Struct ListDef 

#[repr(C)]
pub struct ListDef {
    pub vtable: &'static ListVTable,
    pub type_ops: Option<&'static ListTypeOps>,
    pub t: &'static Shape,
}

Fields for list types

Fields

vtable: &'static ListVTable

vtable for interacting with the list (can be type-erased/shared)

type_ops: Option<&'static ListTypeOps>

Per-type operations that must be monomorphized (optional).

If None, uses the functions in vtable. If Some, these operations are used instead of the corresponding vtable functions, allowing the main vtable to be shared across all instantiations (e.g., one vtable for all Vec<T>).

t: &'static Shape

shape of the items in the list

Implementations

impl ListDef

pub const fn new(vtable: &'static ListVTable, t: &'static Shape) -> ListDef

Construct a ListDef from its vtable and element shape.

pub const fn with_type_ops( vtable: &'static ListVTable, type_ops: &'static ListTypeOps, t: &'static Shape, ) -> ListDef

Construct a ListDef with both shared vtable and per-T type operations.

pub const fn t(&self) -> &'static Shape

Returns the shape of the items in the list

pub fn init_in_place_with_capacity( &self, ) -> Option<unsafe fn(PtrUninit, usize) -> PtrMut>

Returns the init_in_place_with_capacity function, checking type_ops first.

pub fn push(&self) -> Option<unsafe fn(PtrMut, PtrMut)>

Returns the push function, checking type_ops first.

pub fn set_len(&self) -> Option<unsafe fn(PtrMut, usize)>

Returns the set_len function for direct-fill operations.

pub fn as_mut_ptr_typed(&self) -> Option<unsafe fn(PtrMut) -> *mut u8>

Returns the as_mut_ptr_typed function for direct-fill operations.

pub fn reserve(&self) -> Option<unsafe fn(PtrMut, usize)>

Returns the reserve function for direct-fill operations.

pub fn capacity(&self) -> Option<unsafe fn(PtrConst) -> usize>

Returns the capacity function for direct-fill operations.

pub fn iter_vtable(&self) -> Option<&'static IterVTable<PtrConst>>

Returns the iterator vtable, checking type_ops first.

Returns None if no type_ops is set (no iterator support).

Trait Implementations

impl Clone for ListDef

fn clone(&self) -> ListDef

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ListDef

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

Formats the value using the given formatter.

impl Facet<'_> for ListDef

const SHAPE: &'static Shape

The shape of this type, including: whether it’s a Struct, an Enum, something else?

impl Copy for ListDef