Struct WireOptionalString

pub struct WireOptionalString { /* private fields */ }

An optional FIDL string

Implementations

impl WireOptionalString

pub fn encode_present(slot: Slot<'_, Self>, len: u64)

Encodes that a string is present in a slot.

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

Encodes that a string is absent in a slot.

pub fn is_some(&self) -> bool

Returns whether the optional string is present.

pub fn is_none(&self) -> bool

Returns whether the optional string is absent.

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

Returns a reference to the underlying string, if any.

Trait Implementations

impl Debug for WireOptionalString

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

Formats the value using the given formatter.

impl<D: Decoder + ?Sized> Decode<D> for WireOptionalString

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

Decodes a value into a slot using a decoder.

impl TakeFrom<WireOptionalString> for Option<String>

fn take_from(from: &WireOptionalString) -> 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 ZeroPadding for WireOptionalString

unsafe fn zero_padding(ptr: *mut Self)

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