00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*- 00002 * vim:expandtab:shiftwidth=2:tabstop=2:smarttab: 00003 * 00004 * Copyright (C) 2008 Sun Microsystems, Inc. 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; version 2 of the License. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program; if not, write to the Free Software 00017 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00018 */ 00019 00020 #pragma once 00021 00022 namespace drizzled 00023 { 00024 00025 class TableList; 00026 class Name_resolution_context; 00027 00028 /* 00029 Store and restore the current state of a name resolution context. 00030 */ 00031 00032 class Name_resolution_context_state 00033 { 00034 private: 00035 TableList *save_table_list; 00036 TableList *save_first_name_resolution_table; 00037 TableList *save_next_name_resolution_table; 00038 bool save_resolve_in_select_list; 00039 TableList *save_next_local; 00040 00041 public: 00042 00043 Name_resolution_context_state() {} /* Remove gcc warning */ 00044 00045 /* Save the state of a name resolution context. */ 00046 void save_state(Name_resolution_context *context, TableList *table_list); 00047 00048 /* Restore a name resolution context from saved state. */ 00049 void restore_state(Name_resolution_context *context, TableList *table_list); 00050 00051 TableList *get_first_name_resolution_table(); 00052 00053 }; 00054 00055 } /* namespace drizzled */ 00056