Struct WireOptionalString

pub struct WireOptionalString<'buf> { /* private fields */ }

An optional FIDL string

Implementations

impl<'buf> WireOptionalString<'buf>

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 take(&mut self) -> Option<WireString<'buf>>

Takes the string out of the option, if any.

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

Returns a reference to the underlying string, if any.

pub fn as_mut(&mut self) -> Option<&mut WireString<'buf>>

Returns a mutable 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<'buf, D: Decoder<'buf> + ?Sized> Decode<D> for WireOptionalString<'buf>

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

Decodes a value into a slot using a decoder.

impl<'buf> Default for WireOptionalString<'buf>

fn default() -> WireOptionalString<'buf>

Returns the “default value” for a type.

impl TakeFrom<WireOptionalString<'_>> for Option<String>

fn take_from(from: &mut WireOptionalString<'_>) -> Self

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