00001 // 00002 // aegis - project change supervisor 00003 // Copyright (C) 1994, 2002, 2005-2008 Peter Miller. 00004 // 00005 // This program is free software; you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation; either version 3 of the License, or 00008 // (at your option) any later version. 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, see 00017 // <http://www.gnu.org/licenses/>. 00018 // 00019 00020 #ifndef AEGIS_AER_EXPR_CONSTANT_H 00021 #define AEGIS_AER_EXPR_CONSTANT_H 00022 00023 #include <libaegis/aer/expr.h> 00024 00029 class rpt_expr_constant: 00030 public rpt_expr 00031 { 00032 public: 00036 ~rpt_expr_constant(); 00037 00038 private: 00046 rpt_expr_constant(const rpt_value::pointer &value); 00047 00048 public: 00056 static pointer create(const rpt_value::pointer &value); 00057 00058 protected: 00059 // See base class for documentation. 00060 bool lvalue() const; 00061 00062 // See base class for documentation. 00063 const char *name() const; 00064 00065 // See base class for documentation. 00066 rpt_value::pointer evaluate() const; 00067 00068 private: 00073 rpt_value::pointer value; 00074 00078 rpt_expr_constant(); 00079 00083 rpt_expr_constant(const rpt_expr_constant &); 00084 00088 rpt_expr_constant &operator=(const rpt_expr_constant &); 00089 }; 00090 00091 #endif // AEGIS_AER_EXPR_CONSTANT_H
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