Trait VariantEncoder 

pub trait VariantEncoder: Sized {
    type Cx: Context<Error = Self::Error>;
    type Error;
    type Mode: 'static;
    type EncodeTag<'this>: Encoder<Cx = Self::Cx, Error = Self::Error, Mode = Self::Mode>
       where Self: 'this;
    type EncodeData<'this>: Encoder<Cx = Self::Cx, Error = Self::Error, Mode = Self::Mode>
       where Self: 'this;

    // Required methods
    fn cx(&self) -> Self::Cx;
    fn encode_tag(&mut self) -> Result<Self::EncodeTag<'_>, Self::Error>;
    fn encode_data(&mut self) -> Result<Self::EncodeData<'_>, Self::Error>;
    fn finish_variant(self) -> Result<(), Self::Error>;

    // Provided method
    fn insert_variant<T, V>(self, tag: T, value: V) -> Result<(), Self::Error>
       where T: Encode<Self::Mode>,
             V: Encode<Self::Mode> { ... }
}

Trait governing how to encode a variant.

Required Associated Types

type Cx: Context<Error = Self::Error>

Context associated with the encoder.

type Error

Error associated with encoding.

type Mode: 'static

The mode of the encoder.

type EncodeTag<'this>: Encoder<Cx = Self::Cx, Error = Self::Error, Mode = Self::Mode> where Self: 'this

The encoder returned when advancing the map encoder to encode the key.

type EncodeData<'this>: Encoder<Cx = Self::Cx, Error = Self::Error, Mode = Self::Mode> where Self: 'this

The encoder returned when advancing the map encoder to encode the value.

Required Methods

fn cx(&self) -> Self::Cx

Access the context associated with the encoder.

fn encode_tag(&mut self) -> Result<Self::EncodeTag<'_>, Self::Error>

Return the encoder for the first element in the variant.

fn encode_data(&mut self) -> Result<Self::EncodeData<'_>, Self::Error>

Return encoder for the second element in the variant.

fn finish_variant(self) -> Result<(), Self::Error>

End the variant encoder.

Provided Methods

fn insert_variant<T, V>(self, tag: T, value: V) -> Result<(), Self::Error>

where T: Encode<Self::Mode>, V: Encode<Self::Mode>,

Insert the variant immediately.

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.

Implementors