1 //===--- Registry.cpp - Matcher registry -------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===------------------------------------------------------------===//
11 /// \brief Registry map populated at static initialization time.
13 //===------------------------------------------------------------===//
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"
25 using namespace clang::ast_type_traits;
28 namespace ast_matchers {
32 using internal::MatcherDescriptor;
34 typedef llvm::StringMap<std::unique_ptr<const MatcherDescriptor>> ConstructorMap;
40 const ConstructorMap &constructors() const { return Constructors; }
43 void registerMatcher(StringRef MatcherName,
44 std::unique_ptr<MatcherDescriptor> Callback);
46 ConstructorMap Constructors;
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);
55 #define REGISTER_MATCHER(name) \
56 registerMatcher(#name, internal::makeMatcherAutoMarshall( \
57 ::clang::ast_matchers::name, #name));
59 #define REGISTER_MATCHER_OVERLOAD(name) \
60 registerMatcher(#name, \
61 llvm::make_unique<internal::OverloadedMatcherDescriptor>(name##Callbacks))
63 #define SPECIFIC_MATCHER_OVERLOAD(name, Id) \
64 static_cast<::clang::ast_matchers::name##_Type##Id>( \
65 ::clang::ast_matchers::name)
67 #define MATCHER_OVERLOAD_ENTRY(name, Id) \
68 internal::makeMatcherAutoMarshall(SPECIFIC_MATCHER_OVERLOAD(name, Id), \
71 #define REGISTER_OVERLOADED_2(name) \
73 std::unique_ptr<MatcherDescriptor> name##Callbacks[] = { \
74 MATCHER_OVERLOAD_ENTRY(name, 0), \
75 MATCHER_OVERLOAD_ENTRY(name, 1)}; \
76 REGISTER_MATCHER_OVERLOAD(name); \
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.
83 // Need Variant/Parser fixes:
86 // Polymorphic + argument overload:
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);
102 std::unique_ptr<MatcherDescriptor> equalsCallbacks[] = {
103 MATCHER_OVERLOAD_ENTRY(equals, 0),
104 MATCHER_OVERLOAD_ENTRY(equals, 1),
105 MATCHER_OVERLOAD_ENTRY(equals, 2),
107 REGISTER_MATCHER_OVERLOAD(equals);
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(lValueReferenceType);
359 REGISTER_MATCHER(matchesName);
360 REGISTER_MATCHER(matchesSelector);
361 REGISTER_MATCHER(materializeTemporaryExpr);
362 REGISTER_MATCHER(member);
363 REGISTER_MATCHER(memberExpr);
364 REGISTER_MATCHER(memberPointerType);
365 REGISTER_MATCHER(namedDecl);
366 REGISTER_MATCHER(namespaceAliasDecl);
367 REGISTER_MATCHER(namespaceDecl);
368 REGISTER_MATCHER(namesType);
369 REGISTER_MATCHER(nestedNameSpecifier);
370 REGISTER_MATCHER(nestedNameSpecifierLoc);
371 REGISTER_MATCHER(nullPointerConstant);
372 REGISTER_MATCHER(nullStmt);
373 REGISTER_MATCHER(numSelectorArgs);
374 REGISTER_MATCHER(ofClass);
375 REGISTER_MATCHER(objcCategoryDecl);
376 REGISTER_MATCHER(objcInterfaceDecl);
377 REGISTER_MATCHER(objcIvarDecl);
378 REGISTER_MATCHER(objcMessageExpr);
379 REGISTER_MATCHER(objcMethodDecl);
380 REGISTER_MATCHER(objcObjectPointerType);
381 REGISTER_MATCHER(objcPropertyDecl);
382 REGISTER_MATCHER(objcProtocolDecl);
383 REGISTER_MATCHER(on);
384 REGISTER_MATCHER(onImplicitObjectArgument);
385 REGISTER_MATCHER(opaqueValueExpr);
386 REGISTER_MATCHER(parameterCountIs);
387 REGISTER_MATCHER(parenExpr);
388 REGISTER_MATCHER(parenListExpr);
389 REGISTER_MATCHER(parenType);
390 REGISTER_MATCHER(parmVarDecl);
391 REGISTER_MATCHER(pointee);
392 REGISTER_MATCHER(pointerType);
393 REGISTER_MATCHER(predefinedExpr);
394 REGISTER_MATCHER(qualType);
395 REGISTER_MATCHER(realFloatingPointType);
396 REGISTER_MATCHER(recordDecl);
397 REGISTER_MATCHER(recordType);
398 REGISTER_MATCHER(referenceType);
399 REGISTER_MATCHER(refersToDeclaration);
400 REGISTER_MATCHER(refersToIntegralType);
401 REGISTER_MATCHER(refersToType);
402 REGISTER_MATCHER(requiresZeroInitialization);
403 REGISTER_MATCHER(returns);
404 REGISTER_MATCHER(returnStmt);
405 REGISTER_MATCHER(rValueReferenceType);
406 REGISTER_MATCHER(sizeOfExpr);
407 REGISTER_MATCHER(specifiesNamespace);
408 REGISTER_MATCHER(specifiesType);
409 REGISTER_MATCHER(specifiesTypeLoc);
410 REGISTER_MATCHER(statementCountIs);
411 REGISTER_MATCHER(staticAssertDecl);
412 REGISTER_MATCHER(stmt);
413 REGISTER_MATCHER(stmtExpr);
414 REGISTER_MATCHER(stringLiteral);
415 REGISTER_MATCHER(substNonTypeTemplateParmExpr);
416 REGISTER_MATCHER(substTemplateTypeParmType);
417 REGISTER_MATCHER(switchCase);
418 REGISTER_MATCHER(switchStmt);
419 REGISTER_MATCHER(templateArgument);
420 REGISTER_MATCHER(templateName);
421 REGISTER_MATCHER(templateArgumentCountIs);
422 REGISTER_MATCHER(templateSpecializationType);
423 REGISTER_MATCHER(templateTypeParmDecl);
424 REGISTER_MATCHER(templateTypeParmType);
425 REGISTER_MATCHER(throughUsingDecl);
426 REGISTER_MATCHER(to);
427 REGISTER_MATCHER(translationUnitDecl);
428 REGISTER_MATCHER(type);
429 REGISTER_MATCHER(typedefDecl);
430 REGISTER_MATCHER(typedefNameDecl);
431 REGISTER_MATCHER(typedefType);
432 REGISTER_MATCHER(typeAliasDecl);
433 REGISTER_MATCHER(typeAliasTemplateDecl);
434 REGISTER_MATCHER(typeLoc);
435 REGISTER_MATCHER(unaryExprOrTypeTraitExpr);
436 REGISTER_MATCHER(unaryOperator);
437 REGISTER_MATCHER(unaryTransformType);
438 REGISTER_MATCHER(unless);
439 REGISTER_MATCHER(unresolvedLookupExpr);
440 REGISTER_MATCHER(unresolvedUsingTypenameDecl);
441 REGISTER_MATCHER(unresolvedUsingValueDecl);
442 REGISTER_MATCHER(userDefinedLiteral);
443 REGISTER_MATCHER(usingDecl);
444 REGISTER_MATCHER(usingDirectiveDecl);
445 REGISTER_MATCHER(valueDecl);
446 REGISTER_MATCHER(varDecl);
447 REGISTER_MATCHER(variableArrayType);
448 REGISTER_MATCHER(voidType);
449 REGISTER_MATCHER(whileStmt);
450 REGISTER_MATCHER(withInitializer);
453 RegistryMaps::~RegistryMaps() {}
455 static llvm::ManagedStatic<RegistryMaps> RegistryData;
457 } // anonymous namespace
460 llvm::Optional<MatcherCtor> Registry::lookupMatcherCtor(StringRef MatcherName) {
461 auto it = RegistryData->constructors().find(MatcherName);
462 return it == RegistryData->constructors().end()
463 ? llvm::Optional<MatcherCtor>()
469 llvm::raw_ostream &operator<<(llvm::raw_ostream &OS,
470 const std::set<ASTNodeKind> &KS) {
472 for (std::set<ASTNodeKind>::const_iterator I = KS.begin(), E = KS.end();
487 std::vector<ArgKind> Registry::getAcceptedCompletionTypes(
488 ArrayRef<std::pair<MatcherCtor, unsigned>> Context) {
489 ASTNodeKind InitialTypes[] = {
490 ASTNodeKind::getFromNodeKind<Decl>(),
491 ASTNodeKind::getFromNodeKind<QualType>(),
492 ASTNodeKind::getFromNodeKind<Type>(),
493 ASTNodeKind::getFromNodeKind<Stmt>(),
494 ASTNodeKind::getFromNodeKind<NestedNameSpecifier>(),
495 ASTNodeKind::getFromNodeKind<NestedNameSpecifierLoc>(),
496 ASTNodeKind::getFromNodeKind<TypeLoc>()};
498 // Starting with the above seed of acceptable top-level matcher types, compute
499 // the acceptable type set for the argument indicated by each context element.
500 std::set<ArgKind> TypeSet(std::begin(InitialTypes), std::end(InitialTypes));
501 for (const auto &CtxEntry : Context) {
502 MatcherCtor Ctor = CtxEntry.first;
503 unsigned ArgNumber = CtxEntry.second;
504 std::vector<ArgKind> NextTypeSet;
505 for (const ArgKind &Kind : TypeSet) {
506 if (Kind.getArgKind() == Kind.AK_Matcher &&
507 Ctor->isConvertibleTo(Kind.getMatcherKind()) &&
508 (Ctor->isVariadic() || ArgNumber < Ctor->getNumArgs()))
509 Ctor->getArgKinds(Kind.getMatcherKind(), ArgNumber, NextTypeSet);
512 TypeSet.insert(NextTypeSet.begin(), NextTypeSet.end());
514 return std::vector<ArgKind>(TypeSet.begin(), TypeSet.end());
517 std::vector<MatcherCompletion>
518 Registry::getMatcherCompletions(ArrayRef<ArgKind> AcceptedTypes) {
519 std::vector<MatcherCompletion> Completions;
521 // Search the registry for acceptable matchers.
522 for (const auto &M : RegistryData->constructors()) {
523 const MatcherDescriptor& Matcher = *M.getValue();
524 StringRef Name = M.getKey();
526 std::set<ASTNodeKind> RetKinds;
527 unsigned NumArgs = Matcher.isVariadic() ? 1 : Matcher.getNumArgs();
528 bool IsPolymorphic = Matcher.isPolymorphic();
529 std::vector<std::vector<ArgKind>> ArgsKinds(NumArgs);
530 unsigned MaxSpecificity = 0;
531 for (const ArgKind& Kind : AcceptedTypes) {
532 if (Kind.getArgKind() != Kind.AK_Matcher)
534 unsigned Specificity;
535 ASTNodeKind LeastDerivedKind;
536 if (Matcher.isConvertibleTo(Kind.getMatcherKind(), &Specificity,
537 &LeastDerivedKind)) {
538 if (MaxSpecificity < Specificity)
539 MaxSpecificity = Specificity;
540 RetKinds.insert(LeastDerivedKind);
541 for (unsigned Arg = 0; Arg != NumArgs; ++Arg)
542 Matcher.getArgKinds(Kind.getMatcherKind(), Arg, ArgsKinds[Arg]);
548 if (!RetKinds.empty() && MaxSpecificity > 0) {
550 llvm::raw_string_ostream OS(Decl);
553 OS << "Matcher<T> " << Name << "(Matcher<T>";
555 OS << "Matcher<" << RetKinds << "> " << Name << "(";
556 for (const std::vector<ArgKind> &Arg : ArgsKinds) {
557 if (&Arg != &ArgsKinds[0])
560 bool FirstArgKind = true;
561 std::set<ASTNodeKind> MatcherKinds;
562 // Two steps. First all non-matchers, then matchers only.
563 for (const ArgKind &AK : Arg) {
564 if (AK.getArgKind() == ArgKind::AK_Matcher) {
565 MatcherKinds.insert(AK.getMatcherKind());
567 if (!FirstArgKind) OS << "|";
568 FirstArgKind = false;
572 if (!MatcherKinds.empty()) {
573 if (!FirstArgKind) OS << "|";
574 OS << "Matcher<" << MatcherKinds << ">";
578 if (Matcher.isVariadic())
582 std::string TypedText = Name;
584 if (ArgsKinds.empty())
586 else if (ArgsKinds[0][0].getArgKind() == ArgKind::AK_String)
589 Completions.emplace_back(TypedText, OS.str(), MaxSpecificity);
597 VariantMatcher Registry::constructMatcher(MatcherCtor Ctor,
598 SourceRange NameRange,
599 ArrayRef<ParserValue> Args,
600 Diagnostics *Error) {
601 return Ctor->create(NameRange, Args, Error);
605 VariantMatcher Registry::constructBoundMatcher(MatcherCtor Ctor,
606 SourceRange NameRange,
608 ArrayRef<ParserValue> Args,
609 Diagnostics *Error) {
610 VariantMatcher Out = constructMatcher(Ctor, NameRange, Args, Error);
611 if (Out.isNull()) return Out;
613 llvm::Optional<DynTypedMatcher> Result = Out.getSingleMatcher();
614 if (Result.hasValue()) {
615 llvm::Optional<DynTypedMatcher> Bound = Result->tryBind(BindID);
616 if (Bound.hasValue()) {
617 return VariantMatcher::SingleMatcher(*Bound);
620 Error->addError(NameRange, Error->ET_RegistryNotBindable);
621 return VariantMatcher();
624 } // namespace dynamic
625 } // namespace ast_matchers