pub type RootVariableMinCaptureList<'tcx> = FxIndexMap<HirId, MinCaptureList<'tcx>>;
MinCaptureInformationMap; Maps a root variable to the list of
Used to track the minimum set of
Places that need to be captured to support all
Places captured by the closure starting at a given root variable.
This provides a convenient and quick way of checking if a variable being used within a closure is a capture of a local variable.
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.