Mercurial > urweb
diff src/explify.sml @ 825:7f871c03e3a1
Destructing local let, to the point where demo compiles
| author | Adam Chlipala <adamc@hcoop.net> |
|---|---|
| date | Thu, 28 May 2009 12:07:05 -0400 |
| parents | 0e554bfd6d6a |
| children | b2311dfb3158 |
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--- a/src/explify.sml Thu May 28 11:45:45 2009 -0400 +++ b/src/explify.sml Thu May 28 12:07:05 2009 -0400 @@ -123,11 +123,14 @@ | L.EUnif (ref (SOME e)) => explifyExp e | L.EUnif _ => raise Fail ("explifyExp: Undetermined EUnif at " ^ EM.spanToString loc) - | L.ELet (des, e) => + | L.ELet (des, e, t) => foldr (fn ((de, loc), e) => case de of L.EDValRec _ => raise Fail "explifyExp: Local 'val rec' remains" - | L.EDVal (x, t, e') => (L'.ELet (x, explifyCon t, explifyExp e', e), loc)) + | L.EDVal ((L.PVar (x, _), _), t', e') => (L'.ELet (x, explifyCon t', explifyExp e', e), loc) + | L.EDVal (p, t', e') => (L'.ECase (explifyExp e', + [(explifyPat p, e)], + {disc = explifyCon t', result = explifyCon t}), loc)) (explifyExp e) des | L.EKAbs (x, e) => (L'.EKAbs (x, explifyExp e), loc)