diff options
Diffstat (limited to 'src/expl_util.sml')
| -rw-r--r-- | src/expl_util.sml | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/expl_util.sml b/src/expl_util.sml index bda602d3..e12186b0 100644 --- a/src/expl_util.sml +++ b/src/expl_util.sml @@ -325,6 +325,15 @@ fun mapfoldB {kind = fk, con = fc, exp = fe, bind} = S.map2 (mfc ctx result, fn result' => (ECase (e', pes', {disc = disc', result = result'}), loc))))) + + | ELet (x, t, e1, e2) => + S.bind2 (mfc ctx t, + fn t' => + S.bind2 (mfe ctx e1, + fn e1' => + S.map2 (mfe ctx e2, + fn e2' => + (ELet (x, t', e1', e2'), loc)))) in mfe end |