diff options
Diffstat (limited to 'src/reduce.sml')
| -rw-r--r-- | src/reduce.sml | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/reduce.sml b/src/reduce.sml index 9cc57cb2..0250175f 100644 --- a/src/reduce.sml +++ b/src/reduce.sml @@ -130,6 +130,19 @@ fun exp env e = | _ => false) xes of SOME (_, e, _) => #1 e | NONE => e) + | EWith (r as (_, loc), x, e, {rest = (CRecord (k, xts), _), field}) => + let + fun fields (remaining, passed) = + case remaining of + [] => [] + | (x, t) :: rest => + (x, + (EField (r, x, {field = t, + rest = (CRecord (k, List.revAppend (passed, rest)), loc)}), loc), + t) :: fields (rest, (x, t) :: passed) + in + #1 (reduceExp env (ERecord ((x, e, field) :: fields (xts, [])), loc)) + end | ECut (r as (_, loc), _, {rest = (CRecord (k, xts), _), ...}) => let fun fields (remaining, passed) = |