Skip to main content

RegionCtxt

Struct RegionCtxt 

Source
pub(super) struct RegionCtxt<'a, 'tcx> {
    pub(super) infcx: &'a BorrowckInferCtxt<'tcx>,
    pub(super) definitions: Frozen<IndexVec<RegionVid, RegionDefinition<'tcx>>>,
    pub(super) universal_region_relations: &'a UniversalRegionRelations<'tcx>,
    pub(super) constraint_sccs: Sccs<RegionVid, ConstraintSccIndex>,
    pub(super) scc_annotations: IndexVec<ConstraintSccIndex, RegionTracker>,
    pub(super) rev_scc_graph: ReverseSccGraph,
    pub(super) scc_values: RegionValues<'tcx, ConstraintSccIndex>,
}
Expand description

A slimmed down version of crate::region_infer::RegionInferenceContext used only by opaque type handling.

Fields§

§infcx: &'a BorrowckInferCtxt<'tcx>§definitions: Frozen<IndexVec<RegionVid, RegionDefinition<'tcx>>>§universal_region_relations: &'a UniversalRegionRelations<'tcx>§constraint_sccs: Sccs<RegionVid, ConstraintSccIndex>§scc_annotations: IndexVec<ConstraintSccIndex, RegionTracker>§rev_scc_graph: ReverseSccGraph§scc_values: RegionValues<'tcx, ConstraintSccIndex>

Implementations§

Source§

impl<'a, 'tcx> RegionCtxt<'a, 'tcx>

Source

pub(super) fn new( infcx: &'a BorrowckInferCtxt<'tcx>, universal_region_relations: &'a Frozen<UniversalRegionRelations<'tcx>>, location_map: Rc<DenseLocationMap>, constraints: &MirTypeckRegionConstraints<'tcx>, ) -> RegionCtxt<'a, 'tcx>

Creates a new RegionCtxt used to compute defining opaque type uses.

This does not yet propagate region values. This is instead done lazily when applying member constraints.

Source

pub(super) fn representative(&self, vid: RegionVid) -> Representative

Source

pub(crate) fn max_placeholder_universe_reached( &self, scc: ConstraintSccIndex, ) -> UniverseIndex

Source

pub(super) fn universal_regions(&self) -> &UniversalRegions<'tcx>

Source

pub(super) fn eval_equal(&self, r1_vid: RegionVid, r2_vid: RegionVid) -> bool

Auto Trait Implementations§

§

impl<'a, 'tcx> !DynSend for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> !DynSync for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> Freeze for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> !RefUnwindSafe for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> !Send for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> !Sync for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> Unpin for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> UnsafeUnpin for RegionCtxt<'a, 'tcx>

§

impl<'a, 'tcx> !UnwindSafe for RegionCtxt<'a, 'tcx>

Blanket Implementations§

Source§

impl<T> Aligned for T

Source§

const ALIGN: Alignment

Alignment of Self.
Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

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

Source§

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<_>>()).

Source§

type Output = R

Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T> Instrument for T

Source§

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> IntoEither for T

Source§

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
Source§

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
Source§

impl<K> IntoQueryKey<K> for K

Source§

fn into_query_key(self) -> K

Argument conversion from Self to K. This should always be a very cheap conversion, e.g. LocalDefId::to_def_id.
Source§

impl<T> MaybeResult<T> for T

Source§

type Error = !

Source§

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

Source§

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

Source§

impl<T> Pointable for T

Source§

const ALIGN: usize

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

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

Dereferences the given pointer. Read more
Source§

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

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

Source§

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

Source§

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

Source§

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

Source§

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

Source§

fn vzip(self) -> V

Source§

impl<T> WithSubscriber for T

Source§

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
Source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
Source§

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

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: 424 bytes