Struct PyVariableClassObject 

#[doc(hidden)]
#[repr(C)]
pub struct PyVariableClassObject<T: PyClassImpl> {
    ob_base: <T::BaseType as PyClassBaseType>::LayoutAsBase,
}

A layout for a PyClassObject with an unknown sized base type.

Utilises PEP-697

Fields

ob_base: <T::BaseType as PyClassBaseType>::LayoutAsBase

Implementations

impl<T: PyClass<Layout = Self>> PyVariableClassObject<T>

unsafe fn get_contents_of_obj( obj: *mut PyObject, ) -> *mut MaybeUninit<PyClassObjectContents<T>>

Available on Py_3_12 only.

Safety

• obj must have the layout that the implementation is expecting
• thread must be attached to the interpreter

fn get_contents_ptr(&self) -> *mut PyClassObjectContents<T>

Available on Py_3_12 only.

Trait Implementations

impl<T: PyClass<Layout = Self>> PyClassObjectBaseLayout<T> for PyVariableClassObject<T>

where <T::BaseType as PyClassBaseType>::LayoutAsBase: PyClassObjectBaseLayout<T::BaseType>,

Available on Py_3_12 only.

fn ensure_threadsafe(&self)

fn check_threadsafe(&self) -> Result<(), PyBorrowError>

unsafe fn tp_dealloc(py: Python<'_>, slf: *mut PyObject)

Implementation of tp_dealloc.

impl<T: PyClass<Layout = Self>> PyClassObjectLayout<T> for PyVariableClassObject<T>

Available on Py_3_12 only.

const CONTENTS_OFFSET: PyObjectOffset

Gets the offset of the contents from the start of the struct in bytes.

const BASIC_SIZE: Py_ssize_t

Used to set PyType_Spec::basicsize (docs)

const DICT_OFFSET: PyObjectOffset

Gets the offset of the dictionary from the start of the struct in bytes.

const WEAKLIST_OFFSET: PyObjectOffset

Gets the offset of the weakref list from the start of the struct in bytes.

unsafe fn contents_uninit( obj: *mut PyObject, ) -> *mut MaybeUninit<PyClassObjectContents<T>>

Obtain a pointer to the contents of an uninitialized PyObject of this type.

fn get_ptr(&self) -> *mut T

Obtain a pointer to the pyclass struct.

fn ob_base(&self) -> &<T::BaseType as PyClassBaseType>::LayoutAsBase

obtain a reference to the data at the start of the PyObject.

fn contents(&self) -> &PyClassObjectContents<T>

Obtain a reference to the structure that contains the pyclass struct and associated metadata.

fn contents_mut(&mut self) -> &mut PyClassObjectContents<T>

Obtain a mutable reference to the structure that contains the pyclass struct and associated metadata.

fn borrow_checker( &self, ) -> &<T::PyClassMutability as PyClassMutability>::Checker

impl<T: PyClassImpl> PyLayout<T> for PyVariableClassObject<T>