8e62dce4fab5276b87320848723f5a5540eeb553
[lldb.git] / clang / lib / ASTMatchers / Dynamic / Registry.cpp
1 //===- Registry.cpp - Matcher registry ------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 /// \file
10 /// Registry map populated at static initialization time.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "clang/ASTMatchers/Dynamic/Registry.h"
15 #include "Marshallers.h"
16 #include "clang/AST/ASTTypeTraits.h"
17 #include "clang/ASTMatchers/ASTMatchers.h"
18 #include "clang/ASTMatchers/Dynamic/Diagnostics.h"
19 #include "clang/ASTMatchers/Dynamic/VariantValue.h"
20 #include "llvm/ADT/Optional.h"
21 #include "llvm/ADT/STLExtras.h"
22 #include "llvm/ADT/StringMap.h"
23 #include "llvm/ADT/StringRef.h"
24 #include "llvm/Support/ManagedStatic.h"
25 #include "llvm/Support/raw_ostream.h"
26 #include <cassert>
27 #include <iterator>
28 #include <memory>
29 #include <set>
30 #include <string>
31 #include <utility>
32 #include <vector>
33
34 using namespace clang::ast_type_traits;
35
36 namespace clang {
37 namespace ast_matchers {
38 namespace dynamic {
39
40 namespace {
41
42 using internal::MatcherDescriptor;
43
44 using ConstructorMap =
45     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       std::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 #define REGISTER_REGEX_MATCHER(name)                                           \
94   registerMatcher(#name, internal::makeMatcherRegexMarshall(name, name))
95
96 /// Generate a registry map with all the known matchers.
97 /// Please keep sorted alphabetically!
98 RegistryMaps::RegistryMaps() {
99   // TODO: Here is the list of the missing matchers, grouped by reason.
100   //
101   // Polymorphic + argument overload:
102   // findAll
103   //
104   // Other:
105   // equalsNode
106
107   REGISTER_OVERLOADED_2(callee);
108   REGISTER_OVERLOADED_2(hasAnyCapture);
109   REGISTER_OVERLOADED_2(hasPrefix);
110   REGISTER_OVERLOADED_2(hasType);
111   REGISTER_OVERLOADED_2(ignoringParens);
112   REGISTER_OVERLOADED_2(isDerivedFrom);
113   REGISTER_OVERLOADED_2(isDirectlyDerivedFrom);
114   REGISTER_OVERLOADED_2(isSameOrDerivedFrom);
115   REGISTER_OVERLOADED_2(loc);
116   REGISTER_OVERLOADED_2(pointsTo);
117   REGISTER_OVERLOADED_2(references);
118   REGISTER_OVERLOADED_2(thisPointerType);
119
120   std::unique_ptr<MatcherDescriptor> equalsCallbacks[] = {
121       MATCHER_OVERLOAD_ENTRY(equals, 0),
122       MATCHER_OVERLOAD_ENTRY(equals, 1),
123       MATCHER_OVERLOAD_ENTRY(equals, 2),
124   };
125   REGISTER_MATCHER_OVERLOAD(equals);
126
127   REGISTER_REGEX_MATCHER(isExpansionInFileMatching);
128   REGISTER_REGEX_MATCHER(matchesName);
129   REGISTER_REGEX_MATCHER(matchesSelector);
130
131   REGISTER_MATCHER(accessSpecDecl);
132   REGISTER_MATCHER(addrLabelExpr);
133   REGISTER_MATCHER(alignOfExpr);
134   REGISTER_MATCHER(allOf);
135   REGISTER_MATCHER(anyOf);
136   REGISTER_MATCHER(anything);
137   REGISTER_MATCHER(argumentCountIs);
138   REGISTER_MATCHER(arraySubscriptExpr);
139   REGISTER_MATCHER(arrayType);
140   REGISTER_MATCHER(asString);
141   REGISTER_MATCHER(asmStmt);
142   REGISTER_MATCHER(atomicExpr);
143   REGISTER_MATCHER(atomicType);
144   REGISTER_MATCHER(autoType);
145   REGISTER_MATCHER(autoreleasePoolStmt)
146   REGISTER_MATCHER(binaryConditionalOperator);
147   REGISTER_MATCHER(binaryOperator);
148   REGISTER_MATCHER(blockDecl);
149   REGISTER_MATCHER(blockExpr);
150   REGISTER_MATCHER(blockPointerType);
151   REGISTER_MATCHER(booleanType);
152   REGISTER_MATCHER(breakStmt);
153   REGISTER_MATCHER(builtinType);
154   REGISTER_MATCHER(cStyleCastExpr);
155   REGISTER_MATCHER(callExpr);
156   REGISTER_MATCHER(caseStmt);
157   REGISTER_MATCHER(castExpr);
158   REGISTER_MATCHER(characterLiteral);
159   REGISTER_MATCHER(chooseExpr);
160   REGISTER_MATCHER(classTemplateDecl);
161   REGISTER_MATCHER(classTemplatePartialSpecializationDecl);
162   REGISTER_MATCHER(classTemplateSpecializationDecl);
163   REGISTER_MATCHER(complexType);
164   REGISTER_MATCHER(compoundLiteralExpr);
165   REGISTER_MATCHER(compoundStmt);
166   REGISTER_MATCHER(conditionalOperator);
167   REGISTER_MATCHER(constantArrayType);
168   REGISTER_MATCHER(constantExpr);
169   REGISTER_MATCHER(containsDeclaration);
170   REGISTER_MATCHER(continueStmt);
171   REGISTER_MATCHER(cudaKernelCallExpr);
172   REGISTER_MATCHER(cxxBindTemporaryExpr);
173   REGISTER_MATCHER(cxxBoolLiteral);
174   REGISTER_MATCHER(cxxCatchStmt);
175   REGISTER_MATCHER(cxxConstCastExpr);
176   REGISTER_MATCHER(cxxConstructExpr);
177   REGISTER_MATCHER(cxxConstructorDecl);
178   REGISTER_MATCHER(cxxConversionDecl);
179   REGISTER_MATCHER(cxxCtorInitializer);
180   REGISTER_MATCHER(cxxDeductionGuideDecl);
181   REGISTER_MATCHER(cxxDefaultArgExpr);
182   REGISTER_MATCHER(cxxDeleteExpr);
183   REGISTER_MATCHER(cxxDependentScopeMemberExpr);
184   REGISTER_MATCHER(cxxDestructorDecl);
185   REGISTER_MATCHER(cxxDynamicCastExpr);
186   REGISTER_MATCHER(cxxForRangeStmt);
187   REGISTER_MATCHER(cxxFunctionalCastExpr);
188   REGISTER_MATCHER(cxxMemberCallExpr);
189   REGISTER_MATCHER(cxxMethodDecl);
190   REGISTER_MATCHER(cxxNewExpr);
191   REGISTER_MATCHER(cxxNoexceptExpr);
192   REGISTER_MATCHER(cxxNullPtrLiteralExpr);
193   REGISTER_MATCHER(cxxOperatorCallExpr);
194   REGISTER_MATCHER(cxxRecordDecl);
195   REGISTER_MATCHER(cxxReinterpretCastExpr);
196   REGISTER_MATCHER(cxxStaticCastExpr);
197   REGISTER_MATCHER(cxxStdInitializerListExpr);
198   REGISTER_MATCHER(cxxTemporaryObjectExpr);
199   REGISTER_MATCHER(cxxThisExpr);
200   REGISTER_MATCHER(cxxThrowExpr);
201   REGISTER_MATCHER(cxxTryStmt);
202   REGISTER_MATCHER(cxxUnresolvedConstructExpr);
203   REGISTER_MATCHER(decayedType);
204   REGISTER_MATCHER(decl);
205   REGISTER_MATCHER(decompositionDecl);
206   REGISTER_MATCHER(declCountIs);
207   REGISTER_MATCHER(declRefExpr);
208   REGISTER_MATCHER(declStmt);
209   REGISTER_MATCHER(declaratorDecl);
210   REGISTER_MATCHER(decltypeType);
211   REGISTER_MATCHER(deducedTemplateSpecializationType);
212   REGISTER_MATCHER(defaultStmt);
213   REGISTER_MATCHER(dependentSizedArrayType);
214   REGISTER_MATCHER(designatedInitExpr);
215   REGISTER_MATCHER(designatorCountIs);
216   REGISTER_MATCHER(doStmt);
217   REGISTER_MATCHER(eachOf);
218   REGISTER_MATCHER(elaboratedType);
219   REGISTER_MATCHER(enumConstantDecl);
220   REGISTER_MATCHER(enumDecl);
221   REGISTER_MATCHER(enumType);
222   REGISTER_MATCHER(equalsBoundNode);
223   REGISTER_MATCHER(equalsIntegralValue);
224   REGISTER_MATCHER(explicitCastExpr);
225   REGISTER_MATCHER(expr);
226   REGISTER_MATCHER(exprWithCleanups);
227   REGISTER_MATCHER(fieldDecl);
228   REGISTER_MATCHER(floatLiteral);
229   REGISTER_MATCHER(forEach);
230   REGISTER_MATCHER(forEachArgumentWithParam);
231   REGISTER_MATCHER(forEachArgumentWithParamType);
232   REGISTER_MATCHER(forEachConstructorInitializer);
233   REGISTER_MATCHER(forEachDescendant);
234   REGISTER_MATCHER(forEachOverridden);
235   REGISTER_MATCHER(forEachSwitchCase);
236   REGISTER_MATCHER(forField);
237   REGISTER_MATCHER(forFunction);
238   REGISTER_MATCHER(forStmt);
239   REGISTER_MATCHER(friendDecl);
240   REGISTER_MATCHER(functionDecl);
241   REGISTER_MATCHER(functionProtoType);
242   REGISTER_MATCHER(functionTemplateDecl);
243   REGISTER_MATCHER(functionType);
244   REGISTER_MATCHER(gnuNullExpr);
245   REGISTER_MATCHER(gotoStmt);
246   REGISTER_MATCHER(has);
247   REGISTER_MATCHER(hasAncestor);
248   REGISTER_MATCHER(hasAnyArgument);
249   REGISTER_MATCHER(hasAnyBase);
250   REGISTER_MATCHER(hasAnyClause);
251   REGISTER_MATCHER(hasAnyConstructorInitializer);
252   REGISTER_MATCHER(hasAnyDeclaration);
253   REGISTER_MATCHER(hasAnyName);
254   REGISTER_MATCHER(hasAnyOperatorName);
255   REGISTER_MATCHER(hasAnyOverloadedOperatorName);
256   REGISTER_MATCHER(hasAnyParameter);
257   REGISTER_MATCHER(hasAnyPlacementArg);
258   REGISTER_MATCHER(hasAnySelector);
259   REGISTER_MATCHER(hasAnySubstatement);
260   REGISTER_MATCHER(hasAnyTemplateArgument);
261   REGISTER_MATCHER(hasAnyUsingShadowDecl);
262   REGISTER_MATCHER(hasArgument);
263   REGISTER_MATCHER(hasArgumentOfType);
264   REGISTER_MATCHER(hasArraySize);
265   REGISTER_MATCHER(hasAttr);
266   REGISTER_MATCHER(hasAutomaticStorageDuration);
267   REGISTER_MATCHER(hasBase);
268   REGISTER_MATCHER(hasBitWidth);
269   REGISTER_MATCHER(hasBody);
270   REGISTER_MATCHER(hasCanonicalType);
271   REGISTER_MATCHER(hasCaseConstant);
272   REGISTER_MATCHER(hasCastKind);
273   REGISTER_MATCHER(hasCondition);
274   REGISTER_MATCHER(hasConditionVariableStatement);
275   REGISTER_MATCHER(hasDecayedType);
276   REGISTER_MATCHER(hasDeclContext);
277   REGISTER_MATCHER(hasDeclaration);
278   REGISTER_MATCHER(hasDeducedType);
279   REGISTER_MATCHER(hasDefaultArgument);
280   REGISTER_MATCHER(hasDefinition);
281   REGISTER_MATCHER(hasDescendant);
282   REGISTER_MATCHER(hasDestinationType);
283   REGISTER_MATCHER(hasDirectBase);
284   REGISTER_MATCHER(hasDynamicExceptionSpec);
285   REGISTER_MATCHER(hasEitherOperand);
286   REGISTER_MATCHER(hasElementType);
287   REGISTER_MATCHER(hasElse);
288   REGISTER_MATCHER(hasExplicitSpecifier);
289   REGISTER_MATCHER(hasExternalFormalLinkage);
290   REGISTER_MATCHER(hasFalseExpression);
291   REGISTER_MATCHER(hasGlobalStorage);
292   REGISTER_MATCHER(hasImplicitDestinationType);
293   REGISTER_MATCHER(hasInClassInitializer);
294   REGISTER_MATCHER(hasIncrement);
295   REGISTER_MATCHER(hasIndex);
296   REGISTER_MATCHER(hasInit);
297   REGISTER_MATCHER(hasInitializer);
298   REGISTER_MATCHER(hasInitStatement);
299   REGISTER_MATCHER(hasKeywordSelector);
300   REGISTER_MATCHER(hasLHS);
301   REGISTER_MATCHER(hasLocalQualifiers);
302   REGISTER_MATCHER(hasLocalStorage);
303   REGISTER_MATCHER(hasLoopInit);
304   REGISTER_MATCHER(hasLoopVariable);
305   REGISTER_MATCHER(hasMethod);
306   REGISTER_MATCHER(hasName);
307   REGISTER_MATCHER(hasNullSelector);
308   REGISTER_MATCHER(hasObjectExpression);
309   REGISTER_MATCHER(hasOperands);
310   REGISTER_MATCHER(hasOperatorName);
311   REGISTER_MATCHER(hasOverloadedOperatorName);
312   REGISTER_MATCHER(hasParameter);
313   REGISTER_MATCHER(hasParent);
314   REGISTER_MATCHER(hasQualifier);
315   REGISTER_MATCHER(hasRHS);
316   REGISTER_MATCHER(hasRangeInit);
317   REGISTER_MATCHER(hasReceiver);
318   REGISTER_MATCHER(hasReceiverType);
319   REGISTER_MATCHER(hasReplacementType);
320   REGISTER_MATCHER(hasReturnValue);
321   REGISTER_MATCHER(hasPlacementArg);
322   REGISTER_MATCHER(hasSelector);
323   REGISTER_MATCHER(hasSingleDecl);
324   REGISTER_MATCHER(hasSize);
325   REGISTER_MATCHER(hasSizeExpr);
326   REGISTER_MATCHER(hasSourceExpression);
327   REGISTER_MATCHER(hasSpecializedTemplate);
328   REGISTER_MATCHER(hasStaticStorageDuration);
329   REGISTER_MATCHER(hasStructuredBlock);
330   REGISTER_MATCHER(hasSyntacticForm);
331   REGISTER_MATCHER(hasTargetDecl);
332   REGISTER_MATCHER(hasTemplateArgument);
333   REGISTER_MATCHER(hasThen);
334   REGISTER_MATCHER(hasThreadStorageDuration);
335   REGISTER_MATCHER(hasTrailingReturn);
336   REGISTER_MATCHER(hasTrueExpression);
337   REGISTER_MATCHER(hasTypeLoc);
338   REGISTER_MATCHER(hasUnaryOperand);
339   REGISTER_MATCHER(hasUnarySelector);
340   REGISTER_MATCHER(hasUnderlyingDecl);
341   REGISTER_MATCHER(hasUnderlyingType);
342   REGISTER_MATCHER(hasUnqualifiedDesugaredType);
343   REGISTER_MATCHER(hasValueType);
344   REGISTER_MATCHER(ifStmt);
345   REGISTER_MATCHER(ignoringElidableConstructorCall);
346   REGISTER_MATCHER(ignoringImpCasts);
347   REGISTER_MATCHER(ignoringImplicit);
348   REGISTER_MATCHER(ignoringParenCasts);
349   REGISTER_MATCHER(ignoringParenImpCasts);
350   REGISTER_MATCHER(imaginaryLiteral);
351   REGISTER_MATCHER(implicitCastExpr);
352   REGISTER_MATCHER(implicitValueInitExpr);
353   REGISTER_MATCHER(incompleteArrayType);
354   REGISTER_MATCHER(indirectFieldDecl);
355   REGISTER_MATCHER(initListExpr);
356   REGISTER_MATCHER(injectedClassNameType);
357   REGISTER_MATCHER(innerType);
358   REGISTER_MATCHER(integerLiteral);
359   REGISTER_MATCHER(isAllowedToContainClauseKind);
360   REGISTER_MATCHER(isAnonymous);
361   REGISTER_MATCHER(isAnyCharacter);
362   REGISTER_MATCHER(isAnyPointer);
363   REGISTER_MATCHER(isArray);
364   REGISTER_MATCHER(isArrow);
365   REGISTER_MATCHER(isAssignmentOperator);
366   REGISTER_MATCHER(isAtPosition);
367   REGISTER_MATCHER(isBaseInitializer);
368   REGISTER_MATCHER(isBitField);
369   REGISTER_MATCHER(isCatchAll);
370   REGISTER_MATCHER(isClass);
371   REGISTER_MATCHER(isClassMessage);
372   REGISTER_MATCHER(isClassMethod);
373   REGISTER_MATCHER(isComparisonOperator);
374   REGISTER_MATCHER(isConst);
375   REGISTER_MATCHER(isConstQualified);
376   REGISTER_MATCHER(isConstexpr);
377   REGISTER_MATCHER(isCopyAssignmentOperator);
378   REGISTER_MATCHER(isCopyConstructor);
379   REGISTER_MATCHER(isDefaultConstructor);
380   REGISTER_MATCHER(isDefaulted);
381   REGISTER_MATCHER(isDefinition);
382   REGISTER_MATCHER(isDelegatingConstructor);
383   REGISTER_MATCHER(isDeleted);
384   REGISTER_MATCHER(isEnum);
385   REGISTER_MATCHER(isExceptionVariable);
386   REGISTER_MATCHER(isExpandedFromMacro);
387   REGISTER_MATCHER(isExpansionInMainFile);
388   REGISTER_MATCHER(isExpansionInSystemHeader);
389   REGISTER_MATCHER(isExplicit);
390   REGISTER_MATCHER(isExplicitTemplateSpecialization);
391   REGISTER_MATCHER(isExpr);
392   REGISTER_MATCHER(isExternC);
393   REGISTER_MATCHER(isFinal);
394   REGISTER_MATCHER(isFirstPrivateKind);
395   REGISTER_MATCHER(isImplicit);
396   REGISTER_MATCHER(isInStdNamespace);
397   REGISTER_MATCHER(isInTemplateInstantiation);
398   REGISTER_MATCHER(isInline);
399   REGISTER_MATCHER(isInstanceMessage);
400   REGISTER_MATCHER(isInstanceMethod);
401   REGISTER_MATCHER(isInstantiated);
402   REGISTER_MATCHER(isInstantiationDependent);
403   REGISTER_MATCHER(isInteger);
404   REGISTER_MATCHER(isIntegral);
405   REGISTER_MATCHER(isLambda);
406   REGISTER_MATCHER(isListInitialization);
407   REGISTER_MATCHER(isMain);
408   REGISTER_MATCHER(isMemberInitializer);
409   REGISTER_MATCHER(isMoveAssignmentOperator);
410   REGISTER_MATCHER(isMoveConstructor);
411   REGISTER_MATCHER(isNoReturn);
412   REGISTER_MATCHER(isNoThrow);
413   REGISTER_MATCHER(isNoneKind);
414   REGISTER_MATCHER(isOverride);
415   REGISTER_MATCHER(isPrivate);
416   REGISTER_MATCHER(isProtected);
417   REGISTER_MATCHER(isPublic);
418   REGISTER_MATCHER(isPure);
419   REGISTER_MATCHER(isScoped);
420   REGISTER_MATCHER(isSharedKind);
421   REGISTER_MATCHER(isSignedInteger);
422   REGISTER_MATCHER(isStandaloneDirective);
423   REGISTER_MATCHER(isStaticLocal);
424   REGISTER_MATCHER(isStaticStorageClass);
425   REGISTER_MATCHER(isStruct);
426   REGISTER_MATCHER(isTemplateInstantiation);
427   REGISTER_MATCHER(isTypeDependent);
428   REGISTER_MATCHER(isUnion);
429   REGISTER_MATCHER(isUnsignedInteger);
430   REGISTER_MATCHER(isUserProvided);
431   REGISTER_MATCHER(isValueDependent);
432   REGISTER_MATCHER(isVariadic);
433   REGISTER_MATCHER(isVirtual);
434   REGISTER_MATCHER(isVirtualAsWritten);
435   REGISTER_MATCHER(isVolatileQualified);
436   REGISTER_MATCHER(isWritten);
437   REGISTER_MATCHER(lValueReferenceType);
438   REGISTER_MATCHER(labelDecl);
439   REGISTER_MATCHER(labelStmt);
440   REGISTER_MATCHER(lambdaExpr);
441   REGISTER_MATCHER(linkageSpecDecl);
442   REGISTER_MATCHER(materializeTemporaryExpr);
443   REGISTER_MATCHER(member);
444   REGISTER_MATCHER(memberExpr);
445   REGISTER_MATCHER(memberPointerType);
446   REGISTER_MATCHER(namedDecl);
447   REGISTER_MATCHER(namesType);
448   REGISTER_MATCHER(namespaceAliasDecl);
449   REGISTER_MATCHER(namespaceDecl);
450   REGISTER_MATCHER(nestedNameSpecifier);
451   REGISTER_MATCHER(nestedNameSpecifierLoc);
452   REGISTER_MATCHER(nonTypeTemplateParmDecl);
453   REGISTER_MATCHER(nullPointerConstant);
454   REGISTER_MATCHER(nullStmt);
455   REGISTER_MATCHER(numSelectorArgs);
456   REGISTER_MATCHER(objcCatchStmt);
457   REGISTER_MATCHER(objcCategoryDecl);
458   REGISTER_MATCHER(objcCategoryImplDecl);
459   REGISTER_MATCHER(objcFinallyStmt);
460   REGISTER_MATCHER(objcImplementationDecl);
461   REGISTER_MATCHER(objcInterfaceDecl);
462   REGISTER_MATCHER(objcIvarDecl);
463   REGISTER_MATCHER(objcIvarRefExpr);
464   REGISTER_MATCHER(objcMessageExpr);
465   REGISTER_MATCHER(objcMethodDecl);
466   REGISTER_MATCHER(objcObjectPointerType);
467   REGISTER_MATCHER(objcPropertyDecl);
468   REGISTER_MATCHER(objcProtocolDecl);
469   REGISTER_MATCHER(objcThrowStmt);
470   REGISTER_MATCHER(objcTryStmt);
471   REGISTER_MATCHER(ofClass);
472   REGISTER_MATCHER(ofKind);
473   REGISTER_MATCHER(ompDefaultClause);
474   REGISTER_MATCHER(ompExecutableDirective);
475   REGISTER_MATCHER(on);
476   REGISTER_MATCHER(onImplicitObjectArgument);
477   REGISTER_MATCHER(opaqueValueExpr);
478   REGISTER_MATCHER(optionally);
479   REGISTER_MATCHER(parameterCountIs);
480   REGISTER_MATCHER(parenExpr);
481   REGISTER_MATCHER(parenListExpr);
482   REGISTER_MATCHER(parenType);
483   REGISTER_MATCHER(parmVarDecl);
484   REGISTER_MATCHER(pointee);
485   REGISTER_MATCHER(pointerType);
486   REGISTER_MATCHER(predefinedExpr);
487   REGISTER_MATCHER(qualType);
488   REGISTER_MATCHER(rValueReferenceType);
489   REGISTER_MATCHER(realFloatingPointType);
490   REGISTER_MATCHER(recordDecl);
491   REGISTER_MATCHER(recordType);
492   REGISTER_MATCHER(referenceType);
493   REGISTER_MATCHER(refersToDeclaration);
494   REGISTER_MATCHER(refersToIntegralType);
495   REGISTER_MATCHER(refersToTemplate);
496   REGISTER_MATCHER(refersToType);
497   REGISTER_MATCHER(requiresZeroInitialization);
498   REGISTER_MATCHER(returnStmt);
499   REGISTER_MATCHER(returns);
500   REGISTER_MATCHER(sizeOfExpr);
501   REGISTER_MATCHER(specifiesNamespace);
502   REGISTER_MATCHER(specifiesType);
503   REGISTER_MATCHER(specifiesTypeLoc);
504   REGISTER_MATCHER(statementCountIs);
505   REGISTER_MATCHER(staticAssertDecl);
506   REGISTER_MATCHER(stmt);
507   REGISTER_MATCHER(stmtExpr);
508   REGISTER_MATCHER(stringLiteral);
509   REGISTER_MATCHER(substNonTypeTemplateParmExpr);
510   REGISTER_MATCHER(substTemplateTypeParmType);
511   REGISTER_MATCHER(switchCase);
512   REGISTER_MATCHER(switchStmt);
513   REGISTER_MATCHER(tagDecl);
514   REGISTER_MATCHER(tagType);
515   REGISTER_MATCHER(templateArgument);
516   REGISTER_MATCHER(templateArgumentCountIs);
517   REGISTER_MATCHER(templateName);
518   REGISTER_MATCHER(templateSpecializationType);
519   REGISTER_MATCHER(templateTemplateParmDecl);
520   REGISTER_MATCHER(templateTypeParmDecl);
521   REGISTER_MATCHER(templateTypeParmType);
522   REGISTER_MATCHER(throughUsingDecl);
523   REGISTER_MATCHER(to);
524   REGISTER_MATCHER(translationUnitDecl);
525   REGISTER_MATCHER(type);
526   REGISTER_MATCHER(typeAliasDecl);
527   REGISTER_MATCHER(typeAliasTemplateDecl);
528   REGISTER_MATCHER(typeLoc);
529   REGISTER_MATCHER(typedefDecl);
530   REGISTER_MATCHER(typedefNameDecl);
531   REGISTER_MATCHER(typedefType);
532   REGISTER_MATCHER(unaryExprOrTypeTraitExpr);
533   REGISTER_MATCHER(unaryOperator);
534   REGISTER_MATCHER(unaryTransformType);
535   REGISTER_MATCHER(unless);
536   REGISTER_MATCHER(unresolvedLookupExpr);
537   REGISTER_MATCHER(unresolvedMemberExpr);
538   REGISTER_MATCHER(unresolvedUsingTypenameDecl);
539   REGISTER_MATCHER(unresolvedUsingValueDecl);
540   REGISTER_MATCHER(userDefinedLiteral);
541   REGISTER_MATCHER(usesADL);
542   REGISTER_MATCHER(usingDecl);
543   REGISTER_MATCHER(usingDirectiveDecl);
544   REGISTER_MATCHER(valueDecl);
545   REGISTER_MATCHER(varDecl);
546   REGISTER_MATCHER(variableArrayType);
547   REGISTER_MATCHER(voidType);
548   REGISTER_MATCHER(whileStmt);
549   REGISTER_MATCHER(withInitializer);
550 }
551
552 RegistryMaps::~RegistryMaps() = default;
553
554 static llvm::ManagedStatic<RegistryMaps> RegistryData;
555
556 // static
557 llvm::Optional<MatcherCtor> Registry::lookupMatcherCtor(StringRef MatcherName) {
558   auto it = RegistryData->constructors().find(MatcherName);
559   return it == RegistryData->constructors().end()
560              ? llvm::Optional<MatcherCtor>()
561              : it->second.get();
562 }
563
564 static llvm::raw_ostream &operator<<(llvm::raw_ostream &OS,
565                                      const std::set<ASTNodeKind> &KS) {
566   unsigned Count = 0;
567   for (std::set<ASTNodeKind>::const_iterator I = KS.begin(), E = KS.end();
568        I != E; ++I) {
569     if (I != KS.begin())
570       OS << "|";
571     if (Count++ == 3) {
572       OS << "...";
573       break;
574     }
575     OS << *I;
576   }
577   return OS;
578 }
579
580 std::vector<ArgKind> Registry::getAcceptedCompletionTypes(
581     ArrayRef<std::pair<MatcherCtor, unsigned>> Context) {
582   ASTNodeKind InitialTypes[] = {
583       ASTNodeKind::getFromNodeKind<Decl>(),
584       ASTNodeKind::getFromNodeKind<QualType>(),
585       ASTNodeKind::getFromNodeKind<Type>(),
586       ASTNodeKind::getFromNodeKind<Stmt>(),
587       ASTNodeKind::getFromNodeKind<NestedNameSpecifier>(),
588       ASTNodeKind::getFromNodeKind<NestedNameSpecifierLoc>(),
589       ASTNodeKind::getFromNodeKind<TypeLoc>()};
590
591   // Starting with the above seed of acceptable top-level matcher types, compute
592   // the acceptable type set for the argument indicated by each context element.
593   std::set<ArgKind> TypeSet(std::begin(InitialTypes), std::end(InitialTypes));
594   for (const auto &CtxEntry : Context) {
595     MatcherCtor Ctor = CtxEntry.first;
596     unsigned ArgNumber = CtxEntry.second;
597     std::vector<ArgKind> NextTypeSet;
598     for (const ArgKind &Kind : TypeSet) {
599       if (Kind.getArgKind() == Kind.AK_Matcher &&
600           Ctor->isConvertibleTo(Kind.getMatcherKind()) &&
601           (Ctor->isVariadic() || ArgNumber < Ctor->getNumArgs()))
602         Ctor->getArgKinds(Kind.getMatcherKind(), ArgNumber, NextTypeSet);
603     }
604     TypeSet.clear();
605     TypeSet.insert(NextTypeSet.begin(), NextTypeSet.end());
606   }
607   return std::vector<ArgKind>(TypeSet.begin(), TypeSet.end());
608 }
609
610 std::vector<MatcherCompletion>
611 Registry::getMatcherCompletions(ArrayRef<ArgKind> AcceptedTypes) {
612   std::vector<MatcherCompletion> Completions;
613
614   // Search the registry for acceptable matchers.
615   for (const auto &M : RegistryData->constructors()) {
616     const MatcherDescriptor& Matcher = *M.getValue();
617     StringRef Name = M.getKey();
618
619     std::set<ASTNodeKind> RetKinds;
620     unsigned NumArgs = Matcher.isVariadic() ? 1 : Matcher.getNumArgs();
621     bool IsPolymorphic = Matcher.isPolymorphic();
622     std::vector<std::vector<ArgKind>> ArgsKinds(NumArgs);
623     unsigned MaxSpecificity = 0;
624     for (const ArgKind& Kind : AcceptedTypes) {
625       if (Kind.getArgKind() != Kind.AK_Matcher)
626         continue;
627       unsigned Specificity;
628       ASTNodeKind LeastDerivedKind;
629       if (Matcher.isConvertibleTo(Kind.getMatcherKind(), &Specificity,
630                                   &LeastDerivedKind)) {
631         if (MaxSpecificity < Specificity)
632           MaxSpecificity = Specificity;
633         RetKinds.insert(LeastDerivedKind);
634         for (unsigned Arg = 0; Arg != NumArgs; ++Arg)
635           Matcher.getArgKinds(Kind.getMatcherKind(), Arg, ArgsKinds[Arg]);
636         if (IsPolymorphic)
637           break;
638       }
639     }
640
641     if (!RetKinds.empty() && MaxSpecificity > 0) {
642       std::string Decl;
643       llvm::raw_string_ostream OS(Decl);
644
645       if (IsPolymorphic) {
646         OS << "Matcher<T> " << Name << "(Matcher<T>";
647       } else {
648         OS << "Matcher<" << RetKinds << "> " << Name << "(";
649         for (const std::vector<ArgKind> &Arg : ArgsKinds) {
650           if (&Arg != &ArgsKinds[0])
651             OS << ", ";
652
653           bool FirstArgKind = true;
654           std::set<ASTNodeKind> MatcherKinds;
655           // Two steps. First all non-matchers, then matchers only.
656           for (const ArgKind &AK : Arg) {
657             if (AK.getArgKind() == ArgKind::AK_Matcher) {
658               MatcherKinds.insert(AK.getMatcherKind());
659             } else {
660               if (!FirstArgKind) OS << "|";
661               FirstArgKind = false;
662               OS << AK.asString();
663             }
664           }
665           if (!MatcherKinds.empty()) {
666             if (!FirstArgKind) OS << "|";
667             OS << "Matcher<" << MatcherKinds << ">";
668           }
669         }
670       }
671       if (Matcher.isVariadic())
672         OS << "...";
673       OS << ")";
674
675       std::string TypedText = std::string(Name);
676       TypedText += "(";
677       if (ArgsKinds.empty())
678         TypedText += ")";
679       else if (ArgsKinds[0][0].getArgKind() == ArgKind::AK_String)
680         TypedText += "\"";
681
682       Completions.emplace_back(TypedText, OS.str(), MaxSpecificity);
683     }
684   }
685
686   return Completions;
687 }
688
689 VariantMatcher Registry::constructMatcher(MatcherCtor Ctor,
690                                           SourceRange NameRange,
691                                           ArrayRef<ParserValue> Args,
692                                           Diagnostics *Error) {
693   return Ctor->create(NameRange, Args, Error);
694 }
695
696 VariantMatcher Registry::constructBoundMatcher(MatcherCtor Ctor,
697                                                SourceRange NameRange,
698                                                StringRef BindID,
699                                                ArrayRef<ParserValue> Args,
700                                                Diagnostics *Error) {
701   VariantMatcher Out = constructMatcher(Ctor, NameRange, Args, Error);
702   if (Out.isNull()) return Out;
703
704   llvm::Optional<DynTypedMatcher> Result = Out.getSingleMatcher();
705   if (Result.hasValue()) {
706     llvm::Optional<DynTypedMatcher> Bound = Result->tryBind(BindID);
707     if (Bound.hasValue()) {
708       return VariantMatcher::SingleMatcher(*Bound);
709     }
710   }
711   Error->addError(NameRange, Error->ET_RegistryNotBindable);
712   return VariantMatcher();
713 }
714
715 } // namespace dynamic
716 } // namespace ast_matchers
717 } // namespace clang