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java.lang.invoke

pack-priv sealed Class DirectMethodHandle

extends MethodHandle
permits Special, Interface, Constructor, Accessor, StaticAccessor
Class Inheritance
Known Direct Subclasses
java.lang.invoke.DirectMethodHandle.Special, java.lang.invoke.DirectMethodHandle.Interface, java.lang.invoke.DirectMethodHandle.Constructor, java.lang.invoke.DirectMethodHandle.Accessor, java.lang.invoke.DirectMethodHandle.StaticAccessor
Annotations
@AOTSafeClassInitializer
Imports
jdk.internal.misc.CDS, .Unsafe, jdk.internal.vm.annotation.AOTSafeClassInitializer, .ForceInline, .Stable, sun.invoke.util.ValueConversions, .VerifyAccess, .Wrapper, java.util.Arrays, .Objects, java.util.function.Function
The flavor of method handle which implements a constant reference to a class member.
Author
jrose

Nested and Inner Type Summary

Modifier and TypeClass and Description
pack-priv static class
DirectMethodHandle.Accessor

This subclass handles non-static field references.

pack-priv static class
DirectMethodHandle.Constructor

This subclass handles constructor references.

pack-priv class
DirectMethodHandle.Holder

Holds pre-generated bytecode for lambda forms used by DirectMethodHandle.

pack-priv static class
DirectMethodHandle.Interface

This subclass represents invokeinterface instructions.

pack-priv static class
DirectMethodHandle.Special

This subclass represents invokespecial instructions.

pack-priv static class
DirectMethodHandle.StaticAccessor

This subclass handles static field references.

Field Summary

Modifier and TypeField and Description
private static final LambdaForm[]
ACCESSOR_FORMS

pack-priv static final byte
AF_GETFIELD

pack-priv static final byte
AF_GETSTATIC

pack-priv static final byte
AF_GETSTATIC_INIT

pack-priv static final byte
AF_LIMIT

pack-priv static final byte
AF_PUTFIELD

pack-priv static final byte
AF_PUTSTATIC

pack-priv static final byte
AF_PUTSTATIC_INIT

private static final Wrapper[]
ALL_WRAPPERS

pack-priv final boolean
crackable

pack-priv static final int
FT_CHECKED_REF

pack-priv static final int
FT_LIMIT

pack-priv static final int
FT_UNCHECKED_REF

private static final MemberName.Factory
IMPL_NAMES

private static final MethodType
LONG_OBJ_TYPE

pack-priv final MemberName
member

pack-priv static final byte
NF_allocateInstance

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_checkBase

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_checkCast

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_checkReceiver

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_constructorMethod

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_ensureInitialized

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_fieldOffset

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_internalMemberName

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_internalMemberNameEnsureInit

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_LIMIT

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_staticBase

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_staticOffset

Pre-initialized NamedFunctions for bootstrapping purposes.

pack-priv static final byte
NF_UNSAFE

Pre-initialized NamedFunctions for bootstrapping purposes.

private static final LambdaForm.NamedFunction[]
NFS

private static final MethodType
OBJ_OBJ_TYPE

Inherited from java.lang.invoke.MethodHandle:
form

Constructor Summary

AccessConstructor and Description
private
DirectMethodHandle(MethodType mtype, LambdaForm form, MemberName member, boolean crackable)

Method Summary

Modifier and TypeMethod and Description
private static int
afIndex(byte formOp, boolean isVolatile, int ftypeKind)

pack-priv static Object
allocateInstance(Object mh)

pack-priv static Object
checkBase(Object obj)

pack-priv static Object
checkCast(Object mh, Object obj)

pack-priv Object
checkCast(Object obj)

private static boolean
checkInitialized(MemberName member)

pack-priv Object
checkReceiver(Object recv)

Used for interface receiver type checks, by Interface and Special modes.

pack-priv static Object
constructorMethod(Object mh)

pack-priv MethodHandle
copyWith(MethodType mt, LambdaForm lf)

Implements abstract java.lang.invoke.MethodHandle.copyWith.

/ Method handle implementation methods.

private static LambdaForm.NamedFunction
createFunction(byte func)

private void
ensureInitialized()

pack-priv static void
ensureInitialized(Object mh)

pack-priv static long
fieldOffset(Object accessorObj)

pack-priv static Object
findDirectMethodHandle(LambdaForm.Name name)

pack-priv static int
ftypeKind(Class<?> ftype)

private static LambdaForm.Kind
getFieldKind(boolean isVolatile, boolean needsInit, boolean needsCast, Wrapper wrapper)

private static LambdaForm.NamedFunction
getFunction(byte func)

private static LambdaForm.NamedFunction
getNamedFunction(String name, MethodType type)

pack-priv MemberName
internalMemberName()

Overrides java.lang.invoke.MethodHandle.internalMemberName.

pack-priv static Object
internalMemberName(Object mh)

Static wrapper for DirectMethodHandle.internalMemberName.

pack-priv static Object
internalMemberNameEnsureInit(Object mh)

Static wrapper for DirectMethodHandle.internalMemberName.

pack-priv String
internalProperties(int indentLevel)

Overrides java.lang.invoke.MethodHandle.internalProperties.

pack-priv boolean
isCrackable()

Overrides java.lang.invoke.MethodHandle.isCrackable.

pack-priv static DirectMethodHandle
make(byte refKind, Class<?> refc, MemberName member, Class<?> callerClass)

pack-priv static DirectMethodHandle
make(Class<?> refc, MemberName member)

pack-priv static DirectMethodHandle
make(MemberName member)

pack-priv static DirectMethodHandle
makeAllocator(Class<?> instanceClass, MemberName ctor)

pack-priv static LambdaForm
makePreparedFieldLambdaForm(byte formOp, boolean isVolatile, int ftypeKind)

pack-priv static LambdaForm
makePreparedLambdaForm(MethodType mtype, int which)

pack-priv static Object
nullCheck(Object obj)

private static LambdaForm
preparedFieldLambdaForm(MemberName m)

Create a LF which can access the given field.

private static LambdaForm
preparedFieldLambdaForm(byte formOp, boolean isVolatile, Class<?> ftype)

private static LambdaForm
preparedLambdaForm(MemberName m, boolean adaptToSpecialIfc)

Create a LF which can invoke the given method.

private static LambdaForm
preparedLambdaForm(MemberName m)

private static LambdaForm
preparedLambdaForm(MethodType mtype, int which)

pack-priv BoundMethodHandle
rebind()

Implements abstract java.lang.invoke.MethodHandle.rebind.

Require this method handle to be a BMH, or else replace it with a "wrapper" BMH.

pack-priv static boolean
shouldBeInitialized(MemberName member)

pack-priv static Object
staticBase(Object accessorObj)

pack-priv static long
staticOffset(Object accessorObj)

private static String
unsafeMethodName(boolean isGetter, boolean isVolatile, Wrapper wrapper)

pack-priv MethodHandle
viewAsType(MethodType newType, boolean strict)

Overrides java.lang.invoke.MethodHandle.viewAsType.

Inherited from java.lang.invoke.MethodHandle:
asCollectorasCollectorasCollectorChecksasFixedArityasSpreaderasSpreaderasTypeasTypeUncachedasVarargsCollectorbindArgumentLbindTocustomizedebugPrefixdebugStringdebugStringdescribeConstableinternalCallerClassinternalForminternalPropertiesinternalValuesintrinsicDataintrinsicNameinvokeinvokeBasicinvokeExactinvokeWithArgumentsinvokeWithArgumentsisInvokeSpecialisVarargsCollectorlinkToInterfacelinkToNativelinkToSpeciallinkToStaticlinkToVirtualmaybeCustomizesetVarargsstandardStringtoStringtypeupdateFormviewAsTypeCheckswithInternalMemberNamewithVarargs