1*1c78a5d6SAndrew Rist /**************************************************************
2cdf0e10cSrcweir  *
3*1c78a5d6SAndrew Rist  * Licensed to the Apache Software Foundation (ASF) under one
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22*1c78a5d6SAndrew Rist 
23cdf0e10cSrcweir 
24cdf0e10cSrcweir #ifndef ADC_CPP_PREPROC_HXX
25cdf0e10cSrcweir #define ADC_CPP_PREPROC_HXX
26cdf0e10cSrcweir 
27cdf0e10cSrcweir 
28cdf0e10cSrcweir 
29cdf0e10cSrcweir // USED SERVICES
30cdf0e10cSrcweir 	// BASE CLASSES
31cdf0e10cSrcweir 	// COMPONENTS
32cdf0e10cSrcweir #include <deque>
33cdf0e10cSrcweir 	// PARAMETERS
34cdf0e10cSrcweir 
35cdf0e10cSrcweir class CharacterSource;
36cdf0e10cSrcweir 
37cdf0e10cSrcweir 
38cdf0e10cSrcweir namespace cpp
39cdf0e10cSrcweir {
40cdf0e10cSrcweir 
41cdf0e10cSrcweir class Token;
42cdf0e10cSrcweir class CodeExplorer;
43cdf0e10cSrcweir class DefineDescription;
44cdf0e10cSrcweir 
45cdf0e10cSrcweir 
46cdf0e10cSrcweir class PreProcessor
47cdf0e10cSrcweir {
48cdf0e10cSrcweir   public:
49cdf0e10cSrcweir     typedef std::map< String, DefineDescription* > MacroMap;
50cdf0e10cSrcweir 
51cdf0e10cSrcweir     // LIFECYCLE
52cdf0e10cSrcweir 						PreProcessor();
53cdf0e10cSrcweir 						~PreProcessor();
54cdf0e10cSrcweir     // OPERATONS
55cdf0e10cSrcweir     void                AssignPartners(
56cdf0e10cSrcweir                             CodeExplorer &      o_rCodeExplorer,
57cdf0e10cSrcweir                             CharacterSource &   o_rCharSource,
58cdf0e10cSrcweir                             const MacroMap &    i_rCurValidDefines );
59cdf0e10cSrcweir     void                Process_Token(
60cdf0e10cSrcweir                             cpp::Token &        let_drToken );
61cdf0e10cSrcweir     void                UnblockMacro(
62cdf0e10cSrcweir                             const char *        i_sMacroName );
63cdf0e10cSrcweir   private:
64cdf0e10cSrcweir     public: // Necessary for instantiation of static variable:
65cdf0e10cSrcweir     enum E_State
66cdf0e10cSrcweir     {
67cdf0e10cSrcweir         plain = 0,
68cdf0e10cSrcweir         expect_macro_bracket_left,
69cdf0e10cSrcweir         expect_macro_param,
70cdf0e10cSrcweir         state_MAX
71cdf0e10cSrcweir     };
72cdf0e10cSrcweir     typedef void (PreProcessor::*                   F_TOKENPROC )(cpp::Token &);
73cdf0e10cSrcweir     void                On_plain( cpp::Token & );
74cdf0e10cSrcweir     void                On_expect_macro_bracket_left( cpp::Token & );
75cdf0e10cSrcweir     void                On_expect_macro_param( cpp::Token & );
76cdf0e10cSrcweir 
77cdf0e10cSrcweir     private:  // Reprivate again:
78cdf0e10cSrcweir     typedef std::deque< DYN cpp::Token * >          TokenQueue;
79cdf0e10cSrcweir     typedef StringVector                  List_MacroParams;
80cdf0e10cSrcweir 
81cdf0e10cSrcweir 
82cdf0e10cSrcweir     bool                CheckForDefine(
83cdf0e10cSrcweir                             cpp::Token &        let_drToken );
84cdf0e10cSrcweir     void                InterpretMacro();
85cdf0e10cSrcweir 
86cdf0e10cSrcweir 	// DATA
87cdf0e10cSrcweir     static F_TOKENPROC  aTokProcs[state_MAX];
88cdf0e10cSrcweir         // Referenced extern objects
89cdf0e10cSrcweir     CodeExplorer *      pCppExplorer;
90cdf0e10cSrcweir     CharacterSource *   pSourceText;
91cdf0e10cSrcweir     const MacroMap *    pCurValidDefines;
92cdf0e10cSrcweir 
93cdf0e10cSrcweir         // internal data
94cdf0e10cSrcweir     TokenQueue          aTokens;
95cdf0e10cSrcweir 
96cdf0e10cSrcweir     E_State             eState;
97cdf0e10cSrcweir 
98cdf0e10cSrcweir     DefineDescription * pCurMacro;
99cdf0e10cSrcweir     DYN Token *         dpCurMacroName;
100cdf0e10cSrcweir     List_MacroParams    aCurMacroParams;
101cdf0e10cSrcweir     csv::StreamStr      aCurParamText;
102cdf0e10cSrcweir 
103cdf0e10cSrcweir     intt                nBracketInParameterCounter;
104cdf0e10cSrcweir     StringVector        aBlockedMacroNames;
105cdf0e10cSrcweir };
106cdf0e10cSrcweir 
107cdf0e10cSrcweir 
108cdf0e10cSrcweir 
109cdf0e10cSrcweir }   // end namespace cpp
110cdf0e10cSrcweir 
111cdf0e10cSrcweir #endif
112cdf0e10cSrcweir 
113