pub struct FreeRegionsVisitor<'tcx, OP>{
pub tcx: TyCtxt<'tcx>,
pub param_env: ParamEnv<'tcx>,
pub op: OP,
}
Expand description
Visits free regions in the type that are relevant for liveness computation.
These regions are passed to OP
.
Specifically, we visit all of the regions of types recursively, except if
the type is an alias, we look at the outlives bounds in the param-env
and alias’s item bounds. If there is a unique outlives bound, then visit
that instead. If there is not a unique but there is a 'static
outlives
bound, then don’t visit anything. Otherwise, walk through the opaque’s
regions structurally.
Fields§
§tcx: TyCtxt<'tcx>
§param_env: ParamEnv<'tcx>
§op: OP
Trait Implementations§
source§impl<'tcx, OP> TypeVisitor<TyCtxt<'tcx>> for FreeRegionsVisitor<'tcx, OP>
impl<'tcx, OP> TypeVisitor<TyCtxt<'tcx>> for FreeRegionsVisitor<'tcx, OP>
fn visit_binder<T>(&mut self, t: &Binder<TyCtxt<'tcx>, T>)where
T: TypeVisitable<TyCtxt<'tcx>>,
fn visit_region(&mut self, r: Region<'tcx>)
fn visit_ty(&mut self, ty: Ty<'tcx>)
type Result = ()
fn visit_const(&mut self, c: <I as Interner>::Const) -> Self::Result
fn visit_predicate(&mut self, p: <I as Interner>::Predicate) -> Self::Result
fn visit_clauses(&mut self, p: <I as Interner>::Clauses) -> Self::Result
fn visit_error( &mut self, _guar: <I as Interner>::ErrorGuaranteed, ) -> Self::Result
Auto Trait Implementations§
impl<'tcx, OP> Freeze for FreeRegionsVisitor<'tcx, OP>where
OP: Freeze,
impl<'tcx, OP> !RefUnwindSafe for FreeRegionsVisitor<'tcx, OP>
impl<'tcx, OP> !Send for FreeRegionsVisitor<'tcx, OP>
impl<'tcx, OP> !Sync for FreeRegionsVisitor<'tcx, OP>
impl<'tcx, OP> Unpin for FreeRegionsVisitor<'tcx, OP>where
OP: Unpin,
impl<'tcx, OP> !UnwindSafe for FreeRegionsVisitor<'tcx, OP>
Blanket Implementations§
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
Mutably borrows from an owned value. Read more
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>
Creates a filterable data provider with the given name for debugging. Read more
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>
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 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>
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 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<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: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.