Trait polkadot_sdk_frame::traits::tokens::fungibles::Refund

pub trait Refund<AccountId> {
    type AssetId: AssetId;
    type Balance: Balance;

    // Required methods
    fn deposit_held(
        id: Self::AssetId,
        who: AccountId,
    ) -> Option<(AccountId, Self::Balance)>;
    fn refund(id: Self::AssetId, who: AccountId) -> Result<(), DispatchError>;
}

Trait for refunding the existence deposit of a target asset account.

The existence deposit might by necessary and present in cases where the asset held by the account is insufficient for the required storage, or when the system cannot provide a consumer reference for any reason.

Required Associated Types

type AssetId: AssetId

Means of identifying one asset class from another.

type Balance: Balance

Scalar type for representing deposit balance of an account.

Required Methods

fn deposit_held( id: Self::AssetId, who: AccountId, ) -> Option<(AccountId, Self::Balance)>

Returns the amount of account deposit and depositor address, if any.

fn refund(id: Self::AssetId, who: AccountId) -> Result<(), DispatchError>

Return the deposit (if any) of a target asset account.

Object Safety

This trait is not object safe.

Implementors

impl<Left, Right, Criterion, AssetKind, AccountId> Refund<AccountId> for polkadot_sdk_frame::traits::tokens::fungible::UnionOf<Left, Right, Criterion, AssetKind, AccountId>

where Left: Inspect<AccountId>, Right: Inspect<AccountId> + Refund<AccountId>, Criterion: Convert<AssetKind, Either<(), <Right as Refund<AccountId>>::AssetId>>, AssetKind: AssetId,

type AssetId = AssetKind

type Balance = <Right as Refund<AccountId>>::Balance

impl<Left, Right, Criterion, AssetKind, AccountId> Refund<AccountId> for polkadot_sdk_frame::traits::tokens::fungibles::UnionOf<Left, Right, Criterion, AssetKind, AccountId>

where Left: Inspect<AccountId> + Refund<AccountId>, Right: Inspect<AccountId> + Refund<AccountId, Balance = <Left as Refund<AccountId>>::Balance>, Criterion: Convert<AssetKind, Either<<Left as Refund<AccountId>>::AssetId, <Right as Refund<AccountId>>::AssetId>>, AssetKind: AssetId,

type AssetId = AssetKind

type Balance = <Left as Refund<AccountId>>::Balance