Trait OnChargeCapacityTransaction

pub trait OnChargeCapacityTransaction<T: Config> {
    type Balance: Balance;

    // Required methods
    fn withdraw_fee(
        key: &T::AccountId,
        fee: Self::Balance,
    ) -> Result<Self::Balance, TransactionValidityError>;
    fn can_withdraw_fee(
        key: &T::AccountId,
        fee: Self::Balance,
    ) -> Result<(), TransactionValidityError>;
}

A trait used for the withdrawal of Capacity.

Required Associated Types

type Balance: Balance

Scalar type for representing balance of an account.

Required Methods

fn withdraw_fee( key: &T::AccountId, fee: Self::Balance, ) -> Result<Self::Balance, TransactionValidityError>

Handles withdrawal of Capacity from an Account.

fn can_withdraw_fee( key: &T::AccountId, fee: Self::Balance, ) -> Result<(), TransactionValidityError>

Checks if there is enough Capacity balance to cover the fee.

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, Curr, Msa> OnChargeCapacityTransaction<T> for CapacityAdapter<Curr, Msa>

where T: Config, Curr: InspectFungible<<T as Config>::AccountId>, Msa: MsaValidator<AccountId = <T as Config>::AccountId>, <<T as Config>::OnChargeTransaction as OnChargeTransaction<T>>::Balance: Send + Sync + FixedPointOperand + IsType<<<T as Config>::Capacity as Nontransferable>::Balance> + MaxEncodedLen,

type Balance = <<T as Config>::OnChargeTransaction as OnChargeTransaction<T>>::Balance