fix comment that got split in two

This commit is contained in:
Niko Matsakis 2016-12-30 10:51:32 -05:00 committed by Andrew Cann
parent 9f83e962de
commit 699b25ff3a

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@ -361,14 +361,13 @@ impl<'tcx> Witness<'tcx> {
/// This determines the set of all possible constructors of a pattern matching
/// values of type `left_ty`. For vectors, this would normally be an infinite set
/// but is instead bounded by the maximum fixed length of slice patterns in
/// the column of patterns being analyzed.
///
/// This intentionally does not list ConstantValue specializations for
/// non-booleans, because we currently assume that there is always a
/// "non-standard constant" that matches. See issue #12483.
///
/// but is instead bounded by the maximum fixed length of slice patterns in
/// the column of patterns being analyzed.
///
/// We make sure to omit constructors that are statically impossible. eg for
/// Option<!> we do not include Some(_) in the returned list of constructors.
fn all_constructors<'a, 'tcx: 'a>(cx: &mut MatchCheckCtxt<'a, 'tcx>,