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phase.h
Go to the documentation of this file.00001 // $Id: phase.h,v 1.6 2003/08/07 23:14:04 pnav Exp $ 00002 // ---------------------------------------------------------------------- 00003 // 00004 // C-Breeze 00005 // C Compiler Framework 00006 // 00007 // Copyright (c) 2000 University of Texas at Austin 00008 // 00009 // Samuel Z. Guyer 00010 // Daniel A. Jimenez 00011 // Calvin Lin 00012 // 00013 // Permission is hereby granted, free of charge, to any person 00014 // obtaining a copy of this software and associated documentation 00015 // files (the "Software"), to deal in the Software without 00016 // restriction, including without limitation the rights to use, copy, 00017 // modify, merge, publish, distribute, sublicense, and/or sell copies 00018 // of the Software, and to permit persons to whom the Software is 00019 // furnished to do so, subject to the following conditions: 00020 // 00021 // The above copyright notice and this permission notice shall be 00022 // included in all copies or substantial portions of the Software. 00023 // 00024 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00025 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00026 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00027 // NONINFRINGEMENT. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT 00028 // AUSTIN BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 00029 // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 00030 // OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00031 // THE SOFTWARE. 00032 // 00033 // We acknowledge the C-to-C Translator from MIT Laboratory for 00034 // Computer Science for inspiring parts of the C-Breeze design. 00035 // 00036 // ---------------------------------------------------------------------- 00037 00038 #ifndef CBZ_PHASE_H 00039 #define CBZ_PHASE_H 00040 00041 00042 00043 // ------------------------------------------------------------ 00044 // Phase: override the run() method 00045 // ------------------------------------------------------------ 00046 00047 class Phase 00048 { 00049 public: 00050 00051 virtual void run() =0; 00052 00053 virtual void get_flags(str_list_p & arg) { }; 00054 00055 virtual void usage() { }; // do nothing by default 00056 }; 00057 00058 // ------------------------------------------------------------ 00059 // Phase Registry 00060 // ------------------------------------------------------------ 00061 00062 // -- Phase entry 00063 00064 class Phase_entry 00065 { 00066 private: 00067 00068 string _name; 00069 int _order; 00070 Phase * _phase; 00071 string _desc; 00072 00073 public: 00074 00075 Phase_entry(const char * name, Phase * phase, const char * desc) 00076 : _name(string(name)), 00077 _order(0), 00078 _phase(phase) 00079 { 00080 if ( desc ) 00081 _desc = string(desc); 00082 else 00083 _desc = "No description."; 00084 } 00085 00086 ~Phase_entry() { delete _phase; } 00087 00088 inline int order() const { return _order; } 00089 inline void order(int order) { _order = order; } 00090 00091 inline void disable() { _order = 0; } 00092 inline bool is_enabled() const { return _order != 0; } 00093 00094 inline string & name() { return _name; } 00095 inline const string & name() const { return _name; } 00096 inline void name(string & name) { _name = name; } 00097 00098 inline Phase * phase() const { return _phase; } 00099 00100 // -- Printing registered phase information 00101 inline void print() const { 00102 if (_phase) { 00103 cout << "Phase \"" << _name << "\": " << _desc << endl; 00104 _phase->usage(); // print more usage information for this phase. 00105 } 00106 } 00107 }; 00108 00109 typedef vector< Phase_entry * > phase_vec; 00110 typedef phase_vec::iterator phase_vec_p; 00111 00112 // -- Phase_entry comparator for sorting 00113 00114 class Less_phases 00115 { 00116 public: 00117 int operator()(const Phase_entry * ph1, const Phase_entry * ph2) 00118 { return ph1->order() < ph2->order(); } 00119 }; 00120 00121 class Equal_phases 00122 { 00123 private: 00124 00125 string & _name; 00126 00127 public: 00128 00129 Equal_phases(string & name) 00130 : _name(name) 00131 {} 00132 00133 bool operator()(const Phase_entry * ph) 00134 { return ph->name() == _name; } 00135 }; 00136 00137 // -- Registry class 00138 // Each use of the constructor puts a new entry into the registry. 00139 00140 class Phases 00141 { 00142 00143 private: 00144 00145 // -- The registry.. 00146 00147 static int _count; 00148 static int _cur_order; 00149 static phase_vec * _phases; 00150 00151 public: 00152 00153 // -- Constructor registers a new phase 00154 00155 Phases(const char * name, Phase * new_phase, const char * desc = NULL); 00156 00157 ~Phases(); 00158 00159 // -- Call the phases 00160 00161 static void run_all(); 00162 00163 // -- Handle command line argument 00164 00165 static bool phase_flag(str_list_p & arg); 00166 00167 // -- Set priority 00168 00169 static void next_phase(string & name); 00170 static void disable_phase(string & name); 00171 static phase_vec * phases() { return _phases; } 00172 }; 00173 00174 00175 00176 #endif // CBZ_PHASE_H