Function rustc_borrowck::path_utils::is_upvar_field_projection
source ยท pub(crate) fn is_upvar_field_projection<'tcx>(
tcx: TyCtxt<'tcx>,
upvars: &[&CapturedPlace<'tcx>],
place_ref: PlaceRef<'tcx>,
body: &Body<'tcx>,
) -> Option<FieldIdx>
Expand description
If place
is a field projection, and the field is being projected from a closure type,
then returns the index of the field being projected. Note that this closure will always
be self
in the current MIR, because that is the only time we directly access the fields
of a closure type.