Struct eq_balances::balance_adapter::BalanceAdapter

pub struct BalanceAdapter<T, R, CurrencyGetter>(_);

Adapts EqCurrency to work as BasicCurrency in Substrate runtime

Trait Implementations

impl<AccountId, T, R, CurrencyGetter> Currency<AccountId> for BalanceAdapter<T, R, CurrencyGetter> where
    T: Trait,
    R: EqCurrency<AccountId, T::Balance>,
    CurrencyGetter: Get<Currency>, 

type Balance = T::Balance

The balance of an account.

type PositiveImbalance = PositiveImbalance<T::Balance>

The opaque token type for an imbalance. This is returned by unbalanced operations and must be dealt with. It may be dropped but cannot be cloned.

type NegativeImbalance = NegativeImbalance<T::Balance>

The opaque token type for an imbalance. This is returned by unbalanced operations and must be dealt with. It may be dropped but cannot be cloned.

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

The combined balance of who.

fn can_slash(who: &AccountId, value: Self::Balance) -> bool

Same result as slash(who, value) (but without the side-effects) assuming there are no balance changes in the meantime and only the reserved balance is not taken into 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. This is equivalent to the Balances module's ExistentialDeposit.

fn burn(amount: Self::Balance) -> Self::PositiveImbalance

Reduce the total issuance by amount and return the according imbalance. The imbalance will typically be used to reduce an account by the same amount with e.g. settle.

fn issue(amount: Self::Balance) -> Self::NegativeImbalance

Increase the total issuance by amount and return the according imbalance. The imbalance will typically be used to increase an account by the same amount with e.g. resolve_into_existing or resolve_creating.

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

The 'free' balance of a given account.

fn ensure_can_withdraw(
    who: &AccountId,
    _amount: Self::Balance,
    reasons: WithdrawReasons,
    new_balance: Self::Balance
) -> DispatchResult

Returns Ok iff the account is able to make a withdrawal of the given amount for the given reason. Basically, it's just a dry-run of withdraw.

fn transfer(
    source: &AccountId,
    dest: &AccountId,
    value: Self::Balance,
    existence_requirement: ExistenceRequirement
) -> DispatchResult

Transfer some liquid free balance to another staker.

fn slash(
    who: &AccountId,
    value: Self::Balance
) -> (Self::NegativeImbalance, Self::Balance)

Deducts up to value from the combined balance of who, preferring to deduct from the free balance. This function cannot fail.

fn deposit_into_existing(
    who: &AccountId,
    value: Self::Balance
) -> Result<Self::PositiveImbalance, DispatchError>

Mints value to the free balance of who.

fn deposit_creating(
    who: &AccountId,
    value: Self::Balance
) -> Self::PositiveImbalance

Adds up to value to the free balance of who. If who doesn't exist, it is created.

fn withdraw(
    who: &AccountId,
    value: Self::Balance,
    reasons: WithdrawReasons,
    liveness: ExistenceRequirement
) -> Result<Self::NegativeImbalance, DispatchError>

Removes some free balance from who account for reason if possible. If liveness is KeepAlive, then no less than ExistentialDeposit must be left remaining.

fn make_free_balance_be(
    who: &AccountId,
    balance: Self::Balance
) -> SignedImbalance<Self::Balance, Self::PositiveImbalance>

Ensure an account's free balance equals some value; this will create the account if needed.

fn pair(
    amount: Self::Balance
) -> (Self::PositiveImbalance, Self::NegativeImbalance)

Produce a pair of imbalances that cancel each other out exactly.

fn resolve_into_existing(
    who: &AccountId,
    value: Self::NegativeImbalance
) -> Result<(), Self::NegativeImbalance>

Similar to deposit_creating, only accepts a NegativeImbalance and returns nothing on success.

fn resolve_creating(who: &AccountId, value: Self::NegativeImbalance)

Similar to deposit_creating, only accepts a NegativeImbalance and returns nothing on success.

fn settle(
    who: &AccountId,
    value: Self::PositiveImbalance,
    reasons: WithdrawReasons,
    liveness: ExistenceRequirement
) -> Result<(), Self::PositiveImbalance>

Similar to withdraw, only accepts a PositiveImbalance and returns nothing on success.