pub struct MaybeRequiresStorage<'mir, 'tcx> {
    borrowed_locals: ResultsCursor<'mir, 'tcx, MaybeBorrowedLocals>,
}
Expand description

Dataflow analysis that determines whether each local requires storage at a given location; i.e. whether its storage can go away without being observed.

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§borrowed_locals: ResultsCursor<'mir, 'tcx, MaybeBorrowedLocals>

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impl<'mir, 'tcx> MaybeRequiresStorage<'mir, 'tcx>

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pub fn new( borrowed_locals: ResultsCursor<'mir, 'tcx, MaybeBorrowedLocals> ) -> Self

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impl<'tcx> MaybeRequiresStorage<'_, 'tcx>

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fn check_for_move(&mut self, trans: &mut impl GenKill<Local>, loc: Location)

Kill locals that are fully moved and have not been borrowed.

Trait Implementations§

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impl<'tcx> AnalysisDomain<'tcx> for MaybeRequiresStorage<'_, 'tcx>

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type Domain = BitSet<Local>

The type that holds the dataflow state at any given point in the program.
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const NAME: &'static str = "requires_storage"

A descriptive name for this analysis. Used only for debugging. Read more
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fn bottom_value(&self, body: &Body<'tcx>) -> Self::Domain

Returns the initial value of the dataflow state upon entry to each basic block.
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fn initialize_start_block(&self, body: &Body<'tcx>, on_entry: &mut Self::Domain)

Mutates the initial value of the dataflow state upon entry to the START_BLOCK. Read more
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type Direction = Forward

The direction of this analysis. Either Forward or Backward.
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impl<'tcx> GenKillAnalysis<'tcx> for MaybeRequiresStorage<'_, 'tcx>

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type Idx = Local

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fn domain_size(&self, body: &Body<'tcx>) -> usize

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fn before_statement_effect( &mut self, trans: &mut impl GenKill<Self::Idx>, stmt: &Statement<'tcx>, loc: Location )

See Analysis::apply_before_statement_effect. Note how the second arg differs.
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fn statement_effect( &mut self, trans: &mut impl GenKill<Self::Idx>, _: &Statement<'tcx>, loc: Location )

See Analysis::apply_statement_effect. Note how the second arg differs.
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fn before_terminator_effect( &mut self, trans: &mut Self::Domain, terminator: &Terminator<'tcx>, loc: Location )

See Analysis::apply_before_terminator_effect.
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fn terminator_effect<'t>( &mut self, trans: &mut Self::Domain, terminator: &'t Terminator<'tcx>, loc: Location ) -> TerminatorEdges<'t, 'tcx>

See Analysis::apply_terminator_effect.
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fn call_return_effect( &mut self, trans: &mut Self::Domain, _block: BasicBlock, return_places: CallReturnPlaces<'_, 'tcx> )

See Analysis::apply_call_return_effect.
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fn switch_int_edge_effects<G: GenKill<Self::Idx>>( &mut self, _block: BasicBlock, _discr: &Operand<'tcx>, _edge_effects: &mut impl SwitchIntEdgeEffects<G> )

See Analysis::apply_switch_int_edge_effects.

Auto Trait Implementations§

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impl<'mir, 'tcx> DynSend for MaybeRequiresStorage<'mir, 'tcx>

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impl<'mir, 'tcx> DynSync for MaybeRequiresStorage<'mir, 'tcx>

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impl<'mir, 'tcx> Freeze for MaybeRequiresStorage<'mir, 'tcx>

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impl<'mir, 'tcx> !RefUnwindSafe for MaybeRequiresStorage<'mir, 'tcx>

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impl<'mir, 'tcx> Send for MaybeRequiresStorage<'mir, 'tcx>

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impl<'mir, 'tcx> Sync for MaybeRequiresStorage<'mir, 'tcx>

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impl<'mir, 'tcx> Unpin for MaybeRequiresStorage<'mir, 'tcx>

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impl<'mir, 'tcx> !UnwindSafe for MaybeRequiresStorage<'mir, '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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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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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>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
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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impl<T> MaybeResult<T> for T

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type Error = !

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

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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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

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

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T
where T: Send + Sync,

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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: 128 bytes