New unchecked setter for function environment.

* lib.c (us_func_set_env): New function: func_set_env without
the type check.

* lib.h (us_func_set_env): Declared.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib.c b/lib.c
index da8e0bf7..6e09308c 100644
--- a/lib.c
+++ b/lib.c
@@ -6432,6 +6432,12 @@ val func_set_env(val fun, val env)
   return env;
 }
 
+val us_func_set_env(val fun, val env)
+{
+  set(mkloc(fun->f.env, fun), env);
+  return env;
+}
+
 val functionp(val obj)
 {
   return type(obj) == FUN ? t : nil;