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DiscoverScratch

differential_dataflow::operators::common

Struct DiscoverScratch 

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pub struct DiscoverScratch<T, RIn> { /* private fields */ }
Expand description

Reusable per-key scratch for discover_times: held once and threaded through every key, so replays and time buffers are cleared and refilled rather than reallocated per key.

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impl<T: Timestamp + Lattice, RIn: Semigroup + Clone> DiscoverScratch<T, RIn>

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pub fn new() -> Self

Fresh scratch; hold one per retire and thread it through every key.

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impl<T: Timestamp + Lattice, RIn: Semigroup + Clone> Default for DiscoverScratch<T, RIn>

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fn default() -> Self

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

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impl<T, RIn> Freeze for DiscoverScratch<T, RIn>

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impl<T, RIn> RefUnwindSafe for DiscoverScratch<T, RIn>
where T: RefUnwindSafe, RIn: RefUnwindSafe,

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impl<T, RIn> Send for DiscoverScratch<T, RIn>
where T: Send, RIn: Send,

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impl<T, RIn> Sync for DiscoverScratch<T, RIn>
where T: Sync, RIn: Sync,

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impl<T, RIn> Unpin for DiscoverScratch<T, RIn>
where T: Unpin, RIn: Unpin,

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impl<T, RIn> UnsafeUnpin for DiscoverScratch<T, RIn>

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impl<T, RIn> UnwindSafe for DiscoverScratch<T, RIn>
where T: UnwindSafe, RIn: 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<'a, S, T> Semigroup<&'a S> for T
where T: Semigroup<S>,

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fn plus_equals(&mut self, rhs: &&'a S)

The method of std::ops::AddAssign, for types that do not implement AddAssign.
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impl<T, U> TryFrom<U> for T
where 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 T
where 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.