Struct rustc_mir_dataflow::impls::MaybeBorrowedLocals
source · pub struct MaybeBorrowedLocals;
Expand description
A dataflow analysis that tracks whether a pointer or reference could possibly exist that points to a given local.
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 generators.
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
§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
.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 impl GenKill<Self::Idx>,
_block: BasicBlock,
_return_places: CallReturnPlaces<'_, 'tcx>
)
fn call_return_effect( &mut self, _trans: &mut impl GenKill<Self::Idx>, _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
.source§fn before_terminator_effect(
&mut self,
_trans: &mut impl GenKill<Self::Idx>,
_terminator: &Terminator<'tcx>,
_location: Location
)
fn before_terminator_effect( &mut self, _trans: &mut impl GenKill<Self::Idx>, _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 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<'tcx, A> CloneAnalysis for Awhere
A: Analysis<'tcx> + Copy,
impl<'tcx, A> CloneAnalysis for Awhere A: Analysis<'tcx> + Copy,
fn clone_analysis(&self) -> A
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