Struct rustc_borrowck::region_infer::RegionTracker
source · pub struct RegionTracker {
max_placeholder_universe_reached: UniverseIndex,
min_reachable_universe: UniverseIndex,
pub(crate) representative: RegionVid,
representative_is_placeholder: bool,
representative_is_existential: bool,
}
Expand description
An annotation for region graph SCCs that tracks the values of its elements.
Fields§
§max_placeholder_universe_reached: UniverseIndex
The largest universe of a placeholder reached from this SCC. This includes placeholders within this SCC.
min_reachable_universe: UniverseIndex
The smallest universe index reachable form the nodes of this SCC.
representative: RegionVid
The representative Region Variable Id for this SCC. We prefer placeholders over existentially quantified variables, otherwise it’s the one with the smallest Region Variable ID.
representative_is_placeholder: bool
Is the current representative a placeholder?
representative_is_existential: bool
Is the current representative existentially quantified?
Implementations§
source§impl RegionTracker
impl RegionTracker
pub(crate) fn new(rvid: RegionVid, definition: &RegionDefinition<'_>) -> Self
sourcefn min_universe(self) -> UniverseIndex
fn min_universe(self) -> UniverseIndex
The smallest-indexed universe reachable from and/or in this SCC.
fn merge_min_max_seen(&mut self, other: &Self)
sourcepub(crate) fn has_incompatible_universes(&self) -> bool
pub(crate) fn has_incompatible_universes(&self) -> bool
Returns true
if during the annotated SCC reaches a placeholder
with a universe larger than the smallest reachable one, false
otherwise.
Trait Implementations§
source§impl Annotation for RegionTracker
impl Annotation for RegionTracker
source§fn merge_scc(self, other: Self) -> Self
fn merge_scc(self, other: Self) -> Self
source§fn merge_reached(self, other: Self) -> Self
fn merge_reached(self, other: Self) -> Self
fn update_scc(&mut self, other: Self)
fn update_reachable(&mut self, other: Self)
source§impl Clone for RegionTracker
impl Clone for RegionTracker
source§fn clone(&self) -> RegionTracker
fn clone(&self) -> RegionTracker
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for RegionTracker
impl Debug for RegionTracker
impl Copy for RegionTracker
Auto Trait Implementations§
impl DynSend for RegionTracker
impl DynSync for RegionTracker
impl Freeze for RegionTracker
impl RefUnwindSafe for RegionTracker
impl Send for RegionTracker
impl Sync for RegionTracker
impl Unpin for RegionTracker
impl UnwindSafe for RegionTracker
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<T> Filterable for T
impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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 moresource§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
source§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T
source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> ErasedDestructor for Twhere
T: 'static,
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: 16 bytes