1182 lines
		
	
	
		
			42 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			1182 lines
		
	
	
		
			42 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===- Marshallers.h - Generic matcher function marshallers -----*- C++ -*-===//
 | |
| //
 | |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 | |
| // See https://llvm.org/LICENSE.txt for license information.
 | |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 | |
| //
 | |
| //===----------------------------------------------------------------------===//
 | |
| //
 | |
| /// \file
 | |
| /// Functions templates and classes to wrap matcher construct functions.
 | |
| ///
 | |
| /// A collection of template function and classes that provide a generic
 | |
| /// marshalling layer on top of matcher construct functions.
 | |
| /// These are used by the registry to export all marshaller constructors with
 | |
| /// the same generic interface.
 | |
| //
 | |
| //===----------------------------------------------------------------------===//
 | |
| 
 | |
| #ifndef LLVM_CLANG_LIB_ASTMATCHERS_DYNAMIC_MARSHALLERS_H
 | |
| #define LLVM_CLANG_LIB_ASTMATCHERS_DYNAMIC_MARSHALLERS_H
 | |
| 
 | |
| #include "clang/AST/ASTTypeTraits.h"
 | |
| #include "clang/AST/OperationKinds.h"
 | |
| #include "clang/ASTMatchers/ASTMatchersInternal.h"
 | |
| #include "clang/ASTMatchers/Dynamic/Diagnostics.h"
 | |
| #include "clang/ASTMatchers/Dynamic/VariantValue.h"
 | |
| #include "clang/Basic/AttrKinds.h"
 | |
| #include "clang/Basic/LLVM.h"
 | |
| #include "clang/Basic/OpenMPKinds.h"
 | |
| #include "clang/Basic/TypeTraits.h"
 | |
| #include "llvm/ADT/ArrayRef.h"
 | |
| #include "llvm/ADT/None.h"
 | |
| #include "llvm/ADT/Optional.h"
 | |
| #include "llvm/ADT/STLExtras.h"
 | |
| #include "llvm/ADT/StringRef.h"
 | |
| #include "llvm/ADT/StringSwitch.h"
 | |
| #include "llvm/ADT/Twine.h"
 | |
| #include "llvm/Support/Regex.h"
 | |
| #include <cassert>
 | |
| #include <cstddef>
 | |
| #include <iterator>
 | |
| #include <limits>
 | |
| #include <memory>
 | |
| #include <string>
 | |
| #include <utility>
 | |
| #include <vector>
 | |
| 
 | |
| namespace clang {
 | |
| namespace ast_matchers {
 | |
| namespace dynamic {
 | |
| namespace internal {
 | |
| 
 | |
| /// Helper template class to just from argument type to the right is/get
 | |
| ///   functions in VariantValue.
 | |
| /// Used to verify and extract the matcher arguments below.
 | |
| template <class T> struct ArgTypeTraits;
 | |
| template <class T> struct ArgTypeTraits<const T &> : public ArgTypeTraits<T> {
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<std::string> {
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isString();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue &Value) { return true; }
 | |
| 
 | |
|   static const std::string &get(const VariantValue &Value) {
 | |
|     return Value.getString();
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() {
 | |
|     return ArgKind(ArgKind::AK_String);
 | |
|   }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &) {
 | |
|     return llvm::None;
 | |
|   }
 | |
| };
 | |
| 
 | |
| template <>
 | |
| struct ArgTypeTraits<StringRef> : public ArgTypeTraits<std::string> {
 | |
| };
 | |
| 
 | |
| template <class T> struct ArgTypeTraits<ast_matchers::internal::Matcher<T>> {
 | |
|   static bool hasCorrectType(const VariantValue& Value) {
 | |
|     return Value.isMatcher();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue &Value) {
 | |
|     return Value.getMatcher().hasTypedMatcher<T>();
 | |
|   }
 | |
| 
 | |
|   static ast_matchers::internal::Matcher<T> get(const VariantValue &Value) {
 | |
|     return Value.getMatcher().getTypedMatcher<T>();
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() {
 | |
|     return ArgKind::MakeMatcherArg(ASTNodeKind::getFromNodeKind<T>());
 | |
|   }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &) {
 | |
|     return llvm::None;
 | |
|   }
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<bool> {
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isBoolean();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue &Value) { return true; }
 | |
| 
 | |
|   static bool get(const VariantValue &Value) {
 | |
|     return Value.getBoolean();
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() {
 | |
|     return ArgKind(ArgKind::AK_Boolean);
 | |
|   }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &) {
 | |
|     return llvm::None;
 | |
|   }
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<double> {
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isDouble();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue &Value) { return true; }
 | |
| 
 | |
|   static double get(const VariantValue &Value) {
 | |
|     return Value.getDouble();
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() {
 | |
|     return ArgKind(ArgKind::AK_Double);
 | |
|   }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &) {
 | |
|     return llvm::None;
 | |
|   }
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<unsigned> {
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isUnsigned();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue &Value) { return true; }
 | |
| 
 | |
|   static unsigned get(const VariantValue &Value) {
 | |
|     return Value.getUnsigned();
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() {
 | |
|     return ArgKind(ArgKind::AK_Unsigned);
 | |
|   }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &) {
 | |
|     return llvm::None;
 | |
|   }
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<attr::Kind> {
 | |
| private:
 | |
|   static Optional<attr::Kind> getAttrKind(llvm::StringRef AttrKind) {
 | |
|     if (!AttrKind.consume_front("attr::"))
 | |
|       return llvm::None;
 | |
|     return llvm::StringSwitch<Optional<attr::Kind>>(AttrKind)
 | |
| #define ATTR(X) .Case(#X, attr::X)
 | |
| #include "clang/Basic/AttrList.inc"
 | |
|         .Default(llvm::None);
 | |
|   }
 | |
| 
 | |
| public:
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isString();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue& Value) {
 | |
|     return getAttrKind(Value.getString()).hasValue();
 | |
|   }
 | |
| 
 | |
|   static attr::Kind get(const VariantValue &Value) {
 | |
|     return *getAttrKind(Value.getString());
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() {
 | |
|     return ArgKind(ArgKind::AK_String);
 | |
|   }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &Value);
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<CastKind> {
 | |
| private:
 | |
|   static Optional<CastKind> getCastKind(llvm::StringRef AttrKind) {
 | |
|     if (!AttrKind.consume_front("CK_"))
 | |
|       return llvm::None;
 | |
|     return llvm::StringSwitch<Optional<CastKind>>(AttrKind)
 | |
| #define CAST_OPERATION(Name) .Case(#Name, CK_##Name)
 | |
| #include "clang/AST/OperationKinds.def"
 | |
|         .Default(llvm::None);
 | |
|   }
 | |
| 
 | |
| public:
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isString();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue& Value) {
 | |
|     return getCastKind(Value.getString()).hasValue();
 | |
|   }
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| 
 | |
|   static CastKind get(const VariantValue &Value) {
 | |
|     return *getCastKind(Value.getString());
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() {
 | |
|     return ArgKind(ArgKind::AK_String);
 | |
|   }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &Value);
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<llvm::Regex::RegexFlags> {
 | |
| private:
 | |
|   static Optional<llvm::Regex::RegexFlags> getFlags(llvm::StringRef Flags);
 | |
| 
 | |
| public:
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isString();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue& Value) {
 | |
|     return getFlags(Value.getString()).hasValue();
 | |
|   }
 | |
| 
 | |
|   static llvm::Regex::RegexFlags get(const VariantValue &Value) {
 | |
|     return *getFlags(Value.getString());
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() { return ArgKind(ArgKind::AK_String); }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &Value);
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<OpenMPClauseKind> {
 | |
| private:
 | |
|   static Optional<OpenMPClauseKind> getClauseKind(llvm::StringRef ClauseKind) {
 | |
|     return llvm::StringSwitch<Optional<OpenMPClauseKind>>(ClauseKind)
 | |
| #define GEN_CLANG_CLAUSE_CLASS
 | |
| #define CLAUSE_CLASS(Enum, Str, Class) .Case(#Enum, llvm::omp::Clause::Enum)
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| #include "llvm/Frontend/OpenMP/OMP.inc"
 | |
|         .Default(llvm::None);
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|   }
 | |
| 
 | |
| public:
 | |
|   static bool hasCorrectType(const VariantValue &Value) {
 | |
|     return Value.isString();
 | |
|   }
 | |
|   static bool hasCorrectValue(const VariantValue& Value) {
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|     return getClauseKind(Value.getString()).hasValue();
 | |
|   }
 | |
| 
 | |
|   static OpenMPClauseKind get(const VariantValue &Value) {
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|     return *getClauseKind(Value.getString());
 | |
|   }
 | |
| 
 | |
|   static ArgKind getKind() { return ArgKind(ArgKind::AK_String); }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &Value);
 | |
| };
 | |
| 
 | |
| template <> struct ArgTypeTraits<UnaryExprOrTypeTrait> {
 | |
| private:
 | |
|   static Optional<UnaryExprOrTypeTrait>
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|   getUnaryOrTypeTraitKind(llvm::StringRef ClauseKind) {
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|     if (!ClauseKind.consume_front("UETT_"))
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|       return llvm::None;
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|     return llvm::StringSwitch<Optional<UnaryExprOrTypeTrait>>(ClauseKind)
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| #define UNARY_EXPR_OR_TYPE_TRAIT(Spelling, Name, Key) .Case(#Name, UETT_##Name)
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| #define CXX11_UNARY_EXPR_OR_TYPE_TRAIT(Spelling, Name, Key)                    \
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|   .Case(#Name, UETT_##Name)
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| #include "clang/Basic/TokenKinds.def"
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|         .Default(llvm::None);
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|   }
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| 
 | |
| public:
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|   static bool hasCorrectType(const VariantValue &Value) {
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|     return Value.isString();
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|   }
 | |
|   static bool hasCorrectValue(const VariantValue& Value) {
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|     return getUnaryOrTypeTraitKind(Value.getString()).hasValue();
 | |
|   }
 | |
| 
 | |
|   static UnaryExprOrTypeTrait get(const VariantValue &Value) {
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|     return *getUnaryOrTypeTraitKind(Value.getString());
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|   }
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| 
 | |
|   static ArgKind getKind() { return ArgKind(ArgKind::AK_String); }
 | |
| 
 | |
|   static llvm::Optional<std::string> getBestGuess(const VariantValue &Value);
 | |
| };
 | |
| 
 | |
| /// Matcher descriptor interface.
 | |
| ///
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| /// Provides a \c create() method that constructs the matcher from the provided
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| /// arguments, and various other methods for type introspection.
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| class MatcherDescriptor {
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| public:
 | |
|   virtual ~MatcherDescriptor() = default;
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| 
 | |
|   virtual VariantMatcher create(SourceRange NameRange,
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|                                 ArrayRef<ParserValue> Args,
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|                                 Diagnostics *Error) const = 0;
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| 
 | |
|   virtual ASTNodeKind nodeMatcherType() const { return ASTNodeKind(); }
 | |
| 
 | |
|   virtual bool isBuilderMatcher() const { return false; }
 | |
| 
 | |
|   virtual std::unique_ptr<MatcherDescriptor>
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|   buildMatcherCtor(SourceRange NameRange, ArrayRef<ParserValue> Args,
 | |
|                    Diagnostics *Error) const {
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|     return {};
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|   }
 | |
| 
 | |
|   /// Returns whether the matcher is variadic. Variadic matchers can take any
 | |
|   /// number of arguments, but they must be of the same type.
 | |
|   virtual bool isVariadic() const = 0;
 | |
| 
 | |
|   /// Returns the number of arguments accepted by the matcher if not variadic.
 | |
|   virtual unsigned getNumArgs() const = 0;
 | |
| 
 | |
|   /// Given that the matcher is being converted to type \p ThisKind, append the
 | |
|   /// set of argument types accepted for argument \p ArgNo to \p ArgKinds.
 | |
|   // FIXME: We should provide the ability to constrain the output of this
 | |
|   // function based on the types of other matcher arguments.
 | |
|   virtual void getArgKinds(ASTNodeKind ThisKind, unsigned ArgNo,
 | |
|                            std::vector<ArgKind> &ArgKinds) const = 0;
 | |
| 
 | |
|   /// Returns whether this matcher is convertible to the given type.  If it is
 | |
|   /// so convertible, store in *Specificity a value corresponding to the
 | |
|   /// "specificity" of the converted matcher to the given context, and in
 | |
|   /// *LeastDerivedKind the least derived matcher kind which would result in the
 | |
|   /// same matcher overload.  Zero specificity indicates that this conversion
 | |
|   /// would produce a trivial matcher that will either always or never match.
 | |
|   /// Such matchers are excluded from code completion results.
 | |
|   virtual bool
 | |
|   isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity = nullptr,
 | |
|                   ASTNodeKind *LeastDerivedKind = nullptr) const = 0;
 | |
| 
 | |
|   /// Returns whether the matcher will, given a matcher of any type T, yield a
 | |
|   /// matcher of type T.
 | |
|   virtual bool isPolymorphic() const { return false; }
 | |
| };
 | |
| 
 | |
| inline bool isRetKindConvertibleTo(ArrayRef<ASTNodeKind> RetKinds,
 | |
|                                    ASTNodeKind Kind, unsigned *Specificity,
 | |
|                                    ASTNodeKind *LeastDerivedKind) {
 | |
|   for (const ASTNodeKind &NodeKind : RetKinds) {
 | |
|     if (ArgKind::MakeMatcherArg(NodeKind).isConvertibleTo(
 | |
|             ArgKind::MakeMatcherArg(Kind), Specificity)) {
 | |
|       if (LeastDerivedKind)
 | |
|         *LeastDerivedKind = NodeKind;
 | |
|       return true;
 | |
|     }
 | |
|   }
 | |
|   return false;
 | |
| }
 | |
| 
 | |
| /// Simple callback implementation. Marshaller and function are provided.
 | |
| ///
 | |
| /// This class wraps a function of arbitrary signature and a marshaller
 | |
| /// function into a MatcherDescriptor.
 | |
| /// The marshaller is in charge of taking the VariantValue arguments, checking
 | |
| /// their types, unpacking them and calling the underlying function.
 | |
| class FixedArgCountMatcherDescriptor : public MatcherDescriptor {
 | |
| public:
 | |
|   using MarshallerType = VariantMatcher (*)(void (*Func)(),
 | |
|                                             StringRef MatcherName,
 | |
|                                             SourceRange NameRange,
 | |
|                                             ArrayRef<ParserValue> Args,
 | |
|                                             Diagnostics *Error);
 | |
| 
 | |
|   /// \param Marshaller Function to unpack the arguments and call \c Func
 | |
|   /// \param Func Matcher construct function. This is the function that
 | |
|   ///   compile-time matcher expressions would use to create the matcher.
 | |
|   /// \param RetKinds The list of matcher types to which the matcher is
 | |
|   ///   convertible.
 | |
|   /// \param ArgKinds The types of the arguments this matcher takes.
 | |
|   FixedArgCountMatcherDescriptor(MarshallerType Marshaller, void (*Func)(),
 | |
|                                  StringRef MatcherName,
 | |
|                                  ArrayRef<ASTNodeKind> RetKinds,
 | |
|                                  ArrayRef<ArgKind> ArgKinds)
 | |
|       : Marshaller(Marshaller), Func(Func), MatcherName(MatcherName),
 | |
|         RetKinds(RetKinds.begin(), RetKinds.end()),
 | |
|         ArgKinds(ArgKinds.begin(), ArgKinds.end()) {}
 | |
| 
 | |
|   VariantMatcher create(SourceRange NameRange,
 | |
|                         ArrayRef<ParserValue> Args,
 | |
|                         Diagnostics *Error) const override {
 | |
|     return Marshaller(Func, MatcherName, NameRange, Args, Error);
 | |
|   }
 | |
| 
 | |
|   bool isVariadic() const override { return false; }
 | |
|   unsigned getNumArgs() const override { return ArgKinds.size(); }
 | |
| 
 | |
|   void getArgKinds(ASTNodeKind ThisKind, unsigned ArgNo,
 | |
|                    std::vector<ArgKind> &Kinds) const override {
 | |
|     Kinds.push_back(ArgKinds[ArgNo]);
 | |
|   }
 | |
| 
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity,
 | |
|                        ASTNodeKind *LeastDerivedKind) const override {
 | |
|     return isRetKindConvertibleTo(RetKinds, Kind, Specificity,
 | |
|                                   LeastDerivedKind);
 | |
|   }
 | |
| 
 | |
| private:
 | |
|   const MarshallerType Marshaller;
 | |
|   void (* const Func)();
 | |
|   const std::string MatcherName;
 | |
|   const std::vector<ASTNodeKind> RetKinds;
 | |
|   const std::vector<ArgKind> ArgKinds;
 | |
| };
 | |
| 
 | |
| /// Helper methods to extract and merge all possible typed matchers
 | |
| /// out of the polymorphic object.
 | |
| template <class PolyMatcher>
 | |
| static void mergePolyMatchers(const PolyMatcher &Poly,
 | |
|                               std::vector<DynTypedMatcher> &Out,
 | |
|                               ast_matchers::internal::EmptyTypeList) {}
 | |
| 
 | |
| template <class PolyMatcher, class TypeList>
 | |
| static void mergePolyMatchers(const PolyMatcher &Poly,
 | |
|                               std::vector<DynTypedMatcher> &Out, TypeList) {
 | |
|   Out.push_back(ast_matchers::internal::Matcher<typename TypeList::head>(Poly));
 | |
|   mergePolyMatchers(Poly, Out, typename TypeList::tail());
 | |
| }
 | |
| 
 | |
| /// Convert the return values of the functions into a VariantMatcher.
 | |
| ///
 | |
| /// There are 2 cases right now: The return value is a Matcher<T> or is a
 | |
| /// polymorphic matcher. For the former, we just construct the VariantMatcher.
 | |
| /// For the latter, we instantiate all the possible Matcher<T> of the poly
 | |
| /// matcher.
 | |
| inline VariantMatcher outvalueToVariantMatcher(const DynTypedMatcher &Matcher) {
 | |
|   return VariantMatcher::SingleMatcher(Matcher);
 | |
| }
 | |
| 
 | |
| template <typename T>
 | |
| static VariantMatcher outvalueToVariantMatcher(const T &PolyMatcher,
 | |
|                                                typename T::ReturnTypes * =
 | |
|                                                    nullptr) {
 | |
|   std::vector<DynTypedMatcher> Matchers;
 | |
|   mergePolyMatchers(PolyMatcher, Matchers, typename T::ReturnTypes());
 | |
|   VariantMatcher Out = VariantMatcher::PolymorphicMatcher(std::move(Matchers));
 | |
|   return Out;
 | |
| }
 | |
| 
 | |
| template <typename T>
 | |
| inline void
 | |
| buildReturnTypeVectorFromTypeList(std::vector<ASTNodeKind> &RetTypes) {
 | |
|   RetTypes.push_back(ASTNodeKind::getFromNodeKind<typename T::head>());
 | |
|   buildReturnTypeVectorFromTypeList<typename T::tail>(RetTypes);
 | |
| }
 | |
| 
 | |
| template <>
 | |
| inline void
 | |
| buildReturnTypeVectorFromTypeList<ast_matchers::internal::EmptyTypeList>(
 | |
|     std::vector<ASTNodeKind> &RetTypes) {}
 | |
| 
 | |
| template <typename T>
 | |
| struct BuildReturnTypeVector {
 | |
|   static void build(std::vector<ASTNodeKind> &RetTypes) {
 | |
|     buildReturnTypeVectorFromTypeList<typename T::ReturnTypes>(RetTypes);
 | |
|   }
 | |
| };
 | |
| 
 | |
| template <typename T>
 | |
| struct BuildReturnTypeVector<ast_matchers::internal::Matcher<T>> {
 | |
|   static void build(std::vector<ASTNodeKind> &RetTypes) {
 | |
|     RetTypes.push_back(ASTNodeKind::getFromNodeKind<T>());
 | |
|   }
 | |
| };
 | |
| 
 | |
| template <typename T>
 | |
| struct BuildReturnTypeVector<ast_matchers::internal::BindableMatcher<T>> {
 | |
|   static void build(std::vector<ASTNodeKind> &RetTypes) {
 | |
|     RetTypes.push_back(ASTNodeKind::getFromNodeKind<T>());
 | |
|   }
 | |
| };
 | |
| 
 | |
| /// Variadic marshaller function.
 | |
| template <typename ResultT, typename ArgT,
 | |
|           ResultT (*Func)(ArrayRef<const ArgT *>)>
 | |
| VariantMatcher
 | |
| variadicMatcherDescriptor(StringRef MatcherName, SourceRange NameRange,
 | |
|                           ArrayRef<ParserValue> Args, Diagnostics *Error) {
 | |
|   ArgT **InnerArgs = new ArgT *[Args.size()]();
 | |
| 
 | |
|   bool HasError = false;
 | |
|   for (size_t i = 0, e = Args.size(); i != e; ++i) {
 | |
|     using ArgTraits = ArgTypeTraits<ArgT>;
 | |
| 
 | |
|     const ParserValue &Arg = Args[i];
 | |
|     const VariantValue &Value = Arg.Value;
 | |
|     if (!ArgTraits::hasCorrectType(Value)) {
 | |
|       Error->addError(Arg.Range, Error->ET_RegistryWrongArgType)
 | |
|           << (i + 1) << ArgTraits::getKind().asString() << Value.getTypeAsString();
 | |
|       HasError = true;
 | |
|       break;
 | |
|     }
 | |
|     if (!ArgTraits::hasCorrectValue(Value)) {
 | |
|       if (llvm::Optional<std::string> BestGuess =
 | |
|               ArgTraits::getBestGuess(Value)) {
 | |
|         Error->addError(Arg.Range, Error->ET_RegistryUnknownEnumWithReplace)
 | |
|             << i + 1 << Value.getString() << *BestGuess;
 | |
|       } else if (Value.isString()) {
 | |
|         Error->addError(Arg.Range, Error->ET_RegistryValueNotFound)
 | |
|             << Value.getString();
 | |
|       } else {
 | |
|         // This isn't ideal, but it's better than reporting an empty string as
 | |
|         // the error in this case.
 | |
|         Error->addError(Arg.Range, Error->ET_RegistryWrongArgType)
 | |
|             << (i + 1) << ArgTraits::getKind().asString()
 | |
|             << Value.getTypeAsString();
 | |
|       }
 | |
|       HasError = true;
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     InnerArgs[i] = new ArgT(ArgTraits::get(Value));
 | |
|   }
 | |
| 
 | |
|   VariantMatcher Out;
 | |
|   if (!HasError) {
 | |
|     Out = outvalueToVariantMatcher(Func(llvm::makeArrayRef(InnerArgs,
 | |
|                                                            Args.size())));
 | |
|   }
 | |
| 
 | |
|   for (size_t i = 0, e = Args.size(); i != e; ++i) {
 | |
|     delete InnerArgs[i];
 | |
|   }
 | |
|   delete[] InnerArgs;
 | |
|   return Out;
 | |
| }
 | |
| 
 | |
| /// Matcher descriptor for variadic functions.
 | |
| ///
 | |
| /// This class simply wraps a VariadicFunction with the right signature to export
 | |
| /// it as a MatcherDescriptor.
 | |
| /// This allows us to have one implementation of the interface for as many free
 | |
| /// functions as we want, reducing the number of symbols and size of the
 | |
| /// object file.
 | |
| class VariadicFuncMatcherDescriptor : public MatcherDescriptor {
 | |
| public:
 | |
|   using RunFunc = VariantMatcher (*)(StringRef MatcherName,
 | |
|                                      SourceRange NameRange,
 | |
|                                      ArrayRef<ParserValue> Args,
 | |
|                                      Diagnostics *Error);
 | |
| 
 | |
|   template <typename ResultT, typename ArgT,
 | |
|             ResultT (*F)(ArrayRef<const ArgT *>)>
 | |
|   VariadicFuncMatcherDescriptor(
 | |
|       ast_matchers::internal::VariadicFunction<ResultT, ArgT, F> Func,
 | |
|       StringRef MatcherName)
 | |
|       : Func(&variadicMatcherDescriptor<ResultT, ArgT, F>),
 | |
|         MatcherName(MatcherName.str()),
 | |
|         ArgsKind(ArgTypeTraits<ArgT>::getKind()) {
 | |
|     BuildReturnTypeVector<ResultT>::build(RetKinds);
 | |
|   }
 | |
| 
 | |
|   VariantMatcher create(SourceRange NameRange,
 | |
|                         ArrayRef<ParserValue> Args,
 | |
|                         Diagnostics *Error) const override {
 | |
|     return Func(MatcherName, NameRange, Args, Error);
 | |
|   }
 | |
| 
 | |
|   bool isVariadic() const override { return true; }
 | |
|   unsigned getNumArgs() const override { return 0; }
 | |
| 
 | |
|   void getArgKinds(ASTNodeKind ThisKind, unsigned ArgNo,
 | |
|                    std::vector<ArgKind> &Kinds) const override {
 | |
|     Kinds.push_back(ArgsKind);
 | |
|   }
 | |
| 
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity,
 | |
|                        ASTNodeKind *LeastDerivedKind) const override {
 | |
|     return isRetKindConvertibleTo(RetKinds, Kind, Specificity,
 | |
|                                   LeastDerivedKind);
 | |
|   }
 | |
| 
 | |
|   ASTNodeKind nodeMatcherType() const override { return RetKinds[0]; }
 | |
| 
 | |
| private:
 | |
|   const RunFunc Func;
 | |
|   const std::string MatcherName;
 | |
|   std::vector<ASTNodeKind> RetKinds;
 | |
|   const ArgKind ArgsKind;
 | |
| };
 | |
| 
 | |
| /// Return CK_Trivial when appropriate for VariadicDynCastAllOfMatchers.
 | |
| class DynCastAllOfMatcherDescriptor : public VariadicFuncMatcherDescriptor {
 | |
| public:
 | |
|   template <typename BaseT, typename DerivedT>
 | |
|   DynCastAllOfMatcherDescriptor(
 | |
|       ast_matchers::internal::VariadicDynCastAllOfMatcher<BaseT, DerivedT> Func,
 | |
|       StringRef MatcherName)
 | |
|       : VariadicFuncMatcherDescriptor(Func, MatcherName),
 | |
|         DerivedKind(ASTNodeKind::getFromNodeKind<DerivedT>()) {}
 | |
| 
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity,
 | |
|                        ASTNodeKind *LeastDerivedKind) const override {
 | |
|     // If Kind is not a base of DerivedKind, either DerivedKind is a base of
 | |
|     // Kind (in which case the match will always succeed) or Kind and
 | |
|     // DerivedKind are unrelated (in which case it will always fail), so set
 | |
|     // Specificity to 0.
 | |
|     if (VariadicFuncMatcherDescriptor::isConvertibleTo(Kind, Specificity,
 | |
|                                                  LeastDerivedKind)) {
 | |
|       if (Kind.isSame(DerivedKind) || !Kind.isBaseOf(DerivedKind)) {
 | |
|         if (Specificity)
 | |
|           *Specificity = 0;
 | |
|       }
 | |
|       return true;
 | |
|     } else {
 | |
|       return false;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   ASTNodeKind nodeMatcherType() const override { return DerivedKind; }
 | |
| 
 | |
| private:
 | |
|   const ASTNodeKind DerivedKind;
 | |
| };
 | |
| 
 | |
| /// Helper macros to check the arguments on all marshaller functions.
 | |
| #define CHECK_ARG_COUNT(count)                                                 \
 | |
|   if (Args.size() != count) {                                                  \
 | |
|     Error->addError(NameRange, Error->ET_RegistryWrongArgCount)                \
 | |
|         << count << Args.size();                                               \
 | |
|     return VariantMatcher();                                                   \
 | |
|   }
 | |
| 
 | |
| #define CHECK_ARG_TYPE(index, type)                                            \
 | |
|   if (!ArgTypeTraits<type>::hasCorrectType(Args[index].Value)) {               \
 | |
|     Error->addError(Args[index].Range, Error->ET_RegistryWrongArgType)         \
 | |
|         << (index + 1) << ArgTypeTraits<type>::getKind().asString()            \
 | |
|         << Args[index].Value.getTypeAsString();                                \
 | |
|     return VariantMatcher();                                                   \
 | |
|   }                                                                            \
 | |
|   if (!ArgTypeTraits<type>::hasCorrectValue(Args[index].Value)) {              \
 | |
|     if (llvm::Optional<std::string> BestGuess =                                \
 | |
|             ArgTypeTraits<type>::getBestGuess(Args[index].Value)) {            \
 | |
|       Error->addError(Args[index].Range,                                       \
 | |
|                       Error->ET_RegistryUnknownEnumWithReplace)                \
 | |
|           << index + 1 << Args[index].Value.getString() << *BestGuess;         \
 | |
|     } else if (Args[index].Value.isString()) {                                 \
 | |
|       Error->addError(Args[index].Range, Error->ET_RegistryValueNotFound)      \
 | |
|           << Args[index].Value.getString();                                    \
 | |
|     }                                                                          \
 | |
|     return VariantMatcher();                                                   \
 | |
|   }
 | |
| 
 | |
| /// 0-arg marshaller function.
 | |
| template <typename ReturnType>
 | |
| static VariantMatcher matcherMarshall0(void (*Func)(), StringRef MatcherName,
 | |
|                                        SourceRange NameRange,
 | |
|                                        ArrayRef<ParserValue> Args,
 | |
|                                        Diagnostics *Error) {
 | |
|   using FuncType = ReturnType (*)();
 | |
|   CHECK_ARG_COUNT(0);
 | |
|   return outvalueToVariantMatcher(reinterpret_cast<FuncType>(Func)());
 | |
| }
 | |
| 
 | |
| /// 1-arg marshaller function.
 | |
| template <typename ReturnType, typename ArgType1>
 | |
| static VariantMatcher matcherMarshall1(void (*Func)(), StringRef MatcherName,
 | |
|                                        SourceRange NameRange,
 | |
|                                        ArrayRef<ParserValue> Args,
 | |
|                                        Diagnostics *Error) {
 | |
|   using FuncType = ReturnType (*)(ArgType1);
 | |
|   CHECK_ARG_COUNT(1);
 | |
|   CHECK_ARG_TYPE(0, ArgType1);
 | |
|   return outvalueToVariantMatcher(reinterpret_cast<FuncType>(Func)(
 | |
|       ArgTypeTraits<ArgType1>::get(Args[0].Value)));
 | |
| }
 | |
| 
 | |
| /// 2-arg marshaller function.
 | |
| template <typename ReturnType, typename ArgType1, typename ArgType2>
 | |
| static VariantMatcher matcherMarshall2(void (*Func)(), StringRef MatcherName,
 | |
|                                        SourceRange NameRange,
 | |
|                                        ArrayRef<ParserValue> Args,
 | |
|                                        Diagnostics *Error) {
 | |
|   using FuncType = ReturnType (*)(ArgType1, ArgType2);
 | |
|   CHECK_ARG_COUNT(2);
 | |
|   CHECK_ARG_TYPE(0, ArgType1);
 | |
|   CHECK_ARG_TYPE(1, ArgType2);
 | |
|   return outvalueToVariantMatcher(reinterpret_cast<FuncType>(Func)(
 | |
|       ArgTypeTraits<ArgType1>::get(Args[0].Value),
 | |
|       ArgTypeTraits<ArgType2>::get(Args[1].Value)));
 | |
| }
 | |
| 
 | |
| #undef CHECK_ARG_COUNT
 | |
| #undef CHECK_ARG_TYPE
 | |
| 
 | |
| /// Helper class used to collect all the possible overloads of an
 | |
| ///   argument adaptative matcher function.
 | |
| template <template <typename ToArg, typename FromArg> class ArgumentAdapterT,
 | |
|           typename FromTypes, typename ToTypes>
 | |
| class AdaptativeOverloadCollector {
 | |
| public:
 | |
|   AdaptativeOverloadCollector(
 | |
|       StringRef Name, std::vector<std::unique_ptr<MatcherDescriptor>> &Out)
 | |
|       : Name(Name), Out(Out) {
 | |
|     collect(FromTypes());
 | |
|   }
 | |
| 
 | |
| private:
 | |
|   using AdaptativeFunc = ast_matchers::internal::ArgumentAdaptingMatcherFunc<
 | |
|       ArgumentAdapterT, FromTypes, ToTypes>;
 | |
| 
 | |
|   /// End case for the recursion
 | |
|   static void collect(ast_matchers::internal::EmptyTypeList) {}
 | |
| 
 | |
|   /// Recursive case. Get the overload for the head of the list, and
 | |
|   ///   recurse to the tail.
 | |
|   template <typename FromTypeList>
 | |
|   inline void collect(FromTypeList);
 | |
| 
 | |
|   StringRef Name;
 | |
|   std::vector<std::unique_ptr<MatcherDescriptor>> &Out;
 | |
| };
 | |
| 
 | |
| /// MatcherDescriptor that wraps multiple "overloads" of the same
 | |
| ///   matcher.
 | |
| ///
 | |
| /// It will try every overload and generate appropriate errors for when none or
 | |
| /// more than one overloads match the arguments.
 | |
| class OverloadedMatcherDescriptor : public MatcherDescriptor {
 | |
| public:
 | |
|   OverloadedMatcherDescriptor(
 | |
|       MutableArrayRef<std::unique_ptr<MatcherDescriptor>> Callbacks)
 | |
|       : Overloads(std::make_move_iterator(Callbacks.begin()),
 | |
|                   std::make_move_iterator(Callbacks.end())) {}
 | |
| 
 | |
|   ~OverloadedMatcherDescriptor() override = default;
 | |
| 
 | |
|   VariantMatcher create(SourceRange NameRange,
 | |
|                         ArrayRef<ParserValue> Args,
 | |
|                         Diagnostics *Error) const override {
 | |
|     std::vector<VariantMatcher> Constructed;
 | |
|     Diagnostics::OverloadContext Ctx(Error);
 | |
|     for (const auto &O : Overloads) {
 | |
|       VariantMatcher SubMatcher = O->create(NameRange, Args, Error);
 | |
|       if (!SubMatcher.isNull()) {
 | |
|         Constructed.push_back(SubMatcher);
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     if (Constructed.empty()) return VariantMatcher(); // No overload matched.
 | |
|     // We ignore the errors if any matcher succeeded.
 | |
|     Ctx.revertErrors();
 | |
|     if (Constructed.size() > 1) {
 | |
|       // More than one constructed. It is ambiguous.
 | |
|       Error->addError(NameRange, Error->ET_RegistryAmbiguousOverload);
 | |
|       return VariantMatcher();
 | |
|     }
 | |
|     return Constructed[0];
 | |
|   }
 | |
| 
 | |
|   bool isVariadic() const override {
 | |
|     bool Overload0Variadic = Overloads[0]->isVariadic();
 | |
| #ifndef NDEBUG
 | |
|     for (const auto &O : Overloads) {
 | |
|       assert(Overload0Variadic == O->isVariadic());
 | |
|     }
 | |
| #endif
 | |
|     return Overload0Variadic;
 | |
|   }
 | |
| 
 | |
|   unsigned getNumArgs() const override {
 | |
|     unsigned Overload0NumArgs = Overloads[0]->getNumArgs();
 | |
| #ifndef NDEBUG
 | |
|     for (const auto &O : Overloads) {
 | |
|       assert(Overload0NumArgs == O->getNumArgs());
 | |
|     }
 | |
| #endif
 | |
|     return Overload0NumArgs;
 | |
|   }
 | |
| 
 | |
|   void getArgKinds(ASTNodeKind ThisKind, unsigned ArgNo,
 | |
|                    std::vector<ArgKind> &Kinds) const override {
 | |
|     for (const auto &O : Overloads) {
 | |
|       if (O->isConvertibleTo(ThisKind))
 | |
|         O->getArgKinds(ThisKind, ArgNo, Kinds);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity,
 | |
|                        ASTNodeKind *LeastDerivedKind) const override {
 | |
|     for (const auto &O : Overloads) {
 | |
|       if (O->isConvertibleTo(Kind, Specificity, LeastDerivedKind))
 | |
|         return true;
 | |
|     }
 | |
|     return false;
 | |
|   }
 | |
| 
 | |
| private:
 | |
|   std::vector<std::unique_ptr<MatcherDescriptor>> Overloads;
 | |
| };
 | |
| 
 | |
| template <typename ReturnType>
 | |
| class RegexMatcherDescriptor : public MatcherDescriptor {
 | |
| public:
 | |
|   RegexMatcherDescriptor(ReturnType (*WithFlags)(StringRef,
 | |
|                                                  llvm::Regex::RegexFlags),
 | |
|                          ReturnType (*NoFlags)(StringRef),
 | |
|                          ArrayRef<ASTNodeKind> RetKinds)
 | |
|       : WithFlags(WithFlags), NoFlags(NoFlags),
 | |
|         RetKinds(RetKinds.begin(), RetKinds.end()) {}
 | |
|   bool isVariadic() const override { return true; }
 | |
|   unsigned getNumArgs() const override { return 0; }
 | |
| 
 | |
|   void getArgKinds(ASTNodeKind ThisKind, unsigned ArgNo,
 | |
|                    std::vector<ArgKind> &Kinds) const override {
 | |
|     assert(ArgNo < 2);
 | |
|     Kinds.push_back(ArgKind::AK_String);
 | |
|   }
 | |
| 
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity,
 | |
|                        ASTNodeKind *LeastDerivedKind) const override {
 | |
|     return isRetKindConvertibleTo(RetKinds, Kind, Specificity,
 | |
|                                   LeastDerivedKind);
 | |
|   }
 | |
| 
 | |
|   VariantMatcher create(SourceRange NameRange, ArrayRef<ParserValue> Args,
 | |
|                         Diagnostics *Error) const override {
 | |
|     if (Args.size() < 1 || Args.size() > 2) {
 | |
|       Error->addError(NameRange, Diagnostics::ET_RegistryWrongArgCount)
 | |
|           << "1 or 2" << Args.size();
 | |
|       return VariantMatcher();
 | |
|     }
 | |
|     if (!ArgTypeTraits<StringRef>::hasCorrectType(Args[0].Value)) {
 | |
|       Error->addError(Args[0].Range, Error->ET_RegistryWrongArgType)
 | |
|           << 1 << ArgTypeTraits<StringRef>::getKind().asString()
 | |
|           << Args[0].Value.getTypeAsString();
 | |
|       return VariantMatcher();
 | |
|     }
 | |
|     if (Args.size() == 1) {
 | |
|       return outvalueToVariantMatcher(
 | |
|           NoFlags(ArgTypeTraits<StringRef>::get(Args[0].Value)));
 | |
|     }
 | |
|     if (!ArgTypeTraits<llvm::Regex::RegexFlags>::hasCorrectType(
 | |
|             Args[1].Value)) {
 | |
|       Error->addError(Args[1].Range, Error->ET_RegistryWrongArgType)
 | |
|           << 2 << ArgTypeTraits<llvm::Regex::RegexFlags>::getKind().asString()
 | |
|           << Args[1].Value.getTypeAsString();
 | |
|       return VariantMatcher();
 | |
|     }
 | |
|     if (!ArgTypeTraits<llvm::Regex::RegexFlags>::hasCorrectValue(
 | |
|             Args[1].Value)) {
 | |
|       if (llvm::Optional<std::string> BestGuess =
 | |
|               ArgTypeTraits<llvm::Regex::RegexFlags>::getBestGuess(
 | |
|                   Args[1].Value)) {
 | |
|         Error->addError(Args[1].Range, Error->ET_RegistryUnknownEnumWithReplace)
 | |
|             << 2 << Args[1].Value.getString() << *BestGuess;
 | |
|       } else {
 | |
|         Error->addError(Args[1].Range, Error->ET_RegistryValueNotFound)
 | |
|             << Args[1].Value.getString();
 | |
|       }
 | |
|       return VariantMatcher();
 | |
|     }
 | |
|     return outvalueToVariantMatcher(
 | |
|         WithFlags(ArgTypeTraits<StringRef>::get(Args[0].Value),
 | |
|                   ArgTypeTraits<llvm::Regex::RegexFlags>::get(Args[1].Value)));
 | |
|   }
 | |
| 
 | |
| private:
 | |
|   ReturnType (*const WithFlags)(StringRef, llvm::Regex::RegexFlags);
 | |
|   ReturnType (*const NoFlags)(StringRef);
 | |
|   const std::vector<ASTNodeKind> RetKinds;
 | |
| };
 | |
| 
 | |
| /// Variadic operator marshaller function.
 | |
| class VariadicOperatorMatcherDescriptor : public MatcherDescriptor {
 | |
| public:
 | |
|   using VarOp = DynTypedMatcher::VariadicOperator;
 | |
| 
 | |
|   VariadicOperatorMatcherDescriptor(unsigned MinCount, unsigned MaxCount,
 | |
|                                     VarOp Op, StringRef MatcherName)
 | |
|       : MinCount(MinCount), MaxCount(MaxCount), Op(Op),
 | |
|         MatcherName(MatcherName) {}
 | |
| 
 | |
|   VariantMatcher create(SourceRange NameRange,
 | |
|                         ArrayRef<ParserValue> Args,
 | |
|                         Diagnostics *Error) const override {
 | |
|     if (Args.size() < MinCount || MaxCount < Args.size()) {
 | |
|       const std::string MaxStr =
 | |
|           (MaxCount == std::numeric_limits<unsigned>::max() ? ""
 | |
|                                                             : Twine(MaxCount))
 | |
|               .str();
 | |
|       Error->addError(NameRange, Error->ET_RegistryWrongArgCount)
 | |
|           << ("(" + Twine(MinCount) + ", " + MaxStr + ")") << Args.size();
 | |
|       return VariantMatcher();
 | |
|     }
 | |
| 
 | |
|     std::vector<VariantMatcher> InnerArgs;
 | |
|     for (size_t i = 0, e = Args.size(); i != e; ++i) {
 | |
|       const ParserValue &Arg = Args[i];
 | |
|       const VariantValue &Value = Arg.Value;
 | |
|       if (!Value.isMatcher()) {
 | |
|         Error->addError(Arg.Range, Error->ET_RegistryWrongArgType)
 | |
|             << (i + 1) << "Matcher<>" << Value.getTypeAsString();
 | |
|         return VariantMatcher();
 | |
|       }
 | |
|       InnerArgs.push_back(Value.getMatcher());
 | |
|     }
 | |
|     return VariantMatcher::VariadicOperatorMatcher(Op, std::move(InnerArgs));
 | |
|   }
 | |
| 
 | |
|   bool isVariadic() const override { return true; }
 | |
|   unsigned getNumArgs() const override { return 0; }
 | |
| 
 | |
|   void getArgKinds(ASTNodeKind ThisKind, unsigned ArgNo,
 | |
|                    std::vector<ArgKind> &Kinds) const override {
 | |
|     Kinds.push_back(ArgKind::MakeMatcherArg(ThisKind));
 | |
|   }
 | |
| 
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity,
 | |
|                        ASTNodeKind *LeastDerivedKind) const override {
 | |
|     if (Specificity)
 | |
|       *Specificity = 1;
 | |
|     if (LeastDerivedKind)
 | |
|       *LeastDerivedKind = Kind;
 | |
|     return true;
 | |
|   }
 | |
| 
 | |
|   bool isPolymorphic() const override { return true; }
 | |
| 
 | |
| private:
 | |
|   const unsigned MinCount;
 | |
|   const unsigned MaxCount;
 | |
|   const VarOp Op;
 | |
|   const StringRef MatcherName;
 | |
| };
 | |
| 
 | |
| class MapAnyOfMatcherDescriptor : public MatcherDescriptor {
 | |
|   ASTNodeKind CladeNodeKind;
 | |
|   std::vector<ASTNodeKind> NodeKinds;
 | |
| 
 | |
| public:
 | |
|   MapAnyOfMatcherDescriptor(ASTNodeKind CladeNodeKind,
 | |
|                             std::vector<ASTNodeKind> NodeKinds)
 | |
|       : CladeNodeKind(CladeNodeKind), NodeKinds(NodeKinds) {}
 | |
| 
 | |
|   VariantMatcher create(SourceRange NameRange, ArrayRef<ParserValue> Args,
 | |
|                         Diagnostics *Error) const override {
 | |
| 
 | |
|     std::vector<DynTypedMatcher> NodeArgs;
 | |
| 
 | |
|     for (auto NK : NodeKinds) {
 | |
|       std::vector<DynTypedMatcher> InnerArgs;
 | |
| 
 | |
|       for (const auto &Arg : Args) {
 | |
|         if (!Arg.Value.isMatcher())
 | |
|           return {};
 | |
|         const VariantMatcher &VM = Arg.Value.getMatcher();
 | |
|         if (VM.hasTypedMatcher(NK)) {
 | |
|           auto DM = VM.getTypedMatcher(NK);
 | |
|           InnerArgs.push_back(DM);
 | |
|         }
 | |
|       }
 | |
| 
 | |
|       if (InnerArgs.empty()) {
 | |
|         NodeArgs.push_back(
 | |
|             DynTypedMatcher::trueMatcher(NK).dynCastTo(CladeNodeKind));
 | |
|       } else {
 | |
|         NodeArgs.push_back(
 | |
|             DynTypedMatcher::constructVariadic(
 | |
|                 ast_matchers::internal::DynTypedMatcher::VO_AllOf, NK,
 | |
|                 InnerArgs)
 | |
|                 .dynCastTo(CladeNodeKind));
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     auto Result = DynTypedMatcher::constructVariadic(
 | |
|         ast_matchers::internal::DynTypedMatcher::VO_AnyOf, CladeNodeKind,
 | |
|         NodeArgs);
 | |
|     Result.setAllowBind(true);
 | |
|     return VariantMatcher::SingleMatcher(Result);
 | |
|   }
 | |
| 
 | |
|   bool isVariadic() const override { return true; }
 | |
|   unsigned getNumArgs() const override { return 0; }
 | |
| 
 | |
|   void getArgKinds(ASTNodeKind ThisKind, unsigned,
 | |
|                    std::vector<ArgKind> &Kinds) const override {
 | |
|     Kinds.push_back(ArgKind::MakeMatcherArg(ThisKind));
 | |
|   }
 | |
| 
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity,
 | |
|                        ASTNodeKind *LeastDerivedKind) const override {
 | |
|     if (Specificity)
 | |
|       *Specificity = 1;
 | |
|     if (LeastDerivedKind)
 | |
|       *LeastDerivedKind = CladeNodeKind;
 | |
|     return true;
 | |
|   }
 | |
| };
 | |
| 
 | |
| class MapAnyOfBuilderDescriptor : public MatcherDescriptor {
 | |
| public:
 | |
|   VariantMatcher create(SourceRange, ArrayRef<ParserValue>,
 | |
|                         Diagnostics *) const override {
 | |
|     return {};
 | |
|   }
 | |
| 
 | |
|   bool isBuilderMatcher() const override { return true; }
 | |
| 
 | |
|   std::unique_ptr<MatcherDescriptor>
 | |
|   buildMatcherCtor(SourceRange, ArrayRef<ParserValue> Args,
 | |
|                    Diagnostics *) const override {
 | |
| 
 | |
|     std::vector<ASTNodeKind> NodeKinds;
 | |
|     for (auto Arg : Args) {
 | |
|       if (!Arg.Value.isNodeKind())
 | |
|         return {};
 | |
|       NodeKinds.push_back(Arg.Value.getNodeKind());
 | |
|     }
 | |
| 
 | |
|     if (NodeKinds.empty())
 | |
|       return {};
 | |
| 
 | |
|     ASTNodeKind CladeNodeKind = NodeKinds.front().getCladeKind();
 | |
| 
 | |
|     for (auto NK : NodeKinds)
 | |
|     {
 | |
|       if (!NK.getCladeKind().isSame(CladeNodeKind))
 | |
|         return {};
 | |
|     }
 | |
| 
 | |
|     return std::make_unique<MapAnyOfMatcherDescriptor>(CladeNodeKind,
 | |
|                                                        NodeKinds);
 | |
|   }
 | |
| 
 | |
|   bool isVariadic() const override { return true; }
 | |
| 
 | |
|   unsigned getNumArgs() const override { return 0; }
 | |
| 
 | |
|   void getArgKinds(ASTNodeKind ThisKind, unsigned,
 | |
|                    std::vector<ArgKind> &ArgKinds) const override {
 | |
|     ArgKinds.push_back(ArgKind::MakeNodeArg(ThisKind));
 | |
|     return;
 | |
|   }
 | |
|   bool isConvertibleTo(ASTNodeKind Kind, unsigned *Specificity = nullptr,
 | |
|                        ASTNodeKind *LeastDerivedKind = nullptr) const override {
 | |
|     if (Specificity)
 | |
|       *Specificity = 1;
 | |
|     if (LeastDerivedKind)
 | |
|       *LeastDerivedKind = Kind;
 | |
|     return true;
 | |
|   }
 | |
| 
 | |
|   bool isPolymorphic() const override { return false; }
 | |
| };
 | |
| 
 | |
| /// Helper functions to select the appropriate marshaller functions.
 | |
| /// They detect the number of arguments, arguments types and return type.
 | |
| 
 | |
| /// 0-arg overload
 | |
| template <typename ReturnType>
 | |
| std::unique_ptr<MatcherDescriptor>
 | |
| makeMatcherAutoMarshall(ReturnType (*Func)(), StringRef MatcherName) {
 | |
|   std::vector<ASTNodeKind> RetTypes;
 | |
|   BuildReturnTypeVector<ReturnType>::build(RetTypes);
 | |
|   return std::make_unique<FixedArgCountMatcherDescriptor>(
 | |
|       matcherMarshall0<ReturnType>, reinterpret_cast<void (*)()>(Func),
 | |
|       MatcherName, RetTypes, None);
 | |
| }
 | |
| 
 | |
| /// 1-arg overload
 | |
| template <typename ReturnType, typename ArgType1>
 | |
| std::unique_ptr<MatcherDescriptor>
 | |
| makeMatcherAutoMarshall(ReturnType (*Func)(ArgType1), StringRef MatcherName) {
 | |
|   std::vector<ASTNodeKind> RetTypes;
 | |
|   BuildReturnTypeVector<ReturnType>::build(RetTypes);
 | |
|   ArgKind AK = ArgTypeTraits<ArgType1>::getKind();
 | |
|   return std::make_unique<FixedArgCountMatcherDescriptor>(
 | |
|       matcherMarshall1<ReturnType, ArgType1>,
 | |
|       reinterpret_cast<void (*)()>(Func), MatcherName, RetTypes, AK);
 | |
| }
 | |
| 
 | |
| /// 2-arg overload
 | |
| template <typename ReturnType, typename ArgType1, typename ArgType2>
 | |
| std::unique_ptr<MatcherDescriptor>
 | |
| makeMatcherAutoMarshall(ReturnType (*Func)(ArgType1, ArgType2),
 | |
|                         StringRef MatcherName) {
 | |
|   std::vector<ASTNodeKind> RetTypes;
 | |
|   BuildReturnTypeVector<ReturnType>::build(RetTypes);
 | |
|   ArgKind AKs[] = { ArgTypeTraits<ArgType1>::getKind(),
 | |
|                     ArgTypeTraits<ArgType2>::getKind() };
 | |
|   return std::make_unique<FixedArgCountMatcherDescriptor>(
 | |
|       matcherMarshall2<ReturnType, ArgType1, ArgType2>,
 | |
|       reinterpret_cast<void (*)()>(Func), MatcherName, RetTypes, AKs);
 | |
| }
 | |
| 
 | |
| template <typename ReturnType>
 | |
| std::unique_ptr<MatcherDescriptor> makeMatcherRegexMarshall(
 | |
|     ReturnType (*FuncFlags)(llvm::StringRef, llvm::Regex::RegexFlags),
 | |
|     ReturnType (*Func)(llvm::StringRef)) {
 | |
|   std::vector<ASTNodeKind> RetTypes;
 | |
|   BuildReturnTypeVector<ReturnType>::build(RetTypes);
 | |
|   return std::make_unique<RegexMatcherDescriptor<ReturnType>>(FuncFlags, Func,
 | |
|                                                               RetTypes);
 | |
| }
 | |
| 
 | |
| /// Variadic overload.
 | |
| template <typename ResultT, typename ArgT,
 | |
|           ResultT (*Func)(ArrayRef<const ArgT *>)>
 | |
| std::unique_ptr<MatcherDescriptor> makeMatcherAutoMarshall(
 | |
|     ast_matchers::internal::VariadicFunction<ResultT, ArgT, Func> VarFunc,
 | |
|     StringRef MatcherName) {
 | |
|   return std::make_unique<VariadicFuncMatcherDescriptor>(VarFunc, MatcherName);
 | |
| }
 | |
| 
 | |
| /// Overload for VariadicDynCastAllOfMatchers.
 | |
| ///
 | |
| /// Not strictly necessary, but DynCastAllOfMatcherDescriptor gives us better
 | |
| /// completion results for that type of matcher.
 | |
| template <typename BaseT, typename DerivedT>
 | |
| std::unique_ptr<MatcherDescriptor> makeMatcherAutoMarshall(
 | |
|     ast_matchers::internal::VariadicDynCastAllOfMatcher<BaseT, DerivedT>
 | |
|         VarFunc,
 | |
|     StringRef MatcherName) {
 | |
|   return std::make_unique<DynCastAllOfMatcherDescriptor>(VarFunc, MatcherName);
 | |
| }
 | |
| 
 | |
| /// Argument adaptative overload.
 | |
| template <template <typename ToArg, typename FromArg> class ArgumentAdapterT,
 | |
|           typename FromTypes, typename ToTypes>
 | |
| std::unique_ptr<MatcherDescriptor> makeMatcherAutoMarshall(
 | |
|     ast_matchers::internal::ArgumentAdaptingMatcherFunc<ArgumentAdapterT,
 | |
|                                                         FromTypes, ToTypes>,
 | |
|     StringRef MatcherName) {
 | |
|   std::vector<std::unique_ptr<MatcherDescriptor>> Overloads;
 | |
|   AdaptativeOverloadCollector<ArgumentAdapterT, FromTypes, ToTypes>(MatcherName,
 | |
|                                                                     Overloads);
 | |
|   return std::make_unique<OverloadedMatcherDescriptor>(Overloads);
 | |
| }
 | |
| 
 | |
| template <template <typename ToArg, typename FromArg> class ArgumentAdapterT,
 | |
|           typename FromTypes, typename ToTypes>
 | |
| template <typename FromTypeList>
 | |
| inline void AdaptativeOverloadCollector<ArgumentAdapterT, FromTypes,
 | |
|                                         ToTypes>::collect(FromTypeList) {
 | |
|   Out.push_back(makeMatcherAutoMarshall(
 | |
|       &AdaptativeFunc::template create<typename FromTypeList::head>, Name));
 | |
|   collect(typename FromTypeList::tail());
 | |
| }
 | |
| 
 | |
| /// Variadic operator overload.
 | |
| template <unsigned MinCount, unsigned MaxCount>
 | |
| std::unique_ptr<MatcherDescriptor> makeMatcherAutoMarshall(
 | |
|     ast_matchers::internal::VariadicOperatorMatcherFunc<MinCount, MaxCount>
 | |
|         Func,
 | |
|     StringRef MatcherName) {
 | |
|   return std::make_unique<VariadicOperatorMatcherDescriptor>(
 | |
|       MinCount, MaxCount, Func.Op, MatcherName);
 | |
| }
 | |
| 
 | |
| template <typename CladeType, typename... MatcherT>
 | |
| std::unique_ptr<MatcherDescriptor> makeMatcherAutoMarshall(
 | |
|     ast_matchers::internal::MapAnyOfMatcherImpl<CladeType, MatcherT...>,
 | |
|     StringRef MatcherName) {
 | |
|   return std::make_unique<MapAnyOfMatcherDescriptor>(
 | |
|       ASTNodeKind::getFromNodeKind<CladeType>(),
 | |
|       std::vector<ASTNodeKind>{ASTNodeKind::getFromNodeKind<MatcherT>()...});
 | |
| }
 | |
| 
 | |
| } // namespace internal
 | |
| } // namespace dynamic
 | |
| } // namespace ast_matchers
 | |
| } // namespace clang
 | |
| 
 | |
| #endif // LLVM_CLANG_AST_MATCHERS_DYNAMIC_MARSHALLERS_H
 |