diff options
Diffstat (limited to 'src/core_env.sml')
| -rw-r--r-- | src/core_env.sml | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/core_env.sml b/src/core_env.sml index 2c100aa5..dd77e3fb 100644 --- a/src/core_env.sml +++ b/src/core_env.sml @@ -342,4 +342,13 @@ fun patBinds env (p, loc) = | PCon (_, _, _, SOME p) => patBinds env p | PRecord xps => foldl (fn ((_, p, _), env) => patBinds env p) env xps +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 + end |