Module impls

Modules§

EverInitializedPlaces: EverInitializedPlaces tracks all initializations of locals that may have occurred upon reaching a particular point in the control flow for a function, without an intervening StorageDead.
LivenessTransferFunction
MaybeBorrowedLocals: 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.
MaybeInitializedPlaces: MaybeInitializedPlaces tracks all places that might be initialized upon reaching a particular point in the control flow for a function.
MaybeLiveLocals: A live-variable dataflow analysis.
MaybeRequiresStorage: Dataflow analysis that determines whether each local requires storage at a given location; i.e. whether its storage can go away without being observed.
MaybeStorageDead
MaybeStorageLive
MaybeTransitiveLiveLocals: Like MaybeLiveLocals (and layered on top of MaybeLiveLocals), but does not mark locals as live if they are used in a dead assignment.
MaybeUninitializedPlaces: MaybeUninitializedPlaces tracks all places that might be uninitialized upon reaching a particular point in the control flow for a function.

always_storage_live_locals: The set of locals in a MIR body that do not have StorageLive/StorageDead annotations.
borrowed_locals: The set of locals that are borrowed at some point in the MIR body.

EverInitializedPlacesDomain
MaybeUninitializedPlacesDomain: There can be many more MovePathIndex than there are locals in a MIR body. We use a mixed bitset to avoid paying too high a memory footprint.