Trait frame_support::traits::tokens::fungible::Inspect

pub trait Inspect<AccountId> {
    type Balance: Balance;
    fn total_issuance() -> Self::Balance;
    fn minimum_balance() -> Self::Balance;
    fn balance(who: &AccountId) -> Self::Balance;
    fn reducible_balance(who: &AccountId, keep_alive: bool) -> Self::Balance;
    fn can_deposit(who: &AccountId, amount: Self::Balance) -> DepositConsequence;
    fn can_withdraw(
        who: &AccountId, 
        amount: Self::Balance
    ) -> WithdrawConsequence<Self::Balance>;
}

Trait for providing balance-inspection access to a fungible asset.

Associated Types

type Balance: Balance

Scalar type for representing balance of an account.

Required methods

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.

Implementors

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