[][src]Struct rustc_mir::borrow_check::nll::type_check::liveness::trace::LivenessResults

struct LivenessResults<'me, 'typeck, 'flow, 'gcx, 'tcx> where
    'typeck: 'me,
    'flow: 'me,
    'tcx: 'typeck + 'flow,
    'gcx: 'tcx, 
{ cx: LivenessContext<'me, 'typeck, 'flow, 'gcx, 'tcx>, defs: BitArray<PointIndex>, use_live_at: BitArray<PointIndex>, drop_live_at: BitArray<PointIndex>, drop_locations: Vec<Location>, stack: Vec<PointIndex>, }
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Fields

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Set of points that define the current local.

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Points where the current variable is "use live" -- meaning that there is a future "full use" that may use its value.

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Points where the current variable is "drop live" -- meaning that there is no future "full use" that may use its value, but there is a future drop.

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Locations where drops may occur.

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Stack used when doing (reverse) DFS.

Methods

impl<'me, 'typeck, 'flow, 'gcx, 'tcx> LivenessResults<'me, 'typeck, 'flow, 'gcx, 'tcx>
[src]

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🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

🔬 This is a nightly-only experimental API. (rustc_private)

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Clear the value of fields that are "per local variable".

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Adds the definitions of local into self.defs.

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Compute all points where local is "use live" -- meaning its current value may be used later (except by a drop). This is done by walking backwards from each use of live_local until we find a def of local.

Requires add_defs_for(live_local) to have been executed.

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Compute all points where local is "drop live" -- meaning its current value may be dropped later (but not used). This is done by iterating over the drops of local where local (or some subpart of local) is initialized. For each such drop, we walk backwards until we find a point where local is either defined or use-live.

Requires compute_use_live_points_for and add_defs_for to have been executed.

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Executes one iteration of the drop-live analysis loop.

The parameter mpi is the MovePathIndex of the local variable we are currently analyzing.

The point term_point represents some terminator in the MIR, where the local mpi is drop-live on entry to that terminator.

This method adds all drop-live points within the block and -- where applicable -- pushes the terminators of preceding blocks onto self.stack.

Auto Trait Implementations

impl<'me, 'typeck, 'flow, 'gcx, 'tcx> !Send for LivenessResults<'me, 'typeck, 'flow, 'gcx, 'tcx>

impl<'me, 'typeck, 'flow, 'gcx, 'tcx> !Sync for LivenessResults<'me, 'typeck, 'flow, 'gcx, 'tcx>

Blanket Implementations

impl<T> From for T
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Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
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Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
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The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
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Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
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this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<E> SpecializationError for E
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

impl<T> Erased for T
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impl<T> Send for T where
    T: ?Sized
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impl<T> Sync for T where
    T: ?Sized
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impl<T> Erased for T

impl<T> MaybeResult for T
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🔬 This is a nightly-only experimental API. (rustc_private)

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🔬 This is a nightly-only experimental API. (rustc_private)

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impl<'a, T> Captures for T where
    T: ?Sized
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