Struct PyTypeSlots 

#[non_exhaustive]
pub struct PyTypeSlots {

    pub basicsize: usize,
    pub itemsize: usize,
    pub as_number: PyNumberSlots,
    pub as_sequence: PySequenceSlots,
    pub as_mapping: PyMappingSlots,
    pub hash: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyHash>>>,
    pub call: AtomicCell<Option<fn(&PyObject, FuncArgs, &VirtualMachine) -> PyResult>>,
    pub vectorcall: AtomicCell<Option<fn(&PyObject, Vec<PyObjectRef>, usize, Option<&[PyObjectRef]>, &VirtualMachine) -> PyResult>>,
    pub str: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyRef<PyStr>>>>,
    pub repr: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyRef<PyStr>>>>,
    pub getattro: AtomicCell<Option<fn(&PyObject, &Py<PyStr>, &VirtualMachine) -> PyResult>>,
    pub setattro: AtomicCell<Option<fn(&PyObject, &Py<PyStr>, PySetterValue, &VirtualMachine) -> PyResult<()>>>,
    pub as_buffer: AtomicCell<Option<fn(&PyObject, BufferFlags, &VirtualMachine) -> PyResult<PyBuffer>>>,
    pub has_release_buffer: AtomicCell<bool>,
    pub python_release_buffer: AtomicCell<bool>,
    pub richcompare: AtomicCell<Option<fn(&PyObject, &PyObject, PyComparisonOp, &VirtualMachine) -> PyResult<Either<PyObjectRef, PyComparisonValue>>>>,
    pub iter: AtomicCell<Option<fn(PyObjectRef, &VirtualMachine) -> PyResult>>,
    pub iternext: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyIterReturn>>>,
    pub methods: &'static [PyMethodDef],
    pub flags: AtomicPyTypeFlags,
    pub doc: ItemDoc,
    pub descr_get: AtomicCell<Option<fn(&PyObject, Option<&PyObject>, Option<&PyObject>, &VirtualMachine) -> PyResult>>,
    pub descr_set: AtomicCell<Option<fn(&PyObject, PyObjectRef, PySetterValue, &VirtualMachine) -> PyResult<()>>>,
    pub init: AtomicCell<Option<fn(&PyObject, FuncArgs, &VirtualMachine) -> PyResult<()>>>,
    pub alloc: AtomicCell<Option<fn(PyTypeRef, usize, &VirtualMachine) -> PyResult>>,
    pub new: AtomicCell<Option<fn(PyTypeRef, FuncArgs, &VirtualMachine) -> PyResult>>,
    pub del: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<()>>>,
    pub del_needed: AtomicCell<Option<DelNeededFunc>>,
    pub member_count: usize,
    /* private fields */
}

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

basicsize: usize

Full tp_basicsize: object header plus payload. 0 before type creation means “inherit the base size”.

itemsize: usize

as_number: PyNumberSlots

as_sequence: PySequenceSlots

as_mapping: PyMappingSlots

hash: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyHash>>>

call: AtomicCell<Option<fn(&PyObject, FuncArgs, &VirtualMachine) -> PyResult>>

vectorcall: AtomicCell<Option<fn(&PyObject, Vec<PyObjectRef>, usize, Option<&[PyObjectRef]>, &VirtualMachine) -> PyResult>>

str: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyRef<PyStr>>>>

repr: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyRef<PyStr>>>>

getattro: AtomicCell<Option<fn(&PyObject, &Py<PyStr>, &VirtualMachine) -> PyResult>>

setattro: AtomicCell<Option<fn(&PyObject, &Py<PyStr>, PySetterValue, &VirtualMachine) -> PyResult<()>>>

as_buffer: AtomicCell<Option<fn(&PyObject, BufferFlags, &VirtualMachine) -> PyResult<PyBuffer>>>

has_release_buffer: AtomicCell<bool>

bf_releasebuffer: releasing an export of this type is observable, so the type exposes __release_buffer__.

python_release_buffer: AtomicCell<bool>

True when a Python-level __release_buffer__ must be invoked on release.

richcompare: AtomicCell<Option<fn(&PyObject, &PyObject, PyComparisonOp, &VirtualMachine) -> PyResult<Either<PyObjectRef, PyComparisonValue>>>>

iter: AtomicCell<Option<fn(PyObjectRef, &VirtualMachine) -> PyResult>>

iternext: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<PyIterReturn>>>

methods: &'static [PyMethodDef]

flags: AtomicPyTypeFlags

doc: ItemDoc

descr_get: AtomicCell<Option<fn(&PyObject, Option<&PyObject>, Option<&PyObject>, &VirtualMachine) -> PyResult>>

descr_set: AtomicCell<Option<fn(&PyObject, PyObjectRef, PySetterValue, &VirtualMachine) -> PyResult<()>>>

init: AtomicCell<Option<fn(&PyObject, FuncArgs, &VirtualMachine) -> PyResult<()>>>

alloc: AtomicCell<Option<fn(PyTypeRef, usize, &VirtualMachine) -> PyResult>>

new: AtomicCell<Option<fn(PyTypeRef, FuncArgs, &VirtualMachine) -> PyResult>>

del: AtomicCell<Option<fn(&PyObject, &VirtualMachine) -> PyResult<()>>>

del_needed: AtomicCell<Option<DelNeededFunc>>

Optional fast, VM-free predicate checked before del is invoked via drop_slow_inner/try_call_finalizer. Those call sites otherwise pay for attaching to a VM (with_vm) unconditionally whenever a type has a del slot at all, even when the type’s own del is a documented no-op for the object’s current state (e.g. an already-exhausted generator or coroutine). Returning false skips the del call entirely, avoiding that VM lookup; None (the default) preserves the prior behavior of always calling del.

member_count: usize

Implementations

impl PyTypeSlots

pub fn new(name: &'static str, flags: PyTypeFlags) -> Self

pub fn heap_default() -> Self

Trait Implementations

impl Debug for PyTypeSlots

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PyTypeSlots

fn default() -> Self

Returns the “default value” for a type.