EvaluationResult

rustc_type_ir::search_graph

Struct EvaluationResult 

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struct EvaluationResult<X: Cx> {
    encountered_overflow: bool,
    required_depth: usize,
    heads: CycleHeads,
    nested_goals: NestedGoals<X>,
    result: X::Result,
}
Expand description

The final result of evaluating a goal.

We reset encountered_overflow when reevaluating a goal, but need to track whether we’ve hit the recursion limit at all for correctness.

We’ve previously simply returned the final StackEntry but this made it easy to accidentally drop information from the previous evaluation.

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§encountered_overflow: bool§required_depth: usize§heads: CycleHeads§nested_goals: NestedGoals<X>§result: X::Result

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impl<X: Cx> EvaluationResult<X>

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fn finalize( final_entry: StackEntry<X>, encountered_overflow: bool, result: X::Result, ) -> EvaluationResult<X>

Trait Implementations§

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impl<X> Debug for EvaluationResult<X>
where X: Cx,

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fn fmt(&self, __f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<X> DynSend for EvaluationResult<X>
where <X as Cx>::Result: DynSend, <X as Cx>::Input: DynSend,

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impl<X> DynSync for EvaluationResult<X>
where <X as Cx>::Result: DynSync, <X as Cx>::Input: DynSync,

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impl<X> Freeze for EvaluationResult<X>
where <X as Cx>::Result: Freeze,

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impl<X> RefUnwindSafe for EvaluationResult<X>
where <X as Cx>::Result: RefUnwindSafe, <X as Cx>::Input: RefUnwindSafe,

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impl<X> Send for EvaluationResult<X>
where <X as Cx>::Result: Send, <X as Cx>::Input: Send,

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impl<X> Sync for EvaluationResult<X>
where <X as Cx>::Result: Sync, <X as Cx>::Input: Sync,

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impl<X> Unpin for EvaluationResult<X>
where <X as Cx>::Result: Unpin, <X as Cx>::Input: Unpin,

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impl<X> UnwindSafe for EvaluationResult<X>
where <X as Cx>::Result: UnwindSafe, <X as Cx>::Input: UnwindSafe,

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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<T> ErasedDestructor for T
where T: 'static,

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.