pub struct MaybeBorrowedLocals;
Expand description
A dataflow analysis that tracks whether a pointer or reference could possibly exist that points to a given local. This analysis ignores fake borrows, so it should not be used by borrowck.
At present, this is used as a very limited form of alias analysis. For example,
MaybeBorrowedLocals
is used to compute which locals are live during a yield expression for
immovable coroutines.
Implementations§
Source§impl MaybeBorrowedLocals
impl MaybeBorrowedLocals
pub(super) fn transfer_function<'a, T>( trans: &'a mut T, ) -> TransferFunction<'a, T>
Trait Implementations§
Source§impl<'tcx> Analysis<'tcx> for MaybeBorrowedLocals
impl<'tcx> Analysis<'tcx> for MaybeBorrowedLocals
Source§const NAME: &'static str = "maybe_borrowed_locals"
const NAME: &'static str = "maybe_borrowed_locals"
A descriptive name for this analysis. Used only for debugging. Read more
Source§type Domain = BitSet<Local>
type Domain = BitSet<Local>
The type that holds the dataflow state at any given point in the program.
Source§fn bottom_value(&self, body: &Body<'tcx>) -> Self::Domain
fn bottom_value(&self, body: &Body<'tcx>) -> Self::Domain
Returns the initial value of the dataflow state upon entry to each basic block.
Source§fn initialize_start_block(&self, _: &Body<'tcx>, _: &mut Self::Domain)
fn initialize_start_block(&self, _: &Body<'tcx>, _: &mut Self::Domain)
Mutates the initial value of the dataflow state upon entry to the
START_BLOCK
. Read moreSource§fn apply_statement_effect(
&mut self,
trans: &mut Self::Domain,
statement: &Statement<'tcx>,
location: Location,
)
fn apply_statement_effect( &mut self, trans: &mut Self::Domain, statement: &Statement<'tcx>, location: Location, )
Updates the current dataflow state with the effect of evaluating a statement.
Source§fn apply_terminator_effect<'mir>(
&mut self,
trans: &mut Self::Domain,
terminator: &'mir Terminator<'tcx>,
location: Location,
) -> TerminatorEdges<'mir, 'tcx>
fn apply_terminator_effect<'mir>( &mut self, trans: &mut Self::Domain, terminator: &'mir Terminator<'tcx>, location: Location, ) -> TerminatorEdges<'mir, 'tcx>
Updates the current dataflow state with the effect of evaluating a terminator. Read more
Source§fn apply_before_statement_effect(
&mut self,
_state: &mut Self::Domain,
_statement: &Statement<'tcx>,
_location: Location,
)
fn apply_before_statement_effect( &mut self, _state: &mut Self::Domain, _statement: &Statement<'tcx>, _location: Location, )
Updates the current dataflow state with an effect that occurs immediately before the
given statement. Read more
Source§fn apply_before_terminator_effect(
&mut self,
_state: &mut Self::Domain,
_terminator: &Terminator<'tcx>,
_location: Location,
)
fn apply_before_terminator_effect( &mut self, _state: &mut Self::Domain, _terminator: &Terminator<'tcx>, _location: Location, )
Updates the current dataflow state with an effect that occurs immediately before the
given terminator. Read more
Source§fn apply_call_return_effect(
&mut self,
_state: &mut Self::Domain,
_block: BasicBlock,
_return_places: CallReturnPlaces<'_, 'tcx>,
)
fn apply_call_return_effect( &mut self, _state: &mut Self::Domain, _block: BasicBlock, _return_places: CallReturnPlaces<'_, 'tcx>, )
Updates the current dataflow state with the effect of a successful return from a
Call
terminator. Read moreSource§fn apply_switch_int_edge_effects(
&mut self,
_block: BasicBlock,
_discr: &Operand<'tcx>,
_apply_edge_effects: &mut impl SwitchIntEdgeEffects<Self::Domain>,
)
fn apply_switch_int_edge_effects( &mut self, _block: BasicBlock, _discr: &Operand<'tcx>, _apply_edge_effects: &mut impl SwitchIntEdgeEffects<Self::Domain>, )
Updates the current dataflow state with the effect of taking a particular branch in a
SwitchInt
terminator. Read moreSource§impl Clone for MaybeBorrowedLocals
impl Clone for MaybeBorrowedLocals
Source§fn clone(&self) -> MaybeBorrowedLocals
fn clone(&self) -> MaybeBorrowedLocals
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreAuto Trait Implementations§
impl DynSend for MaybeBorrowedLocals
impl DynSync for MaybeBorrowedLocals
impl Freeze for MaybeBorrowedLocals
impl RefUnwindSafe for MaybeBorrowedLocals
impl Send for MaybeBorrowedLocals
impl Sync for MaybeBorrowedLocals
impl Unpin for MaybeBorrowedLocals
impl UnwindSafe for MaybeBorrowedLocals
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> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
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<T> Pointable for T
impl<T> Pointable 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: 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: 0 bytes