Struct vtable::VOffset

#[repr(C)]
pub struct VOffset<Base, T: ?Sized + VTableMeta, PinFlag = NotPinned> { /* fields omitted */ }

Represents an offset to a field of type matching the vtable, within the Base container structure.

Implementations

impl<Base, T: ?Sized + VTableMeta, Flag> VOffset<Base, T, Flag>

pub fn apply(self, base: &Base) -> VRef<'_, T>

Apply this offset to a reference to the base to obtain a VRef with the same lifetime as the base lifetime

pub fn apply_mut(self, base: &mut Base) -> VRefMut<'_, T>

Apply this offset to a reference to the base to obtain a VRefMut with the same lifetime as the base lifetime

pub fn new<X: HasStaticVTable<T>>(o: FieldOffset<Base, X, Flag>) -> Self

Create an new VOffset from a [FieldOffset] where the target type implement the HasStaticVTable trait.

pub unsafe fn from_raw(vtable: &'static T::VTable, offset: usize) -> Self

Create a new VOffset from raw data

Safety

There must be a field that matches the vtable at offset T in base.

impl<Base, T: ?Sized + VTableMeta> VOffset<Base, T, AllowPin>

pub fn apply_pin(self, base: Pin<&Base>) -> Pin<VRef<'_, T>>

Apply this offset to a reference to the base to obtain a Pin<VRef<'a, T>> with the same lifetime as the base lifetime

Trait Implementations

impl<Base, T: ?Sized + VTableMeta, Flag> Clone for VOffset<Base, T, Flag>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Base, T: ?Sized + VTableMeta, PinFlag> Debug for VOffset<Base, T, PinFlag>

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

Formats the value using the given formatter.

impl<Base, T: ?Sized + VTableMeta, Flag> Copy for VOffset<Base, T, Flag>