- Lisp_Object numargs;
- Lisp_Object argvals[8];
- Lisp_Object args_left;
- register int i, maxargs;
-
- args_left = original_args;
- numargs = Flength (args_left);
-
- if (XINT (numargs) < XSUBR (fun)->min_args
- || (XSUBR (fun)->max_args >= 0
- && XSUBR (fun)->max_args < XINT (numargs)))
- xsignal2 (Qwrong_number_of_arguments, original_fun, numargs);
-
- else if (XSUBR (fun)->max_args == UNEVALLED)
- val = (XSUBR (fun)->function.aUNEVALLED) (args_left);
- else if (XSUBR (fun)->max_args == MANY)
- {
- /* Pass a vector of evaluated arguments. */
- Lisp_Object *vals;
- ptrdiff_t argnum = 0;
- USE_SAFE_ALLOCA;
-
- SAFE_ALLOCA_LISP (vals, XINT (numargs));
-
- GCPRO3 (args_left, fun, fun);
- gcpro3.var = vals;
- gcpro3.nvars = 0;
-
- while (!NILP (args_left))
- {
- vals[argnum++] = eval_sub (Fcar (args_left));
- args_left = Fcdr (args_left);
- gcpro3.nvars = argnum;
- }
-
- set_backtrace_args (specpdl_ptr - 1, vals);
- set_backtrace_nargs (specpdl_ptr - 1, XINT (numargs));
-
- val = (XSUBR (fun)->function.aMANY) (XINT (numargs), vals);
- UNGCPRO;
- SAFE_FREE ();
- }
- else
- {
- GCPRO3 (args_left, fun, fun);
- gcpro3.var = argvals;
- gcpro3.nvars = 0;
-
- maxargs = XSUBR (fun)->max_args;
- for (i = 0; i < maxargs; args_left = Fcdr (args_left))
- {
- argvals[i] = eval_sub (Fcar (args_left));
- gcpro3.nvars = ++i;
- }
-
- UNGCPRO;
-
- set_backtrace_args (specpdl_ptr - 1, argvals);
- set_backtrace_nargs (specpdl_ptr - 1, XINT (numargs));
-
- switch (i)
- {
- case 0:
- val = (XSUBR (fun)->function.a0 ());
- break;
- case 1:
- val = (XSUBR (fun)->function.a1 (argvals[0]));
- break;
- case 2:
- val = (XSUBR (fun)->function.a2 (argvals[0], argvals[1]));
- break;
- case 3:
- val = (XSUBR (fun)->function.a3
- (argvals[0], argvals[1], argvals[2]));
- break;
- case 4:
- val = (XSUBR (fun)->function.a4
- (argvals[0], argvals[1], argvals[2], argvals[3]));
- break;
- case 5:
- val = (XSUBR (fun)->function.a5
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4]));
- break;
- case 6:
- val = (XSUBR (fun)->function.a6
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4], argvals[5]));
- break;
- case 7:
- val = (XSUBR (fun)->function.a7
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4], argvals[5], argvals[6]));
- break;
-
- case 8:
- val = (XSUBR (fun)->function.a8
- (argvals[0], argvals[1], argvals[2], argvals[3],
- argvals[4], argvals[5], argvals[6], argvals[7]));
- break;
-
- default:
- /* Someone has created a subr that takes more arguments than
- is supported by this code. We need to either rewrite the
- subr to use a different argument protocol, or add more
- cases to this switch. */
- emacs_abort ();
- }
- }