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| author |  Adam Chlipala <adam@chlipala.net> | 2012-04-21 13:57:10 -0400 |
|---|---|---|
| committer | Adam Chlipala <adam@chlipala.net> | 2012-04-21 13:57:10 -0400 |
| commit | 48bcb8af10e648f4b31ddf4b46e7700eb53d229c (patch) | |
| tree | 44cf7b1e34f56820aebd71db45bd5dd28c351aeb | |
| parent | a403a8d5343719e7bfc663cfb45ca09ade0ad77d (diff) | |
Avoid kindof failures in elaboration
| -rw-r--r-- | src/elaborate.sml | 11 | ||||
| -rw-r--r-- | tests/unbound.ur | 3 |
2 files changed, 8 insertions, 6 deletions
diff --git a/src/elaborate.sml b/src/elaborate.sml index 26825951..a11787a9 100644 --- a/src/elaborate.sml +++ b/src/elaborate.sml @@ -1,4 +1,4 @@ -(* Copyright (c) 2008-2011, Adam Chlipala +(* Copyright (c) 2008-2012, Adam Chlipala * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -393,11 +393,10 @@ | SOME sgn => ((L'.StrProj (str, m), loc), sgn)) ((L'.StrVar n, loc), sgn) ms - val k = case E.projectCon env {sgn = sgn, str = str, field = s} of - NONE => (conError env (UnboundCon (loc, s)); - kerror) - | SOME (k, _) => k - val (c, k) = elabConHead env (L'.CModProj (n, ms, s), loc) k + val (c, k) = case E.projectCon env {sgn = sgn, str = str, field = s} of + NONE => (conError env (UnboundCon (loc, s)); + (cerror, kerror)) + | SOME (k, _) => elabConHead env (L'.CModProj (n, ms, s), loc) k in (c, k, []) end) diff --git a/tests/unbound.ur b/tests/unbound.ur new file mode 100644 index 00000000..3f508e5f --- /dev/null +++ b/tests/unbound.ur @@ -0,0 +1,3 @@ +structure M = struct end + +fun f (x : $M.r) : $([A = int] ++ M.r) = x |