Trait VariantDecoder 

pub trait VariantDecoder<'de> {
    type Cx: Context<Error = Self::Error, Allocator = Self::Allocator>;
    type Error;
    type Allocator: Allocator;
    type Mode: 'static;
    type DecodeTag<'this>: Decoder<'de, Cx = Self::Cx, Error = Self::Error, Allocator = Self::Allocator, Mode = Self::Mode>
       where Self: 'this;
    type DecodeValue<'this>: Decoder<'de, Cx = Self::Cx, Error = Self::Error, Allocator = Self::Allocator, Mode = Self::Mode>
       where Self: 'this;

    // Required methods
    fn cx(&self) -> Self::Cx;
    fn decode_tag(&mut self) -> Result<Self::DecodeTag<'_>, Self::Error>;
    fn decode_value(&mut self) -> Result<Self::DecodeValue<'_>, Self::Error>;
}

Trait governing how to decode a variant.

Required Associated Types

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

Context associated with the decoder.

type Error

Error associated with decoding.

type Allocator: Allocator

The allocator associated with the decoder.

type Mode: 'static

The mode of the decoder.

type DecodeTag<'this>: Decoder<'de, Cx = Self::Cx, Error = Self::Error, Allocator = Self::Allocator, Mode = Self::Mode> where Self: 'this

The decoder to use for the variant tag.

type DecodeValue<'this>: Decoder<'de, Cx = Self::Cx, Error = Self::Error, Allocator = Self::Allocator, Mode = Self::Mode> where Self: 'this

The decoder to use for the variant value.

Required Methods

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

Access the context associated with the decoder.

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

Return the decoder for the first value in the pair.

If this is a map the first value would be the key of the map, if this is a struct the first value would be the field of the struct.

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

Decode the second value in the pair..

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors