1 //===--- Registry.cpp - Matcher registry -------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===------------------------------------------------------------===// 9 /// 10 /// \file 11 /// \brief Registry map populated at static initialization time. 12 /// 13 //===------------------------------------------------------------===// 14 15 #include "clang/ASTMatchers/Dynamic/Registry.h" 16 #include "Marshallers.h" 17 #include "clang/ASTMatchers/ASTMatchers.h" 18 #include "llvm/ADT/STLExtras.h" 19 #include "llvm/ADT/StringMap.h" 20 #include "llvm/ADT/StringRef.h" 21 #include "llvm/Support/ManagedStatic.h" 22 #include <set> 23 #include <utility> 24 25 using namespace clang::ast_type_traits; 26 27 namespace clang { 28 namespace ast_matchers { 29 namespace dynamic { 30 namespace { 31 32 using internal::MatcherDescriptor; 33 34 typedef llvm::StringMap<std::unique_ptr<const MatcherDescriptor>> ConstructorMap; 35 class RegistryMaps { 36 public: 37 RegistryMaps(); 38 ~RegistryMaps(); 39 40 const ConstructorMap &constructors() const { return Constructors; } 41 42 private: 43 void registerMatcher(StringRef MatcherName, 44 std::unique_ptr<MatcherDescriptor> Callback); 45 46 ConstructorMap Constructors; 47 }; 48 49 void RegistryMaps::registerMatcher( 50 StringRef MatcherName, std::unique_ptr<MatcherDescriptor> Callback) { 51 assert(Constructors.find(MatcherName) == Constructors.end()); 52 Constructors[MatcherName] = std::move(Callback); 53 } 54 55 #define REGISTER_MATCHER(name) \ 56 registerMatcher(#name, internal::makeMatcherAutoMarshall( \ 57 ::clang::ast_matchers::name, #name)); 58 59 #define REGISTER_MATCHER_OVERLOAD(name) \ 60 registerMatcher(#name, \ 61 llvm::make_unique<internal::OverloadedMatcherDescriptor>(name##Callbacks)) 62 63 #define SPECIFIC_MATCHER_OVERLOAD(name, Id) \ 64 static_cast<::clang::ast_matchers::name##_Type##Id>( \ 65 ::clang::ast_matchers::name) 66 67 #define MATCHER_OVERLOAD_ENTRY(name, Id) \ 68 internal::makeMatcherAutoMarshall(SPECIFIC_MATCHER_OVERLOAD(name, Id), \ 69 #name) 70 71 #define REGISTER_OVERLOADED_2(name) \ 72 do { \ 73 std::unique_ptr<MatcherDescriptor> name##Callbacks[] = { \ 74 MATCHER_OVERLOAD_ENTRY(name, 0), \ 75 MATCHER_OVERLOAD_ENTRY(name, 1)}; \ 76 REGISTER_MATCHER_OVERLOAD(name); \ 77 } while (0) 78 79 /// \brief Generate a registry map with all the known matchers. 80 RegistryMaps::RegistryMaps() { 81 // TODO: Here is the list of the missing matchers, grouped by reason. 82 // 83 // Need Variant/Parser fixes: 84 // ofKind 85 // 86 // Polymorphic + argument overload: 87 // findAll 88 // 89 // Other: 90 // equalsNode 91 92 REGISTER_OVERLOADED_2(callee); 93 REGISTER_OVERLOADED_2(hasPrefix); 94 REGISTER_OVERLOADED_2(hasType); 95 REGISTER_OVERLOADED_2(isDerivedFrom); 96 REGISTER_OVERLOADED_2(isSameOrDerivedFrom); 97 REGISTER_OVERLOADED_2(loc); 98 REGISTER_OVERLOADED_2(pointsTo); 99 REGISTER_OVERLOADED_2(references); 100 REGISTER_OVERLOADED_2(thisPointerType); 101 102 std::unique_ptr<MatcherDescriptor> equalsCallbacks[] = { 103 MATCHER_OVERLOAD_ENTRY(equals, 0), 104 MATCHER_OVERLOAD_ENTRY(equals, 1), 105 MATCHER_OVERLOAD_ENTRY(equals, 2), 106 }; 107 REGISTER_MATCHER_OVERLOAD(equals); 108 109 REGISTER_MATCHER(accessSpecDecl); 110 REGISTER_MATCHER(addrLabelExpr); 111 REGISTER_MATCHER(alignOfExpr); 112 REGISTER_MATCHER(allOf); 113 REGISTER_MATCHER(anyOf); 114 REGISTER_MATCHER(anything); 115 REGISTER_MATCHER(argumentCountIs); 116 REGISTER_MATCHER(arraySubscriptExpr); 117 REGISTER_MATCHER(arrayType); 118 REGISTER_MATCHER(asmStmt); 119 REGISTER_MATCHER(asString); 120 REGISTER_MATCHER(atomicExpr); 121 REGISTER_MATCHER(atomicType); 122 REGISTER_MATCHER(autoType); 123 REGISTER_MATCHER(binaryOperator); 124 REGISTER_MATCHER(binaryConditionalOperator); 125 REGISTER_MATCHER(blockPointerType); 126 REGISTER_MATCHER(booleanType); 127 REGISTER_MATCHER(breakStmt); 128 REGISTER_MATCHER(builtinType); 129 REGISTER_MATCHER(callExpr); 130 REGISTER_MATCHER(caseStmt); 131 REGISTER_MATCHER(castExpr); 132 REGISTER_MATCHER(characterLiteral); 133 REGISTER_MATCHER(classTemplateDecl); 134 REGISTER_MATCHER(classTemplateSpecializationDecl); 135 REGISTER_MATCHER(complexType); 136 REGISTER_MATCHER(compoundLiteralExpr); 137 REGISTER_MATCHER(compoundStmt); 138 REGISTER_MATCHER(conditionalOperator); 139 REGISTER_MATCHER(constantArrayType); 140 REGISTER_MATCHER(containsDeclaration); 141 REGISTER_MATCHER(continueStmt); 142 REGISTER_MATCHER(cStyleCastExpr); 143 REGISTER_MATCHER(cudaKernelCallExpr); 144 REGISTER_MATCHER(cxxBindTemporaryExpr); 145 REGISTER_MATCHER(cxxBoolLiteral); 146 REGISTER_MATCHER(cxxCatchStmt); 147 REGISTER_MATCHER(cxxConstCastExpr); 148 REGISTER_MATCHER(cxxConstructExpr); 149 REGISTER_MATCHER(cxxConstructorDecl); 150 REGISTER_MATCHER(cxxConversionDecl); 151 REGISTER_MATCHER(cxxCtorInitializer); 152 REGISTER_MATCHER(cxxDefaultArgExpr); 153 REGISTER_MATCHER(cxxDeleteExpr); 154 REGISTER_MATCHER(cxxDestructorDecl); 155 REGISTER_MATCHER(cxxDynamicCastExpr); 156 REGISTER_MATCHER(cxxForRangeStmt); 157 REGISTER_MATCHER(cxxFunctionalCastExpr); 158 REGISTER_MATCHER(cxxMemberCallExpr); 159 REGISTER_MATCHER(cxxMethodDecl); 160 REGISTER_MATCHER(cxxNewExpr); 161 REGISTER_MATCHER(cxxNullPtrLiteralExpr); 162 REGISTER_MATCHER(cxxOperatorCallExpr); 163 REGISTER_MATCHER(cxxRecordDecl); 164 REGISTER_MATCHER(cxxReinterpretCastExpr); 165 REGISTER_MATCHER(cxxStaticCastExpr); 166 REGISTER_MATCHER(cxxStdInitializerListExpr); 167 REGISTER_MATCHER(cxxTemporaryObjectExpr); 168 REGISTER_MATCHER(cxxThisExpr); 169 REGISTER_MATCHER(cxxThrowExpr); 170 REGISTER_MATCHER(cxxTryStmt); 171 REGISTER_MATCHER(cxxUnresolvedConstructExpr); 172 REGISTER_MATCHER(decayedType); 173 REGISTER_MATCHER(decl); 174 REGISTER_MATCHER(declaratorDecl); 175 REGISTER_MATCHER(declCountIs); 176 REGISTER_MATCHER(declRefExpr); 177 REGISTER_MATCHER(declStmt); 178 REGISTER_MATCHER(defaultStmt); 179 REGISTER_MATCHER(dependentSizedArrayType); 180 REGISTER_MATCHER(designatedInitExpr); 181 REGISTER_MATCHER(designatorCountIs); 182 REGISTER_MATCHER(doStmt); 183 REGISTER_MATCHER(eachOf); 184 REGISTER_MATCHER(elaboratedType); 185 REGISTER_MATCHER(enumConstantDecl); 186 REGISTER_MATCHER(enumDecl); 187 REGISTER_MATCHER(enumType); 188 REGISTER_MATCHER(equalsBoundNode); 189 REGISTER_MATCHER(equalsIntegralValue); 190 REGISTER_MATCHER(explicitCastExpr); 191 REGISTER_MATCHER(expr); 192 REGISTER_MATCHER(exprWithCleanups); 193 REGISTER_MATCHER(fieldDecl); 194 REGISTER_MATCHER(floatLiteral); 195 REGISTER_MATCHER(forEach); 196 REGISTER_MATCHER(forEachArgumentWithParam); 197 REGISTER_MATCHER(forEachConstructorInitializer); 198 REGISTER_MATCHER(forEachDescendant); 199 REGISTER_MATCHER(forEachSwitchCase); 200 REGISTER_MATCHER(forField); 201 REGISTER_MATCHER(forFunction); 202 REGISTER_MATCHER(forStmt); 203 REGISTER_MATCHER(friendDecl); 204 REGISTER_MATCHER(functionDecl); 205 REGISTER_MATCHER(functionProtoType); 206 REGISTER_MATCHER(functionTemplateDecl); 207 REGISTER_MATCHER(functionType); 208 REGISTER_MATCHER(gnuNullExpr); 209 REGISTER_MATCHER(gotoStmt); 210 REGISTER_MATCHER(has); 211 REGISTER_MATCHER(hasAncestor); 212 REGISTER_MATCHER(hasAnyArgument); 213 REGISTER_MATCHER(hasAnyConstructorInitializer); 214 REGISTER_MATCHER(hasAnyDeclaration); 215 REGISTER_MATCHER(hasAnyName); 216 REGISTER_MATCHER(hasAnyParameter); 217 REGISTER_MATCHER(hasAnySubstatement); 218 REGISTER_MATCHER(hasAnyTemplateArgument); 219 REGISTER_MATCHER(hasAnyUsingShadowDecl); 220 REGISTER_MATCHER(hasArgument); 221 REGISTER_MATCHER(hasArgumentOfType); 222 REGISTER_MATCHER(hasAttr); 223 REGISTER_MATCHER(hasAutomaticStorageDuration); 224 REGISTER_MATCHER(hasBase); 225 REGISTER_MATCHER(hasBitWidth); 226 REGISTER_MATCHER(hasBody); 227 REGISTER_MATCHER(hasCanonicalType); 228 REGISTER_MATCHER(hasCaseConstant); 229 REGISTER_MATCHER(hasCastKind); 230 REGISTER_MATCHER(hasCondition); 231 REGISTER_MATCHER(hasConditionVariableStatement); 232 REGISTER_MATCHER(hasDecayedType); 233 REGISTER_MATCHER(hasDeclaration); 234 REGISTER_MATCHER(hasDeclContext); 235 REGISTER_MATCHER(hasDeducedType); 236 REGISTER_MATCHER(hasDescendant); 237 REGISTER_MATCHER(hasDestinationType); 238 REGISTER_MATCHER(hasDynamicExceptionSpec); 239 REGISTER_MATCHER(hasEitherOperand); 240 REGISTER_MATCHER(hasElementType); 241 REGISTER_MATCHER(hasElse); 242 REGISTER_MATCHER(hasExternalFormalLinkage); 243 REGISTER_MATCHER(hasFalseExpression); 244 REGISTER_MATCHER(hasGlobalStorage); 245 REGISTER_MATCHER(hasImplicitDestinationType); 246 REGISTER_MATCHER(hasInClassInitializer); 247 REGISTER_MATCHER(hasIncrement); 248 REGISTER_MATCHER(hasIndex); 249 REGISTER_MATCHER(hasInitializer); 250 REGISTER_MATCHER(hasKeywordSelector); 251 REGISTER_MATCHER(hasLHS); 252 REGISTER_MATCHER(hasLocalQualifiers); 253 REGISTER_MATCHER(hasLocalStorage); 254 REGISTER_MATCHER(hasLoopInit); 255 REGISTER_MATCHER(hasLoopVariable); 256 REGISTER_MATCHER(hasMethod); 257 REGISTER_MATCHER(hasName); 258 REGISTER_MATCHER(hasNullSelector); 259 REGISTER_MATCHER(hasObjectExpression); 260 REGISTER_MATCHER(hasOperatorName); 261 REGISTER_MATCHER(hasOverloadedOperatorName); 262 REGISTER_MATCHER(hasParameter); 263 REGISTER_MATCHER(hasParent); 264 REGISTER_MATCHER(hasQualifier); 265 REGISTER_MATCHER(hasRangeInit); 266 REGISTER_MATCHER(hasReceiverType); 267 REGISTER_MATCHER(hasReplacementType); 268 REGISTER_MATCHER(hasReturnValue); 269 REGISTER_MATCHER(hasRHS); 270 REGISTER_MATCHER(hasSelector); 271 REGISTER_MATCHER(hasSingleDecl); 272 REGISTER_MATCHER(hasSize); 273 REGISTER_MATCHER(hasSizeExpr); 274 REGISTER_MATCHER(hasSourceExpression); 275 REGISTER_MATCHER(hasStaticStorageDuration); 276 REGISTER_MATCHER(hasSyntacticForm); 277 REGISTER_MATCHER(hasTargetDecl); 278 REGISTER_MATCHER(hasTemplateArgument); 279 REGISTER_MATCHER(hasThen); 280 REGISTER_MATCHER(hasThreadStorageDuration); 281 REGISTER_MATCHER(hasTrueExpression); 282 REGISTER_MATCHER(hasTypeLoc); 283 REGISTER_MATCHER(hasUnaryOperand); 284 REGISTER_MATCHER(hasUnarySelector); 285 REGISTER_MATCHER(hasUnderlyingDecl); 286 REGISTER_MATCHER(hasUnqualifiedDesugaredType); 287 REGISTER_MATCHER(hasValueType); 288 REGISTER_MATCHER(ifStmt); 289 REGISTER_MATCHER(ignoringImplicit); 290 REGISTER_MATCHER(ignoringImpCasts); 291 REGISTER_MATCHER(ignoringParenCasts); 292 REGISTER_MATCHER(ignoringParenImpCasts); 293 REGISTER_MATCHER(ignoringParens); 294 REGISTER_MATCHER(implicitCastExpr); 295 REGISTER_MATCHER(implicitValueInitExpr); 296 REGISTER_MATCHER(incompleteArrayType); 297 REGISTER_MATCHER(initListExpr); 298 REGISTER_MATCHER(injectedClassNameType); 299 REGISTER_MATCHER(innerType); 300 REGISTER_MATCHER(integerLiteral); 301 REGISTER_MATCHER(isAnonymous); 302 REGISTER_MATCHER(isAnyCharacter); 303 REGISTER_MATCHER(isAnyPointer); 304 REGISTER_MATCHER(isArrow); 305 REGISTER_MATCHER(isBaseInitializer); 306 REGISTER_MATCHER(isBitField); 307 REGISTER_MATCHER(isCatchAll); 308 REGISTER_MATCHER(isClass); 309 REGISTER_MATCHER(isConst); 310 REGISTER_MATCHER(isConstexpr); 311 REGISTER_MATCHER(isConstQualified); 312 REGISTER_MATCHER(isCopyAssignmentOperator); 313 REGISTER_MATCHER(isCopyConstructor); 314 REGISTER_MATCHER(isDefaultConstructor); 315 REGISTER_MATCHER(isDefaulted); 316 REGISTER_MATCHER(isDefinition); 317 REGISTER_MATCHER(isDeleted); 318 REGISTER_MATCHER(isExceptionVariable); 319 REGISTER_MATCHER(isExplicit); 320 REGISTER_MATCHER(isExplicitTemplateSpecialization); 321 REGISTER_MATCHER(isExpr); 322 REGISTER_MATCHER(isExternC); 323 REGISTER_MATCHER(isFinal); 324 REGISTER_MATCHER(isInline); 325 REGISTER_MATCHER(isImplicit); 326 REGISTER_MATCHER(isExpansionInFileMatching); 327 REGISTER_MATCHER(isExpansionInMainFile); 328 REGISTER_MATCHER(isInstantiated); 329 REGISTER_MATCHER(isExpansionInSystemHeader); 330 REGISTER_MATCHER(isInteger); 331 REGISTER_MATCHER(isIntegral); 332 REGISTER_MATCHER(isInTemplateInstantiation); 333 REGISTER_MATCHER(isLambda); 334 REGISTER_MATCHER(isListInitialization); 335 REGISTER_MATCHER(isMemberInitializer); 336 REGISTER_MATCHER(isMoveAssignmentOperator); 337 REGISTER_MATCHER(isMoveConstructor); 338 REGISTER_MATCHER(isNoThrow); 339 REGISTER_MATCHER(isOverride); 340 REGISTER_MATCHER(isPrivate); 341 REGISTER_MATCHER(isProtected); 342 REGISTER_MATCHER(isPublic); 343 REGISTER_MATCHER(isPure); 344 REGISTER_MATCHER(isSignedInteger); 345 REGISTER_MATCHER(isStaticStorageClass); 346 REGISTER_MATCHER(isStruct); 347 REGISTER_MATCHER(isTemplateInstantiation); 348 REGISTER_MATCHER(isUnion); 349 REGISTER_MATCHER(isUnsignedInteger); 350 REGISTER_MATCHER(isVariadic); 351 REGISTER_MATCHER(isVirtual); 352 REGISTER_MATCHER(isVirtualAsWritten); 353 REGISTER_MATCHER(isVolatileQualified); 354 REGISTER_MATCHER(isWritten); 355 REGISTER_MATCHER(labelDecl); 356 REGISTER_MATCHER(labelStmt); 357 REGISTER_MATCHER(lambdaExpr); 358 REGISTER_MATCHER(linkageSpecDecl); 359 REGISTER_MATCHER(lValueReferenceType); 360 REGISTER_MATCHER(matchesName); 361 REGISTER_MATCHER(matchesSelector); 362 REGISTER_MATCHER(materializeTemporaryExpr); 363 REGISTER_MATCHER(member); 364 REGISTER_MATCHER(memberExpr); 365 REGISTER_MATCHER(memberPointerType); 366 REGISTER_MATCHER(namedDecl); 367 REGISTER_MATCHER(namespaceAliasDecl); 368 REGISTER_MATCHER(namespaceDecl); 369 REGISTER_MATCHER(namesType); 370 REGISTER_MATCHER(nestedNameSpecifier); 371 REGISTER_MATCHER(nestedNameSpecifierLoc); 372 REGISTER_MATCHER(nullPointerConstant); 373 REGISTER_MATCHER(nullStmt); 374 REGISTER_MATCHER(numSelectorArgs); 375 REGISTER_MATCHER(ofClass); 376 REGISTER_MATCHER(objcCategoryDecl); 377 REGISTER_MATCHER(objcInterfaceDecl); 378 REGISTER_MATCHER(objcIvarDecl); 379 REGISTER_MATCHER(objcMessageExpr); 380 REGISTER_MATCHER(objcMethodDecl); 381 REGISTER_MATCHER(objcObjectPointerType); 382 REGISTER_MATCHER(objcPropertyDecl); 383 REGISTER_MATCHER(objcProtocolDecl); 384 REGISTER_MATCHER(on); 385 REGISTER_MATCHER(onImplicitObjectArgument); 386 REGISTER_MATCHER(opaqueValueExpr); 387 REGISTER_MATCHER(parameterCountIs); 388 REGISTER_MATCHER(parenExpr); 389 REGISTER_MATCHER(parenListExpr); 390 REGISTER_MATCHER(parenType); 391 REGISTER_MATCHER(parmVarDecl); 392 REGISTER_MATCHER(pointee); 393 REGISTER_MATCHER(pointerType); 394 REGISTER_MATCHER(predefinedExpr); 395 REGISTER_MATCHER(qualType); 396 REGISTER_MATCHER(realFloatingPointType); 397 REGISTER_MATCHER(recordDecl); 398 REGISTER_MATCHER(recordType); 399 REGISTER_MATCHER(referenceType); 400 REGISTER_MATCHER(refersToDeclaration); 401 REGISTER_MATCHER(refersToIntegralType); 402 REGISTER_MATCHER(refersToType); 403 REGISTER_MATCHER(requiresZeroInitialization); 404 REGISTER_MATCHER(returns); 405 REGISTER_MATCHER(returnStmt); 406 REGISTER_MATCHER(rValueReferenceType); 407 REGISTER_MATCHER(sizeOfExpr); 408 REGISTER_MATCHER(specifiesNamespace); 409 REGISTER_MATCHER(specifiesType); 410 REGISTER_MATCHER(specifiesTypeLoc); 411 REGISTER_MATCHER(statementCountIs); 412 REGISTER_MATCHER(staticAssertDecl); 413 REGISTER_MATCHER(stmt); 414 REGISTER_MATCHER(stmtExpr); 415 REGISTER_MATCHER(stringLiteral); 416 REGISTER_MATCHER(substNonTypeTemplateParmExpr); 417 REGISTER_MATCHER(substTemplateTypeParmType); 418 REGISTER_MATCHER(switchCase); 419 REGISTER_MATCHER(switchStmt); 420 REGISTER_MATCHER(templateArgument); 421 REGISTER_MATCHER(templateName); 422 REGISTER_MATCHER(templateArgumentCountIs); 423 REGISTER_MATCHER(templateSpecializationType); 424 REGISTER_MATCHER(templateTypeParmDecl); 425 REGISTER_MATCHER(templateTypeParmType); 426 REGISTER_MATCHER(throughUsingDecl); 427 REGISTER_MATCHER(to); 428 REGISTER_MATCHER(translationUnitDecl); 429 REGISTER_MATCHER(type); 430 REGISTER_MATCHER(typedefDecl); 431 REGISTER_MATCHER(typedefNameDecl); 432 REGISTER_MATCHER(typedefType); 433 REGISTER_MATCHER(typeAliasDecl); 434 REGISTER_MATCHER(typeAliasTemplateDecl); 435 REGISTER_MATCHER(typeLoc); 436 REGISTER_MATCHER(unaryExprOrTypeTraitExpr); 437 REGISTER_MATCHER(unaryOperator); 438 REGISTER_MATCHER(unaryTransformType); 439 REGISTER_MATCHER(unless); 440 REGISTER_MATCHER(unresolvedLookupExpr); 441 REGISTER_MATCHER(unresolvedUsingTypenameDecl); 442 REGISTER_MATCHER(unresolvedUsingValueDecl); 443 REGISTER_MATCHER(userDefinedLiteral); 444 REGISTER_MATCHER(usingDecl); 445 REGISTER_MATCHER(usingDirectiveDecl); 446 REGISTER_MATCHER(valueDecl); 447 REGISTER_MATCHER(varDecl); 448 REGISTER_MATCHER(variableArrayType); 449 REGISTER_MATCHER(voidType); 450 REGISTER_MATCHER(whileStmt); 451 REGISTER_MATCHER(withInitializer); 452 } 453 454 RegistryMaps::~RegistryMaps() {} 455 456 static llvm::ManagedStatic<RegistryMaps> RegistryData; 457 458 } // anonymous namespace 459 460 // static 461 llvm::Optional<MatcherCtor> Registry::lookupMatcherCtor(StringRef MatcherName) { 462 auto it = RegistryData->constructors().find(MatcherName); 463 return it == RegistryData->constructors().end() 464 ? llvm::Optional<MatcherCtor>() 465 : it->second.get(); 466 } 467 468 namespace { 469 470 llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, 471 const std::set<ASTNodeKind> &KS) { 472 unsigned Count = 0; 473 for (std::set<ASTNodeKind>::const_iterator I = KS.begin(), E = KS.end(); 474 I != E; ++I) { 475 if (I != KS.begin()) 476 OS << "|"; 477 if (Count++ == 3) { 478 OS << "..."; 479 break; 480 } 481 OS << *I; 482 } 483 return OS; 484 } 485 486 } // namespace 487 488 std::vector<ArgKind> Registry::getAcceptedCompletionTypes( 489 ArrayRef<std::pair<MatcherCtor, unsigned>> Context) { 490 ASTNodeKind InitialTypes[] = { 491 ASTNodeKind::getFromNodeKind<Decl>(), 492 ASTNodeKind::getFromNodeKind<QualType>(), 493 ASTNodeKind::getFromNodeKind<Type>(), 494 ASTNodeKind::getFromNodeKind<Stmt>(), 495 ASTNodeKind::getFromNodeKind<NestedNameSpecifier>(), 496 ASTNodeKind::getFromNodeKind<NestedNameSpecifierLoc>(), 497 ASTNodeKind::getFromNodeKind<TypeLoc>()}; 498 499 // Starting with the above seed of acceptable top-level matcher types, compute 500 // the acceptable type set for the argument indicated by each context element. 501 std::set<ArgKind> TypeSet(std::begin(InitialTypes), std::end(InitialTypes)); 502 for (const auto &CtxEntry : Context) { 503 MatcherCtor Ctor = CtxEntry.first; 504 unsigned ArgNumber = CtxEntry.second; 505 std::vector<ArgKind> NextTypeSet; 506 for (const ArgKind &Kind : TypeSet) { 507 if (Kind.getArgKind() == Kind.AK_Matcher && 508 Ctor->isConvertibleTo(Kind.getMatcherKind()) && 509 (Ctor->isVariadic() || ArgNumber < Ctor->getNumArgs())) 510 Ctor->getArgKinds(Kind.getMatcherKind(), ArgNumber, NextTypeSet); 511 } 512 TypeSet.clear(); 513 TypeSet.insert(NextTypeSet.begin(), NextTypeSet.end()); 514 } 515 return std::vector<ArgKind>(TypeSet.begin(), TypeSet.end()); 516 } 517 518 std::vector<MatcherCompletion> 519 Registry::getMatcherCompletions(ArrayRef<ArgKind> AcceptedTypes) { 520 std::vector<MatcherCompletion> Completions; 521 522 // Search the registry for acceptable matchers. 523 for (const auto &M : RegistryData->constructors()) { 524 const MatcherDescriptor& Matcher = *M.getValue(); 525 StringRef Name = M.getKey(); 526 527 std::set<ASTNodeKind> RetKinds; 528 unsigned NumArgs = Matcher.isVariadic() ? 1 : Matcher.getNumArgs(); 529 bool IsPolymorphic = Matcher.isPolymorphic(); 530 std::vector<std::vector<ArgKind>> ArgsKinds(NumArgs); 531 unsigned MaxSpecificity = 0; 532 for (const ArgKind& Kind : AcceptedTypes) { 533 if (Kind.getArgKind() != Kind.AK_Matcher) 534 continue; 535 unsigned Specificity; 536 ASTNodeKind LeastDerivedKind; 537 if (Matcher.isConvertibleTo(Kind.getMatcherKind(), &Specificity, 538 &LeastDerivedKind)) { 539 if (MaxSpecificity < Specificity) 540 MaxSpecificity = Specificity; 541 RetKinds.insert(LeastDerivedKind); 542 for (unsigned Arg = 0; Arg != NumArgs; ++Arg) 543 Matcher.getArgKinds(Kind.getMatcherKind(), Arg, ArgsKinds[Arg]); 544 if (IsPolymorphic) 545 break; 546 } 547 } 548 549 if (!RetKinds.empty() && MaxSpecificity > 0) { 550 std::string Decl; 551 llvm::raw_string_ostream OS(Decl); 552 553 if (IsPolymorphic) { 554 OS << "Matcher<T> " << Name << "(Matcher<T>"; 555 } else { 556 OS << "Matcher<" << RetKinds << "> " << Name << "("; 557 for (const std::vector<ArgKind> &Arg : ArgsKinds) { 558 if (&Arg != &ArgsKinds[0]) 559 OS << ", "; 560 561 bool FirstArgKind = true; 562 std::set<ASTNodeKind> MatcherKinds; 563 // Two steps. First all non-matchers, then matchers only. 564 for (const ArgKind &AK : Arg) { 565 if (AK.getArgKind() == ArgKind::AK_Matcher) { 566 MatcherKinds.insert(AK.getMatcherKind()); 567 } else { 568 if (!FirstArgKind) OS << "|"; 569 FirstArgKind = false; 570 OS << AK.asString(); 571 } 572 } 573 if (!MatcherKinds.empty()) { 574 if (!FirstArgKind) OS << "|"; 575 OS << "Matcher<" << MatcherKinds << ">"; 576 } 577 } 578 } 579 if (Matcher.isVariadic()) 580 OS << "..."; 581 OS << ")"; 582 583 std::string TypedText = Name; 584 TypedText += "("; 585 if (ArgsKinds.empty()) 586 TypedText += ")"; 587 else if (ArgsKinds[0][0].getArgKind() == ArgKind::AK_String) 588 TypedText += "\""; 589 590 Completions.emplace_back(TypedText, OS.str(), MaxSpecificity); 591 } 592 } 593 594 return Completions; 595 } 596 597 // static 598 VariantMatcher Registry::constructMatcher(MatcherCtor Ctor, 599 SourceRange NameRange, 600 ArrayRef<ParserValue> Args, 601 Diagnostics *Error) { 602 return Ctor->create(NameRange, Args, Error); 603 } 604 605 // static 606 VariantMatcher Registry::constructBoundMatcher(MatcherCtor Ctor, 607 SourceRange NameRange, 608 StringRef BindID, 609 ArrayRef<ParserValue> Args, 610 Diagnostics *Error) { 611 VariantMatcher Out = constructMatcher(Ctor, NameRange, Args, Error); 612 if (Out.isNull()) return Out; 613 614 llvm::Optional<DynTypedMatcher> Result = Out.getSingleMatcher(); 615 if (Result.hasValue()) { 616 llvm::Optional<DynTypedMatcher> Bound = Result->tryBind(BindID); 617 if (Bound.hasValue()) { 618 return VariantMatcher::SingleMatcher(*Bound); 619 } 620 } 621 Error->addError(NameRange, Error->ET_RegistryNotBindable); 622 return VariantMatcher(); 623 } 624 625 } // namespace dynamic 626 } // namespace ast_matchers 627 } // namespace clang 628