pub fn derive_altrep_logical(input: DeriveInput) -> Result<TokenStream>Expand description
Derive macro entry point for AltrepLogical.
Auto-implements AltrepLen and AltLogicalData for a struct with a length field.
The elt() method returns self.{elt_field}.into() as Logical if
#[altrep(elt = "...")] is specified, or Logical::Na by default.
Supports #[altrep(dataptr)] for direct i32 data pointer access (logicals are
stored as i32 in R) and #[altrep(subset)] for Extract_subset.