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authorGravatar Adam Chlipala <adamc@hcoop.net>2008-06-26 09:48:54 -0400
committerGravatar Adam Chlipala <adamc@hcoop.net>2008-06-26 09:48:54 -0400
commitbef69954307005832dca731aff9a7b008c88c8d8 (patch)
tree801e896f527636ab21211f11839f3c1d20f5ac10 /src/elab_util.sml
parentb03ac1efc8ac5197688a97d1b8b27106654d504d (diff)
Elaborating cfold
Diffstat (limited to 'src/elab_util.sml')
-rw-r--r--src/elab_util.sml6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/elab_util.sml b/src/elab_util.sml
index 2d075fb4..7892211c 100644
--- a/src/elab_util.sml
+++ b/src/elab_util.sml
@@ -143,6 +143,12 @@ fun mapfoldB {kind = fk, con = fc, bind} =
S.map2 (mfc ctx c2,
fn c2' =>
(CConcat (c1', c2'), loc)))
+ | CFold (k1, k2) =>
+ S.bind2 (mfk k1,
+ fn k1' =>
+ S.map2 (mfk k2,
+ fn k2' =>
+ (CFold (k1', k2'), loc)))
| CError => S.return2 cAll
| CUnif (_, _, ref (SOME c)) => mfc' ctx c