Struct pallet_balances::NegativeImbalance

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pub struct NegativeImbalance<T: Config<I>, I: 'static>(_);

Expand description

Opaque, move-only struct with private fields that serves as a token denoting that funds have been destroyed without any equal and opposite accounting.

Implementations

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impl<T: Config, I: 'static> NegativeImbalance<T, I>

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pub fn new(amount: T::Balance) -> Self

Create a new negative imbalance from a balance.

Trait Implementations

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impl<T: Config, I: 'static> Debug for NegativeImbalance<T, I> where
T: Debug,
I: Debug,

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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<T: Config, I: 'static> Drop for NegativeImbalance<T, I>

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fn drop(&mut self)

Basic drop handler will just square up the total issuance.

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impl<T: Config, I: 'static> Imbalance<<T as Config>::Balance> for NegativeImbalance<T, I>

type Opposite = PositiveImbalance<T, I>

The oppositely imbalanced type. They come in pairs.

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fn zero() -> Self

The zero imbalance. Can be destroyed with drop_zero.

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

Drop an instance cleanly. Only works if its self.value() is zero.

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fn split(self, amount: T::Balance) -> (Self, Self)

Consume self and return two independent instances; the first is guaranteed to be at most amount and the second will be the remainder. Read more

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fn merge(self, other: Self) -> Self

Consume self and an other to return a new instance that combines both. Read more

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fn subsume(&mut self, other: Self)

Consume an other to mutate self into a new instance that combines both. Read more

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fn offset(self, other: Self::Opposite) -> Result<Self, Self::Opposite>

Consume self and along with an opposite counterpart to return a combined result. Read more

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fn peek(&self) -> T::Balance

The raw value of self.

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fn ration(self, first: u32, second: u32) -> (Self, Self) where
Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

Consume self and return two independent instances; the amounts returned will be in approximately the same ratio as first:second. Read more

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fn split_merge(self, amount: Balance, others: (Self, Self)) -> (Self, Self)

Consume self and add its two components, defined by the first component’s balance, element-wise to two pre-existing Imbalances. Read more

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fn ration_merge(
 self,
 first: u32,
 second: u32,
 others: (Self, Self)
) -> (Self, Self) where
 Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

Consume self and add its two components, defined by the ratio first:second, element-wise to two pre-existing Imbalances. Read more

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fn split_merge_into(self, amount: Balance, others: &mut (Self, Self))

Consume self and add its two components, defined by the first component’s balance, element-wise into two pre-existing Imbalance refs. Read more

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fn ration_merge_into(self, first: u32, second: u32, others: &mut (Self, Self)) where
Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

Consume self and add its two components, defined by the ratio first:second, element-wise to two pre-existing Imbalances. Read more

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fn merge_into(self, other: &mut Self)

Consume self to mutate other so that it combines both. Just like subsume, only with reversed arguments. Read more

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fn maybe_merge(self, other: Option<Self>) -> Self

Consume self and maybe an other to return a new instance that combines both. Read more

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fn maybe_subsume(&mut self, other: Option<Self>)

Maybe consume an other to mutate self into a new instance that combines both. Read more

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impl<T: PartialEq + Config, I: PartialEq + 'static> PartialEq<NegativeImbalance<T, I>> for NegativeImbalance<T, I> where
T::Balance: PartialEq,

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fn eq(&self, other: &NegativeImbalance<T, I>) -> bool

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

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fn ne(&self, other: &NegativeImbalance<T, I>) -> bool

This method tests for !=.

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impl<T: Config, I: 'static> TryDrop for NegativeImbalance<T, I>

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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<T: Eq + Config, I: Eq + 'static> Eq for NegativeImbalance<T, I> where
T::Balance: Eq,

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impl<T: Config, I: 'static> StructuralEq for NegativeImbalance<T, I>

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impl<T: Config, I: 'static> StructuralPartialEq for NegativeImbalance<T, I>

Auto Trait Implementations

impl<T, I> RefUnwindSafe for NegativeImbalance<T, I> where
<T as Config>::Balance: RefUnwindSafe,

impl<T, I> Send for NegativeImbalance<T, I>

impl<T, I> Sync for NegativeImbalance<T, I>

impl<T, I> Unpin for NegativeImbalance<T, I> where
<T as Config>::Balance: Unpin,

impl<T, I> UnwindSafe for NegativeImbalance<T, I> where
<T as Config>::Balance: UnwindSafe,

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

pub 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<T> From<T> for T

const: unstable · source

pub 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 for T where
U: From<T>,

const: unstable · source

pub 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> IsType<T> for T

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pub fn from_ref(t: &T) -> &T

Cast reference.

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pub fn into_ref(&self) -> &T

Cast reference.

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pub fn from_mut(t: &mut T) -> &mut T

Cast mutable reference.

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

Cast mutable reference.

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

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

Get a reference to the inner from the outer.

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

Get a mutable reference to the inner from the outer.

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impl<T> Same<T> for T

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) -> Self where
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) -> T where
Self: UniqueSaturatedInto<T>,

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

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pub fn unchecked_into(self) -> T

The counterpart to unchecked_from.

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

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pub fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

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Struct pallet_balances::NegativeImbalance

Implementations

impl<T: Config<I>, I: 'static> NegativeImbalance<T, I>

pub fn new(amount: T::Balance) -> Self

Trait Implementations

impl<T: Config<I>, I: 'static> Debug for NegativeImbalance<T, I> where T: Debug, I: Debug,

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

impl<T: Config<I>, I: 'static> Drop for NegativeImbalance<T, I>

fn drop(&mut self)

impl<T: Config<I>, I: 'static> Imbalance<<T as Config<I>>::Balance> for NegativeImbalance<T, I>

type Opposite = PositiveImbalance<T, I>

fn zero() -> Self

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

fn split(self, amount: T::Balance) -> (Self, Self)

fn merge(self, other: Self) -> Self

fn subsume(&mut self, other: Self)

fn offset(self, other: Self::Opposite) -> Result<Self, Self::Opposite>

fn peek(&self) -> T::Balance

fn ration(self, first: u32, second: u32) -> (Self, Self) where Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

fn split_merge(self, amount: Balance, others: (Self, Self)) -> (Self, Self)

fn ration_merge( self, first: u32, second: u32, others: (Self, Self)) -> (Self, Self) where Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

fn split_merge_into(self, amount: Balance, others: &mut (Self, Self))

fn ration_merge_into(self, first: u32, second: u32, others: &mut (Self, Self)) where Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

fn merge_into(self, other: &mut Self)

fn maybe_merge(self, other: Option<Self>) -> Self

fn maybe_subsume(&mut self, other: Option<Self>)

impl<T: PartialEq + Config<I>, I: PartialEq + 'static> PartialEq<NegativeImbalance<T, I>> for NegativeImbalance<T, I> where T::Balance: PartialEq,

fn eq(&self, other: &NegativeImbalance<T, I>) -> bool

fn ne(&self, other: &NegativeImbalance<T, I>) -> bool

impl<T: Config<I>, I: 'static> TryDrop for NegativeImbalance<T, I>

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

impl<T: Eq + Config<I>, I: Eq + 'static> Eq for NegativeImbalance<T, I> where T::Balance: Eq,

impl<T: Config<I>, I: 'static> StructuralEq for NegativeImbalance<T, I>

impl<T: Config<I>, I: 'static> StructuralPartialEq for NegativeImbalance<T, I>

Auto Trait Implementations

impl<T, I> RefUnwindSafe for NegativeImbalance<T, I> where <T as Config<I>>::Balance: RefUnwindSafe,

impl<T, I> Send for NegativeImbalance<T, I>

impl<T, I> Sync for NegativeImbalance<T, I>

impl<T, I> Unpin for NegativeImbalance<T, I> where <T as Config<I>>::Balance: Unpin,

impl<T, I> UnwindSafe for NegativeImbalance<T, I> where <T as Config<I>>::Balance: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> CheckedConversion for T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> Instrument for T

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

fn in_current_span(self) -> Instrumented<Self>

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

pub fn into(self) -> U

impl<T> IsType<T> for T

pub fn from_ref(t: &T) -> &T

pub fn into_ref(&self) -> &T

pub fn from_mut(t: &mut T) -> &mut T

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

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

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

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

impl<T> Same<T> for T

type Output = T

impl<T> SaturatedConversion for T

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

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

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

type Error = Infallible

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

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

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

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

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

pub fn unchecked_into(self) -> T

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

pub fn unique_saturated_into(self) -> T

impl<T: Config<I>, I: 'static> Debug for NegativeImbalance<T, I> where
T: Debug,
I: Debug,

fn ration(self, first: u32, second: u32) -> (Self, Self) where
Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

fn ration_merge(
self,
first: u32,
second: u32,
others: (Self, Self)
) -> (Self, Self) where
Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

fn ration_merge_into(self, first: u32, second: u32, others: &mut (Self, Self)) where
Balance: From<u32> + Saturating + Div<Balance, Output = Balance>,

impl<T: PartialEq + Config<I>, I: PartialEq + 'static> PartialEq<NegativeImbalance<T, I>> for NegativeImbalance<T, I> where
T::Balance: PartialEq,

impl<T: Eq + Config<I>, I: Eq + 'static> Eq for NegativeImbalance<T, I> where
T::Balance: Eq,

impl<T, I> RefUnwindSafe for NegativeImbalance<T, I> where
<T as Config<I>>::Balance: RefUnwindSafe,

impl<T, I> Unpin for NegativeImbalance<T, I> where
<T as Config<I>>::Balance: Unpin,

impl<T, I> UnwindSafe for NegativeImbalance<T, I> where
<T as Config<I>>::Balance: UnwindSafe,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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