Struct TraceEnter

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pub struct TraceEnter<Tr: TraceReader, TInner, F, G> { /* private fields */ }
Expand description

Wrapper to provide trace to nested scope.

Each wrapped update is presented with a timestamp determined by logic.

At the same time, we require a method prior that can “invert” timestamps, and which will be applied to compaction frontiers as they are communicated back to the wrapped traces. A better explanation is pending, and until that happens use this construct at your own peril!

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impl<Tr, TInner, F, G> TraceEnter<Tr, TInner, F, G>
where Tr: TraceReader, TInner: Refines<Tr::Time> + Lattice,

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pub fn make_from(trace: Tr, logic: F, prior: G) -> Self

Makes a new trace wrapper

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impl<Tr, TInner, F, G> Clone for TraceEnter<Tr, TInner, F, G>
where Tr: TraceReader + Clone, F: Clone, G: Clone,

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fn clone(&self) -> Self

Returns a duplicate 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<Tr, TInner, F, G> TraceReader for TraceEnter<Tr, TInner, F, G>
where Tr: TraceReader<Batch: Clone>, TInner: Refines<Tr::Time> + Lattice, F: 'static + FnMut(Tr::Key<'_>, Tr::Val<'_>, Tr::TimeGat<'_>) -> TInner + Clone, G: FnMut(&TInner) -> Tr::Time + Clone + 'static,

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type Batch = BatchEnter<<Tr as TraceReader>::Batch, TInner, F>

The type of an immutable collection of updates.
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type Storage = <Tr as TraceReader>::Storage

Storage type for Self::Cursor. Likely related to Self::Batch.
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type Cursor = CursorEnter<<Tr as TraceReader>::Cursor, TInner, F>

The type used to enumerate the collections contents.
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fn map_batches<F2: FnMut(&Self::Batch)>(&self, f: F2)

Maps logic across the non-empty sequence of batches in the trace. Read more
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fn set_logical_compaction(&mut self, frontier: AntichainRef<'_, TInner>)

Advances the frontier that constrains logical compaction. Read more
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fn get_logical_compaction(&mut self) -> AntichainRef<'_, TInner>

Reports the logical compaction frontier. Read more
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fn set_physical_compaction(&mut self, frontier: AntichainRef<'_, TInner>)

Advances the frontier that constrains physical compaction. Read more
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fn get_physical_compaction(&mut self) -> AntichainRef<'_, TInner>

Reports the physical compaction frontier. Read more
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fn cursor_through( &mut self, upper: AntichainRef<'_, TInner>, ) -> Option<(Self::Cursor, Self::Storage)>

Acquires a cursor to the restriction of the collection’s contents to updates at times not greater or equal to an element of upper. Read more
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fn cursor(&mut self) -> (Self::Cursor, Self::Storage)

Provides a cursor over updates contained in the trace.
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fn read_upper(&mut self, target: &mut Antichain<Self::Time>)

Reads the upper frontier of committed times.
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fn advance_upper(&mut self, upper: &mut Antichain<Self::Time>)

Advances upper by any empty batches. Read more
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impl<Tr, TInner, F, G> WithLayout for TraceEnter<Tr, TInner, F, G>
where Tr: TraceReader<Batch: Clone>, TInner: Refines<Tr::Time> + Lattice, F: Clone, G: Clone,

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type Layout = (<<Tr as WithLayout>::Layout as Layout>::KeyContainer, <<Tr as WithLayout>::Layout as Layout>::ValContainer, Vec<TInner>, <<Tr as WithLayout>::Layout as Layout>::DiffContainer, <<Tr as WithLayout>::Layout as Layout>::OffsetContainer)

The layout.

Auto Trait Implementations§

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impl<Tr, TInner, F, G> Freeze for TraceEnter<Tr, TInner, F, G>
where Tr: Freeze, F: Freeze, G: Freeze, <Tr as LayoutExt>::Time: Freeze, TInner: Freeze,

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impl<Tr, TInner, F, G> RefUnwindSafe for TraceEnter<Tr, TInner, F, G>

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impl<Tr, TInner, F, G> Send for TraceEnter<Tr, TInner, F, G>
where Tr: Send, F: Send, G: Send, TInner: Send,

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impl<Tr, TInner, F, G> Sync for TraceEnter<Tr, TInner, F, G>
where Tr: Sync, F: Sync, G: Sync, <Tr as LayoutExt>::Time: Sync, TInner: Sync,

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impl<Tr, TInner, F, G> Unpin for TraceEnter<Tr, TInner, F, G>
where Tr: Unpin, F: Unpin, G: Unpin, <Tr as LayoutExt>::Time: Unpin, TInner: Unpin,

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impl<Tr, TInner, F, G> UnwindSafe for TraceEnter<Tr, TInner, F, G>

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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<L> LayoutExt for L
where L: WithLayout,

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type KeyOwn = <<<L as WithLayout>::Layout as Layout>::KeyContainer as BatchContainer>::Owned

Alias for an owned key of a layout.
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type Key<'a> = <<<L as WithLayout>::Layout as Layout>::KeyContainer as BatchContainer>::ReadItem<'a>

Alias for an borrowed key of a layout.
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type ValOwn = <<<L as WithLayout>::Layout as Layout>::ValContainer as BatchContainer>::Owned

Alias for an owned val of a layout.
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type Val<'a> = <<<L as WithLayout>::Layout as Layout>::ValContainer as BatchContainer>::ReadItem<'a>

Alias for an borrowed val of a layout.
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type Time = <<<L as WithLayout>::Layout as Layout>::TimeContainer as BatchContainer>::Owned

Alias for an owned time of a layout.
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type TimeGat<'a> = <<<L as WithLayout>::Layout as Layout>::TimeContainer as BatchContainer>::ReadItem<'a>

Alias for an borrowed time of a layout.
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type Diff = <<<L as WithLayout>::Layout as Layout>::DiffContainer as BatchContainer>::Owned

Alias for an owned diff of a layout.
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type DiffGat<'a> = <<<L as WithLayout>::Layout as Layout>::DiffContainer as BatchContainer>::ReadItem<'a>

Alias for an borrowed diff of a layout.
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type KeyContainer = <<L as WithLayout>::Layout as Layout>::KeyContainer

Container for update keys.
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type ValContainer = <<L as WithLayout>::Layout as Layout>::ValContainer

Container for update vals.
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type TimeContainer = <<L as WithLayout>::Layout as Layout>::TimeContainer

Container for times.
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type DiffContainer = <<L as WithLayout>::Layout as Layout>::DiffContainer

Container for diffs.
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fn owned_key(key: <L as LayoutExt>::Key<'_>) -> <L as LayoutExt>::KeyOwn

Construct an owned key from a reference.
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fn owned_val(val: <L as LayoutExt>::Val<'_>) -> <L as LayoutExt>::ValOwn

Construct an owned val from a reference.
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fn owned_time(time: <L as LayoutExt>::TimeGat<'_>) -> <L as LayoutExt>::Time

Construct an owned time from a reference.
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fn owned_diff(diff: <L as LayoutExt>::DiffGat<'_>) -> <L as LayoutExt>::Diff

Construct an owned diff from a reference.
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fn clone_time_onto( time: <L as LayoutExt>::TimeGat<'_>, onto: &mut <L as LayoutExt>::Time, )

Clones a reference time onto an owned time.
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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

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>,

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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.
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impl<T> Data for T
where T: Clone + 'static,