fp_evm

Trait AccountProvider

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pub trait AccountProvider {
    type AccountId;
    type Nonce: AtLeast32Bit;

    // Required methods
    fn create_account(who: &Self::AccountId);
    fn remove_account(who: &Self::AccountId);
    fn account_nonce(who: &Self::AccountId) -> Self::Nonce;
    fn inc_account_nonce(who: &Self::AccountId);
}
Expand description

The account provider interface abstraction layer.

Expose account related logic that pallet_evm required to control accounts existence in the network and their transactions uniqueness. By default, the pallet operates native system accounts records that frame_system provides.

The interface allow any custom account provider logic to be used instead of just using frame_system account provider. The accounts records should store nonce value for each account at least.

Required Associated Types§

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type AccountId

The account identifier type.

Represent the account itself in accounts records.

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type Nonce: AtLeast32Bit

Account nonce type.

The number that helps to ensure that each transaction in the network is unique for particular account.

Required Methods§

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fn create_account(who: &Self::AccountId)

Creates a new account in accounts records.

The account associated with new created address EVM.

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fn remove_account(who: &Self::AccountId)

Removes an account from accounts records.

The account associated with removed address from EVM.

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fn account_nonce(who: &Self::AccountId) -> Self::Nonce

Return current account nonce value.

Used to represent account basic information in EVM format.

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fn inc_account_nonce(who: &Self::AccountId)

Increment a particular account’s nonce value.

Incremented with each new transaction submitted by the account.

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§