Struct rustc_borrowck::region_infer::RegionDefinition

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pub(crate) struct RegionDefinition<'tcx> {
    pub(crate) origin: NllRegionVariableOrigin,
    pub(crate) universe: UniverseIndex,
    pub(crate) external_name: Option<Region<'tcx>>,
}

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§origin: NllRegionVariableOrigin

What kind of variable is this – a free region? existential variable? etc. (See the NllRegionVariableOrigin for more info.)

§universe: UniverseIndex

Which universe is this region variable defined in? This is most often ty::UniverseIndex::ROOT, but when we encounter forall-quantifiers like for<'a> { 'a = 'b }, we would create the variable for 'a in a fresh universe that extends ROOT.

§external_name: Option<Region<'tcx>>

If this is ’static or an early-bound region, then this is Some(X) where X is the name of the region.

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impl<'tcx> RegionDefinition<'tcx>

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fn new(universe: UniverseIndex, rv_origin: RegionVariableOrigin) -> Self

Trait Implementations§

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impl<'tcx> Debug for RegionDefinition<'tcx>

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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<'tcx> DynSend for RegionDefinition<'tcx>

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impl<'tcx> DynSync for RegionDefinition<'tcx>

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impl<'tcx> Freeze for RegionDefinition<'tcx>

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impl<'tcx> RefUnwindSafe for RegionDefinition<'tcx>

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impl<'tcx> Send for RegionDefinition<'tcx>

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impl<'tcx> Sync for RegionDefinition<'tcx>

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impl<'tcx> Unpin for RegionDefinition<'tcx>

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impl<'tcx> UnwindSafe for RegionDefinition<'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, 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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fn from(t: T) -> T

Returns the argument unchanged.

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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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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<P> IntoQueryParam<P> for P

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fn into_query_param(self) -> P

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type Error = !

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

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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

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Dereferences the given pointer. Read more
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Drops the object pointed to by the given pointer. Read more
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type Output = T

Should always be Self
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type Error = Infallible

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

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

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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: 32 bytes