@verb #136:":can_invoke" this none this rxdo #55
@program #136:":can_invoke" this none this
"Copied from Generic Exit (#7):can_invoke by Slacker (#55)Mar  6 12:17:55 2001"
{cp, caller, what} = args
return $perm_utils:controls(cp, what) || cp == what || caller == what || caller == what.location
.