Trait pallet_revive::AddressMapper

pub trait AddressMapper<T>: Sealed {
    // Required methods
    fn to_address(account_id: &T) -> H160;
    fn to_account_id(address: &H160) -> T;
    fn to_account_id_contract(address: &H160) -> T;
}

Map between the native chain account id T and an Ethereum H160.

This trait exists only to emulate specialization for different concrete native account ids. Not to make the mapping user configurable. Hence the trait is Sealed and only one mandatory implementor DefaultAddressMapper exists.

Please note that we assume that the native account is at least 20 bytes and only implement this type for a T where this is the case. Luckily, this is the case for all existing runtimes as of right now. Reasing is that this will allow us to reverse an address -> account_id mapping by just stripping the prefix.

Required Methods

fn to_address(account_id: &T) -> H160

Convert an account id to an ethereum address.

This mapping is not required to be reversible.

fn to_account_id(address: &H160) -> T

Convert an ethereum address to a native account id.

This mapping is required to be reversible.

fn to_account_id_contract(address: &H160) -> T

Same as Self::to_account_id but when we know the address is a contract.

This is only the case when we just generated the new address.

Object Safety

This trait is not object safe.

Implementors

impl AddressMapper<AccountId32> for DefaultAddressMapper