Start implementation of RFC 1216 (make ! a type)

Add `TyKind::Empty` and fix resulting build errors.
2016-05-10 00:03:59 +08:00
parent e64f68817d
commit ba7330c1cc
39 changed files with 69 additions and 17 deletions
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -373,6 +373,7 @@ pub fn noop_fold_ty<T: Folder>(t: P<Ty>, fld: &mut T) -> P<Ty> {
                    decl: fld.fold_fn_decl(decl)
                }))
            }
+            TyKind::Empty => node,
            TyKind::Tup(tys) => TyKind::Tup(tys.move_map(|ty| fld.fold_ty(ty))),
            TyKind::Paren(ty) => TyKind::Paren(fld.fold_ty(ty)),
            TyKind::Path(qself, path) => {