Struct WireBox

#[repr(C)]
pub struct WireBox<T> { /* private fields */ }

A boxed (optional) FIDL value.

Implementations

impl<T> WireBox<T>

pub fn encode_present(slot: Slot<'_, Self>)

Encodes that a value is present in a slot.

pub fn encode_absent(slot: Slot<'_, Self>)

Encodes that a value is absent in a slot.

pub fn is_some(&self) -> bool

Returns whether the value is present.

pub fn is_none(&self) -> bool

Returns whether the value is absent.

pub fn as_ref(&self) -> Option<&T>

Returns a reference to the boxed value, if any.

Trait Implementations

impl<T: Debug> Debug for WireBox<T>

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

Formats the value using the given formatter.

impl<D: Decoder + ?Sized, T: Decode<D>> Decode<D> for WireBox<T>

fn decode(slot: Slot<'_, Self>, decoder: &mut D) -> Result<(), DecodeError>

Decodes a value into a slot using a decoder.

impl<T> Drop for WireBox<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T: TakeFrom<WT>, WT> TakeFrom<WireBox<WT>> for Option<T>

fn take_from(from: &WireBox<WT>) -> Self

Converts from the given T, taking any resources that can’t be cloned.

const COPY_OPTIMIZATION: CopyOptimization<Self> = _

An optimization flag that allows the bytes of this type to be copied directly during conversion instead of calling take_from.

impl<T> ZeroPadding for WireBox<T>

unsafe fn zero_padding(_: *mut Self)

Writes zeroes to the padding for this type, if any.

impl<T: Send> Send for WireBox<T>

impl<T: Sync> Sync for WireBox<T>