Modifier and Type	Class and Description
pack-priv static class	PyGetSetDescr.Multiple A `PyGetSetDescr` to use for a get-set attribute when the owning Python type has multiple accepted implementations.
pack-priv static class	PyGetSetDescr.Single A `PyGetSetDescr` to use for a get-set attribute when the owning Python type has just one accepted implementation.
pack-priv static enum	PyGetSetDescr.Type A mapping from symbolic names for the types of method handle in a `PyGetSetDescr` to other properties like the method handle type.

Modifier and Type	Field and Description
pack-priv static final MethodType	DELETER The method handle type (O)V.
pack-priv final String	doc Documentation string for this attribute.
private static MethodHandle	EMPTY_DELETER A handle on `emptyDeleter(PyObject)`
private static MethodHandle	EMPTY_GETTER A handle on `emptyGetter(PyObject)`
private static MethodHandle[]	EMPTY_MH_ARRAY Empty array of method handles
private static MethodHandle	EMPTY_SETTER A handle on `emptySetter(PyObject, PyObject)`
pack-priv static final MethodType	GETTER The method handle type (O)O.
pack-priv final Class<?>	klass Java class of attribute accepted by set method.
pack-priv static final MethodHandles.Lookup	LOOKUP
pack-priv static final MethodType	SETTER The method handle type (O,O)V.
pack-priv static final PyType	TYPE

Access	Constructor and Description
pack-priv	PyGetSetDescr(PyType to which descriptor applies objclass, String of attribute name, String documentation string doc, Class<?> Java class of attribute accepted by set method klass) Construct a descriptor that calls the access methods for get, set and delete operations specified as method handles.

Method Summary

Modifier and Type	Method and Description
pack-priv void	__delete__(Object object on which the attribute is sought obj) Implements abstract org.python.core.DataDescriptor.__delete__. The `__delete__` special method of the Python descriptor protocol, implementing `del obj.name`.
pack-priv Object	__get__(Object object on which the attribute is sought or `null` obj, PyType is ignored type) Implements abstract org.python.core.Descriptor.__get__. The `__get__` special method of the Python descriptor protocol, implementing `obj.name` or possibly `type.name`.
private Object	__repr__()
pack-priv void	__set__(Object object on which the attribute is sought obj, Object to assign (not `null`) value) Implements abstract org.python.core.DataDescriptor.__set__. The `__set__` special method of the Python descriptor protocol, implementing `obj.name = value`.
private static void	emptyDeleter(Object object to operate on ignored) This method fills `delete` when the implementation leaves it blank.
private static Object	Returns: never emptyGetter(Object object to operate on ignored) This method fills `get` when the implementation leaves it blank.
private static void	emptySetter(Object object to operate on ignored, Object ignored too v) This method fills `set` when the implementation leaves it blank.
pack-priv static Object	getset_get_doc(PyGetSetDescr descr)
pack-priv abstract MethodHandle	Returns: corresponding handle (or `slot.getEmpty()`) getWrappedDelete(Class<?> Java class of the `self` argument selfClass) Return the deleter contained in this descriptor applicable to the Java class supplied.
pack-priv abstract MethodHandle	Returns: corresponding handle (or `slot.getEmpty()`) getWrappedGet(Class<?> Java class of the `self` argument selfClass) Return the getter contained in this descriptor applicable to the Java class supplied.
pack-priv abstract MethodHandle	Returns: corresponding handle (or `slot.getEmpty()`) getWrappedSet(Class<?> Java class of the `self` argument selfClass) Return the setter contained in this descriptor applicable to the Java class supplied.
pack-priv abstract boolean	Returns: true if the attribute may be deleted. optional() The attribute may be deleted.
pack-priv abstract boolean	Returns: true if the attribute may not be set or deleted readonly() The attribute may not be set or deleted.

Inherited from org.python.core.DataDescriptor:: attrMustBe attrMustBe cannotDeleteAttr cannotReadAttr cannotWriteAttr checkDelete checkSet

Field Detail

DELETER	back to summary
pack-priv static final MethodType DELETER The method handle type (O)V.

doc	back to summary
pack-priv final String doc Documentation string for this attribute.

EMPTY_DELETER	back to summary
private static MethodHandle EMPTY_DELETER A handle on `emptyDeleter(PyObject)`

EMPTY_GETTER	back to summary
private static MethodHandle EMPTY_GETTER A handle on `emptyGetter(PyObject)`

EMPTY_MH_ARRAY	back to summary
private static MethodHandle[] EMPTY_MH_ARRAY Empty array of method handles

EMPTY_SETTER	back to summary
private static MethodHandle EMPTY_SETTER A handle on `emptySetter(PyObject, PyObject)`

GETTER	back to summary
pack-priv static final MethodType GETTER The method handle type (O)O.

klass	back to summary
pack-priv final Class<?> klass Java class of attribute accepted by set method.

LOOKUP	back to summary
pack-priv static final MethodHandles.Lookup LOOKUP

SETTER	back to summary
pack-priv static final MethodType SETTER The method handle type (O,O)V.

TYPE	back to summary
pack-priv static final PyType TYPE

Constructor Detail

PyGetSetDescr	back to summary
pack-priv PyGetSetDescr(PyType objclass, String name, String doc, Class<?> klass) Construct a descriptor that calls the access methods for get, set and delete operations specified as method handles. Parameters objclass:PyType to which descriptor applies name:String of attribute doc:String documentation string klass:Class<?> Java class of attribute accepted by set method

PyGetSetDescr

back to summary

pack-priv PyGetSetDescr(PyType objclass, String name, String doc, Class<?> klass)

Construct a descriptor that calls the access methods for get, set and delete operations specified as method handles.

Parameters

objclass:PyType: to which descriptor applies
name:String: of attribute
doc:String: documentation string
klass:Class<?>: Java class of attribute accepted by set method

Method Detail

__delete__ back to summary

__delete__	back to summary
pack-priv void __delete__(Object obj) throws TypeError, Throwable Implements abstract org.python.core.DataDescriptor.__delete__. Doc from org.python.core.DataDescriptor.__delete__. The `__delete__` special method of the Python descriptor protocol, implementing `del obj.name`. In general, `obj` must be of type `objclass`. Parameters obj:Object object on which the attribute is sought Annotations @Override Exceptions Throwable: from the implementation of the deleter

pack-priv void __delete__(Object obj) throws TypeError, Throwable

Implements abstract org.python.core.DataDescriptor.__delete__.

Doc from org.python.core.DataDescriptor.__delete__.

The __delete__ special method of the Python descriptor protocol, implementing del obj.name. In general, obj must be of type objclass.

Parameters

obj:Object: object on which the attribute is sought

Annotations

@Override

Exceptions

Throwable:: from the implementation of the deleter

__get__ back to summary

__get__	back to summary
pack-priv Object __get__(Object obj, PyType type) throws Throwable Implements abstract org.python.core.Descriptor.__get__. Doc from org.python.core.Descriptor.__get__. The `__get__` special method of the Python descriptor protocol, implementing `obj.name` or possibly `type.name`. If `obj != null` invoke `get` on it to return a value. `obj` must be of type `objclass`. A call made with `obj == null` returns `this` descriptor. Parameters obj:Object object on which the attribute is sought or `null` type:PyType is ignored Returns:Object attribute value, bound object or this attribute Annotations @Override Exceptions Throwable: from the implementation of the getter

pack-priv Object __get__(Object obj, PyType type) throws Throwable

Implements abstract org.python.core.Descriptor.__get__.

Doc from org.python.core.Descriptor.__get__.

The __get__ special method of the Python descriptor protocol, implementing obj.name or possibly type.name. If obj != null invoke get on it to return a value. obj must be of type objclass. A call made with obj == null returns this descriptor.

Parameters

obj:Object: object on which the attribute is sought or null
type:PyType: is ignored

Returns:Object

attribute value, bound object or this attribute

Annotations

@Override

Exceptions

Throwable:: from the implementation of the getter

__repr__	back to summary
private Object __repr__() Annotations @SuppressWarnings:unused

__set__ back to summary

__set__	back to summary
pack-priv void __set__(Object obj, Object value) throws TypeError, Throwable Implements abstract org.python.core.DataDescriptor.__set__. Doc from org.python.core.DataDescriptor.__set__. The `__set__` special method of the Python descriptor protocol, implementing `obj.name = value`. In general, `obj` must be of type `objclass`. Parameters obj:Object object on which the attribute is sought value:Object to assign (not `null`) Annotations @Override Exceptions Throwable: from the implementation of the setter

pack-priv void __set__(Object obj, Object value) throws TypeError, Throwable

Implements abstract org.python.core.DataDescriptor.__set__.

Doc from org.python.core.DataDescriptor.__set__.

The __set__ special method of the Python descriptor protocol, implementing obj.name = value. In general, obj must be of type objclass.

Parameters

obj:Object: object on which the attribute is sought
value:Object: to assign (not null)

Annotations

@Override

Exceptions

Throwable:: from the implementation of the setter

emptyDeleter back to summary

emptyDeleter	back to summary
private static void emptyDeleter(Object ignored) throws EmptyException This method fills `delete` when the implementation leaves it blank. Parameters ignored:Object object to operate on Annotations @SuppressWarnings:unused Exceptions EmptyException: always

private static void emptyDeleter(Object ignored) throws EmptyException

This method fills delete when the implementation leaves it blank.

Parameters

ignored:Object: object to operate on

Annotations

@SuppressWarnings:unused

Exceptions

EmptyException:: always

emptyGetter back to summary

emptyGetter	back to summary
private static Object emptyGetter(Object ignored) throws EmptyException This method fills `get` when the implementation leaves it blank. Parameters ignored:Object object to operate on Returns:Object never Annotations @SuppressWarnings:unused Exceptions EmptyException: always

private static Object emptyGetter(Object ignored) throws EmptyException

This method fills get when the implementation leaves it blank.

Parameters

ignored:Object: object to operate on

Returns:Object

never

Annotations

@SuppressWarnings:unused

Exceptions

EmptyException:: always

emptySetter back to summary

emptySetter	back to summary
private static void emptySetter(Object ignored, Object v) throws EmptyException This method fills `set` when the implementation leaves it blank. Parameters ignored:Object object to operate on v:Object ignored too Annotations @SuppressWarnings:unused Exceptions EmptyException: always

private static void emptySetter(Object ignored, Object v) throws EmptyException

This method fills set when the implementation leaves it blank.

Parameters

ignored:Object: object to operate on
v:Object: ignored too

Annotations

@SuppressWarnings:unused

Exceptions

EmptyException:: always

getset_get_doc	back to summary
pack-priv static Object getset_get_doc(PyGetSetDescr descr)

getWrappedDelete back to summary

getWrappedDelete	back to summary
pack-priv abstract MethodHandle getWrappedDelete(Class<?> selfClass) Return the deleter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`)

pack-priv abstract MethodHandle getWrappedDelete(Class<?> selfClass)

Return the deleter contained in this descriptor applicable to the Java class supplied. The Descriptor#objclass is consulted to make this determination. If the class is not an accepted implementation of objclass, an empty slot handle (with the correct signature) is returned.

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

getWrappedGet back to summary

getWrappedGet	back to summary
pack-priv abstract MethodHandle getWrappedGet(Class<?> selfClass) Return the getter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`)

pack-priv abstract MethodHandle getWrappedGet(Class<?> selfClass)

Return the getter contained in this descriptor applicable to the Java class supplied. The Descriptor#objclass is consulted to make this determination. If the class is not an accepted implementation of objclass, an empty slot handle (with the correct signature) is returned.

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

getWrappedSet back to summary

getWrappedSet	back to summary
pack-priv abstract MethodHandle getWrappedSet(Class<?> selfClass) Return the setter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`)

pack-priv abstract MethodHandle getWrappedSet(Class<?> selfClass)

Return the setter contained in this descriptor applicable to the Java class supplied. The Descriptor#objclass is consulted to make this determination. If the class is not an accepted implementation of objclass, an empty slot handle (with the correct signature) is returned.

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

optional	back to summary
pack-priv abstract boolean optional() The attribute may be deleted. Returns:boolean true if the attribute may be deleted.

optional

back to summary

pack-priv abstract boolean optional()

The attribute may be deleted.

Returns:boolean: true if the attribute may be deleted.

readonly	back to summary
pack-priv abstract boolean readonly() The attribute may not be set or deleted. Returns:boolean true if the attribute may not be set or deleted

readonly

back to summary

pack-priv abstract boolean readonly()

The attribute may not be set or deleted.

Returns:boolean: true if the attribute may not be set or deleted

org.python.core back to summary

pack-priv Class PyGetSetDescr.Multiple

Class Inheritance

extends PyGetSetDescr

A PyGetSetDescr to use for a get-set attribute when the owning Python type has multiple accepted implementations.

Field Summary

Modifier and Type	Field and Description
protected final MethodHandle[]	delete Handles for the particular implementations of the deleter.
protected final MethodHandle[]	get Handles for the particular implementations of the getter.
protected final MethodHandle[]	set Handles for the particular implementations of the setter.

Inherited from org.python.core.PyGetSetDescr:: DELETER doc GETTER klass LOOKUP SETTER TYPE

Constructor Summary

Access	Constructor and Description
pack-priv	Multiple(PyType to which descriptor applies objclass, String of attribute name, MethodHandle[] operation get, MethodHandle[] operation set, MethodHandle[] operation delete, String documentation string doc, Class<?> Java class of attribute accepted by set method klass) Construct a get-set descriptor, identifying by an array of method handles the implementation methods applicable to `objclass`.

Method Summary

Modifier and Type	Method and Description
pack-priv MethodHandle	getWrappedDelete(Class<?> Java class of the `self` argument selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedDelete. Return the deleter contained in this descriptor applicable to the Java class supplied.
pack-priv MethodHandle	getWrappedGet(Class<?> Java class of the `self` argument selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedGet. Return the getter contained in this descriptor applicable to the Java class supplied.
pack-priv MethodHandle	getWrappedSet(Class<?> Java class of the `self` argument selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedSet. Return the setter contained in this descriptor applicable to the Java class supplied.
pack-priv boolean	optional() Implements abstract org.python.core.PyGetSetDescr.optional. The attribute may be deleted.
pack-priv boolean	readonly() Implements abstract org.python.core.PyGetSetDescr.readonly. The attribute may not be set or deleted.

Inherited from org.python.core.PyGetSetDescr:: __delete____get____set__getset_get_doc

Field Detail

delete	back to summary
protected final MethodHandle[] delete Handles for the particular implementations of the deleter. The method type of each is `(O)V`.

get	back to summary
protected final MethodHandle[] get Handles for the particular implementations of the getter. The method type of each is `(O)O`.

set	back to summary
protected final MethodHandle[] set Handles for the particular implementations of the setter. The method type of each is `(O,O)V`.

Constructor Detail

Multiple back to summary

Multiple	back to summary
pack-priv Multiple(PyType objclass, String name, MethodHandle[] get, MethodHandle[] set, MethodHandle[] delete, String doc, Class<?> klass) Construct a get-set descriptor, identifying by an array of method handles the implementation methods applicable to `objclass`. These methods will be identified in an implementation by annotations `Getter`, `Setter`, `Deleter`. Parameters objclass:PyType to which descriptor applies name:String of attribute get:MethodHandle[] operation set:MethodHandle[] operation delete:MethodHandle[] operation doc:String documentation string klass:Class<?> Java class of attribute accepted by set method

pack-priv Multiple(PyType objclass, String name, MethodHandle[] get, MethodHandle[] set, MethodHandle[] delete, String doc, Class<?> klass)

Construct a get-set descriptor, identifying by an array of method handles the implementation methods applicable to objclass. These methods will be identified in an implementation by annotations Getter, Setter, Deleter.

Parameters

objclass:PyType: to which descriptor applies
name:String: of attribute
get:MethodHandle[]: operation
set:MethodHandle[]: operation
delete:MethodHandle[]: operation
doc:String: documentation string
klass:Class<?>: Java class of attribute accepted by set method

Method Detail

getWrappedDelete back to summary

getWrappedDelete	back to summary
pack-priv MethodHandle getWrappedDelete(Class<?> selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedDelete. Doc from org.python.core.PyGetSetDescr.getWrappedDelete. Return the deleter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. The method will check that the type of self matches `Descriptor#objclass`, according to its `PyType#indexAccepted(Class)`. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`) Annotations @Override

pack-priv MethodHandle getWrappedDelete(Class<?> selfClass)

Implements abstract org.python.core.PyGetSetDescr.getWrappedDelete.

Doc from org.python.core.PyGetSetDescr.getWrappedDelete.

The method will check that the type of self matches Descriptor#objclass, according to its PyType#indexAccepted(Class).

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

Annotations

@Override

getWrappedGet back to summary

getWrappedGet	back to summary
pack-priv MethodHandle getWrappedGet(Class<?> selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedGet. Doc from org.python.core.PyGetSetDescr.getWrappedGet. Return the getter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. The method will check that the type of self matches `Descriptor#objclass`, according to its `PyType#indexAccepted(Class)`. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`) Annotations @Override

pack-priv MethodHandle getWrappedGet(Class<?> selfClass)

Implements abstract org.python.core.PyGetSetDescr.getWrappedGet.

Doc from org.python.core.PyGetSetDescr.getWrappedGet.

The method will check that the type of self matches Descriptor#objclass, according to its PyType#indexAccepted(Class).

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

Annotations

@Override

getWrappedSet back to summary

getWrappedSet	back to summary
pack-priv MethodHandle getWrappedSet(Class<?> selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedSet. Doc from org.python.core.PyGetSetDescr.getWrappedSet. Return the setter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. The method will check that the type of self matches `Descriptor#objclass`, according to its `PyType#indexAccepted(Class)`. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`) Annotations @Override

pack-priv MethodHandle getWrappedSet(Class<?> selfClass)

Implements abstract org.python.core.PyGetSetDescr.getWrappedSet.

Doc from org.python.core.PyGetSetDescr.getWrappedSet.

The method will check that the type of self matches Descriptor#objclass, according to its PyType#indexAccepted(Class).

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

Annotations

@Override

optional	back to summary
pack-priv boolean optional() Implements abstract org.python.core.PyGetSetDescr.optional. Doc from org.python.core.PyGetSetDescr.optional. The attribute may be deleted. Returns:boolean true if the attribute may be deleted. Annotations @Override

optional

back to summary

pack-priv boolean optional()

Implements abstract org.python.core.PyGetSetDescr.optional.

Doc from org.python.core.PyGetSetDescr.optional.

The attribute may be deleted.

Returns:boolean

true if the attribute may be deleted.

Annotations

@Override

readonly	back to summary
pack-priv boolean readonly() Implements abstract org.python.core.PyGetSetDescr.readonly. Doc from org.python.core.PyGetSetDescr.readonly. The attribute may not be set or deleted. Returns:boolean true if the attribute may not be set or deleted Annotations @Override

readonly

back to summary

pack-priv boolean readonly()

Implements abstract org.python.core.PyGetSetDescr.readonly.

Doc from org.python.core.PyGetSetDescr.readonly.

The attribute may not be set or deleted.

Returns:boolean

true if the attribute may not be set or deleted

Annotations

@Override

org.python.core back to summary

pack-priv Class PyGetSetDescr.Single

Class Inheritance

extends PyGetSetDescr

A PyGetSetDescr to use for a get-set attribute when the owning Python type has just one accepted implementation.

Field Summary

Modifier and Type	Field and Description
pack-priv final MethodHandle	delete A handle on the deleter defined by the unique implementation of `Descriptor#objclass` for this attribute.
pack-priv final MethodHandle	get A handle on the getter defined by the unique implementation of `Descriptor#objclass` for this attribute.
pack-priv final MethodHandle	set A handle on the setter defined by the unique implementation of `Descriptor#objclass` for this attribute.

Inherited from org.python.core.PyGetSetDescr:: DELETER doc GETTER klass LOOKUP SETTER TYPE

Constructor Summary

Access Constructor and Description

Access	Constructor and Description
pack-priv	Single(PyType to which descriptor applies objclass, String of attribute name, MethodHandle handle on getter method (or `null`) get, MethodHandle handle on setter method (or `null`) set, MethodHandle handle on deleter method (or `null`) delete, String documentation string doc, Class<?> Java class of attribute accepted by set method klass) Construct a get-set descriptor, identifying by a method handle each implementation method applicable to `objclass`.

pack-priv

Single(PyType

to which descriptor applies

objclass, String

of attribute

name, MethodHandle

handle on getter method (or null)

get, MethodHandle

handle on setter method (or null)

set, MethodHandle

handle on deleter method (or null)

delete, String

documentation string

doc, Class<?>

Java class of attribute accepted by set method

klass)

Construct a get-set descriptor, identifying by a method handle each implementation method applicable to objclass.

Method Summary

Modifier and Type	Method and Description
pack-priv MethodHandle	getWrappedDelete(Class<?> Java class of the `self` argument selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedDelete. Return the deleter contained in this descriptor applicable to the Java class supplied.
pack-priv MethodHandle	getWrappedGet(Class<?> Java class of the `self` argument selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedGet. Return the getter contained in this descriptor applicable to the Java class supplied.
pack-priv MethodHandle	getWrappedSet(Class<?> Java class of the `self` argument selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedSet. Return the setter contained in this descriptor applicable to the Java class supplied.
pack-priv boolean	optional() Implements abstract org.python.core.PyGetSetDescr.optional. The attribute may be deleted.
pack-priv boolean	readonly() Implements abstract org.python.core.PyGetSetDescr.readonly. The attribute may not be set or deleted.

Inherited from org.python.core.PyGetSetDescr:: __delete____get____set__getset_get_doc

Field Detail

delete	back to summary
pack-priv final MethodHandle delete A handle on the deleter defined by the unique implementation of `Descriptor#objclass` for this attribute. The method type is `DELETER` = `(O)V`.

get	back to summary
pack-priv final MethodHandle get A handle on the getter defined by the unique implementation of `Descriptor#objclass` for this attribute. The method type is `GETTER` = `(O)O`.

set	back to summary
pack-priv final MethodHandle set A handle on the setter defined by the unique implementation of `Descriptor#objclass` for this attribute. The method type is `SETTER` = `(O,O)V`.

Constructor Detail

Single back to summary

Single	back to summary
pack-priv Single(PyType objclass, String name, MethodHandle get, MethodHandle set, MethodHandle delete, String doc, Class<?> klass) Construct a get-set descriptor, identifying by a method handle each implementation method applicable to `objclass`. These methods will be identified in an implementation by annotations `Getter`, `Setter`, `Deleter`. Parameters objclass:PyType to which descriptor applies name:String of attribute get:MethodHandle handle on getter method (or `null`) set:MethodHandle handle on setter method (or `null`) delete:MethodHandle handle on deleter method (or `null`) doc:String documentation string klass:Class<?> Java class of attribute accepted by set method

pack-priv Single(PyType objclass, String name, MethodHandle get, MethodHandle set, MethodHandle delete, String doc, Class<?> klass)

Construct a get-set descriptor, identifying by a method handle each implementation method applicable to objclass. These methods will be identified in an implementation by annotations Getter, Setter, Deleter.

Parameters

objclass:PyType: to which descriptor applies
name:String: of attribute
get:MethodHandle: handle on getter method (or null)
set:MethodHandle: handle on setter method (or null)
delete:MethodHandle: handle on deleter method (or null)
doc:String: documentation string
klass:Class<?>: Java class of attribute accepted by set method

Method Detail

getWrappedDelete back to summary

getWrappedDelete	back to summary
pack-priv MethodHandle getWrappedDelete(Class<?> selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedDelete. Doc from org.python.core.PyGetSetDescr.getWrappedDelete. Return the deleter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`) Annotations @Override

pack-priv MethodHandle getWrappedDelete(Class<?> selfClass)

Implements abstract org.python.core.PyGetSetDescr.getWrappedDelete.

Doc from org.python.core.PyGetSetDescr.getWrappedDelete.

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

Annotations

@Override

getWrappedGet back to summary

getWrappedGet	back to summary
pack-priv MethodHandle getWrappedGet(Class<?> selfClass) Implements abstract org.python.core.PyGetSetDescr.getWrappedGet. Doc from org.python.core.PyGetSetDescr.getWrappedGet. Return the getter contained in this descriptor applicable to the Java class supplied. The `Descriptor#objclass` is consulted to make this determination. If the class is not an accepted implementation of `objclass`, an empty slot handle (with the correct signature) is returned. Parameters selfClass:Class<?> Java class of the `self` argument Returns:MethodHandle corresponding handle (or `slot.getEmpty()`) Annotations @Override

pack-priv MethodHandle getWrappedGet(Class<?> selfClass)

Implements abstract org.python.core.PyGetSetDescr.getWrappedGet.

Doc from org.python.core.PyGetSetDescr.getWrappedGet.

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

Annotations

@Override

getWrappedSet back to summary

pack-priv MethodHandle getWrappedSet(Class<?> selfClass)

Implements abstract org.python.core.PyGetSetDescr.getWrappedSet.

Doc from org.python.core.PyGetSetDescr.getWrappedSet.

Parameters

selfClass:Class<?>: Java class of the self argument

Returns:MethodHandle

corresponding handle (or slot.getEmpty())

Annotations

@Override

optional

back to summary

pack-priv boolean optional()

Implements abstract org.python.core.PyGetSetDescr.optional.

Doc from org.python.core.PyGetSetDescr.optional.

The attribute may be deleted.

Returns:boolean

true if the attribute may be deleted.

Annotations

@Override

readonly

back to summary

pack-priv boolean readonly()

Implements abstract org.python.core.PyGetSetDescr.readonly.

Doc from org.python.core.PyGetSetDescr.readonly.

The attribute may not be set or deleted.

Returns:boolean

true if the attribute may not be set or deleted

Annotations

@Override

org.python.core back to summary

pack-priv final Enum PyGetSetDescr.Type

Class Inheritance

extends Enum<PyGetSetDescr.Type>

java.lang.Object
java.lang.Enum
org.python.core.PyGetSetDescr.Type

A mapping from symbolic names for the types of method handle in a PyGetSetDescr to other properties like the method handle type.

Field Summary

Modifier and Type	Field and Description
public static final PyGetSetDescr.Type	Deleter
public static final PyGetSetDescr.Type	Getter
pack-priv final MethodType	methodType
public static final PyGetSetDescr.Type	Setter

Constructor Summary

Access	Constructor and Description
private	Type(MethodType mt)

Method Summary

Modifier and Type	Method and Description
pack-priv static PyGetSetDescr.Type	Returns: matching type or `null` fromMethodType(MethodType to match mt) Map the method handle type back to the `PyGetSetDescr.Type` that has it or `null`.
public static PyGetSetDescr.Type	valueOf(String name)
public static PyGetSetDescr.Type[]	values()

Inherited from java.lang.Enum:: clone compareTo describeConstable equals finalize getDeclaringClass hashCode name ordinal toString valueOf

Field Detail

Deleter	back to summary
public static final PyGetSetDescr.Type Deleter

Getter	back to summary
public static final PyGetSetDescr.Type Getter

methodType	back to summary
pack-priv final MethodType methodType

Setter	back to summary
public static final PyGetSetDescr.Type Setter

Constructor Detail

Type	back to summary
private Type(MethodType mt)

Method Detail

fromMethodType back to summary

pack-priv static PyGetSetDescr.Type fromMethodType(MethodType mt)

Map the method handle type back to the PyGetSetDescr.Type that has it or null.

Parameters

mt:MethodType: to match

Returns:PyGetSetDescr.Type

matching type or null

valueOf	back to summary
public static PyGetSetDescr.Type valueOf(String name)

values	back to summary
public static PyGetSetDescr.Type[] values()

pack-priv abstract Class PyGetSetDescr

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pack-priv Class PyGetSetDescr.Multiple

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pack-priv Class PyGetSetDescr.Single

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pack-priv final Enum PyGetSetDescr.Type

Field Summary

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