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00001 /* 00002 Copyright (C) 2003 by Mat Sutcliffe <oktal@gmx.co.uk> 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Lesser General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public 00015 License along with this library; if not, write to the Free 00016 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 #ifndef __CS_CSUTIL_SYMTABLE_H__ 00020 #define __CS_CSUTIL_SYMTABLE_H__ 00021 00022 #include "csutil/scf.h" 00023 #include "csutil/ref.h" 00024 #include "csutil/strhash.h" 00025 #include "csutil/array.h" 00026 00027 class csShaderVariable; 00028 00037 class csSymbolTable 00038 { 00039 private: 00040 struct Stack 00041 { 00042 struct Symbol 00043 { 00044 csSymbolTable *Owner; 00045 csRef<csShaderVariable> Val; 00046 00047 inline Symbol (csShaderVariable *value, csSymbolTable *owner); 00048 inline Symbol (const Symbol &other); 00049 }; 00050 csArray<Symbol> Vals; 00051 csStringID Name; 00052 00053 inline Stack (csStringID id); 00054 inline Stack (csStringID id, const csArray<Symbol> &vals); 00055 inline Stack (csStringID id, csShaderVariable *value, csSymbolTable *owner); 00056 }; 00057 00058 protected: 00059 csHashMap Hash; 00060 00061 csArray<csSymbolTable*> Children; 00062 csSymbolTable *Parent; 00063 00064 void Propagate (const Stack *stack); 00065 00066 public: 00072 csSymbolTable (int size = 53) : Hash (size), Parent (0) {} 00073 00080 csSymbolTable (const csSymbolTable &other, int size = 53); 00081 00085 ~csSymbolTable (); 00086 00088 void AddChild (csSymbolTable *); 00089 00091 void AddChildren (csArray<csSymbolTable*> &); 00092 00094 csArray<csSymbolTable *> GetChildren (); 00095 00097 void SetSymbol (csStringID name, csShaderVariable *value); 00098 00100 void SetSymbols (const csArray<csStringID>&names,csArray<csShaderVariable*>&); 00101 00103 bool DeleteSymbol (csStringID name); 00104 00106 bool DeleteSymbols (const csArray<csStringID> &names); 00107 00109 csShaderVariable* GetSymbol (csStringID name); 00110 00112 csArray<csShaderVariable *> GetSymbols (const csArray<csStringID> &names); 00113 00115 csArray<csShaderVariable *> GetSymbols (); 00116 00118 bool SymbolExists (csStringID name) const; 00119 00121 bool SymbolsExist (const csArray<csStringID> &names) const; 00122 }; 00123 00124 #endif