Struct StalledOnCoroutines

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struct StalledOnCoroutines<'tcx> {
    stalled_generators: &'tcx List<LocalDefId>,
    span: Span,
    cache: DelayedSet<Ty<'tcx>>,
}
Expand description

Detect if a goal is stalled on a coroutine that is owned by the current typeck root.

This function can (erroneously) fail to detect a predicate, i.e. it doesn’t need to be complete. However, this will lead to ambiguity errors, so we want to make it accurate.

This function can be also return false positives, which will lead to poor diagnostics so we want to keep this visitor precise too.

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§stalled_generators: &'tcx List<LocalDefId>§span: Span§cache: DelayedSet<Ty<'tcx>>

Trait Implementations§

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impl<'tcx> ProofTreeVisitor<'tcx> for StalledOnCoroutines<'tcx>

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type Result = ControlFlow<()>

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fn span(&self) -> Span

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fn visit_goal(&mut self, inspect_goal: &InspectGoal<'_, 'tcx>) -> Self::Result

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fn config(&self) -> InspectConfig

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impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for StalledOnCoroutines<'tcx>

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type Result = ControlFlow<()>

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fn visit_ty(&mut self, ty: Ty<'tcx>) -> Self::Result

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fn visit_binder<T>(&mut self, t: &Binder<I, T>) -> Self::Result
where T: TypeFoldable<I>,

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fn visit_region(&mut self, r: <I as Interner>::Region) -> Self::Result

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fn visit_const(&mut self, c: <I as Interner>::Const) -> Self::Result

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fn visit_predicate(&mut self, p: <I as Interner>::Predicate) -> Self::Result

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fn visit_clauses(&mut self, c: <I as Interner>::Clauses) -> Self::Result

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fn visit_error( &mut self, _guar: <I as Interner>::ErrorGuaranteed, ) -> Self::Result

Auto Trait Implementations§

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impl<'tcx> DynSend for StalledOnCoroutines<'tcx>

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impl<'tcx> DynSync for StalledOnCoroutines<'tcx>

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impl<'tcx> Freeze for StalledOnCoroutines<'tcx>

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impl<'tcx> !RefUnwindSafe for StalledOnCoroutines<'tcx>

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impl<'tcx> Send for StalledOnCoroutines<'tcx>

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impl<'tcx> Sync for StalledOnCoroutines<'tcx>

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impl<'tcx> Unpin for StalledOnCoroutines<'tcx>

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impl<'tcx> !UnwindSafe for StalledOnCoroutines<'tcx>

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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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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, R> CollectAndApply<T, R> for 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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impl<T> Filterable for T

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fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. 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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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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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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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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type Error = !

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impl<T> Pointable for T

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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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unsafe fn deref<'a>(ptr: usize) -> &'a T

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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

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unsafe fn drop(ptr: usize)

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Should always be Self
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where U: TryFrom<T>,

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

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

Performs the conversion.
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impl<Tcx, T> Value<Tcx> for T
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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T

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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: 56 bytes