Struct rustc_borrowck::borrow_set::BorrowSet

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pub struct BorrowSet<'tcx> {
    pub location_map: FxIndexMap<Location, BorrowData<'tcx>>,
    pub activation_map: FxIndexMap<Location, Vec<BorrowIndex>>,
    pub local_map: FxIndexMap<Local, FxIndexSet<BorrowIndex>>,
    pub locals_state_at_exit: LocalsStateAtExit,
}

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§location_map: FxIndexMap<Location, BorrowData<'tcx>>

The fundamental map relating bitvector indexes to the borrows in the MIR. Each borrow is also uniquely identified in the MIR by the Location of the assignment statement in which it appears on the right hand side. Thus the location is the map key, and its position in the map corresponds to BorrowIndex.

§activation_map: FxIndexMap<Location, Vec<BorrowIndex>>

Locations which activate borrows. NOTE: a given location may activate more than one borrow in the future when more general two-phase borrow support is introduced, but for now we only need to store one borrow index.

§local_map: FxIndexMap<Local, FxIndexSet<BorrowIndex>>

Map from local to all the borrows on that local.

§locals_state_at_exit: LocalsStateAtExit

Implementations§

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impl<'tcx> BorrowSet<'tcx>

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pub fn build( tcx: TyCtxt<'tcx>, body: &Body<'tcx>, locals_are_invalidated_at_exit: bool, move_data: &MoveData<'tcx> ) -> Self

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pub(crate) fn activations_at_location( &self, location: Location ) -> &[BorrowIndex]

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pub fn len(&self) -> usize

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pub(crate) fn indices(&self) -> impl Iterator<Item = BorrowIndex>

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pub(crate) fn iter_enumerated( &self ) -> impl Iterator<Item = (BorrowIndex, &BorrowData<'tcx>)>

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pub(crate) fn get_index_of(&self, location: &Location) -> Option<BorrowIndex>

Trait Implementations§

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impl<'tcx> Index<BorrowIndex> for BorrowSet<'tcx>

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type Output = BorrowData<'tcx>

The returned type after indexing.
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fn index(&self, index: BorrowIndex) -> &BorrowData<'tcx>

Performs the indexing (container[index]) operation. Read more

Auto Trait Implementations§

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impl<'tcx> DynSend for BorrowSet<'tcx>

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impl<'tcx> DynSync for BorrowSet<'tcx>

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impl<'tcx> Freeze for BorrowSet<'tcx>

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

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impl<'tcx> Send for BorrowSet<'tcx>

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impl<'tcx> Sync for BorrowSet<'tcx>

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impl<'tcx> Unpin for BorrowSet<'tcx>

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

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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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Returns the argument unchanged.

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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>

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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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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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type Error = !

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

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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: 208 bytes