java.lang.Object
java.lang.constant.ConstantDescs
public final class ConstantDescs extends Object
Predefined values of nominal descriptor
for common constants, including descriptors for primitive class types and
other common platform types, and descriptors for method handles for standard
bootstrap methods.
- Since:
- 12
- See Also:
ConstantDesc
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Field Summary
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Method Summary
Modifier and Type Method Description static DirectMethodHandleDesc
ofCallsiteBootstrap(ClassDesc owner, String name, ClassDesc returnType, ClassDesc... paramTypes)
Returns aMethodHandleDesc
corresponding to a bootstrap method for aninvokedynamic
callsite, which is a static method whose leading parameter types areLookup
,String
, andMethodType
.static DirectMethodHandleDesc
ofConstantBootstrap(ClassDesc owner, String name, ClassDesc returnType, ClassDesc... paramTypes)
Returns aMethodHandleDesc
corresponding to a bootstrap method for a dynamic constant, which is a static method whose leading arguments areLookup
,String
, andClass
.
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Field Details
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DEFAULT_NAME
Invocation name to use when no name is needed, such as the name of a constructor, or the invocation name of a dynamic constant or dynamic callsite when the bootstrap is known to ignore the invocation name.- See Also:
- Constant Field Values
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CD_Object
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CD_String
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CD_Class
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CD_Number
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CD_Integer
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CD_Long
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CD_Float
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CD_Double
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CD_Short
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CD_Byte
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CD_Character
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CD_Boolean
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CD_Void
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CD_Throwable
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CD_Exception
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CD_Enum
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CD_VarHandle
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CD_MethodHandles
ClassDesc
representingMethodHandles
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CD_MethodHandles_Lookup
ClassDesc
representingMethodHandles.Lookup
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CD_MethodHandle
ClassDesc
representingMethodHandle
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CD_MethodType
ClassDesc
representingMethodType
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CD_CallSite
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CD_Collection
ClassDesc
representingCollection
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CD_List
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CD_Set
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CD_Map
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CD_ConstantDesc
ClassDesc
representingConstantDesc
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CD_ClassDesc
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CD_EnumDesc
ClassDesc
representingEnum.EnumDesc
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CD_MethodTypeDesc
ClassDesc
representingMethodTypeDesc
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CD_MethodHandleDesc
ClassDesc
representingMethodHandleDesc
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CD_DirectMethodHandleDesc
ClassDesc
representingDirectMethodHandleDesc
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CD_VarHandleDesc
ClassDesc
representingVarHandle.VarHandleDesc
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CD_MethodHandleDesc_Kind
ClassDesc
representingDirectMethodHandleDesc.Kind
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CD_DynamicConstantDesc
ClassDesc
representingDynamicConstantDesc
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CD_DynamicCallSiteDesc
ClassDesc
representingDynamicCallSiteDesc
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CD_ConstantBootstraps
ClassDesc
representingConstantBootstraps
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BSM_PRIMITIVE_CLASS
MethodHandleDesc
representingConstantBootstraps.primitiveClass
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BSM_ENUM_CONSTANT
MethodHandleDesc
representingConstantBootstraps.enumConstant
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BSM_GET_STATIC_FINAL
MethodHandleDesc
representingConstantBootstraps.getStaticFinal
- Since:
- 15
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BSM_NULL_CONSTANT
MethodHandleDesc
representingConstantBootstraps.nullConstant
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BSM_VARHANDLE_FIELD
MethodHandleDesc
representingConstantBootstraps.fieldVarHandle
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BSM_VARHANDLE_STATIC_FIELD
MethodHandleDesc
representingConstantBootstraps.staticVarHandle
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BSM_VARHANDLE_ARRAY
MethodHandleDesc
representingConstantBootstraps.arrayVarHandle
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BSM_INVOKE
MethodHandleDesc
representingConstantBootstraps.invoke
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BSM_EXPLICIT_CAST
MethodHandleDesc
representingConstantBootstraps.explicitCast(Lookup, String, Class, Object)
ConstantBootstraps.explicitCast}- Since:
- 15
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CD_int
ClassDesc
representing the primitive typeint
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CD_long
ClassDesc
representing the primitive typelong
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CD_float
ClassDesc
representing the primitive typefloat
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CD_double
ClassDesc
representing the primitive typedouble
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CD_short
ClassDesc
representing the primitive typeshort
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CD_byte
ClassDesc
representing the primitive typebyte
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CD_char
ClassDesc
representing the primitive typechar
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CD_boolean
ClassDesc
representing the primitive typeboolean
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CD_void
ClassDesc
representing the primitive typevoid
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NULL
Nominal descriptor representing the constantnull
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TRUE
Nominal descriptor representing the constant Boolean.TRUE- Since:
- 15
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FALSE
Nominal descriptor representing the constant Boolean.TRUE- Since:
- 15
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Method Details
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ofCallsiteBootstrap
public static DirectMethodHandleDesc ofCallsiteBootstrap(ClassDesc owner, String name, ClassDesc returnType, ClassDesc... paramTypes)Returns aMethodHandleDesc
corresponding to a bootstrap method for aninvokedynamic
callsite, which is a static method whose leading parameter types areLookup
,String
, andMethodType
.- Parameters:
owner
- the class declaring the methodname
- the unqualified name of the methodreturnType
- the return type of the methodparamTypes
- the types of the static bootstrap arguments, if any- Returns:
- the
MethodHandleDesc
- Throws:
NullPointerException
- if any of the arguments are null- See Java Virtual Machine Specification:
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4.2.2 Unqualified Names
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ofConstantBootstrap
public static DirectMethodHandleDesc ofConstantBootstrap(ClassDesc owner, String name, ClassDesc returnType, ClassDesc... paramTypes)Returns aMethodHandleDesc
corresponding to a bootstrap method for a dynamic constant, which is a static method whose leading arguments areLookup
,String
, andClass
.- Parameters:
owner
- the class declaring the methodname
- the unqualified name of the methodreturnType
- the return type of the methodparamTypes
- the types of the static bootstrap arguments, if any- Returns:
- the
MethodHandleDesc
- Throws:
NullPointerException
- if any of the arguments are null- See Java Virtual Machine Specification:
-
4.2.2 Unqualified Names
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