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

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

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pub fn zero(asset: A) -> Self

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

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

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

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

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

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pub fn peek(&self) -> B

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pub fn asset(&self) -> A

Trait Implementations§

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

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

Formats the value using the given formatter. Read more
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impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> Drop for Imbalance<A, B, OnDrop, OppositeOnDrop>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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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>

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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 ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<A: AssetId, B: Balance, OnDrop: HandleImbalanceDrop<A, B>, OppositeOnDrop: HandleImbalanceDrop<A, B>> TryDrop for Imbalance<A, B, OnDrop, OppositeOnDrop>

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

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

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

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

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

Auto Trait Implementations§

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

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

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

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

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

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<T> CheckedConversion for T

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

Consume self to return Some equivalent value of Option<T>. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

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

Get a reference to the inner from the outer.

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

Get a mutable reference to the inner from the outer.

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impl<T> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> SaturatedConversion for T

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

Convert from a value of T into an equivalent instance of Self. Read more
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fn saturated_into<T>(self) -> Twhere Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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impl<T, S> UniqueSaturatedInto<T> for Swhere T: Bounded, S: TryInto<T>,

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fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> JsonSchemaMaybe for T

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