Struct frame_support::traits::tokens::fungibles::Imbalance[−][src]

pub struct Imbalance<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> { /* fields omitted */ }

Expand description

An imbalance in the system, representing a divergence of recorded token supply from the sum of the balances of all accounts. This is must_use in order to ensure it gets handled (placing into an account, settling from an account or altering the supply).

Importantly, it has a special Drop impl, and cannot be created outside of this module.

Implementations

impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> Imbalance<A, B, OnDrop, OppositeOnDrop>

pub fn zero(asset: A) -> Self

pub fn drop_zero(self) -> Result<(), Self>

pub fn split(self, amount: B) -> (Self, Self)

pub fn merge(self, other: Self) -> Result<Self, (Self, Self)>

pub fn subsume(&mut self, other: Self) -> Result<(), Self>

pub fn offset(
    self, 
    other: Imbalance<A, B, OppositeOnDrop, OnDrop>
) -> Result<SameOrOther<Self, Imbalance<A, B, OppositeOnDrop, OnDrop>>, (Self, Imbalance<A, B, OppositeOnDrop, OnDrop>)>

pub fn peek(&self) -> B

pub fn asset(&self) -> A

Trait Implementations

impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> Debug for Imbalance<A, B, OnDrop, OppositeOnDrop> where
    A: Debug,
    B: Debug,
    OnDrop: Debug,
    OppositeOnDrop: Debug,

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> Drop for Imbalance<A, B, OnDrop, OppositeOnDrop>

fn drop(&mut self)

Executes the destructor for this type. Read more

impl<A: PartialEq + AssetId, B: PartialEq + Balance, OnDrop: PartialEq + HandleImbalanceDrop<A, B>, OppositeOnDrop: PartialEq + HandleImbalanceDrop<A, B>> PartialEq<Imbalance<A, B, OnDrop, OppositeOnDrop>> for Imbalance<A, B, OnDrop, OppositeOnDrop>

fn eq(&self, other: &Imbalance<A, B, OnDrop, OppositeOnDrop>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &Imbalance<A, B, OnDrop, OppositeOnDrop>) -> bool

This method tests for !=.

impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> TryDrop for Imbalance<A, B, OnDrop, OppositeOnDrop>

fn try_drop(self) -> Result<(), Self>

Drop an instance cleanly. Only works if its value represents “no-operation”.

impl<A: Eq + AssetId, B: Eq + Balance, OnDrop: Eq + HandleImbalanceDrop<A, B>, OppositeOnDrop: Eq + HandleImbalanceDrop<A, B>> Eq for Imbalance<A, B, OnDrop, OppositeOnDrop>

impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> StructuralEq for Imbalance<A, B, OnDrop, OppositeOnDrop>

impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> StructuralPartialEq for Imbalance<A, B, OnDrop, OppositeOnDrop>

Auto Trait Implementations

impl<A, B, OnDrop, OppositeOnDrop> RefUnwindSafe for Imbalance<A, B, OnDrop, OppositeOnDrop> where
    A: RefUnwindSafe,
    B: RefUnwindSafe,
    OnDrop: RefUnwindSafe,
    OppositeOnDrop: RefUnwindSafe,

impl<A, B, OnDrop, OppositeOnDrop> Send for Imbalance<A, B, OnDrop, OppositeOnDrop> where
    A: Send,
    B: Send,
    OnDrop: Send,
    OppositeOnDrop: Send,

impl<A, B, OnDrop, OppositeOnDrop> Sync for Imbalance<A, B, OnDrop, OppositeOnDrop> where
    A: Sync,
    B: Sync,
    OnDrop: Sync,
    OppositeOnDrop: Sync,

impl<A, B, OnDrop, OppositeOnDrop> Unpin for Imbalance<A, B, OnDrop, OppositeOnDrop> where
    A: Unpin,
    B: Unpin,
    OnDrop: Unpin,
    OppositeOnDrop: Unpin,

impl<A, B, OnDrop, OppositeOnDrop> UnwindSafe for Imbalance<A, B, OnDrop, OppositeOnDrop> where
    A: UnwindSafe,
    B: UnwindSafe,
    OnDrop: UnwindSafe,
    OppositeOnDrop: UnwindSafe,

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized,

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CheckedConversion for T

fn checked_from<T>(t: T) -> Option<Self> where
    Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

fn checked_into<T>(self) -> Option<T> where
    Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

impl<T> Downcast for T where
    T: Any,

pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> DowncastSync for T where
    T: Any + Send + Sync,

pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
    U: From<T>,

pub fn into(self) -> U

Performs the conversion.

impl<T, Outer> IsWrappedBy<Outer> for T where
    T: From<Outer>,
    Outer: AsRef<T> + AsMut<T> + From<T>,

pub fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

pub fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> SaturatedConversion for T

fn saturated_from<T>(t: T) -> Self where
    Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more

fn saturated_into<T>(self) -> T where
    Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>,

pub fn unchecked_into(self) -> T

The counterpart to unchecked_from.

impl<T, S> UniqueSaturatedInto<T> for S where
    T: Bounded,
    S: TryInto<T>,

pub fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> MaybeDebug for T where
    T: Debug,

impl<T> MaybeDebug for T where
    T: Debug,

impl<T> MaybeRefUnwindSafe for T where
    T: RefUnwindSafe,