Struct frame_support::traits::tokens::fungible::ItemOf

pub struct ItemOf<F: Inspect<AccountId>, A: Get<<F as Inspect<AccountId>>::AssetId>, AccountId>(_);

Convert a fungibles trait implementation into a fungible trait implementation by identifying a single item.

Trait Implementations

impl<F: Inspect<AccountId>, A: Get<<F as Inspect<AccountId>>::AssetId>, AccountId> Inspect<AccountId> for ItemOf<F, A, AccountId>

type Balance = <F as Inspect<AccountId>>::Balance

Scalar type for representing balance of an account.

fn total_issuance() -> Self::Balance

The total amount of issuance in the system.

fn minimum_balance() -> Self::Balance

The minimum balance any single account may have.

fn balance(who: &AccountId) -> Self::Balance

Get the balance of who.

fn reducible_balance(who: &AccountId, keep_alive: bool) -> Self::Balance

Get the maximum amount that who can withdraw/transfer successfully.

fn can_deposit(who: &AccountId, amount: Self::Balance) -> DepositConsequence

Returns true if the balance of who may be increased by amount.

fn can_withdraw(
    who: &AccountId,
    amount: Self::Balance
) -> WithdrawConsequence<Self::Balance>

Returns Failed if the balance of who may not be decreased by amount, otherwise the consequence.

impl<F: InspectHold<AccountId>, A: Get<<F as Inspect<AccountId>>::AssetId>, AccountId> InspectHold<AccountId> for ItemOf<F, A, AccountId>

fn balance_on_hold(who: &AccountId) -> Self::Balance

Amount of funds held in reserve by who.

fn can_hold(who: &AccountId, amount: Self::Balance) -> bool

Check to see if some amount of funds of who may be placed on hold.

impl<F: Mutate<AccountId>, A: Get<<F as Inspect<AccountId>>::AssetId>, AccountId> Mutate<AccountId> for ItemOf<F, A, AccountId>

fn mint_into(who: &AccountId, amount: Self::Balance) -> DispatchResult

Increase the balance of who by exactly amount, minting new tokens. If that isn’t possible then an Err is returned and nothing is changed.

fn burn_from(
    who: &AccountId,
    amount: Self::Balance
) -> Result<Self::Balance, DispatchError>

Decrease the balance of who by at least amount, possibly slightly more in the case of minimum_balance requirements, burning the tokens. If that isn’t possible then an Err is returned and nothing is changed. If successful, the amount of tokens reduced is returned.

fn slash(
    who: &AccountId,
    amount: Self::Balance
) -> Result<Self::Balance, DispatchError>

Attempt to reduce the balance of who by as much as possible up to amount, and possibly slightly more due to minimum_balance requirements. If no decrease is possible then an Err is returned and nothing is changed. If successful, the amount of tokens reduced is returned.

fn teleport(
    source: &AccountId,
    dest: &AccountId,
    amount: Self::Balance
) -> Result<Self::Balance, DispatchError>

Transfer funds from one account into another. The default implementation uses mint_into and burn_from and may generate unwanted events.

impl<F: MutateHold<AccountId>, A: Get<<F as Inspect<AccountId>>::AssetId>, AccountId> MutateHold<AccountId> for ItemOf<F, A, AccountId>

fn hold(who: &AccountId, amount: Self::Balance) -> DispatchResult

Hold some funds in an account.

fn release(
    who: &AccountId,
    amount: Self::Balance,
    best_effort: bool
) -> Result<Self::Balance, DispatchError>

Release up to amount held funds in an account.

fn transfer_held(
    source: &AccountId,
    dest: &AccountId,
    amount: Self::Balance,
    best_effort: bool,
    on_hold: bool
) -> Result<Self::Balance, DispatchError>

Transfer held funds into a destination account.

impl<F: Transfer<AccountId>, A: Get<<F as Inspect<AccountId>>::AssetId>, AccountId> Transfer<AccountId> for ItemOf<F, A, AccountId>

fn transfer(
    source: &AccountId,
    dest: &AccountId,
    amount: Self::Balance,
    keep_alive: bool
) -> Result<Self::Balance, DispatchError>

Transfer funds from one account into another.

impl<F: Unbalanced<AccountId>, A: Get<<F as Inspect<AccountId>>::AssetId>, AccountId> Unbalanced<AccountId> for ItemOf<F, A, AccountId>

fn set_balance(who: &AccountId, amount: Self::Balance) -> DispatchResult

Set the balance of who to amount. If this cannot be done for some reason (e.g. because the account cannot be created or an overflow) then an Err is returned.

fn set_total_issuance(amount: Self::Balance)

Set the total issuance to amount.

fn decrease_balance(
    who: &AccountId,
    amount: Self::Balance
) -> Result<Self::Balance, DispatchError>

Reduce the balance of who by amount. If it cannot be reduced by that amount for some reason, return Err and don’t reduce it at all. If Ok, return the imbalance.

fn decrease_balance_at_most(
    who: &AccountId,
    amount: Self::Balance
) -> Self::Balance

Reduce the balance of who by the most that is possible, up to amount.

fn increase_balance(
    who: &AccountId,
    amount: Self::Balance
) -> Result<Self::Balance, DispatchError>

Increase the balance of who by amount. If it cannot be increased by that amount for some reason, return Err and don’t increase it at all. If Ok, return the imbalance.

fn increase_balance_at_most(
    who: &AccountId,
    amount: Self::Balance
) -> Self::Balance

Increase the balance of who by the most that is possible, up to amount.