Trait AbiEncodeWith

pub trait AbiEncodeWith<Abi> {
    // Required methods
    fn encode_with(&self) -> Vec<u8> ;
    fn encode_to_slice(&self, buffer: &mut [u8]) -> usize;
    fn encode_to_vec(&self, buffer: &mut Vec<u8>);
    fn encode_topic<H>(&self, hasher: H) -> [u8; 32]
       where H: Fn(&[u8], &mut [u8; 32]);
}

Trait for ABI-specific encoding with support for both slice and vector buffers.

Required Methods

fn encode_with(&self) -> Vec<u8>

Encodes the data into a new vector.

fn encode_to_slice(&self, buffer: &mut [u8]) -> usize

Encodes the data into a fixed-size buffer, returning the number of bytes written.

fn encode_to_vec(&self, buffer: &mut Vec<u8>)

Encodes the data into a dynamically resizing vector.

fn encode_topic<H>(&self, hasher: H) -> [u8; 32]

where H: Fn(&[u8], &mut [u8; 32]),

Encodes the value as a topic (i.e. an indexed event parameter).

Note

The provided hashing function depends on the ABI i.e.

• BLAKE2b for ink! ABI
• Keccak-256 for Solidity ABI

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

impl<T> AbiEncodeWith<Sol> for T

where T: for<'a> SolEncode<'a>,

impl<T: Encode> AbiEncodeWith<Ink> for T