diff options
Diffstat (limited to 'src/mono_env.sml')
-rw-r--r-- | src/mono_env.sml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mono_env.sml b/src/mono_env.sml index 47ffd28d..cce4a4c4 100644 --- a/src/mono_env.sml +++ b/src/mono_env.sml @@ -122,4 +122,15 @@ fun patBinds env (p, loc) = | PNone _ => env | PSome (_, p) => patBinds env p +fun patBindsN (p, loc) = + case p of + PWild => 0 + | PVar _ => 1 + | PPrim _ => 0 + | PCon (_, _, NONE) => 0 + | PCon (_, _, SOME p) => patBindsN p + | PRecord xps => foldl (fn ((_, p, _), count) => count + patBindsN p) 0 xps + | PNone _ => 0 + | PSome (_, p) => patBindsN p + end |