Struct sp_npos_elections::Assignment[−][src]

pub struct Assignment<AccountId, P: PerThing> {
    pub who: AccountId,
    pub distribution: Vec<(AccountId, P)>,
}

Expand description

A voter’s stake assignment among a set of targets, represented as ratios.

Fields

who: AccountId

Voter’s identifier.

distribution: Vec<(AccountId, P)>

The distribution of the voter’s stake.

Implementations

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impl<AccountId: IdentifierT, P: PerThing128> Assignment<AccountId, P>

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pub fn into_staked(self, stake: ExtendedBalance) -> StakedAssignment<AccountId>

Convert from a ratio assignment into one with absolute values aka. StakedAssignment.

It needs stake which is the total budget of the voter.

Note that this might create un-normalized assignments, due to accuracy loss of P. Call site might compensate by calling try_normalize() on the returned StakedAssignment as a post-precessing.

If an edge ratio is Bounded::min_value(), it is dropped. This edge can never mean anything useful.

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pub fn try_normalize(&mut self) -> Result<(), &'static str>

Try and normalize this assignment.

If Ok(()) is returned, then the assignment MUST have been successfully normalized to 100%.

Errors

This will return only if the internal normalize fails. This can happen if sum of self.distribution.map(|p| p.deconstruct()) fails to fit inside UpperOf<P>. A user of this crate may statically assert that this can never happen and safely expect this to return Ok.

Trait Implementations

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impl<AccountId: Clone, P: Clone + PerThing> Clone for Assignment<AccountId, P>

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fn clone(&self) -> Assignment<AccountId, P>

Returns a copy of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<AccountId, P: PerThing> Debug for Assignment<AccountId, P> where
    AccountId: Debug,
    P: 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<AccountId, P: PerThing> Decode for Assignment<AccountId, P> where
    AccountId: Decode,
    AccountId: Decode,
    Vec<(AccountId, P)>: Decode,
    Vec<(AccountId, P)>: Decode,

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fn decode<__CodecInputEdqy: Input>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn skip<I>(input: &mut I) -> Result<(), Error> where
    I: Input,

Attempt to skip the encoded value from input. Read more

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type. Read more

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impl<AccountId: Default, P: Default + PerThing> Default for Assignment<AccountId, P>

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fn default() -> Assignment<AccountId, P>

Returns the “default value” for a type. Read more

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impl<AccountId, P: PerThing> Encode for Assignment<AccountId, P> where
    AccountId: Encode,
    AccountId: Encode,
    Vec<(AccountId, P)>: Encode,
    Vec<(AccountId, P)>: Encode,

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fn encode_to<__CodecOutputEdqy: Output + ?Sized>(
    &self, 
    __codec_dest_edqy: &mut __CodecOutputEdqy
)

Convert self to a slice and append it to the destination.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more

fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R where
    F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size. Read more

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impl<AccountId: PartialEq, P: PartialEq + PerThing> PartialEq<Assignment<AccountId, P>> for Assignment<AccountId, P>

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fn eq(&self, other: &Assignment<AccountId, P>) -> 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: &Assignment<AccountId, P>) -> bool

This method tests for !=.

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impl<AccountId, P: PerThing> EncodeLike<Assignment<AccountId, P>> for Assignment<AccountId, P> where
    AccountId: Encode,
    AccountId: Encode,
    Vec<(AccountId, P)>: Encode,
    Vec<(AccountId, P)>: Encode,

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impl<AccountId: Eq, P: Eq + PerThing> Eq for Assignment<AccountId, P>

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impl<AccountId, P: PerThing> StructuralEq for Assignment<AccountId, P>

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impl<AccountId, P: PerThing> StructuralPartialEq for Assignment<AccountId, P>

Auto Trait Implementations

impl<AccountId, P> RefUnwindSafe for Assignment<AccountId, P> where
    AccountId: RefUnwindSafe,
    P: RefUnwindSafe,

impl<AccountId, P> Send for Assignment<AccountId, P> where
    AccountId: Send,
    P: Send,

impl<AccountId, P> Sync for Assignment<AccountId, P> where
    AccountId: Sync,
    P: Sync,

impl<AccountId, P> Unpin for Assignment<AccountId, P> where
    AccountId: Unpin,
    P: Unpin,

impl<AccountId, P> UnwindSafe for Assignment<AccountId, P> where
    AccountId: UnwindSafe,
    P: 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,

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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,

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

Mutably borrows from an owned value. Read more

impl<T> DecodeAll for T where
    T: Decode,

pub fn decode_all(input: &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more

impl<T> DecodeLimit for T where
    T: Decode,

pub fn decode_all_with_depth_limit(limit: u32, input: &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more

pub fn decode_with_depth_limit(limit: u32, input: &[u8]) -> Result<T, Error>

Decode Self with the given maximum recursion depth. 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

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impl<T> DynClone for T where
    T: Clone,

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pub fn __clone_box(&self, Private) -> *mut ()

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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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 T where
    U: From<T>,

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pub fn into(self) -> U

Performs the conversion.

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

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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.

impl<T> KeyedVec for T where
    T: Codec,

pub fn to_keyed_vec(&self, prepend_key: &[u8]) -> Vec<u8, Global>

Return an encoding of Self prepended by given slice.

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> ToOwned for T where
    T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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pub 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 T where
    U: TryFrom<T>,

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

The type returned in the event of a conversion error.

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

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

pub fn vzip(self) -> V

impl<S> Codec for S where
    S: Decode + Encode,

impl<'_, '_, T> EncodeLike<&'_ &'_ T> for T where
    T: Encode,

impl<'_, T> EncodeLike<&'_ T> for T where
    T: Encode,

impl<'_, T> EncodeLike<&'_ mut T> for T where
    T: Encode,

impl<T> EncodeLike<Arc<T>> for T where
    T: Encode,

impl<T> EncodeLike<Box<T, Global>> for T where
    T: Encode,

impl<'a, T> EncodeLike<Cow<'a, T>> for T where
    T: ToOwned + Encode,

impl<T> EncodeLike<Rc<T>> for T where
    T: Encode,

impl<S> FullCodec for S where
    S: Decode + FullEncode,

impl<S> FullEncode for S where
    S: Encode + EncodeLike<S>,

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

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