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33 #ifndef CPLUSPLUS_PREPROCESSOR_H
34 #define CPLUSPLUS_PREPROCESSOR_H
36 #include <CPlusPlusForwardDeclarations.h>
47 class CPLUSPLUS_EXPORT StringRef
53 typedef const char *iterator;
54 typedef const char *const_iterator;
57 : _text(0), _size(0) {}
59 StringRef(const char *text, unsigned size)
60 : _text(text), _size(size) {}
62 StringRef(const char *text)
63 : _text(text), _size(std::strlen(text)) {}
65 inline const char *text() const { return _text; }
66 inline unsigned size() const { return _size; }
68 inline const_iterator begin() const { return _text; }
69 inline const_iterator end() const { return _text + _size; }
71 bool operator == (const StringRef &other) const
73 if (_size == other._size)
74 return _text == other._text || ! std::strncmp(_text, other._text, _size);
79 bool operator != (const StringRef &other) const
80 { return ! operator == (other); }
82 bool operator < (const StringRef &other) const
83 { return std::lexicographical_compare(begin(), end(), other.begin(), other.end()); }
86 class CPLUSPLUS_EXPORT Preprocessor
89 Preprocessor(std::ostream &out);
91 void operator()(const char *source, unsigned size, const StringRef ¤tFileName);
96 Macro(): isFunctionLike(false), isVariadic(false) {}
98 std::vector<StringRef> formals;
99 std::vector<Token> body;
100 bool isFunctionLike: 1;
104 void run(const char *source, unsigned size);
106 Lexer *switchLexer(Lexer *lex);
107 StringRef switchSource(const StringRef &source);
109 const Macro *resolveMacro(const StringRef &name) const;
111 StringRef asStringRef(const Token &tk) const;
113 bool isValidToken(const Token &tk) const;
115 void handlePreprocessorDirective(Token *tk);
116 void handleDefineDirective(Token *tk);
117 void skipPreprocesorDirective(Token *tk);
119 void collectActualArguments(Token *tk, std::vector<std::vector<Token> > *actuals);
120 void scanActualArgument(Token *tk, std::vector<Token> *tokens);
126 StringRef _currentFileName;
129 TokenBuffer *_tokenBuffer;
130 bool inPreprocessorDirective: 1;
131 std::map<StringRef, Macro> macros;
134 } // end of namespace CPlusPlus
136 CPLUSPLUS_EXPORT std::ostream &operator << (std::ostream &out, const CPlusPlus::StringRef &s);
138 #endif // CPLUSPLUS_PREPROCESSOR_H