rustc_type_ir::search_graph

Enum UpdateParentGoalCtxt

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enum UpdateParentGoalCtxt<'a, X: Cx> {
    Ordinary(&'a NestedGoals<X>),
    ProvisionalCacheHit,
}
Expand description

While SearchGraph::update_parent_goal can be mostly shared between ordinary nested goals/global cache hits and provisional cache hits, using the provisional cache should not add any nested goals.

nested_goals are only used when checking whether global cache entries are applicable. This only cares about whether a goal is actually accessed. Given that the usage of the provisional cache is fully deterministic, we don’t need to track the nested goals used while computing a provisional cache entry.

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Ordinary(&'a NestedGoals<X>)

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ProvisionalCacheHit

Auto Trait Implementations§

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impl<'a, X> DynSend for UpdateParentGoalCtxt<'a, X>
where <X as Cx>::Input: DynSync,

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impl<'a, X> DynSync for UpdateParentGoalCtxt<'a, X>
where <X as Cx>::Input: DynSync,

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impl<'a, X> Freeze for UpdateParentGoalCtxt<'a, X>

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impl<'a, X> RefUnwindSafe for UpdateParentGoalCtxt<'a, X>
where <X as Cx>::Input: RefUnwindSafe,

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impl<'a, X> Send for UpdateParentGoalCtxt<'a, X>
where <X as Cx>::Input: Sync,

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impl<'a, X> Sync for UpdateParentGoalCtxt<'a, X>
where <X as Cx>::Input: Sync,

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impl<'a, X> Unpin for UpdateParentGoalCtxt<'a, X>

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impl<'a, X> UnwindSafe for UpdateParentGoalCtxt<'a, X>
where <X as Cx>::Input: RefUnwindSafe,

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impl<T> Aligned for T

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const ALIGN: Alignment

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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where T: ?Sized,

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where T: ?Sized,

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

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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fn from(t: T) -> T

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

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fn in_current_span(self) -> Instrumented<Self>

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where F: FnOnce(&Self) -> bool,

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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Should always be Self
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type Error = <U as TryFrom<T>>::Error

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Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes

Size for each variant:

  • Ordinary: 8 bytes
  • ProvisionalCacheHit: 0 bytes