Method direct_call

sql/sql_lex.cc:10559–10601

bool LEX::direct_call(THD *thd, const Qualified_ident *ident,
                      List<Item> *args)
{
  DBUG_ASSERT(ident);
  if (!ident->spvar())
    return false; // A procedure call

  /*
    ident->part(0) is a known SP variable.
    Search for a procedure method of the variable, e.g.:
      assoc_array_var.delete('key');
  */
  Item *item;
  if (!ident->spvar()->type_handler()->has_methods() ||
      ident->part(1).is_null() ||
      !ident->part(2).is_null())
  {
    /*
      E.g.:
        spvar_int.method();  -- The SP variable data type does not have methods
        spvar.step1.step2(); -- A 3-step method call of an SP variable
                                (we don't have 3-step methods yet)
    */
    thd->parse_error(ER_SYNTAX_ERROR, ident->pos().str);
    return true;
  }

  if (!(item= ident->spvar()->type_handler()->
               create_item_method_or_error(thd,
                                  Type_handler::object_method_type_t::PROCEDURE,
                                  ident->part(0), ident->part(1),
                                  args, ident->pos())))
  {
    DBUG_ASSERT(thd->is_error());
    return true;
  }
  sql_command= SQLCOM_DO;
  DBUG_ASSERT(insert_list == nullptr);
  if (!(insert_list= List<Item>::make(thd->mem_root, item)))
    return true;

  return false;
}


bool LEX::assoc_assign_start(THD *thd, Qualified_ident *ident)