pub struct Engine<'mir, 'tcx, A>
where A: Analysis<'tcx>,
{ tcx: TyCtxt<'tcx>, body: &'mir Body<'tcx>, entry_sets: IndexVec<BasicBlock, A::Domain>, pass_name: Option<&'static str>, analysis: A, apply_statement_trans_for_block: Option<Box<dyn Fn(BasicBlock, &mut A::Domain)>>, }
Expand description

A solver for dataflow problems.

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§tcx: TyCtxt<'tcx>§body: &'mir Body<'tcx>§entry_sets: IndexVec<BasicBlock, A::Domain>§pass_name: Option<&'static str>§analysis: A§apply_statement_trans_for_block: Option<Box<dyn Fn(BasicBlock, &mut A::Domain)>>

Cached, cumulative transfer functions for each block.

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impl<'mir, 'tcx, A, D, T> Engine<'mir, 'tcx, A>
where A: GenKillAnalysis<'tcx, Idx = T, Domain = D>, D: Clone + JoinSemiLattice + GenKill<T> + BitSetExt<T>, T: Idx,

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pub fn new_gen_kill( tcx: TyCtxt<'tcx>, body: &'mir Body<'tcx>, analysis: A ) -> Self

Creates a new Engine to solve a gen-kill dataflow problem.

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impl<'mir, 'tcx, A, D> Engine<'mir, 'tcx, A>
where A: Analysis<'tcx, Domain = D>, D: Clone + JoinSemiLattice,

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pub fn new_generic( tcx: TyCtxt<'tcx>, body: &'mir Body<'tcx>, analysis: A ) -> Self

Creates a new Engine to solve a dataflow problem with an arbitrary transfer function.

Gen-kill problems should use new_gen_kill, which will coalesce transfer functions for better performance.

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fn new( tcx: TyCtxt<'tcx>, body: &'mir Body<'tcx>, analysis: A, apply_statement_trans_for_block: Option<Box<dyn Fn(BasicBlock, &mut A::Domain)>> ) -> Self

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pub fn pass_name(self, name: &'static str) -> Self

Adds an identifier to the graphviz output for this particular run of a dataflow analysis.

Some analyses are run multiple times in the compilation pipeline. Give them a pass_name to differentiate them. Otherwise, only the results for the latest run will be saved.

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pub fn iterate_to_fixpoint(self) -> Results<'tcx, A>
where A::Domain: DebugWithContext<A>,

Computes the fixpoint for this dataflow problem and returns it.

Auto Trait Implementations§

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impl<'mir, 'tcx, A> !DynSend for Engine<'mir, 'tcx, A>

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impl<'mir, 'tcx, A> !DynSync for Engine<'mir, 'tcx, A>

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impl<'mir, 'tcx, A> Freeze for Engine<'mir, 'tcx, A>
where A: Freeze,

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impl<'mir, 'tcx, A> !RefUnwindSafe for Engine<'mir, 'tcx, A>

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impl<'mir, 'tcx, A> !Send for Engine<'mir, 'tcx, A>

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impl<'mir, 'tcx, A> !Sync for Engine<'mir, 'tcx, A>

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impl<'mir, 'tcx, A> Unpin for Engine<'mir, 'tcx, A>
where A: Unpin, <A as AnalysisDomain<'tcx>>::Domain: Unpin,

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impl<'mir, 'tcx, A> !UnwindSafe for Engine<'mir, 'tcx, A>

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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,

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.