diff options
Diffstat (limited to 'src/expl_util.sml')
| -rw-r--r-- | src/expl_util.sml | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/expl_util.sml b/src/expl_util.sml index 8c2a0f58..ebdd22d2 100644 --- a/src/expl_util.sml +++ b/src/expl_util.sml @@ -353,6 +353,19 @@ fun mapfoldB {kind, con, sgn_item, sgn, bind} = (SgnConst sgis', loc)) | SgnVar _ => S.return2 sAll + + | SgnFun (m, n, s1, s2) => + S.bind2 (sg ctx s1, + fn s1' => + S.map2 (sg (bind (ctx, Str (m, s1'))) s2, + fn s2' => + (SgnFun (m, n, s1', s2'), loc))) + | SgnWhere (sgn, x, c) => + S.bind2 (sg ctx sgn, + fn sgn' => + S.map2 (con ctx c, + fn c' => + (SgnWhere (sgn', x, c'), loc))) in sg end |