rustc_mir_build::builder::matches::util

Struct FakeBorrowCollector

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pub(super) struct FakeBorrowCollector<'a, 'b, 'tcx> {
    cx: &'a mut Builder<'b, 'tcx>,
    scrutinee_base: PlaceBase,
    fake_borrows: FxIndexMap<Place<'tcx>, FakeBorrowKind>,
}

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§cx: &'a mut Builder<'b, 'tcx>§scrutinee_base: PlaceBase

Base of the scrutinee place. Used to distinguish bindings inside the scrutinee place from bindings inside deref patterns.

§fake_borrows: FxIndexMap<Place<'tcx>, FakeBorrowKind>

Store for each place the kind of borrow to take. In case of conflicts, we take the strongest borrow (i.e. Deep > Shallow). Invariant: for any place in fake_borrows, all the prefixes of this place that are dereferences are also borrowed with the same of stronger borrow kind.

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impl<'a, 'b, 'tcx> FakeBorrowCollector<'a, 'b, 'tcx>

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fn fake_borrow(&mut self, place: Place<'tcx>, kind: FakeBorrowKind)

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fn fake_borrow_deref_prefixes( &mut self, place: Place<'tcx>, kind: FakeBorrowKind, )

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fn visit_candidate(&mut self, candidate: &Candidate<'_, 'tcx>)

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fn visit_flat_pat(&mut self, flat_pat: &FlatPat<'_, 'tcx>)

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fn visit_match_pair(&mut self, match_pair: &MatchPairTree<'_, 'tcx>)

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fn visit_binding(&mut self, _: &Binding<'tcx>)

Auto Trait Implementations§

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impl<'a, 'b, 'tcx> !DynSend for FakeBorrowCollector<'a, 'b, 'tcx>

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impl<'a, 'b, 'tcx> !DynSync for FakeBorrowCollector<'a, 'b, 'tcx>

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impl<'a, 'b, 'tcx> Freeze for FakeBorrowCollector<'a, 'b, 'tcx>

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impl<'a, 'b, 'tcx> !RefUnwindSafe for FakeBorrowCollector<'a, 'b, 'tcx>

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impl<'a, 'b, 'tcx> !Send for FakeBorrowCollector<'a, 'b, 'tcx>

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impl<'a, 'b, 'tcx> !Sync for FakeBorrowCollector<'a, 'b, 'tcx>

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impl<'a, 'b, 'tcx> Unpin for FakeBorrowCollector<'a, 'b, 'tcx>

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impl<'a, 'b, 'tcx> !UnwindSafe for FakeBorrowCollector<'a, 'b, '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

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

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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

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

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unsafe fn drop(ptr: usize)

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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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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Performs the conversion.
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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: 80 bytes