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Parser.h

Parser.h 16 KB
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  1. // Copyright (c) 2008 Roberto Raggi <[email protected]>
    2. 

  2. //
    3. 

  3. // Permission is hereby granted, free of charge, to any person obtaining a copy
    4. 

  4. // of this software and associated documentation files (the "Software"), to deal
    5. 

  5. // in the Software without restriction, including without limitation the rights
    6. 

  6. // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    7. 

  7. // copies of the Software, and to permit persons to whom the Software is
    8. 

  8. // furnished to do so, subject to the following conditions:
    9. 

  9. //
    10. 

  10. // The above copyright notice and this permission notice shall be included in
    11. 

  11. // all copies or substantial portions of the Software.
    12. 

  12. //
    13. 

  13. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14. 

  14. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15. 

  15. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16. 

  16. // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17. 

  17. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18. 

  18. // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19. 

  19. // THE SOFTWARE.
    20. 

  20. 

  21. #ifndef CPLUSPLUS_PARSER_H
    22. 

  22. #define CPLUSPLUS_PARSER_H
    23. 

  23. 

  24. #include "CPlusPlusForwardDeclarations.h"
    25. 

  25. #include "ASTfwd.h"
    26. 

  26. #include "Token.h"
    27. 

  27. #include "TranslationUnit.h"
    28. 

  28. #include "MemoryPool.h"
    29. 

  29. #include <map>
    30. 

  30. 

  31. namespace CPlusPlus {
    32. 

  32. 

  33. class CPLUSPLUS_EXPORT Parser
    34. 

  34. {
    35. 

  35. public:
    36. 

  36.     Parser(TranslationUnit *translationUnit);
    37. 

  37.     ~Parser();
    38. 

  38. 

  39.     bool parseTranslationUnit(TranslationUnitAST *&node);
    40. 

  40. 

  41. public:
    42. 

  42.     bool parseExpressionList(ExpressionListAST *&node);
    43. 

  43.     bool parseAbstractCoreDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list);
    44. 

  44.     bool parseAbstractDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list);
    45. 

  45.     bool parseEmptyDeclaration(DeclarationAST *&node);
    46. 

  46.     bool parseAccessDeclaration(DeclarationAST *&node);
    47. 

  47.     bool parseQtPropertyDeclaration(DeclarationAST *&node);
    48. 

  48.     bool parseQtEnumDeclaration(DeclarationAST *&node);
    49. 

  49.     bool parseQtFlags(DeclarationAST *&node);
    50. 

  50.     bool parseQtInterfaces(DeclarationAST *&node);
    51. 

  51.     bool parseAdditiveExpression(ExpressionAST *&node);
    52. 

  52.     bool parseAndExpression(ExpressionAST *&node);
    53. 

  53.     bool parseAsmDefinition(DeclarationAST *&node);
    54. 

  54.     bool parseAsmOperandList();
    55. 

  55.     bool parseAsmOperand();
    56. 

  56.     bool parseAsmClobberList();
    57. 

  57.     bool parseAssignmentExpression(ExpressionAST *&node);
    58. 

  58.     bool parseBaseClause(BaseSpecifierListAST *&node);
    59. 

  59.     bool parseBaseSpecifier(BaseSpecifierListAST *&node);
    60. 

  60.     bool parseBlockDeclaration(DeclarationAST *&node);
    61. 

  61.     bool parseCppCastExpression(ExpressionAST *&node);
    62. 

  62.     bool parseCastExpression(ExpressionAST *&node);
    63. 

  63.     bool parseClassSpecifier(SpecifierListAST *&node);
    64. 

  64.     bool parseCommaExpression(ExpressionAST *&node);
    65. 

  65.     bool parseCompoundStatement(StatementAST *&node);
    66. 

  66.     bool parseBreakStatement(StatementAST *&node);
    67. 

  67.     bool parseContinueStatement(StatementAST *&node);
    68. 

  68.     bool parseGotoStatement(StatementAST *&node);
    69. 

  69.     bool parseReturnStatement(StatementAST *&node);
    70. 

  70.     bool parseCondition(ExpressionAST *&node);
    71. 

  71.     bool parseConditionalExpression(ExpressionAST *&node);
    72. 

  72.     bool parseConstantExpression(ExpressionAST *&node);
    73. 

  73.     bool parseCtorInitializer(CtorInitializerAST *&node);
    74. 

  74.     bool parseCvQualifiers(SpecifierListAST *&node);
    75. 

  75.     bool parseRefQualifier(unsigned &ref_qualifier);
    76. 

  76.     bool parseOverrideFinalQualifiers(SpecifierListAST *&node);
    77. 

  77.     bool parseDeclaratorOrAbstractDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list);
    78. 

  78.     bool parseDeclaration(DeclarationAST *&node);
    79. 

  79.     bool parseSimpleDeclaration(DeclarationAST *&node, ClassSpecifierAST *declaringClass = 0);
    80. 

  80.     bool parseDeclarationStatement(StatementAST *&node);
    81. 

  81.     bool parseCoreDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list, ClassSpecifierAST *declaringClass);
    82. 

  82.     bool parseDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list, ClassSpecifierAST *declaringClass = 0);
    83. 

  83.     bool parseDeleteExpression(ExpressionAST *&node);
    84. 

  84.     bool parseDoStatement(StatementAST *&node);
    85. 

  85.     bool parseElaboratedTypeSpecifier(SpecifierListAST *&node);
    86. 

  86.     bool parseEnumSpecifier(SpecifierListAST *&node);
    87. 

  87.     bool parseEnumerator(EnumeratorListAST *&node);
    88. 

  88.     bool parseEqualityExpression(ExpressionAST *&node);
    89. 

  89.     bool parseExceptionDeclaration(ExceptionDeclarationAST *&node);
    90. 

  90.     bool parseExceptionSpecification(ExceptionSpecificationAST *&node);
    91. 

  91.     bool parseExclusiveOrExpression(ExpressionAST *&node);
    92. 

  92.     bool parseExpression(ExpressionAST *&node);
    93. 

  93.     bool parseExpressionOrDeclarationStatement(StatementAST *&node);
    94. 

  94.     bool parseExpressionStatement(StatementAST *&node);
    95. 

  95.     bool parseForInitStatement(StatementAST *&node);
    96. 

  96.     bool parseForeachStatement(StatementAST *&node);
    97. 

  97.     bool parseForStatement(StatementAST *&node);
    98. 

  98.     bool parseFunctionBody(StatementAST *&node);
    99. 

  99.     bool parseIfStatement(StatementAST *&node);
    100. 

  100.     bool parseInclusiveOrExpression(ExpressionAST *&node);
    101. 

  101.     bool parseInitDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list, ClassSpecifierAST *declaringClass);
    102. 

  102.     bool parseInitializerList(ExpressionListAST *&node);
    103. 

  103.     bool parseInitializer(ExpressionAST *&node, unsigned *equals_token);
    104. 

  104.     bool parseInitializerClause(ExpressionAST *&node);
    105. 

  105.     bool parseLabeledStatement(StatementAST *&node);
    106. 

  106.     bool parseLinkageBody(DeclarationAST *&node);
    107. 

  107.     bool parseLinkageSpecification(DeclarationAST *&node);
    108. 

  108.     bool parseLogicalAndExpression(ExpressionAST *&node);
    109. 

  109.     bool parseLogicalOrExpression(ExpressionAST *&node);
    110. 

  110.     bool parseMemInitializer(MemInitializerListAST *&node);
    111. 

  111.     bool parseMemInitializerList(MemInitializerListAST *&node);
    112. 

  112.     bool parseMemberSpecification(DeclarationAST *&node, ClassSpecifierAST *declaringClass);
    113. 

  113.     bool parseMultiplicativeExpression(ExpressionAST *&node);
    114. 

  114.     bool parseTemplateId(NameAST *&node, unsigned template_token = 0);
    115. 

  115.     bool parseClassOrNamespaceName(NameAST *&node);
    116. 

  116.     bool parseNameId(NameAST *&node);
    117. 

  117.     bool parseName(NameAST *&node, bool acceptTemplateId = true);
    118. 

  118.     bool parseNestedNameSpecifier(NestedNameSpecifierListAST *&node, bool acceptTemplateId);
    119. 

  119.     bool parseNestedNameSpecifierOpt(NestedNameSpecifierListAST *&name, bool acceptTemplateId);
    120. 

  120.     bool parseStaticAssertDeclaration(DeclarationAST *&node);
    121. 

  121.     bool parseNamespace(DeclarationAST *&node);
    122. 

  122.     bool parseNamespaceAliasDefinition(DeclarationAST *&node);
    123. 

  123.     bool parseNewArrayDeclarator(NewArrayDeclaratorListAST *&node);
    124. 

  124.     bool parseNewExpression(ExpressionAST *&node);
    125. 

  125.     bool parseExpressionListParen(ExpressionAST *&node);
    126. 

  126.     bool parseNewInitializer(ExpressionAST *&node);
    127. 

  127.     bool parseNewTypeId(NewTypeIdAST *&node);
    128. 

  128.     bool parseOperator(OperatorAST *&node);
    129. 

  129.     bool parseConversionFunctionId(NameAST *&node);
    130. 

  130.     bool parseOperatorFunctionId(NameAST *&node);
    131. 

  131.     bool parseParameterDeclaration(ParameterDeclarationAST *&node);
    132. 

  132.     bool parseParameterDeclarationClause(ParameterDeclarationClauseAST *&node);
    133. 

  133.     bool parseParameterDeclarationList(ParameterDeclarationListAST *&node);
    134. 

  134.     bool parsePmExpression(ExpressionAST *&node);
    135. 

  135.     bool parseTypeidExpression(ExpressionAST *&node);
    136. 

  136.     bool parseTypenameCallExpression(ExpressionAST *&node);
    137. 

  137.     bool parseCorePostfixExpression(ExpressionAST *&node);
    138. 

  138.     bool parsePostfixExpression(ExpressionAST *&node);
    139. 

  139.     bool parsePostfixExpressionInternal(ExpressionAST *&node);
    140. 

  140.     bool parsePrimaryExpression(ExpressionAST *&node);
    141. 

  141.     bool parseNestedExpression(ExpressionAST *&node);
    142. 

  142.     bool parsePtrOperator(PtrOperatorListAST *&node);
    143. 

  143.     bool parseRelationalExpression(ExpressionAST *&node);
    144. 

  144.     bool parseShiftExpression(ExpressionAST *&node);
    145. 

  145.     bool parseStatement(StatementAST *&node, bool blockLabeledStatement = false);
    146. 

  146.     bool parseThisExpression(ExpressionAST *&node);
    147. 

  147.     bool parseBoolLiteral(ExpressionAST *&node);
    148. 

  148.     bool parseNumericLiteral(ExpressionAST *&node);
    149. 

  149.     bool parsePointerLiteral(ExpressionAST *&node);
    150. 

  150.     bool parseStringLiteral(ExpressionAST *&node);
    151. 

  151.     bool parseSwitchStatement(StatementAST *&node);
    152. 

  152.     bool parseTemplateArgument(ExpressionAST *&node);
    153. 

  153.     bool parseTemplateArgumentList(ExpressionListAST *&node);
    154. 

  154.     bool parseTemplateDeclaration(DeclarationAST *&node);
    155. 

  155.     bool parseTemplateParameter(DeclarationAST *&node);
    156. 

  156.     bool parseTemplateParameterList(DeclarationListAST *&node);
    157. 

  157.     bool parseThrowExpression(ExpressionAST *&node);
    158. 

  158.     bool parseTryBlockStatement(StatementAST *&node, CtorInitializerAST **placeholder);
    159. 

  159.     bool parseCatchClause(CatchClauseListAST *&node);
    160. 

  160.     bool parseTypeId(ExpressionAST *&node);
    161. 

  161.     bool parseTypeIdList(ExpressionListAST *&node);
    162. 

  162.     bool parseTypenameTypeParameter(DeclarationAST *&node);
    163. 

  163.     bool parseTemplateTypeParameter(DeclarationAST *&node);
    164. 

  164.     bool parseTypeParameter(DeclarationAST *&node);
    165. 

  165. 

  166.     bool parseBuiltinTypeSpecifier(SpecifierListAST *&node);
    167. 

  167.     bool parseOptionalAttributeSpecifierSequence(SpecifierListAST *&attribute_list);
    168. 

  168.     bool parseAttributeSpecifier(SpecifierListAST *&attribute_list);
    169. 

  169.     bool parseGnuAttributeSpecifier(SpecifierListAST *&node);
    170. 

  170.     bool parseGnuAttributeList(GnuAttributeListAST *&node);
    171. 

  171. 

  172.     bool parseDeclSpecifierSeq(SpecifierListAST *&node,
    173. 

  173.                                bool noStorageSpecifiers = false,
    174. 

  174.                                bool onlySimpleTypeSpecifiers = false);
    175. 

  175. 

  176.     bool parseTrailingTypeSpecifierSeq(SpecifierListAST *&node)
    177. 

  177.     { return parseDeclSpecifierSeq(node, true); }
    178. 

  178.     /// This actually parses a trailing-type-specifier sequence
    179. 

  179.     bool parseTypeSpecifier(SpecifierListAST *&node)
    180. 

  180.     { return parseTrailingTypeSpecifierSeq(node); }
    181. 

  181.     bool parseSimpleTypeSpecifier(SpecifierListAST *&node)
    182. 

  182.     { return parseDeclSpecifierSeq(node, true, true); }
    183. 

  183. 

  184.     bool parseUnaryExpression(ExpressionAST *&node);
    185. 

  185.     bool parseUnqualifiedName(NameAST *&node, bool acceptTemplateId = true);
    186. 

  186.     bool parseUsing(DeclarationAST *&node);
    187. 

  187.     bool parseUsingDirective(DeclarationAST *&node);
    188. 

  188.     bool parseAliasDeclaration(DeclarationAST *&node);
    189. 

  189.     bool parseWhileStatement(StatementAST *&node);
    190. 

  190. 

  191.     void parseExpressionWithOperatorPrecedence(ExpressionAST *&lhs, int minPrecedence);
    192. 

  192. 

  193.     // Qt MOC run
    194. 

  194.     bool parseQtMethod(ExpressionAST *&node);
    195. 

  195. 

  196.     // C++0x
    197. 

  197.     bool parseInitializer0x(ExpressionAST *&node, unsigned *equals_token);
    198. 

  198.     bool parseBraceOrEqualInitializer0x(ExpressionAST *&node);
    199. 

  199.     bool parseInitializerClause0x(ExpressionAST *&node);
    200. 

  200.     bool parseInitializerList0x(ExpressionListAST *&node);
    201. 

  201.     bool parseBracedInitList0x(ExpressionAST *&node);
    202. 

  202. 

  203.     bool parseLambdaExpression(ExpressionAST *&node);
    204. 

  204.     bool parseLambdaIntroducer(LambdaIntroducerAST *&node);
    205. 

  205.     bool parseLambdaCapture(LambdaCaptureAST *&node);
    206. 

  206.     bool parseLambdaDeclarator(LambdaDeclaratorAST *&node);
    207. 

  207.     bool parseCapture(CaptureAST *&node);
    208. 

  208.     bool parseCaptureList(CaptureListAST *&node);
    209. 

  209.     bool parseTrailingReturnType(TrailingReturnTypeAST *&node);
    210. 

  210. 

  211.     // ObjC++
    212. 

  212.     bool parseObjCExpression(ExpressionAST *&node);
    213. 

  213.     bool parseObjCClassForwardDeclaration(DeclarationAST *&node);
    214. 

  214.     bool parseObjCInterface(DeclarationAST *&node,
    215. 

  215.                             SpecifierListAST *attributes = 0);
    216. 

  216.     bool parseObjCProtocol(DeclarationAST *&node,
    217. 

  217.                            SpecifierListAST *attributes = 0);
    218. 

  218. 

  219.     bool parseObjCTryStatement(StatementAST *&node);
    220. 

  220.     bool parseObjCSynchronizedStatement(StatementAST *&node);
    221. 

  221.     bool parseObjCThrowStatement(StatementAST *&node);
    222. 

  222.     bool parseObjCEncodeExpression(ExpressionAST *&node);
    223. 

  223.     bool parseObjCProtocolExpression(ExpressionAST *&node);
    224. 

  224.     bool parseObjCSelectorExpression(ExpressionAST *&node);
    225. 

  225.     bool parseObjCStringLiteral(ExpressionAST *&node);
    226. 

  226.     bool parseObjCMessageExpression(ExpressionAST *&node);
    227. 

  227.     bool parseObjCMessageReceiver(ExpressionAST *&node);
    228. 

  228.     bool parseObjCMessageArguments(ObjCSelectorAST *&selNode, ObjCMessageArgumentListAST *& argNode);
    229. 

  229.     bool parseObjCSelectorArg(ObjCSelectorArgumentAST *&selNode, ObjCMessageArgumentAST *&argNode);
    230. 

  230.     bool parseObjCMethodDefinitionList(DeclarationListAST *&node);
    231. 

  231.     bool parseObjCMethodDefinition(DeclarationAST *&node);
    232. 

  232. 

  233.     bool parseObjCProtocolRefs(ObjCProtocolRefsAST *&node);
    234. 

  234.     bool parseObjClassInstanceVariables(ObjCInstanceVariablesDeclarationAST *&node);
    235. 

  235.     bool parseObjCInterfaceMemberDeclaration(DeclarationAST *&node);
    236. 

  236.     bool parseObjCInstanceVariableDeclaration(DeclarationAST *&node);
    237. 

  237.     bool parseObjCPropertyDeclaration(DeclarationAST *&node,
    238. 

  238.                                       SpecifierListAST *attributes = 0);
    239. 

  239.     bool parseObjCImplementation(DeclarationAST *&node);
    240. 

  240.     bool parseObjCMethodPrototype(ObjCMethodPrototypeAST *&node);
    241. 

  241.     bool parseObjCPropertyAttribute(ObjCPropertyAttributeAST *&node);
    242. 

  242.     bool parseObjCTypeName(ObjCTypeNameAST *&node);
    243. 

  243.     bool parseObjCSelector(unsigned &selector_token);
    244. 

  244.     bool parseObjCKeywordDeclaration(ObjCSelectorArgumentAST *&argument, ObjCMessageArgumentDeclarationAST *&node);
    245. 

  245.     bool parseObjCTypeQualifiers(unsigned &type_qualifier);
    246. 

  246.     bool peekAtObjCContextKeyword(int kind);
    247. 

  247.     bool parseObjCContextKeyword(int kind, unsigned &in_token);
    248. 

  248. 

  249.     bool lookAtObjCSelector() const;
    250. 

  250. 

  251.     // c99
    252. 

  252.     bool parseDesignatedInitializerList(ExpressionListAST *&node);
    253. 

  253.     bool parseDesignatedInitializer(ExpressionAST *&node);
    254. 

  254.     bool parseDesignator(DesignatorAST *&node);
    255. 

  255. 

  256.     bool skipUntil(int token);
    257. 

  257.     void skipUntilDeclaration();
    258. 

  258.     bool skipUntilStatement();
    259. 

  259.     bool skip(int l, int r);
    260. 

  260.     int find(int token, int stopAt);
    261. 

  261. 

  262.     bool lookAtTypeParameter();
    263. 

  263.     bool lookAtCVQualifier() const;
    264. 

  264.     bool lookAtFunctionSpecifier() const;
    265. 

  265.     bool lookAtStorageClassSpecifier() const;
    266. 

  266.     bool lookAtBuiltinTypeSpecifier() const;
    267. 

  267.     bool lookAtClassKey() const;
    268. 

  268. 

  269.     const Identifier *className(ClassSpecifierAST *ast) const;
    270. 

  270.     const Identifier *identifier(NameAST *name) const;
    271. 

  271. 

  272.     void match(int kind, unsigned *token);
    273. 

  273. 

  274.     bool maybeAmbiguousStatement(DeclarationStatementAST *ast, StatementAST *&node);
    275. 

  275.     bool maybeForwardOrClassDeclaration(SpecifierListAST *decl_specifier_seq) const;
    276. 

  276. 

  277.     int peekAtQtContextKeyword() const;
    278. 

  278. 

  279.     bool switchTemplateArguments(bool templateArguments);
    280. 

  280.     bool maybeSplitGreaterGreaterToken(int n = 1);
    281. 

  281. 

  282.     bool blockErrors(bool block) { return _translationUnit->blockErrors(block); }
    283. 

  283.     void warning(unsigned index, const char *format, ...);
    284. 

  284.     void error(unsigned index, const char *format, ...);
    285. 

  285.     void fatal(unsigned index, const char *format, ...);
    286. 

  286. 

  287.     inline const Token &tok(int i = 1) const
    288. 

  288.     { return _translationUnit->tokenAt(_tokenIndex + i - 1); }
    289. 

  289. 

  290.     inline int LA(int n = 1) const
    291. 

  291.     { return _translationUnit->tokenKind(_tokenIndex + n - 1); }
    292. 

  292. 

  293.     inline int consumeToken()
    294. 

  294.     { return _tokenIndex++; }
    295. 

  295. 

  296.     inline unsigned cursor() const
    297. 

  297.     { return _tokenIndex; }
    298. 

  298. 

  299.     void rewind(unsigned cursor);
    300. 

  300. 

  301.     struct TemplateArgumentListEntry {
    302. 

  302.         unsigned index;
    303. 

  303.         unsigned cursor;
    304. 

  304.         ExpressionListAST *ast;
    305. 

  305. 

  306.         TemplateArgumentListEntry(unsigned index = 0, unsigned cursor = 0, ExpressionListAST *ast = 0)
    307. 

  307.             : index(index), cursor(cursor), ast(ast) {}
    308. 

  308.     };
    309. 

  309. 

  310.     TemplateArgumentListEntry *templateArgumentListEntry(unsigned tokenIndex);
    311. 

  311.     void clearTemplateArgumentList() { _templateArgumentList.clear(); }
    312. 

  312. 

  313. private:
    314. 

  314.     TranslationUnit *_translationUnit;
    315. 

  315.     Control *_control;
    316. 

  316.     MemoryPool *_pool;
    317. 

  317.     LanguageFeatures _languageFeatures;
    318. 

  318.     unsigned _tokenIndex;
    319. 

  319.     bool _templateArguments: 1;
    320. 

  320.     bool _inFunctionBody: 1;
    321. 

  321.     bool _inExpressionStatement: 1;
    322. 

  322.     int _expressionDepth;
    323. 

  323.     int _statementDepth;
    324. 

  324. 

  325.     MemoryPool _expressionStatementTempPool;
    326. 

  326.     std::map<unsigned, TemplateArgumentListEntry> _templateArgumentList;
    327. 

  327. 

  328.     class ASTCache;
    329. 

  329.     ASTCache *_astCache;
    330. 

  330.     ASTCache *_expressionStatementAstCache;
    331. 

  331. 

  332. private:
    333. 

  333.     Parser(const Parser& source);
    334. 

  334.     void operator =(const Parser& source);
    335. 

  335. };
    336. 

  336. 

  337. } // namespace CPlusPlus
    338. 

  338. 

  339. 

  340. #endif // CPLUSPLUS_PARSER_H
    341.