rustc_next_trait_solver::solve::search_graph

Struct SearchGraphDelegate

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pub(super) struct SearchGraphDelegate<D: SolverDelegate> {
    _marker: PhantomData<D>,
}
Expand description

This type is never constructed. We only use it to implement search_graph::Delegate for all types which impl SolverDelegate and doing it directly fails in coherence.

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§_marker: PhantomData<D>

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impl<D, I> Delegate for SearchGraphDelegate<D>
where D: SolverDelegate<Interner = I>, I: Interner,

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const ENABLE_PROVISIONAL_CACHE: bool = true

Whether to use the provisional cache. Set to false by a fuzzer when validating the search graph.
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const FIXPOINT_STEP_LIMIT: usize = 8usize

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const DIVIDE_AVAILABLE_DEPTH_ON_OVERFLOW: usize = 4usize

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type Cx = I

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type ValidationScope = Infallible

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type ProofTreeBuilder = ProofTreeBuilder<D, I>

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fn enter_validation_scope( _cx: Self::Cx, _input: CanonicalInput<I>, ) -> Option<Self::ValidationScope>

Returning Some disables the global cache for the current goal. Read more
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fn inspect_is_noop(inspect: &mut Self::ProofTreeBuilder) -> bool

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fn initial_provisional_result( cx: I, kind: PathKind, input: CanonicalInput<I>, ) -> QueryResult<I>

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fn is_initial_provisional_result( cx: Self::Cx, kind: PathKind, input: CanonicalInput<I>, result: QueryResult<I>, ) -> bool

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fn on_stack_overflow( cx: I, inspect: &mut ProofTreeBuilder<D>, input: CanonicalInput<I>, ) -> QueryResult<I>

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fn on_fixpoint_overflow(cx: I, input: CanonicalInput<I>) -> QueryResult<I>

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fn is_ambiguous_result(result: QueryResult<I>) -> bool

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fn propagate_ambiguity( cx: I, for_input: CanonicalInput<I>, from_result: QueryResult<I>, ) -> QueryResult<I>

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fn step_is_coinductive(cx: I, input: CanonicalInput<I>) -> bool

Auto Trait Implementations§

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impl<D> DynSend for SearchGraphDelegate<D>
where D: DynSend,

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impl<D> DynSync for SearchGraphDelegate<D>
where D: DynSync,

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impl<D> Freeze for SearchGraphDelegate<D>

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impl<D> RefUnwindSafe for SearchGraphDelegate<D>
where D: RefUnwindSafe,

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impl<D> Send for SearchGraphDelegate<D>
where D: Send,

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impl<D> Sync for SearchGraphDelegate<D>
where D: Sync,

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impl<D> Unpin for SearchGraphDelegate<D>
where D: Unpin,

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impl<D> UnwindSafe for SearchGraphDelegate<D>
where D: UnwindSafe,

Blanket Implementations§

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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> 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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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<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

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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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<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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impl<I, T> UpcastFrom<I, T> for T

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fn upcast_from(from: T, _tcx: I) -> T

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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.

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