Struct rustc_trait_selection::infer::InferCtxtInner

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pub struct InferCtxtInner<'tcx> {
    undo_log: InferCtxtUndoLogs<'tcx>,
    projection_cache: ProjectionCacheStorage<'tcx>,
    type_variable_storage: TypeVariableStorage<'tcx>,
    const_unification_storage: UnificationTable<InPlace<ConstVidKey<'tcx>, Vec<VarValue<ConstVidKey<'tcx>>>, ()>>,
    int_unification_storage: UnificationTable<InPlace<IntVid, Vec<VarValue<IntVid>>, ()>>,
    float_unification_storage: UnificationTable<InPlace<FloatVid, Vec<VarValue<FloatVid>>, ()>>,
    effect_unification_storage: UnificationTable<InPlace<EffectVidKey<'tcx>, Vec<VarValue<EffectVidKey<'tcx>>>, ()>>,
    region_constraint_storage: Option<RegionConstraintStorage<'tcx>>,
    region_obligations: Vec<RegionObligation<'tcx>>,
    opaque_type_storage: OpaqueTypeStorage<'tcx>,
}
Expand description

This type contains all the things within InferCtxt that sit within a RefCell and are involved with taking/rolling back snapshots. Snapshot operations are hot enough that we want only one call to borrow_mut per call to start_snapshot and rollback_to.

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§undo_log: InferCtxtUndoLogs<'tcx>§projection_cache: ProjectionCacheStorage<'tcx>§type_variable_storage: TypeVariableStorage<'tcx>§const_unification_storage: UnificationTable<InPlace<ConstVidKey<'tcx>, Vec<VarValue<ConstVidKey<'tcx>>>, ()>>§int_unification_storage: UnificationTable<InPlace<IntVid, Vec<VarValue<IntVid>>, ()>>§float_unification_storage: UnificationTable<InPlace<FloatVid, Vec<VarValue<FloatVid>>, ()>>§effect_unification_storage: UnificationTable<InPlace<EffectVidKey<'tcx>, Vec<VarValue<EffectVidKey<'tcx>>>, ()>>§region_constraint_storage: Option<RegionConstraintStorage<'tcx>>§region_obligations: Vec<RegionObligation<'tcx>>§opaque_type_storage: OpaqueTypeStorage<'tcx>

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impl<'tcx> InferCtxtInner<'tcx>

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pub fn rollback_to(&mut self, snapshot: Snapshot<'tcx>)

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pub fn commit(&mut self, snapshot: Snapshot<'tcx>)

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impl<'tcx> InferCtxtInner<'tcx>

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pub fn region_obligations(&self) -> &[RegionObligation<'tcx>]

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pub fn projection_cache(&mut self) -> ProjectionCache<'_, 'tcx>

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pub fn opaque_types(&mut self) -> OpaqueTypeTable<'_, 'tcx>

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pub fn unwrap_region_constraints( &mut self, ) -> RegionConstraintCollector<'_, 'tcx>

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pub fn iter_opaque_types( &self, ) -> impl Iterator<Item = (OpaqueTypeKey<TyCtxt<'tcx>>, OpaqueHiddenType<'tcx>)>

Trait Implementations§

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impl<'tcx> Clone for InferCtxtInner<'tcx>

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fn clone(&self) -> InferCtxtInner<'tcx>

Returns a copy 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<'tcx> Rollback<UndoLog<'tcx>> for InferCtxtInner<'tcx>

The Rollback trait defines how to rollback a particular action.

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fn reverse(&mut self, undo: UndoLog<'tcx>)

Auto Trait Implementations§

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impl<'tcx> Freeze for InferCtxtInner<'tcx>

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

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impl<'tcx> !Send for InferCtxtInner<'tcx>

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impl<'tcx> !Sync for InferCtxtInner<'tcx>

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impl<'tcx> Unpin for InferCtxtInner<'tcx>

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

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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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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<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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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> 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<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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> 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,

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

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impl<T> MaybeSendSync for T

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: 480 bytes