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(forEachOverridden); 200 REGISTER_MATCHER(forEachSwitchCase); 201 REGISTER_MATCHER(forField); 202 REGISTER_MATCHER(forFunction); 203 REGISTER_MATCHER(forStmt); 204 REGISTER_MATCHER(friendDecl); 205 REGISTER_MATCHER(functionDecl); 206 REGISTER_MATCHER(functionProtoType); 207 REGISTER_MATCHER(functionTemplateDecl); 208 REGISTER_MATCHER(functionType); 209 REGISTER_MATCHER(gnuNullExpr); 210 REGISTER_MATCHER(gotoStmt); 211 REGISTER_MATCHER(has); 212 REGISTER_MATCHER(hasAncestor); 213 REGISTER_MATCHER(hasAnyArgument); 214 REGISTER_MATCHER(hasAnyConstructorInitializer); 215 REGISTER_MATCHER(hasAnyDeclaration); 216 REGISTER_MATCHER(hasAnyName); 217 REGISTER_MATCHER(hasAnyParameter); 218 REGISTER_MATCHER(hasAnySubstatement); 219 REGISTER_MATCHER(hasAnyTemplateArgument); 220 REGISTER_MATCHER(hasAnyUsingShadowDecl); 221 REGISTER_MATCHER(hasArgument); 222 REGISTER_MATCHER(hasArgumentOfType); 223 REGISTER_MATCHER(hasAttr); 224 REGISTER_MATCHER(hasAutomaticStorageDuration); 225 REGISTER_MATCHER(hasBase); 226 REGISTER_MATCHER(hasBitWidth); 227 REGISTER_MATCHER(hasBody); 228 REGISTER_MATCHER(hasCanonicalType); 229 REGISTER_MATCHER(hasCaseConstant); 230 REGISTER_MATCHER(hasCastKind); 231 REGISTER_MATCHER(hasCondition); 232 REGISTER_MATCHER(hasConditionVariableStatement); 233 REGISTER_MATCHER(hasDecayedType); 234 REGISTER_MATCHER(hasDeclaration); 235 REGISTER_MATCHER(hasDeclContext); 236 REGISTER_MATCHER(hasDeducedType); 237 REGISTER_MATCHER(hasDescendant); 238 REGISTER_MATCHER(hasDestinationType); 239 REGISTER_MATCHER(hasDynamicExceptionSpec); 240 REGISTER_MATCHER(hasEitherOperand); 241 REGISTER_MATCHER(hasElementType); 242 REGISTER_MATCHER(hasElse); 243 REGISTER_MATCHER(hasExternalFormalLinkage); 244 REGISTER_MATCHER(hasFalseExpression); 245 REGISTER_MATCHER(hasGlobalStorage); 246 REGISTER_MATCHER(hasImplicitDestinationType); 247 REGISTER_MATCHER(hasInClassInitializer); 248 REGISTER_MATCHER(hasIncrement); 249 REGISTER_MATCHER(hasIndex); 250 REGISTER_MATCHER(hasInitializer); 251 REGISTER_MATCHER(hasKeywordSelector); 252 REGISTER_MATCHER(hasLHS); 253 REGISTER_MATCHER(hasLocalQualifiers); 254 REGISTER_MATCHER(hasLocalStorage); 255 REGISTER_MATCHER(hasLoopInit); 256 REGISTER_MATCHER(hasLoopVariable); 257 REGISTER_MATCHER(hasMethod); 258 REGISTER_MATCHER(hasName); 259 REGISTER_MATCHER(hasNullSelector); 260 REGISTER_MATCHER(hasObjectExpression); 261 REGISTER_MATCHER(hasOperatorName); 262 REGISTER_MATCHER(hasOverloadedOperatorName); 263 REGISTER_MATCHER(hasParameter); 264 REGISTER_MATCHER(hasParent); 265 REGISTER_MATCHER(hasQualifier); 266 REGISTER_MATCHER(hasRangeInit); 267 REGISTER_MATCHER(hasReceiverType); 268 REGISTER_MATCHER(hasReplacementType); 269 REGISTER_MATCHER(hasReturnValue); 270 REGISTER_MATCHER(hasRHS); 271 REGISTER_MATCHER(hasSelector); 272 REGISTER_MATCHER(hasSingleDecl); 273 REGISTER_MATCHER(hasSize); 274 REGISTER_MATCHER(hasSizeExpr); 275 REGISTER_MATCHER(hasSourceExpression); 276 REGISTER_MATCHER(hasStaticStorageDuration); 277 REGISTER_MATCHER(hasSyntacticForm); 278 REGISTER_MATCHER(hasTargetDecl); 279 REGISTER_MATCHER(hasTemplateArgument); 280 REGISTER_MATCHER(hasThen); 281 REGISTER_MATCHER(hasThreadStorageDuration); 282 REGISTER_MATCHER(hasTrueExpression); 283 REGISTER_MATCHER(hasTypeLoc); 284 REGISTER_MATCHER(hasUnaryOperand); 285 REGISTER_MATCHER(hasUnarySelector); 286 REGISTER_MATCHER(hasUnderlyingDecl); 287 REGISTER_MATCHER(hasUnqualifiedDesugaredType); 288 REGISTER_MATCHER(hasValueType); 289 REGISTER_MATCHER(ifStmt); 290 REGISTER_MATCHER(ignoringImplicit); 291 REGISTER_MATCHER(ignoringImpCasts); 292 REGISTER_MATCHER(ignoringParenCasts); 293 REGISTER_MATCHER(ignoringParenImpCasts); 294 REGISTER_MATCHER(ignoringParens); 295 REGISTER_MATCHER(implicitCastExpr); 296 REGISTER_MATCHER(implicitValueInitExpr); 297 REGISTER_MATCHER(incompleteArrayType); 298 REGISTER_MATCHER(initListExpr); 299 REGISTER_MATCHER(injectedClassNameType); 300 REGISTER_MATCHER(innerType); 301 REGISTER_MATCHER(integerLiteral); 302 REGISTER_MATCHER(isAnonymous); 303 REGISTER_MATCHER(isAnyCharacter); 304 REGISTER_MATCHER(isAnyPointer); 305 REGISTER_MATCHER(isArrow); 306 REGISTER_MATCHER(isBaseInitializer); 307 REGISTER_MATCHER(isBitField); 308 REGISTER_MATCHER(isCatchAll); 309 REGISTER_MATCHER(isClass); 310 REGISTER_MATCHER(isConst); 311 REGISTER_MATCHER(isConstexpr); 312 REGISTER_MATCHER(isConstQualified); 313 REGISTER_MATCHER(isCopyAssignmentOperator); 314 REGISTER_MATCHER(isCopyConstructor); 315 REGISTER_MATCHER(isDefaultConstructor); 316 REGISTER_MATCHER(isDefaulted); 317 REGISTER_MATCHER(isDefinition); 318 REGISTER_MATCHER(isDeleted); 319 REGISTER_MATCHER(isExceptionVariable); 320 REGISTER_MATCHER(isExplicit); 321 REGISTER_MATCHER(isExplicitTemplateSpecialization); 322 REGISTER_MATCHER(isExpr); 323 REGISTER_MATCHER(isExternC); 324 REGISTER_MATCHER(isFinal); 325 REGISTER_MATCHER(isInline); 326 REGISTER_MATCHER(isImplicit); 327 REGISTER_MATCHER(isExpansionInFileMatching); 328 REGISTER_MATCHER(isExpansionInMainFile); 329 REGISTER_MATCHER(isInstantiated); 330 REGISTER_MATCHER(isExpansionInSystemHeader); 331 REGISTER_MATCHER(isInteger); 332 REGISTER_MATCHER(isIntegral); 333 REGISTER_MATCHER(isInTemplateInstantiation); 334 REGISTER_MATCHER(isLambda); 335 REGISTER_MATCHER(isListInitialization); 336 REGISTER_MATCHER(isMemberInitializer); 337 REGISTER_MATCHER(isMoveAssignmentOperator); 338 REGISTER_MATCHER(isMoveConstructor); 339 REGISTER_MATCHER(isNoThrow); 340 REGISTER_MATCHER(isOverride); 341 REGISTER_MATCHER(isPrivate); 342 REGISTER_MATCHER(isProtected); 343 REGISTER_MATCHER(isPublic); 344 REGISTER_MATCHER(isPure); 345 REGISTER_MATCHER(isSignedInteger); 346 REGISTER_MATCHER(isStaticStorageClass); 347 REGISTER_MATCHER(isStruct); 348 REGISTER_MATCHER(isTemplateInstantiation); 349 REGISTER_MATCHER(isUnion); 350 REGISTER_MATCHER(isUnsignedInteger); 351 REGISTER_MATCHER(isVariadic); 352 REGISTER_MATCHER(isVirtual); 353 REGISTER_MATCHER(isVirtualAsWritten); 354 REGISTER_MATCHER(isVolatileQualified); 355 REGISTER_MATCHER(isWritten); 356 REGISTER_MATCHER(labelDecl); 357 REGISTER_MATCHER(labelStmt); 358 REGISTER_MATCHER(lambdaExpr); 359 REGISTER_MATCHER(linkageSpecDecl); 360 REGISTER_MATCHER(lValueReferenceType); 361 REGISTER_MATCHER(matchesName); 362 REGISTER_MATCHER(matchesSelector); 363 REGISTER_MATCHER(materializeTemporaryExpr); 364 REGISTER_MATCHER(member); 365 REGISTER_MATCHER(memberExpr); 366 REGISTER_MATCHER(memberPointerType); 367 REGISTER_MATCHER(namedDecl); 368 REGISTER_MATCHER(namespaceAliasDecl); 369 REGISTER_MATCHER(namespaceDecl); 370 REGISTER_MATCHER(namesType); 371 REGISTER_MATCHER(nestedNameSpecifier); 372 REGISTER_MATCHER(nestedNameSpecifierLoc); 373 REGISTER_MATCHER(nullPointerConstant); 374 REGISTER_MATCHER(nullStmt); 375 REGISTER_MATCHER(numSelectorArgs); 376 REGISTER_MATCHER(ofClass); 377 REGISTER_MATCHER(objcCategoryDecl); 378 REGISTER_MATCHER(objcImplementationDecl); 379 REGISTER_MATCHER(objcInterfaceDecl); 380 REGISTER_MATCHER(objcIvarDecl); 381 REGISTER_MATCHER(objcMessageExpr); 382 REGISTER_MATCHER(objcMethodDecl); 383 REGISTER_MATCHER(objcObjectPointerType); 384 REGISTER_MATCHER(objcPropertyDecl); 385 REGISTER_MATCHER(objcProtocolDecl); 386 REGISTER_MATCHER(on); 387 REGISTER_MATCHER(onImplicitObjectArgument); 388 REGISTER_MATCHER(opaqueValueExpr); 389 REGISTER_MATCHER(parameterCountIs); 390 REGISTER_MATCHER(parenExpr); 391 REGISTER_MATCHER(parenListExpr); 392 REGISTER_MATCHER(parenType); 393 REGISTER_MATCHER(parmVarDecl); 394 REGISTER_MATCHER(pointee); 395 REGISTER_MATCHER(pointerType); 396 REGISTER_MATCHER(predefinedExpr); 397 REGISTER_MATCHER(qualType); 398 REGISTER_MATCHER(realFloatingPointType); 399 REGISTER_MATCHER(recordDecl); 400 REGISTER_MATCHER(recordType); 401 REGISTER_MATCHER(referenceType); 402 REGISTER_MATCHER(refersToDeclaration); 403 REGISTER_MATCHER(refersToIntegralType); 404 REGISTER_MATCHER(refersToType); 405 REGISTER_MATCHER(requiresZeroInitialization); 406 REGISTER_MATCHER(returns); 407 REGISTER_MATCHER(returnStmt); 408 REGISTER_MATCHER(rValueReferenceType); 409 REGISTER_MATCHER(sizeOfExpr); 410 REGISTER_MATCHER(specifiesNamespace); 411 REGISTER_MATCHER(specifiesType); 412 REGISTER_MATCHER(specifiesTypeLoc); 413 REGISTER_MATCHER(statementCountIs); 414 REGISTER_MATCHER(staticAssertDecl); 415 REGISTER_MATCHER(stmt); 416 REGISTER_MATCHER(stmtExpr); 417 REGISTER_MATCHER(stringLiteral); 418 REGISTER_MATCHER(substNonTypeTemplateParmExpr); 419 REGISTER_MATCHER(substTemplateTypeParmType); 420 REGISTER_MATCHER(switchCase); 421 REGISTER_MATCHER(switchStmt); 422 REGISTER_MATCHER(templateArgument); 423 REGISTER_MATCHER(templateName); 424 REGISTER_MATCHER(templateArgumentCountIs); 425 REGISTER_MATCHER(templateSpecializationType); 426 REGISTER_MATCHER(templateTypeParmDecl); 427 REGISTER_MATCHER(templateTypeParmType); 428 REGISTER_MATCHER(throughUsingDecl); 429 REGISTER_MATCHER(to); 430 REGISTER_MATCHER(translationUnitDecl); 431 REGISTER_MATCHER(type); 432 REGISTER_MATCHER(typedefDecl); 433 REGISTER_MATCHER(typedefNameDecl); 434 REGISTER_MATCHER(typedefType); 435 REGISTER_MATCHER(typeAliasDecl); 436 REGISTER_MATCHER(typeAliasTemplateDecl); 437 REGISTER_MATCHER(typeLoc); 438 REGISTER_MATCHER(unaryExprOrTypeTraitExpr); 439 REGISTER_MATCHER(unaryOperator); 440 REGISTER_MATCHER(unaryTransformType); 441 REGISTER_MATCHER(unless); 442 REGISTER_MATCHER(unresolvedLookupExpr); 443 REGISTER_MATCHER(unresolvedUsingTypenameDecl); 444 REGISTER_MATCHER(unresolvedUsingValueDecl); 445 REGISTER_MATCHER(userDefinedLiteral); 446 REGISTER_MATCHER(usingDecl); 447 REGISTER_MATCHER(usingDirectiveDecl); 448 REGISTER_MATCHER(valueDecl); 449 REGISTER_MATCHER(varDecl); 450 REGISTER_MATCHER(variableArrayType); 451 REGISTER_MATCHER(voidType); 452 REGISTER_MATCHER(whileStmt); 453 REGISTER_MATCHER(withInitializer); 454 } 455 456 RegistryMaps::~RegistryMaps() {} 457 458 static llvm::ManagedStatic<RegistryMaps> RegistryData; 459 460 } // anonymous namespace 461 462 // static 463 llvm::Optional<MatcherCtor> Registry::lookupMatcherCtor(StringRef MatcherName) { 464 auto it = RegistryData->constructors().find(MatcherName); 465 return it == RegistryData->constructors().end() 466 ? llvm::Optional<MatcherCtor>() 467 : it->second.get(); 468 } 469 470 namespace { 471 472 llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, 473 const std::set<ASTNodeKind> &KS) { 474 unsigned Count = 0; 475 for (std::set<ASTNodeKind>::const_iterator I = KS.begin(), E = KS.end(); 476 I != E; ++I) { 477 if (I != KS.begin()) 478 OS << "|"; 479 if (Count++ == 3) { 480 OS << "..."; 481 break; 482 } 483 OS << *I; 484 } 485 return OS; 486 } 487 488 } // namespace 489 490 std::vector<ArgKind> Registry::getAcceptedCompletionTypes( 491 ArrayRef<std::pair<MatcherCtor, unsigned>> Context) { 492 ASTNodeKind InitialTypes[] = { 493 ASTNodeKind::getFromNodeKind<Decl>(), 494 ASTNodeKind::getFromNodeKind<QualType>(), 495 ASTNodeKind::getFromNodeKind<Type>(), 496 ASTNodeKind::getFromNodeKind<Stmt>(), 497 ASTNodeKind::getFromNodeKind<NestedNameSpecifier>(), 498 ASTNodeKind::getFromNodeKind<NestedNameSpecifierLoc>(), 499 ASTNodeKind::getFromNodeKind<TypeLoc>()}; 500 501 // Starting with the above seed of acceptable top-level matcher types, compute 502 // the acceptable type set for the argument indicated by each context element. 503 std::set<ArgKind> TypeSet(std::begin(InitialTypes), std::end(InitialTypes)); 504 for (const auto &CtxEntry : Context) { 505 MatcherCtor Ctor = CtxEntry.first; 506 unsigned ArgNumber = CtxEntry.second; 507 std::vector<ArgKind> NextTypeSet; 508 for (const ArgKind &Kind : TypeSet) { 509 if (Kind.getArgKind() == Kind.AK_Matcher && 510 Ctor->isConvertibleTo(Kind.getMatcherKind()) && 511 (Ctor->isVariadic() || ArgNumber < Ctor->getNumArgs())) 512 Ctor->getArgKinds(Kind.getMatcherKind(), ArgNumber, NextTypeSet); 513 } 514 TypeSet.clear(); 515 TypeSet.insert(NextTypeSet.begin(), NextTypeSet.end()); 516 } 517 return std::vector<ArgKind>(TypeSet.begin(), TypeSet.end()); 518 } 519 520 std::vector<MatcherCompletion> 521 Registry::getMatcherCompletions(ArrayRef<ArgKind> AcceptedTypes) { 522 std::vector<MatcherCompletion> Completions; 523 524 // Search the registry for acceptable matchers. 525 for (const auto &M : RegistryData->constructors()) { 526 const MatcherDescriptor& Matcher = *M.getValue(); 527 StringRef Name = M.getKey(); 528 529 std::set<ASTNodeKind> RetKinds; 530 unsigned NumArgs = Matcher.isVariadic() ? 1 : Matcher.getNumArgs(); 531 bool IsPolymorphic = Matcher.isPolymorphic(); 532 std::vector<std::vector<ArgKind>> ArgsKinds(NumArgs); 533 unsigned MaxSpecificity = 0; 534 for (const ArgKind& Kind : AcceptedTypes) { 535 if (Kind.getArgKind() != Kind.AK_Matcher) 536 continue; 537 unsigned Specificity; 538 ASTNodeKind LeastDerivedKind; 539 if (Matcher.isConvertibleTo(Kind.getMatcherKind(), &Specificity, 540 &LeastDerivedKind)) { 541 if (MaxSpecificity < Specificity) 542 MaxSpecificity = Specificity; 543 RetKinds.insert(LeastDerivedKind); 544 for (unsigned Arg = 0; Arg != NumArgs; ++Arg) 545 Matcher.getArgKinds(Kind.getMatcherKind(), Arg, ArgsKinds[Arg]); 546 if (IsPolymorphic) 547 break; 548 } 549 } 550 551 if (!RetKinds.empty() && MaxSpecificity > 0) { 552 std::string Decl; 553 llvm::raw_string_ostream OS(Decl); 554 555 if (IsPolymorphic) { 556 OS << "Matcher<T> " << Name << "(Matcher<T>"; 557 } else { 558 OS << "Matcher<" << RetKinds << "> " << Name << "("; 559 for (const std::vector<ArgKind> &Arg : ArgsKinds) { 560 if (&Arg != &ArgsKinds[0]) 561 OS << ", "; 562 563 bool FirstArgKind = true; 564 std::set<ASTNodeKind> MatcherKinds; 565 // Two steps. First all non-matchers, then matchers only. 566 for (const ArgKind &AK : Arg) { 567 if (AK.getArgKind() == ArgKind::AK_Matcher) { 568 MatcherKinds.insert(AK.getMatcherKind()); 569 } else { 570 if (!FirstArgKind) OS << "|"; 571 FirstArgKind = false; 572 OS << AK.asString(); 573 } 574 } 575 if (!MatcherKinds.empty()) { 576 if (!FirstArgKind) OS << "|"; 577 OS << "Matcher<" << MatcherKinds << ">"; 578 } 579 } 580 } 581 if (Matcher.isVariadic()) 582 OS << "..."; 583 OS << ")"; 584 585 std::string TypedText = Name; 586 TypedText += "("; 587 if (ArgsKinds.empty()) 588 TypedText += ")"; 589 else if (ArgsKinds[0][0].getArgKind() == ArgKind::AK_String) 590 TypedText += "\""; 591 592 Completions.emplace_back(TypedText, OS.str(), MaxSpecificity); 593 } 594 } 595 596 return Completions; 597 } 598 599 // static 600 VariantMatcher Registry::constructMatcher(MatcherCtor Ctor, 601 SourceRange NameRange, 602 ArrayRef<ParserValue> Args, 603 Diagnostics *Error) { 604 return Ctor->create(NameRange, Args, Error); 605 } 606 607 // static 608 VariantMatcher Registry::constructBoundMatcher(MatcherCtor Ctor, 609 SourceRange NameRange, 610 StringRef BindID, 611 ArrayRef<ParserValue> Args, 612 Diagnostics *Error) { 613 VariantMatcher Out = constructMatcher(Ctor, NameRange, Args, Error); 614 if (Out.isNull()) return Out; 615 616 llvm::Optional<DynTypedMatcher> Result = Out.getSingleMatcher(); 617 if (Result.hasValue()) { 618 llvm::Optional<DynTypedMatcher> Bound = Result->tryBind(BindID); 619 if (Bound.hasValue()) { 620 return VariantMatcher::SingleMatcher(*Bound); 621 } 622 } 623 Error->addError(NameRange, Error->ET_RegistryNotBindable); 624 return VariantMatcher(); 625 } 626 627 } // namespace dynamic 628 } // namespace ast_matchers 629 } // namespace clang 630