Struct pallet_babe::CurrentBlockRandomness

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pub struct CurrentBlockRandomness<T>(/* private fields */);
👎Deprecated: Should not be relied upon for correctness, will not provide fresh randomness for the current block. Please use ParentBlockRandomness instead.
Expand description

Randomness produced semi-freshly with each block, but inherits limitations of RandomnessFromTwoEpochsAgo from which it derives.

See ParentBlockRandomness.

Trait Implementations§

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impl<T: Config> Randomness<Option<<T as Config>::Hash>, <<<T as Config>::Block as HeaderProvider>::HeaderT as Header>::Number> for CurrentBlockRandomness<T>

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fn random(subject: &[u8]) -> (Option<T::Hash>, BlockNumberFor<T>)

Get the most recently determined random seed, along with the time in the past since when it was determinable by chain observers. Read more
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fn random_seed() -> (Output, BlockNumber)

Get the basic random seed. Read more

Auto Trait Implementations§

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

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impl<T> Send for CurrentBlockRandomness<T>
where T: Send,

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impl<T> Sync for CurrentBlockRandomness<T>
where T: Sync,

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impl<T> Unpin for CurrentBlockRandomness<T>
where T: Unpin,

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impl<T> UnwindSafe for CurrentBlockRandomness<T>
where T: UnwindSafe,

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

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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

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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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where U: From<T>,

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Calls U::from(self).

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

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Cast mutable reference.
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fn into_mut(&mut self) -> &mut T

Cast mutable reference.
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where Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

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Get a mutable reference to the inner from the outer.

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impl<T> Same for T

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type Output = T

Should always be Self
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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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where Self: UniqueSaturatedInto<T>,

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type Error = Infallible

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Performs the conversion.
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where U: TryFrom<T>,

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

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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where T: Bounded, S: TryInto<T>,

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where S: Into<Dispatch>,

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