Trait EncodeOption

pub unsafe trait EncodeOption<E>: Sized + EncodableOption
where
    E: ?Sized,
{
    // Required method
    fn encode_option(
        this: Option<Self>,
        encoder: &mut E,
        out: &mut MaybeUninit<Self::EncodedOption>,
    ) -> Result<(), EncodeError>;
}

Encodes an optional value.

Safety

encode_option must initialize all non-padding bytes of out.

Required Methods

fn encode_option( this: Option<Self>, encoder: &mut E, out: &mut MaybeUninit<Self::EncodedOption>, ) -> Result<(), EncodeError>

Encodes this optional value into an encoder and output.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<E> EncodeOption<E> for &str

where E: Encoder + ?Sized,

fn encode_option( this: Option<&str>, encoder: &mut E, out: &mut MaybeUninit<<&str as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for bool

where E: Encoder + ?Sized,

fn encode_option( this: Option<bool>, encoder: &mut E, out: &mut MaybeUninit<<bool as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for f32

where E: Encoder + ?Sized,

fn encode_option( this: Option<f32>, encoder: &mut E, out: &mut MaybeUninit<<f32 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for f64

where E: Encoder + ?Sized,

fn encode_option( this: Option<f64>, encoder: &mut E, out: &mut MaybeUninit<<f64 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for i8

where E: Encoder + ?Sized,

fn encode_option( this: Option<i8>, encoder: &mut E, out: &mut MaybeUninit<<i8 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for i16

where E: Encoder + ?Sized,

fn encode_option( this: Option<i16>, encoder: &mut E, out: &mut MaybeUninit<<i16 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for i32

where E: Encoder + ?Sized,

fn encode_option( this: Option<i32>, encoder: &mut E, out: &mut MaybeUninit<<i32 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for i64

where E: Encoder + ?Sized,

fn encode_option( this: Option<i64>, encoder: &mut E, out: &mut MaybeUninit<<i64 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for u8

where E: Encoder + ?Sized,

fn encode_option( this: Option<u8>, encoder: &mut E, out: &mut MaybeUninit<<u8 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for u16

where E: Encoder + ?Sized,

fn encode_option( this: Option<u16>, encoder: &mut E, out: &mut MaybeUninit<<u16 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for u32

where E: Encoder + ?Sized,

fn encode_option( this: Option<u32>, encoder: &mut E, out: &mut MaybeUninit<<u32 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for u64

where E: Encoder + ?Sized,

fn encode_option( this: Option<u64>, encoder: &mut E, out: &mut MaybeUninit<<u64 as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for ()

where E: Encoder + ?Sized,

fn encode_option( this: Option<()>, encoder: &mut E, out: &mut MaybeUninit<<() as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E> EncodeOption<E> for String

where E: Encoder + ?Sized,

fn encode_option( this: Option<String>, encoder: &mut E, out: &mut MaybeUninit<<String as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E, T> EncodeOption<E> for &[T]

where E: Encoder + ?Sized, T: EncodeRef<E>,

fn encode_option( this: Option<&[T]>, encoder: &mut E, out: &mut MaybeUninit<<&[T] as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E, T> EncodeOption<E> for &T

where T: EncodeOptionRef<E>, E: ?Sized,

fn encode_option( this: Option<&T>, encoder: &mut E, out: &mut MaybeUninit<<&T as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E, T> EncodeOption<E> for Box<T>

where T: EncodeOption<E>, E: ?Sized,

fn encode_option( this: Option<Box<T>>, encoder: &mut E, out: &mut MaybeUninit<<Box<T> as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

impl<E, T> EncodeOption<E> for Vec<T>

where E: Encoder + ?Sized, T: Encode<E>,

fn encode_option( this: Option<Vec<T>>, encoder: &mut E, out: &mut MaybeUninit<<Vec<T> as EncodableOption>::EncodedOption>, ) -> Result<(), EncodeError>

Implementors

impl<E> EncodeOption<E> for Channel

where E: HandleEncoder + ?Sized,

impl<E> EncodeOption<E> for Handle

where E: HandleEncoder + ?Sized,

impl<E> EncodeOption<E> for WireF32

where E: Encoder + ?Sized,

impl<E> EncodeOption<E> for WireF64

where E: Encoder + ?Sized,

impl<E> EncodeOption<E> for WireI16

where E: Encoder + ?Sized,

impl<E> EncodeOption<E> for WireI32

where E: Encoder + ?Sized,

impl<E> EncodeOption<E> for WireI64

where E: Encoder + ?Sized,

impl<E> EncodeOption<E> for WireU16

where E: Encoder + ?Sized,

impl<E> EncodeOption<E> for WireU32

where E: Encoder + ?Sized,

impl<E> EncodeOption<E> for WireU64

where E: Encoder + ?Sized,

impl<E, T, P> EncodeOption<E> for ClientEnd<T, P>

where T: EncodeOption<E>, P: 'static, E: ?Sized,

impl<E, T, P> EncodeOption<E> for ServerEnd<T, P>

where T: EncodeOption<E>, P: 'static, E: ?Sized,