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| author |  Adam Chlipala <adamc@hcoop.net> | 2008-07-31 10:06:27 -0400 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2008-07-31 10:06:27 -0400 |
| commit | f4351288c5b57b130c0a75e5e84a445ca513527f (patch) | |
| tree | c0e69cdf2d843fbf3c5d2853ce2effe487090970 /src/elab_util.sml | |
| parent | aa1b3a24913edd0dc97af0d1fc9e3dc0026a2460 (diff) | |
Elaborating some basic pattern matching
Diffstat (limited to 'src/elab_util.sml')
| -rw-r--r-- | src/elab_util.sml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/elab_util.sml b/src/elab_util.sml index 05f80ad1..ac2e1a99 100644 --- a/src/elab_util.sml +++ b/src/elab_util.sml @@ -308,6 +308,17 @@ fun mapfoldB {kind = fk, con = fc, exp = fe, bind} = fn k' => (EFold k', loc)) + | ECase (e, pes, t) => + S.bind2 (mfe ctx e, + fn e' => + S.bind2 (ListUtil.mapfold (fn (p, e) => + S.map2 (mfe ctx e, + fn e' => (p, e'))) pes, + fn pes' => + S.map2 (mfc ctx t, + fn t' => + (ECase (e', pes', t'), loc)))) + | EError => S.return2 eAll in mfe |