_ABSTRACT = 0x0400,
ACC_STRICT = 0x0800,
ACC_SYNTHETIC = 0x1000,
ACC_ANNOTATION = 0x2000,
ACC_ENUM = 0x4000,
// aliases:
ACC_SUPER = ACC_SYNCHRONIZED,
ACC_BRIDGE = ACC_VOLATILE,
ACC_VARARGS = ACC_TRANSIENT;
/** /**
* Constant pool reference-kind codes, as used by CONSTANT_MethodHandle CP entries. * Constant pool reference-kind codes, as used by CONSTANT_MethodHandle CP entries.
*/ */