1 // Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com> 2 // 3 // Permission is hereby granted, free of charge, to any person obtaining a copy 4 // of this software and associated documentation files (the "Software"), to deal 5 // in the Software without restriction, including without limitation the rights 6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 // copies of the Software, and to permit persons to whom the Software is 8 // furnished to do so, subject to the following conditions: 9 // 10 // The above copyright notice and this permission notice shall be included in 11 // all copies or substantial portions of the Software. 12 // 13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 // THE SOFTWARE. 20 21 #pragma once 22 23 #include "CPlusPlusForwardDeclarations.h" 24 #include "ASTfwd.h" 25 #include "Token.h" 26 #include "DiagnosticClient.h" 27 #include <cstdio> 28 #include <unordered_map> 29 #include <vector> 30 31 namespace CPlusPlus { 32 33 class CPLUSPLUS_EXPORT TranslationUnit 34 { 35 TranslationUnit(const TranslationUnit &other); 36 void operator =(const TranslationUnit &other); 37 38 public: 39 TranslationUnit(Control *control, const StringLiteral *fileId); 40 ~TranslationUnit(); 41 42 Control *control() const; 43 44 const StringLiteral *fileId() const; 45 const char *fileName() const; 46 int fileNameLength() const; 47 48 const char *firstSourceChar() const; 49 const char *lastSourceChar() const; 50 int sourceLength() const; 51 52 void setSource(const char *source, int size); 53 tokenCount()54 int tokenCount() const { return _tokens ? int(_tokens->size()) : 0; } tokenAt(int index)55 const Token &tokenAt(int index) const 56 { return _tokens && index < tokenCount() ? (*_tokens)[index] : nullToken; } 57 tokenKind(int index)58 Kind tokenKind(int index) const { return tokenAt(index).kind(); } 59 const char *spell(int index) const; 60 61 int commentCount() const; 62 const Token &commentAt(int index) const; 63 64 int matchingBrace(int index) const; 65 const Identifier *identifier(int index) const; 66 const Literal *literal(int index) const; 67 const StringLiteral *stringLiteral(int index) const; 68 const NumericLiteral *numericLiteral(int index) const; 69 70 MemoryPool *memoryPool() const; 71 AST *ast() const; 72 blockErrors()73 bool blockErrors() const { return f._blockErrors; } blockErrors(bool block)74 bool blockErrors(bool block) 75 { 76 const bool previous = f._blockErrors; 77 f._blockErrors = block; 78 return previous; 79 } 80 81 void warning(int index, const char *fmt, ...); 82 void error(int index, const char *fmt, ...); 83 void fatal(int index, const char *fmt, ...); 84 85 void message(DiagnosticClient::Level level, int index, 86 const char *format, va_list ap); 87 88 bool isTokenized() const; 89 void tokenize(); 90 91 bool skipFunctionBody() const; 92 void setSkipFunctionBody(bool skipFunctionBody); 93 94 bool isParsed() const; 95 96 enum ParseMode { 97 ParseTranlationUnit, 98 ParseDeclaration, 99 ParseExpression, 100 ParseDeclarator, 101 ParseStatement 102 }; 103 104 bool parse(ParseMode mode = ParseTranlationUnit); 105 106 void resetAST(); 107 void release(); 108 109 void getTokenStartPosition(int index, int *line, 110 int *column = nullptr, 111 const StringLiteral **fileName = nullptr) const; 112 113 void getTokenEndPosition(int index, int *line, 114 int *column = nullptr, 115 const StringLiteral **fileName = nullptr) const; 116 117 void getPosition(int utf16charOffset, 118 int *line, 119 int *column = nullptr, 120 const StringLiteral **fileName = nullptr) const; 121 122 void getTokenPosition(int index, 123 int *line, 124 int *column = nullptr, 125 const StringLiteral **fileName = nullptr) const; 126 127 void pushLineOffset(int offset); 128 void pushPreprocessorLine(int utf16charOffset, 129 int line, 130 const StringLiteral *fileName); 131 132 int findPreviousLineOffset(int tokenIndex) const; 133 134 bool maybeSplitGreaterGreaterToken(int tokenIndex); 135 languageFeatures()136 LanguageFeatures languageFeatures() const { return _languageFeatures; } setLanguageFeatures(LanguageFeatures features)137 void setLanguageFeatures(LanguageFeatures features) { _languageFeatures = features; } 138 139 private: 140 struct PPLine { 141 int utf16charOffset; 142 int line; 143 const StringLiteral *fileName; 144 145 PPLine(int utf16charOffset = 0, 146 int line = 0, 147 const StringLiteral *fileName = nullptr) utf16charOffsetPPLine148 : utf16charOffset(utf16charOffset), line(line), fileName(fileName) 149 { } 150 151 bool operator == (const PPLine &other) const 152 { return utf16charOffset == other.utf16charOffset; } 153 154 bool operator != (const PPLine &other) const 155 { return utf16charOffset != other.utf16charOffset; } 156 157 bool operator < (const PPLine &other) const 158 { return utf16charOffset < other.utf16charOffset; } 159 }; 160 161 void releaseTokensAndComments(); 162 int findLineNumber(int utf16charOffset) const; 163 int findColumnNumber(int utf16CharOffset, int lineNumber) const; 164 PPLine findPreprocessorLine(int utf16charOffset) const; 165 166 static const Token nullToken; 167 168 Control *_control; 169 const StringLiteral *_fileId; 170 const char *_firstSourceChar; 171 const char *_lastSourceChar; 172 std::vector<Token> *_tokens; 173 std::vector<Token> *_comments; 174 std::vector<int> _lineOffsets; 175 std::vector<PPLine> _ppLines; 176 typedef std::unordered_map<unsigned, std::pair<int, int> > TokenLineColumn; 177 TokenLineColumn _expandedLineColumn; 178 MemoryPool *_pool; 179 AST *_ast; 180 TranslationUnit *_previousTranslationUnit; 181 struct Flags { 182 unsigned _tokenized: 1; 183 unsigned _parsed: 1; 184 unsigned _blockErrors: 1; 185 unsigned _skipFunctionBody: 1; 186 }; 187 union { 188 unsigned _flags; 189 Flags f; 190 }; 191 LanguageFeatures _languageFeatures; 192 }; 193 194 } // namespace CPlusPlus 195