Reduce object allocation

mrbgems/mruby-proc-ext/src/proc.c

@@ -110,7 +110,7 @@ mrb_proc_parameters(mrb_state *mrb, mrb_value self)
   const struct RProc *proc = mrb_proc_ptr(self);
   const struct mrb_irep *irep = proc->body.irep;
   mrb_aspec aspec;
-  mrb_value parameters;
+  mrb_value sname, parameters;
   int i, j;
 
   if (MRB_PROC_CFUNC_P(proc)) {
@@ -142,7 +142,8 @@ mrb_proc_parameters(mrb_state *mrb, mrb_value self)
   parameters = mrb_ary_new_capa(mrb, irep->nlocals-1);
 
   for (i = 0, p = parameters_list; p->name; p++) {
-    mrb_value sname = mrb_symbol_value(mrb_intern_cstr(mrb, p->name));
+    if (p->size <= 0) continue;
+    sname = mrb_symbol_value(mrb_intern_cstr(mrb, p->name));
     for (j = 0; j < p->size; i++, j++) {
       mrb_value a = mrb_ary_new(mrb);
       mrb_ary_push(mrb, a, sname);