feat: optimize runtime (2x+ faster)

src/compiler/utils/fzl_symtable.c

@@ -13,6 +13,7 @@ fzl_symtable_t *fzl_mksymt()
   if (!tbl)
     return NULL;
 
+  tbl->free_slot = 0;
   tbl->remainder = 2;
   tbl->size      = 0;
   tbl->symbols   = malloc(tbl->remainder * sizeof(fzl_sym_t));
@@ -38,8 +39,13 @@ fzl_symtable_res_t fzl_symt_put(fzl_symtable_t *symt, fzl_node_t *node,
     symt->symbols = realloc(symt->symbols, symt->remainder * sizeof(fzl_sym_t));
   }
 
-  symt->symbols[symt->size++] = (fzl_sym_t){
-      .name = name, .node = node, .type = type, .ip = ip, .classname = NULL};
+  symt->symbols[symt->size++] = (fzl_sym_t){.name      = name,
+                                            .node      = node,
+                                            .type      = type,
+                                            .ip        = ip,
+                                            .classname = NULL,
+                                            .slot_set  = false,
+                                            .slot      = 0};
   return FZL_SYMTABLE_RESULT_OK;
 }
 
@@ -64,6 +70,28 @@ fzl_symtable_res_t fzl_symt_setobjclass(fzl_symtable_t *symt, char *name,
   return FZL_SYMTABLE_RESULT_ERR;
 }
 
+int fzl_symt_setslot(fzl_symtable_t *symt, char *name)
+{
+  if (!symt)
+    return -1;
+
+  for (size_t i = 0; i < symt->size; i++)
+  {
+    if (strcmp(symt->symbols[i].name, name) == 0)
+    {
+      if (symt->symbols[i].slot_set)
+        return symt->symbols[i].slot;
+
+      symt->symbols[i].slot     = symt->free_slot++;
+      symt->symbols[i].slot_set = true;
+
+      return symt->symbols[i].slot;
+    }
+  }
+
+  return -1;
+}
+
 bool fzl_symt_get(fzl_symtable_t *symt, char *name, fzl_sym_t *res)
 {
   if (!symt)