Trait drt_sc_codec::TopEncodeOutput

pub trait TopEncodeOutput: Sized {
    type NestedBuffer: NestedEncodeOutput;

    // Required methods
    fn set_slice_u8(self, bytes: &[u8]);
    fn start_nested_encode(&self) -> Self::NestedBuffer;
    fn finalize_nested_encode(self, nb: Self::NestedBuffer);

    // Provided methods
    fn set_u64(self, value: u64) { ... }
    fn set_i64(self, value: i64) { ... }
    fn supports_specialized_type<T: TryStaticCast>() -> bool { ... }
    fn set_specialized<T, H>(
        self,
        _value: &T,
        h: H,
    ) -> Result<(), H::HandledErr>
       where T: TryStaticCast,
             H: EncodeErrorHandler { ... }
}

Specifies objects that can receive the result of a TopEncode computation. in principle from NestedEncode performed on nested items.

All methods consume the object, so they can only be called once.

The trait is used in 3 scenarios:

• SC results
• #[storage_set(...)]
• Serialize async call.

Required Associated Types

type NestedBuffer: NestedEncodeOutput

Type of NestedEncodeOutput that can be spawned to gather serializations of children.

Required Methods

fn set_slice_u8(self, bytes: &[u8])

fn start_nested_encode(&self) -> Self::NestedBuffer

fn finalize_nested_encode(self, nb: Self::NestedBuffer)

Provided Methods

fn set_u64(self, value: u64)

fn set_i64(self, value: i64)

fn supports_specialized_type<T: TryStaticCast>() -> bool

fn set_specialized<T, H>(self, _value: &T, h: H) -> Result<(), H::HandledErr>

where T: TryStaticCast, H: EncodeErrorHandler,

Allows special handling of special types. Also requires an alternative serialization, in case the special handling is not covered. The alternative serialization, else_serialization is only called when necessary and is normally compiled out via monomorphization.

Object Safety

This trait is not object safe.

Implementors

impl TopEncodeOutput for &mut Vec<u8>

type NestedBuffer = Vec<u8>