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>( &'a self, trans: &'a mut T, ) -> TransferFunction<'a, T>
Trait Implementations§
source§impl<'tcx> AnalysisDomain<'tcx> for MaybeBorrowedLocals
impl<'tcx> AnalysisDomain<'tcx> for MaybeBorrowedLocals
source§type Domain = BitSet<Local>
type Domain = BitSet<Local>
The type that holds the dataflow state at any given point in the program.
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§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§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 moresource§impl<'tcx> GenKillAnalysis<'tcx> for MaybeBorrowedLocals
impl<'tcx> GenKillAnalysis<'tcx> for MaybeBorrowedLocals
type Idx = Local
fn domain_size(&self, body: &Body<'tcx>) -> usize
source§fn statement_effect(
&mut self,
trans: &mut impl GenKill<Self::Idx>,
statement: &Statement<'tcx>,
location: Location,
)
fn statement_effect( &mut self, trans: &mut impl GenKill<Self::Idx>, statement: &Statement<'tcx>, location: Location, )
See
Analysis::apply_statement_effect
. Note how the second arg differs.source§fn terminator_effect<'mir>(
&mut self,
trans: &mut Self::Domain,
terminator: &'mir Terminator<'tcx>,
location: Location,
) -> TerminatorEdges<'mir, 'tcx>
fn terminator_effect<'mir>( &mut self, trans: &mut Self::Domain, terminator: &'mir Terminator<'tcx>, location: Location, ) -> TerminatorEdges<'mir, 'tcx>
See
Analysis::apply_terminator_effect
.source§fn call_return_effect(
&mut self,
_trans: &mut Self::Domain,
_block: BasicBlock,
_return_places: CallReturnPlaces<'_, 'tcx>,
)
fn call_return_effect( &mut self, _trans: &mut Self::Domain, _block: BasicBlock, _return_places: CallReturnPlaces<'_, 'tcx>, )
See
Analysis::apply_call_return_effect
.source§fn before_statement_effect(
&mut self,
_trans: &mut impl GenKill<Self::Idx>,
_statement: &Statement<'tcx>,
_location: Location,
)
fn before_statement_effect( &mut self, _trans: &mut impl GenKill<Self::Idx>, _statement: &Statement<'tcx>, _location: Location, )
See
Analysis::apply_before_statement_effect
. Note how the second arg
differs.source§fn before_terminator_effect(
&mut self,
_trans: &mut Self::Domain,
_terminator: &Terminator<'tcx>,
_location: Location,
)
fn before_terminator_effect( &mut self, _trans: &mut Self::Domain, _terminator: &Terminator<'tcx>, _location: Location, )
See
Analysis::apply_before_terminator_effect
.source§fn switch_int_edge_effects<G: GenKill<Self::Idx>>(
&mut self,
_block: BasicBlock,
_discr: &Operand<'tcx>,
_edge_effects: &mut impl SwitchIntEdgeEffects<G>,
)
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
.impl Copy for MaybeBorrowedLocals
Auto Trait Implementations§
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<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
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§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)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<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