Enum frame_metadata::DecodeDifferent

pub enum DecodeDifferent<B, O> where
    B: 'static,
    O: 'static,  {
    Encode(B),
    Decoded(O),
}

A type that decodes to a different type than it encodes. The user needs to make sure that both types use the same encoding.

For example a &'static [ &'static str ] can be decoded to a Vec<String>.

Variants

Encode(B)

Decoded(O)

Trait Implementations

impl<B: Clone, O: Clone> Clone for DecodeDifferent<B, O> where
    B: 'static,
    O: 'static, 

fn clone(&self) -> DecodeDifferent<B, O>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<B, O> Debug for DecodeDifferent<B, O> where
    B: Debug + Eq + 'static,
    O: Debug + Eq + 'static, 

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

Formats the value using the given formatter.

impl<B, O> Decode for DecodeDifferent<B, O> where
    B: 'static,
    O: Decode + 'static, 

fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.

pub fn skip<I>(input: &mut I) -> Result<(), Error> where
    I: Input, 

Attempt to skip the encoded value from input.

pub fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<B, O> Encode for DecodeDifferent<B, O> where
    B: Encode + 'static,
    O: Encode + 'static, 

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)

Convert self to a slice and append it to the destination.

pub fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

pub fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

pub fn using_encoded<R, F>(&self, f: F) -> R where
    F: FnOnce(&[u8]) -> R, 

Convert self to a slice and then invoke the given closure with it.

pub fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<B, O> PartialEq<DecodeDifferent<B, O>> for DecodeDifferent<B, O> where
    B: Encode + Eq + PartialEq + 'static,
    O: Encode + Eq + PartialEq + 'static, 

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<B, O> Serialize for DecodeDifferent<B, O> where
    B: Serialize + 'static,
    O: Serialize + 'static, 

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl<B, O> EncodeLike<DecodeDifferent<B, O>> for DecodeDifferent<B, O> where
    B: Encode + 'static,
    O: Encode + 'static, 

impl<B, O> Eq for DecodeDifferent<B, O> where
    B: Encode + Eq + PartialEq + 'static,
    O: Encode + Eq + PartialEq + 'static,