set_function_type(ufunc_T *ufunc)
{
    int varargs = ufunc->uf_va_name != NULL;
    int argcount = ufunc->uf_args.ga_len;

    // Create a type for the function, with the return type and any
    // argument types.
    // A vararg is included in uf_args.ga_len but not in uf_arg_types.
    // The type is included in "tt_args".
    if (argcount > 0 || varargs)
    {
	if (ufunc->uf_type_list.ga_itemsize == 0)
	    ga_init2(&ufunc->uf_type_list, sizeof(type_T *), 10);
	ufunc->uf_func_type = alloc_func_type(ufunc->uf_ret_type,
					   argcount, &ufunc->uf_type_list);
	// Add argument types to the function type.
	if (func_type_add_arg_types(ufunc->uf_func_type,
				    argcount + varargs,
				    &ufunc->uf_type_list) == FAIL)
	    return;
	ufunc->uf_func_type->tt_argcount = argcount + varargs;
	ufunc->uf_func_type->tt_min_argcount =
				      argcount - ufunc->uf_def_args.ga_len;
	if (ufunc->uf_arg_types == NULL)
	{
	    int i;

	    // lambda does not have argument types.
	    for (i = 0; i < argcount; ++i)
		ufunc->uf_func_type->tt_args[i] = &t_any;
	}
	else
	    mch_memmove(ufunc->uf_func_type->tt_args,
			 ufunc->uf_arg_types, sizeof(type_T *) * argcount);
	if (varargs)
	{
	    ufunc->uf_func_type->tt_args[argcount] =
		   ufunc->uf_va_type == NULL ? &t_list_any : ufunc->uf_va_type;
	    ufunc->uf_func_type->tt_flags = TTFLAG_VARARGS;
	}
    }
    else
	// No arguments, can use a predefined type.
	ufunc->uf_func_type = get_func_type(ufunc->uf_ret_type,
					   argcount, &ufunc->uf_type_list);
}
set_function_type(ufunc_T *ufunc)
{
    int varargs = ufunc->uf_va_name != NULL;
    int argcount = ufunc->uf_args.ga_len;

     
     
     
     
    if (argcount > 0 || varargs)
    {
	if (ufunc->uf_type_list.ga_itemsize == 0)
	    ga_init2(&ufunc->uf_type_list, sizeof(type_T *), 10);
	ufunc->uf_func_type = alloc_func_type(ufunc->uf_ret_type,
					   argcount, &ufunc->uf_type_list);
	 
	if (func_type_add_arg_types(ufunc->uf_func_type,
				    argcount + varargs,
				    &ufunc->uf_type_list) == FAIL)
	    return;
	ufunc->uf_func_type->tt_argcount = argcount + varargs;
	ufunc->uf_func_type->tt_min_argcount =
				      argcount - ufunc->uf_def_args.ga_len;
	if (ufunc->uf_arg_types == NULL)
	{
	    int i;

	     
	    for (i = 0; i < argcount; ++i)
		ufunc->uf_func_type->tt_args[i] = &t_any;
	}
	else
	    mch_memmove(ufunc->uf_func_type->tt_args,
			 ufunc->uf_arg_types, sizeof(type_T *) * argcount);
	if (varargs)
	{
	    ufunc->uf_func_type->tt_args[argcount] =
		   ufunc->uf_va_type == NULL ? &t_list_any : ufunc->uf_va_type;
	    ufunc->uf_func_type->tt_flags = TTFLAG_VARARGS;
	}
    }
    else
	 
	ufunc->uf_func_type = get_func_type(ufunc->uf_ret_type,
					   argcount, &ufunc->uf_type_list);
}