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/AST/ASTTypeTraits.h" 18 #include "clang/ASTMatchers/ASTMatchers.h" 19 #include "clang/ASTMatchers/Dynamic/Diagnostics.h" 20 #include "clang/ASTMatchers/Dynamic/VariantValue.h" 21 #include "llvm/ADT/Optional.h" 22 #include "llvm/ADT/STLExtras.h" 23 #include "llvm/ADT/StringMap.h" 24 #include "llvm/ADT/StringRef.h" 25 #include "llvm/Support/ManagedStatic.h" 26 #include "llvm/Support/raw_ostream.h" 27 #include <cassert> 28 #include <iterator> 29 #include <memory> 30 #include <set> 31 #include <string> 32 #include <utility> 33 #include <vector> 34 35 using namespace clang::ast_type_traits; 36 37 namespace clang { 38 namespace ast_matchers { 39 namespace dynamic { 40 41 namespace { 42 43 using internal::MatcherDescriptor; 44 45 using ConstructorMap = llvm::StringMap<std::unique_ptr<const MatcherDescriptor>>; 46 47 class RegistryMaps { 48 public: 49 RegistryMaps(); 50 ~RegistryMaps(); 51 52 const ConstructorMap &constructors() const { return Constructors; } 53 54 private: 55 void registerMatcher(StringRef MatcherName, 56 std::unique_ptr<MatcherDescriptor> Callback); 57 58 ConstructorMap Constructors; 59 }; 60 61 } // namespace 62 63 void RegistryMaps::registerMatcher( 64 StringRef MatcherName, std::unique_ptr<MatcherDescriptor> Callback) { 65 assert(Constructors.find(MatcherName) == Constructors.end()); 66 Constructors[MatcherName] = std::move(Callback); 67 } 68 69 #define REGISTER_MATCHER(name) \ 70 registerMatcher(#name, internal::makeMatcherAutoMarshall( \ 71 ::clang::ast_matchers::name, #name)); 72 73 #define REGISTER_MATCHER_OVERLOAD(name) \ 74 registerMatcher(#name, \ 75 llvm::make_unique<internal::OverloadedMatcherDescriptor>(name##Callbacks)) 76 77 #define SPECIFIC_MATCHER_OVERLOAD(name, Id) \ 78 static_cast<::clang::ast_matchers::name##_Type##Id>( \ 79 ::clang::ast_matchers::name) 80 81 #define MATCHER_OVERLOAD_ENTRY(name, Id) \ 82 internal::makeMatcherAutoMarshall(SPECIFIC_MATCHER_OVERLOAD(name, Id), \ 83 #name) 84 85 #define REGISTER_OVERLOADED_2(name) \ 86 do { \ 87 std::unique_ptr<MatcherDescriptor> name##Callbacks[] = { \ 88 MATCHER_OVERLOAD_ENTRY(name, 0), \ 89 MATCHER_OVERLOAD_ENTRY(name, 1)}; \ 90 REGISTER_MATCHER_OVERLOAD(name); \ 91 } while (false) 92 93 /// \brief Generate a registry map with all the known matchers. 94 RegistryMaps::RegistryMaps() { 95 // TODO: Here is the list of the missing matchers, grouped by reason. 96 // 97 // Need Variant/Parser fixes: 98 // ofKind 99 // 100 // Polymorphic + argument overload: 101 // findAll 102 // 103 // Other: 104 // equalsNode 105 106 REGISTER_OVERLOADED_2(callee); 107 REGISTER_OVERLOADED_2(hasPrefix); 108 REGISTER_OVERLOADED_2(hasType); 109 REGISTER_OVERLOADED_2(isDerivedFrom); 110 REGISTER_OVERLOADED_2(isSameOrDerivedFrom); 111 REGISTER_OVERLOADED_2(loc); 112 REGISTER_OVERLOADED_2(pointsTo); 113 REGISTER_OVERLOADED_2(references); 114 REGISTER_OVERLOADED_2(thisPointerType); 115 116 std::unique_ptr<MatcherDescriptor> equalsCallbacks[] = { 117 MATCHER_OVERLOAD_ENTRY(equals, 0), 118 MATCHER_OVERLOAD_ENTRY(equals, 1), 119 MATCHER_OVERLOAD_ENTRY(equals, 2), 120 }; 121 REGISTER_MATCHER_OVERLOAD(equals); 122 123 REGISTER_MATCHER(accessSpecDecl); 124 REGISTER_MATCHER(addrLabelExpr); 125 REGISTER_MATCHER(alignOfExpr); 126 REGISTER_MATCHER(allOf); 127 REGISTER_MATCHER(anyOf); 128 REGISTER_MATCHER(anything); 129 REGISTER_MATCHER(argumentCountIs); 130 REGISTER_MATCHER(arraySubscriptExpr); 131 REGISTER_MATCHER(arrayType); 132 REGISTER_MATCHER(asmStmt); 133 REGISTER_MATCHER(asString); 134 REGISTER_MATCHER(atomicExpr); 135 REGISTER_MATCHER(atomicType); 136 REGISTER_MATCHER(autoType); 137 REGISTER_MATCHER(binaryOperator); 138 REGISTER_MATCHER(binaryConditionalOperator); 139 REGISTER_MATCHER(blockPointerType); 140 REGISTER_MATCHER(booleanType); 141 REGISTER_MATCHER(breakStmt); 142 REGISTER_MATCHER(builtinType); 143 REGISTER_MATCHER(callExpr); 144 REGISTER_MATCHER(caseStmt); 145 REGISTER_MATCHER(castExpr); 146 REGISTER_MATCHER(characterLiteral); 147 REGISTER_MATCHER(classTemplateDecl); 148 REGISTER_MATCHER(classTemplateSpecializationDecl); 149 REGISTER_MATCHER(complexType); 150 REGISTER_MATCHER(compoundLiteralExpr); 151 REGISTER_MATCHER(compoundStmt); 152 REGISTER_MATCHER(conditionalOperator); 153 REGISTER_MATCHER(constantArrayType); 154 REGISTER_MATCHER(containsDeclaration); 155 REGISTER_MATCHER(continueStmt); 156 REGISTER_MATCHER(cStyleCastExpr); 157 REGISTER_MATCHER(cudaKernelCallExpr); 158 REGISTER_MATCHER(cxxBindTemporaryExpr); 159 REGISTER_MATCHER(cxxBoolLiteral); 160 REGISTER_MATCHER(cxxCatchStmt); 161 REGISTER_MATCHER(cxxConstCastExpr); 162 REGISTER_MATCHER(cxxConstructExpr); 163 REGISTER_MATCHER(cxxConstructorDecl); 164 REGISTER_MATCHER(cxxConversionDecl); 165 REGISTER_MATCHER(cxxCtorInitializer); 166 REGISTER_MATCHER(cxxDefaultArgExpr); 167 REGISTER_MATCHER(cxxDeleteExpr); 168 REGISTER_MATCHER(cxxDestructorDecl); 169 REGISTER_MATCHER(cxxDynamicCastExpr); 170 REGISTER_MATCHER(cxxForRangeStmt); 171 REGISTER_MATCHER(cxxFunctionalCastExpr); 172 REGISTER_MATCHER(cxxMemberCallExpr); 173 REGISTER_MATCHER(cxxMethodDecl); 174 REGISTER_MATCHER(cxxNewExpr); 175 REGISTER_MATCHER(cxxNullPtrLiteralExpr); 176 REGISTER_MATCHER(cxxOperatorCallExpr); 177 REGISTER_MATCHER(cxxRecordDecl); 178 REGISTER_MATCHER(cxxReinterpretCastExpr); 179 REGISTER_MATCHER(cxxStaticCastExpr); 180 REGISTER_MATCHER(cxxStdInitializerListExpr); 181 REGISTER_MATCHER(cxxTemporaryObjectExpr); 182 REGISTER_MATCHER(cxxThisExpr); 183 REGISTER_MATCHER(cxxThrowExpr); 184 REGISTER_MATCHER(cxxTryStmt); 185 REGISTER_MATCHER(cxxUnresolvedConstructExpr); 186 REGISTER_MATCHER(decayedType); 187 REGISTER_MATCHER(decl); 188 REGISTER_MATCHER(declaratorDecl); 189 REGISTER_MATCHER(declCountIs); 190 REGISTER_MATCHER(declRefExpr); 191 REGISTER_MATCHER(declStmt); 192 REGISTER_MATCHER(defaultStmt); 193 REGISTER_MATCHER(dependentSizedArrayType); 194 REGISTER_MATCHER(designatedInitExpr); 195 REGISTER_MATCHER(designatorCountIs); 196 REGISTER_MATCHER(doStmt); 197 REGISTER_MATCHER(eachOf); 198 REGISTER_MATCHER(elaboratedType); 199 REGISTER_MATCHER(enumConstantDecl); 200 REGISTER_MATCHER(enumDecl); 201 REGISTER_MATCHER(enumType); 202 REGISTER_MATCHER(equalsBoundNode); 203 REGISTER_MATCHER(equalsIntegralValue); 204 REGISTER_MATCHER(explicitCastExpr); 205 REGISTER_MATCHER(expr); 206 REGISTER_MATCHER(exprWithCleanups); 207 REGISTER_MATCHER(fieldDecl); 208 REGISTER_MATCHER(floatLiteral); 209 REGISTER_MATCHER(forEach); 210 REGISTER_MATCHER(forEachArgumentWithParam); 211 REGISTER_MATCHER(forEachConstructorInitializer); 212 REGISTER_MATCHER(forEachDescendant); 213 REGISTER_MATCHER(forEachOverridden); 214 REGISTER_MATCHER(forEachSwitchCase); 215 REGISTER_MATCHER(forField); 216 REGISTER_MATCHER(forFunction); 217 REGISTER_MATCHER(forStmt); 218 REGISTER_MATCHER(friendDecl); 219 REGISTER_MATCHER(functionDecl); 220 REGISTER_MATCHER(functionProtoType); 221 REGISTER_MATCHER(functionTemplateDecl); 222 REGISTER_MATCHER(functionType); 223 REGISTER_MATCHER(gnuNullExpr); 224 REGISTER_MATCHER(gotoStmt); 225 REGISTER_MATCHER(has); 226 REGISTER_MATCHER(hasAncestor); 227 REGISTER_MATCHER(hasAnyArgument); 228 REGISTER_MATCHER(hasAnyConstructorInitializer); 229 REGISTER_MATCHER(hasAnyDeclaration); 230 REGISTER_MATCHER(hasAnyName); 231 REGISTER_MATCHER(hasAnyParameter); 232 REGISTER_MATCHER(hasAnySubstatement); 233 REGISTER_MATCHER(hasAnyTemplateArgument); 234 REGISTER_MATCHER(hasAnyUsingShadowDecl); 235 REGISTER_MATCHER(hasArgument); 236 REGISTER_MATCHER(hasArgumentOfType); 237 REGISTER_MATCHER(hasArraySize); 238 REGISTER_MATCHER(hasAttr); 239 REGISTER_MATCHER(hasAutomaticStorageDuration); 240 REGISTER_MATCHER(hasBase); 241 REGISTER_MATCHER(hasBitWidth); 242 REGISTER_MATCHER(hasBody); 243 REGISTER_MATCHER(hasCanonicalType); 244 REGISTER_MATCHER(hasCaseConstant); 245 REGISTER_MATCHER(hasCastKind); 246 REGISTER_MATCHER(hasCondition); 247 REGISTER_MATCHER(hasConditionVariableStatement); 248 REGISTER_MATCHER(hasDecayedType); 249 REGISTER_MATCHER(hasDeclaration); 250 REGISTER_MATCHER(hasDeclContext); 251 REGISTER_MATCHER(hasDeducedType); 252 REGISTER_MATCHER(hasDefaultArgument); 253 REGISTER_MATCHER(hasDefinition); 254 REGISTER_MATCHER(hasDescendant); 255 REGISTER_MATCHER(hasDestinationType); 256 REGISTER_MATCHER(hasDynamicExceptionSpec); 257 REGISTER_MATCHER(hasEitherOperand); 258 REGISTER_MATCHER(hasElementType); 259 REGISTER_MATCHER(hasElse); 260 REGISTER_MATCHER(hasExternalFormalLinkage); 261 REGISTER_MATCHER(hasFalseExpression); 262 REGISTER_MATCHER(hasGlobalStorage); 263 REGISTER_MATCHER(hasImplicitDestinationType); 264 REGISTER_MATCHER(hasInClassInitializer); 265 REGISTER_MATCHER(hasIncrement); 266 REGISTER_MATCHER(hasIndex); 267 REGISTER_MATCHER(hasInitializer); 268 REGISTER_MATCHER(hasKeywordSelector); 269 REGISTER_MATCHER(hasLHS); 270 REGISTER_MATCHER(hasLocalQualifiers); 271 REGISTER_MATCHER(hasLocalStorage); 272 REGISTER_MATCHER(hasLoopInit); 273 REGISTER_MATCHER(hasLoopVariable); 274 REGISTER_MATCHER(hasMethod); 275 REGISTER_MATCHER(hasName); 276 REGISTER_MATCHER(hasNullSelector); 277 REGISTER_MATCHER(hasObjectExpression); 278 REGISTER_MATCHER(hasOperatorName); 279 REGISTER_MATCHER(hasOverloadedOperatorName); 280 REGISTER_MATCHER(hasParameter); 281 REGISTER_MATCHER(hasParent); 282 REGISTER_MATCHER(hasQualifier); 283 REGISTER_MATCHER(hasRangeInit); 284 REGISTER_MATCHER(hasReceiverType); 285 REGISTER_MATCHER(hasReplacementType); 286 REGISTER_MATCHER(hasReturnValue); 287 REGISTER_MATCHER(hasRHS); 288 REGISTER_MATCHER(hasSelector); 289 REGISTER_MATCHER(hasSingleDecl); 290 REGISTER_MATCHER(hasSize); 291 REGISTER_MATCHER(hasSizeExpr); 292 REGISTER_MATCHER(hasSourceExpression); 293 REGISTER_MATCHER(hasStaticStorageDuration); 294 REGISTER_MATCHER(hasSyntacticForm); 295 REGISTER_MATCHER(hasTargetDecl); 296 REGISTER_MATCHER(hasTemplateArgument); 297 REGISTER_MATCHER(hasThen); 298 REGISTER_MATCHER(hasThreadStorageDuration); 299 REGISTER_MATCHER(hasTrailingReturn); 300 REGISTER_MATCHER(hasTrueExpression); 301 REGISTER_MATCHER(hasTypeLoc); 302 REGISTER_MATCHER(hasUnaryOperand); 303 REGISTER_MATCHER(hasUnarySelector); 304 REGISTER_MATCHER(hasUnderlyingDecl); 305 REGISTER_MATCHER(hasUnqualifiedDesugaredType); 306 REGISTER_MATCHER(hasValueType); 307 REGISTER_MATCHER(ifStmt); 308 REGISTER_MATCHER(ignoringImplicit); 309 REGISTER_MATCHER(ignoringImpCasts); 310 REGISTER_MATCHER(ignoringParenCasts); 311 REGISTER_MATCHER(ignoringParenImpCasts); 312 REGISTER_MATCHER(ignoringParens); 313 REGISTER_MATCHER(implicitCastExpr); 314 REGISTER_MATCHER(implicitValueInitExpr); 315 REGISTER_MATCHER(incompleteArrayType); 316 REGISTER_MATCHER(initListExpr); 317 REGISTER_MATCHER(injectedClassNameType); 318 REGISTER_MATCHER(innerType); 319 REGISTER_MATCHER(integerLiteral); 320 REGISTER_MATCHER(isAnonymous); 321 REGISTER_MATCHER(isAnyCharacter); 322 REGISTER_MATCHER(isAnyPointer); 323 REGISTER_MATCHER(isArray); 324 REGISTER_MATCHER(isArrow); 325 REGISTER_MATCHER(isBaseInitializer); 326 REGISTER_MATCHER(isBitField); 327 REGISTER_MATCHER(isCatchAll); 328 REGISTER_MATCHER(isClass); 329 REGISTER_MATCHER(isConst); 330 REGISTER_MATCHER(isConstexpr); 331 REGISTER_MATCHER(isConstQualified); 332 REGISTER_MATCHER(isCopyAssignmentOperator); 333 REGISTER_MATCHER(isCopyConstructor); 334 REGISTER_MATCHER(isDefaultConstructor); 335 REGISTER_MATCHER(isDefaulted); 336 REGISTER_MATCHER(isDefinition); 337 REGISTER_MATCHER(isDeleted); 338 REGISTER_MATCHER(isExceptionVariable); 339 REGISTER_MATCHER(isExplicit); 340 REGISTER_MATCHER(isExplicitTemplateSpecialization); 341 REGISTER_MATCHER(isExpr); 342 REGISTER_MATCHER(isExternC); 343 REGISTER_MATCHER(isFinal); 344 REGISTER_MATCHER(isInline); 345 REGISTER_MATCHER(isImplicit); 346 REGISTER_MATCHER(isExpansionInFileMatching); 347 REGISTER_MATCHER(isExpansionInMainFile); 348 REGISTER_MATCHER(isInstantiated); 349 REGISTER_MATCHER(isExpansionInSystemHeader); 350 REGISTER_MATCHER(isInteger); 351 REGISTER_MATCHER(isIntegral); 352 REGISTER_MATCHER(isInTemplateInstantiation); 353 REGISTER_MATCHER(isLambda); 354 REGISTER_MATCHER(isListInitialization); 355 REGISTER_MATCHER(isMemberInitializer); 356 REGISTER_MATCHER(isMoveAssignmentOperator); 357 REGISTER_MATCHER(isMoveConstructor); 358 REGISTER_MATCHER(isNoReturn); 359 REGISTER_MATCHER(isNoThrow); 360 REGISTER_MATCHER(isOverride); 361 REGISTER_MATCHER(isPrivate); 362 REGISTER_MATCHER(isProtected); 363 REGISTER_MATCHER(isPublic); 364 REGISTER_MATCHER(isPure); 365 REGISTER_MATCHER(isScoped); 366 REGISTER_MATCHER(isSignedInteger); 367 REGISTER_MATCHER(isStaticStorageClass); 368 REGISTER_MATCHER(isStruct); 369 REGISTER_MATCHER(isTemplateInstantiation); 370 REGISTER_MATCHER(isUnion); 371 REGISTER_MATCHER(isUnsignedInteger); 372 REGISTER_MATCHER(isVariadic); 373 REGISTER_MATCHER(isVirtual); 374 REGISTER_MATCHER(isVirtualAsWritten); 375 REGISTER_MATCHER(isVolatileQualified); 376 REGISTER_MATCHER(isWritten); 377 REGISTER_MATCHER(labelDecl); 378 REGISTER_MATCHER(labelStmt); 379 REGISTER_MATCHER(lambdaExpr); 380 REGISTER_MATCHER(linkageSpecDecl); 381 REGISTER_MATCHER(lValueReferenceType); 382 REGISTER_MATCHER(matchesName); 383 REGISTER_MATCHER(matchesSelector); 384 REGISTER_MATCHER(materializeTemporaryExpr); 385 REGISTER_MATCHER(member); 386 REGISTER_MATCHER(memberExpr); 387 REGISTER_MATCHER(memberPointerType); 388 REGISTER_MATCHER(namedDecl); 389 REGISTER_MATCHER(namespaceAliasDecl); 390 REGISTER_MATCHER(namespaceDecl); 391 REGISTER_MATCHER(namesType); 392 REGISTER_MATCHER(nestedNameSpecifier); 393 REGISTER_MATCHER(nestedNameSpecifierLoc); 394 REGISTER_MATCHER(nullPointerConstant); 395 REGISTER_MATCHER(nullStmt); 396 REGISTER_MATCHER(numSelectorArgs); 397 REGISTER_MATCHER(ofClass); 398 REGISTER_MATCHER(objcCatchStmt); 399 REGISTER_MATCHER(objcCategoryDecl); 400 REGISTER_MATCHER(objcCategoryImplDecl); 401 REGISTER_MATCHER(objcFinallyStmt); 402 REGISTER_MATCHER(objcImplementationDecl); 403 REGISTER_MATCHER(objcInterfaceDecl); 404 REGISTER_MATCHER(objcIvarDecl); 405 REGISTER_MATCHER(objcMessageExpr); 406 REGISTER_MATCHER(objcMethodDecl); 407 REGISTER_MATCHER(objcObjectPointerType); 408 REGISTER_MATCHER(objcPropertyDecl); 409 REGISTER_MATCHER(objcProtocolDecl); 410 REGISTER_MATCHER(objcThrowStmt); 411 REGISTER_MATCHER(objcTryStmt); 412 REGISTER_MATCHER(on); 413 REGISTER_MATCHER(onImplicitObjectArgument); 414 REGISTER_MATCHER(opaqueValueExpr); 415 REGISTER_MATCHER(parameterCountIs); 416 REGISTER_MATCHER(parenExpr); 417 REGISTER_MATCHER(parenListExpr); 418 REGISTER_MATCHER(parenType); 419 REGISTER_MATCHER(parmVarDecl); 420 REGISTER_MATCHER(pointee); 421 REGISTER_MATCHER(pointerType); 422 REGISTER_MATCHER(predefinedExpr); 423 REGISTER_MATCHER(qualType); 424 REGISTER_MATCHER(realFloatingPointType); 425 REGISTER_MATCHER(recordDecl); 426 REGISTER_MATCHER(recordType); 427 REGISTER_MATCHER(referenceType); 428 REGISTER_MATCHER(refersToDeclaration); 429 REGISTER_MATCHER(refersToIntegralType); 430 REGISTER_MATCHER(refersToType); 431 REGISTER_MATCHER(requiresZeroInitialization); 432 REGISTER_MATCHER(returns); 433 REGISTER_MATCHER(returnStmt); 434 REGISTER_MATCHER(rValueReferenceType); 435 REGISTER_MATCHER(sizeOfExpr); 436 REGISTER_MATCHER(specifiesNamespace); 437 REGISTER_MATCHER(specifiesType); 438 REGISTER_MATCHER(specifiesTypeLoc); 439 REGISTER_MATCHER(statementCountIs); 440 REGISTER_MATCHER(staticAssertDecl); 441 REGISTER_MATCHER(stmt); 442 REGISTER_MATCHER(stmtExpr); 443 REGISTER_MATCHER(stringLiteral); 444 REGISTER_MATCHER(substNonTypeTemplateParmExpr); 445 REGISTER_MATCHER(substTemplateTypeParmType); 446 REGISTER_MATCHER(switchCase); 447 REGISTER_MATCHER(switchStmt); 448 REGISTER_MATCHER(templateArgument); 449 REGISTER_MATCHER(templateName); 450 REGISTER_MATCHER(templateArgumentCountIs); 451 REGISTER_MATCHER(templateSpecializationType); 452 REGISTER_MATCHER(templateTypeParmDecl); 453 REGISTER_MATCHER(templateTypeParmType); 454 REGISTER_MATCHER(throughUsingDecl); 455 REGISTER_MATCHER(to); 456 REGISTER_MATCHER(translationUnitDecl); 457 REGISTER_MATCHER(type); 458 REGISTER_MATCHER(typedefDecl); 459 REGISTER_MATCHER(typedefNameDecl); 460 REGISTER_MATCHER(typedefType); 461 REGISTER_MATCHER(typeAliasDecl); 462 REGISTER_MATCHER(typeAliasTemplateDecl); 463 REGISTER_MATCHER(typeLoc); 464 REGISTER_MATCHER(unaryExprOrTypeTraitExpr); 465 REGISTER_MATCHER(unaryOperator); 466 REGISTER_MATCHER(unaryTransformType); 467 REGISTER_MATCHER(unless); 468 REGISTER_MATCHER(unresolvedLookupExpr); 469 REGISTER_MATCHER(unresolvedUsingTypenameDecl); 470 REGISTER_MATCHER(unresolvedUsingValueDecl); 471 REGISTER_MATCHER(userDefinedLiteral); 472 REGISTER_MATCHER(usingDecl); 473 REGISTER_MATCHER(usingDirectiveDecl); 474 REGISTER_MATCHER(valueDecl); 475 REGISTER_MATCHER(varDecl); 476 REGISTER_MATCHER(variableArrayType); 477 REGISTER_MATCHER(voidType); 478 REGISTER_MATCHER(whileStmt); 479 REGISTER_MATCHER(withInitializer); 480 } 481 482 RegistryMaps::~RegistryMaps() = default; 483 484 static llvm::ManagedStatic<RegistryMaps> RegistryData; 485 486 // static 487 llvm::Optional<MatcherCtor> Registry::lookupMatcherCtor(StringRef MatcherName) { 488 auto it = RegistryData->constructors().find(MatcherName); 489 return it == RegistryData->constructors().end() 490 ? llvm::Optional<MatcherCtor>() 491 : it->second.get(); 492 } 493 494 static llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, 495 const std::set<ASTNodeKind> &KS) { 496 unsigned Count = 0; 497 for (std::set<ASTNodeKind>::const_iterator I = KS.begin(), E = KS.end(); 498 I != E; ++I) { 499 if (I != KS.begin()) 500 OS << "|"; 501 if (Count++ == 3) { 502 OS << "..."; 503 break; 504 } 505 OS << *I; 506 } 507 return OS; 508 } 509 510 std::vector<ArgKind> Registry::getAcceptedCompletionTypes( 511 ArrayRef<std::pair<MatcherCtor, unsigned>> Context) { 512 ASTNodeKind InitialTypes[] = { 513 ASTNodeKind::getFromNodeKind<Decl>(), 514 ASTNodeKind::getFromNodeKind<QualType>(), 515 ASTNodeKind::getFromNodeKind<Type>(), 516 ASTNodeKind::getFromNodeKind<Stmt>(), 517 ASTNodeKind::getFromNodeKind<NestedNameSpecifier>(), 518 ASTNodeKind::getFromNodeKind<NestedNameSpecifierLoc>(), 519 ASTNodeKind::getFromNodeKind<TypeLoc>()}; 520 521 // Starting with the above seed of acceptable top-level matcher types, compute 522 // the acceptable type set for the argument indicated by each context element. 523 std::set<ArgKind> TypeSet(std::begin(InitialTypes), std::end(InitialTypes)); 524 for (const auto &CtxEntry : Context) { 525 MatcherCtor Ctor = CtxEntry.first; 526 unsigned ArgNumber = CtxEntry.second; 527 std::vector<ArgKind> NextTypeSet; 528 for (const ArgKind &Kind : TypeSet) { 529 if (Kind.getArgKind() == Kind.AK_Matcher && 530 Ctor->isConvertibleTo(Kind.getMatcherKind()) && 531 (Ctor->isVariadic() || ArgNumber < Ctor->getNumArgs())) 532 Ctor->getArgKinds(Kind.getMatcherKind(), ArgNumber, NextTypeSet); 533 } 534 TypeSet.clear(); 535 TypeSet.insert(NextTypeSet.begin(), NextTypeSet.end()); 536 } 537 return std::vector<ArgKind>(TypeSet.begin(), TypeSet.end()); 538 } 539 540 std::vector<MatcherCompletion> 541 Registry::getMatcherCompletions(ArrayRef<ArgKind> AcceptedTypes) { 542 std::vector<MatcherCompletion> Completions; 543 544 // Search the registry for acceptable matchers. 545 for (const auto &M : RegistryData->constructors()) { 546 const MatcherDescriptor& Matcher = *M.getValue(); 547 StringRef Name = M.getKey(); 548 549 std::set<ASTNodeKind> RetKinds; 550 unsigned NumArgs = Matcher.isVariadic() ? 1 : Matcher.getNumArgs(); 551 bool IsPolymorphic = Matcher.isPolymorphic(); 552 std::vector<std::vector<ArgKind>> ArgsKinds(NumArgs); 553 unsigned MaxSpecificity = 0; 554 for (const ArgKind& Kind : AcceptedTypes) { 555 if (Kind.getArgKind() != Kind.AK_Matcher) 556 continue; 557 unsigned Specificity; 558 ASTNodeKind LeastDerivedKind; 559 if (Matcher.isConvertibleTo(Kind.getMatcherKind(), &Specificity, 560 &LeastDerivedKind)) { 561 if (MaxSpecificity < Specificity) 562 MaxSpecificity = Specificity; 563 RetKinds.insert(LeastDerivedKind); 564 for (unsigned Arg = 0; Arg != NumArgs; ++Arg) 565 Matcher.getArgKinds(Kind.getMatcherKind(), Arg, ArgsKinds[Arg]); 566 if (IsPolymorphic) 567 break; 568 } 569 } 570 571 if (!RetKinds.empty() && MaxSpecificity > 0) { 572 std::string Decl; 573 llvm::raw_string_ostream OS(Decl); 574 575 if (IsPolymorphic) { 576 OS << "Matcher<T> " << Name << "(Matcher<T>"; 577 } else { 578 OS << "Matcher<" << RetKinds << "> " << Name << "("; 579 for (const std::vector<ArgKind> &Arg : ArgsKinds) { 580 if (&Arg != &ArgsKinds[0]) 581 OS << ", "; 582 583 bool FirstArgKind = true; 584 std::set<ASTNodeKind> MatcherKinds; 585 // Two steps. First all non-matchers, then matchers only. 586 for (const ArgKind &AK : Arg) { 587 if (AK.getArgKind() == ArgKind::AK_Matcher) { 588 MatcherKinds.insert(AK.getMatcherKind()); 589 } else { 590 if (!FirstArgKind) OS << "|"; 591 FirstArgKind = false; 592 OS << AK.asString(); 593 } 594 } 595 if (!MatcherKinds.empty()) { 596 if (!FirstArgKind) OS << "|"; 597 OS << "Matcher<" << MatcherKinds << ">"; 598 } 599 } 600 } 601 if (Matcher.isVariadic()) 602 OS << "..."; 603 OS << ")"; 604 605 std::string TypedText = Name; 606 TypedText += "("; 607 if (ArgsKinds.empty()) 608 TypedText += ")"; 609 else if (ArgsKinds[0][0].getArgKind() == ArgKind::AK_String) 610 TypedText += "\""; 611 612 Completions.emplace_back(TypedText, OS.str(), MaxSpecificity); 613 } 614 } 615 616 return Completions; 617 } 618 619 VariantMatcher Registry::constructMatcher(MatcherCtor Ctor, 620 SourceRange NameRange, 621 ArrayRef<ParserValue> Args, 622 Diagnostics *Error) { 623 return Ctor->create(NameRange, Args, Error); 624 } 625 626 VariantMatcher Registry::constructBoundMatcher(MatcherCtor Ctor, 627 SourceRange NameRange, 628 StringRef BindID, 629 ArrayRef<ParserValue> Args, 630 Diagnostics *Error) { 631 VariantMatcher Out = constructMatcher(Ctor, NameRange, Args, Error); 632 if (Out.isNull()) return Out; 633 634 llvm::Optional<DynTypedMatcher> Result = Out.getSingleMatcher(); 635 if (Result.hasValue()) { 636 llvm::Optional<DynTypedMatcher> Bound = Result->tryBind(BindID); 637 if (Bound.hasValue()) { 638 return VariantMatcher::SingleMatcher(*Bound); 639 } 640 } 641 Error->addError(NameRange, Error->ET_RegistryNotBindable); 642 return VariantMatcher(); 643 } 644 645 } // namespace dynamic 646 } // namespace ast_matchers 647 } // namespace clang 648