vm: allow vm description to be callable as function.

* lib.c (generic_funall): Handle vm-desc objects via
vm_execute_toplevel.

* vm.h (vm_desc_s, vm_closure_s): Declared.

1 files changed, 4 insertions, 0 deletions

diff --git a/lib.c b/lib.c
index 980fe768..7219d2d2 100644
--- a/lib.c
+++ b/lib.c
@@ -6253,6 +6253,10 @@ val generic_funcall(val fun, struct args *args_in)
       default:
         callerror(fun, lit("too many arguments"));
       }
+    } else if (fun->co.cls == vm_desc_s) {
+      if (args->fill || args->list)
+        callerror(fun, lit("too many arguments"));
+      return vm_execute_toplevel(fun);
     } else if (fun->co.cls == carray_s) {
       goto carray;
     } else if (obj_struct_p(fun)) {