- //===-- ScopedPrinter.h ----------------------------------------*- 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 
- // 
- //===----------------------------------------------------------------------===// 
-   
- #ifndef LLVM_SUPPORT_SCOPEDPRINTER_H 
- #define LLVM_SUPPORT_SCOPEDPRINTER_H 
-   
- #include "llvm/ADT/APSInt.h" 
- #include "llvm/ADT/ArrayRef.h" 
- #include "llvm/ADT/SmallVector.h" 
- #include "llvm/ADT/StringExtras.h" 
- #include "llvm/ADT/StringRef.h" 
- #include "llvm/Support/DataTypes.h" 
- #include "llvm/Support/Endian.h" 
- #include "llvm/Support/JSON.h" 
- #include "llvm/Support/raw_ostream.h" 
-   
- namespace llvm { 
-   
- template <typename T> struct EnumEntry { 
-   StringRef Name; 
-   // While Name suffices in most of the cases, in certain cases 
-   // GNU style and LLVM style of ELFDumper do not 
-   // display same string for same enum. The AltName if initialized appropriately 
-   // will hold the string that GNU style emits. 
-   // Example: 
-   // "EM_X86_64" string on LLVM style for Elf_Ehdr->e_machine corresponds to 
-   // "Advanced Micro Devices X86-64" on GNU style 
-   StringRef AltName; 
-   T Value; 
-   constexpr EnumEntry(StringRef N, StringRef A, T V) 
-       : Name(N), AltName(A), Value(V) {} 
-   constexpr EnumEntry(StringRef N, T V) : Name(N), AltName(N), Value(V) {} 
- }; 
-   
- struct HexNumber { 
-   // To avoid sign-extension we have to explicitly cast to the appropriate 
-   // unsigned type. The overloads are here so that every type that is implicitly 
-   // convertible to an integer (including enums and endian helpers) can be used 
-   // without requiring type traits or call-site changes. 
-   HexNumber(char Value) : Value(static_cast<unsigned char>(Value)) {} 
-   HexNumber(signed char Value) : Value(static_cast<unsigned char>(Value)) {} 
-   HexNumber(signed short Value) : Value(static_cast<unsigned short>(Value)) {} 
-   HexNumber(signed int Value) : Value(static_cast<unsigned int>(Value)) {} 
-   HexNumber(signed long Value) : Value(static_cast<unsigned long>(Value)) {} 
-   HexNumber(signed long long Value) 
-       : Value(static_cast<unsigned long long>(Value)) {} 
-   HexNumber(unsigned char Value) : Value(Value) {} 
-   HexNumber(unsigned short Value) : Value(Value) {} 
-   HexNumber(unsigned int Value) : Value(Value) {} 
-   HexNumber(unsigned long Value) : Value(Value) {} 
-   HexNumber(unsigned long long Value) : Value(Value) {} 
-   uint64_t Value; 
- }; 
-   
- struct FlagEntry { 
-   FlagEntry(StringRef Name, char Value) 
-       : Name(Name), Value(static_cast<unsigned char>(Value)) {} 
-   FlagEntry(StringRef Name, signed char Value) 
-       : Name(Name), Value(static_cast<unsigned char>(Value)) {} 
-   FlagEntry(StringRef Name, signed short Value) 
-       : Name(Name), Value(static_cast<unsigned short>(Value)) {} 
-   FlagEntry(StringRef Name, signed int Value) 
-       : Name(Name), Value(static_cast<unsigned int>(Value)) {} 
-   FlagEntry(StringRef Name, signed long Value) 
-       : Name(Name), Value(static_cast<unsigned long>(Value)) {} 
-   FlagEntry(StringRef Name, signed long long Value) 
-       : Name(Name), Value(static_cast<unsigned long long>(Value)) {} 
-   FlagEntry(StringRef Name, unsigned char Value) : Name(Name), Value(Value) {} 
-   FlagEntry(StringRef Name, unsigned short Value) : Name(Name), Value(Value) {} 
-   FlagEntry(StringRef Name, unsigned int Value) : Name(Name), Value(Value) {} 
-   FlagEntry(StringRef Name, unsigned long Value) : Name(Name), Value(Value) {} 
-   FlagEntry(StringRef Name, unsigned long long Value) 
-       : Name(Name), Value(Value) {} 
-   StringRef Name; 
-   uint64_t Value; 
- }; 
-   
- raw_ostream &operator<<(raw_ostream &OS, const HexNumber &Value); 
-   
- template <class T> std::string to_string(const T &Value) { 
-   std::string number; 
-   raw_string_ostream stream(number); 
-   stream << Value; 
-   return stream.str(); 
- } 
-   
- template <typename T, typename TEnum> 
- std::string enumToString(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 
-   for (const EnumEntry<TEnum> &EnumItem : EnumValues) 
-     if (EnumItem.Value == Value) 
-       return std::string(EnumItem.AltName); 
-   return utohexstr(Value, true); 
- } 
-   
- class ScopedPrinter { 
- public: 
-   enum class ScopedPrinterKind { 
-     Base, 
-     JSON, 
-   }; 
-   
-   ScopedPrinter(raw_ostream &OS, 
-                 ScopedPrinterKind Kind = ScopedPrinterKind::Base) 
-       : OS(OS), Kind(Kind) {} 
-   
-   ScopedPrinterKind getKind() const { return Kind; } 
-   
-   static bool classof(const ScopedPrinter *SP) { 
-     return SP->getKind() == ScopedPrinterKind::Base; 
-   } 
-   
-   virtual ~ScopedPrinter() = default; 
-   
-   void flush() { OS.flush(); } 
-   
-   void indent(int Levels = 1) { IndentLevel += Levels; } 
-   
-   void unindent(int Levels = 1) { 
-     IndentLevel = IndentLevel > Levels ? IndentLevel - Levels : 0; 
-   } 
-   
-   void resetIndent() { IndentLevel = 0; } 
-   
-   int getIndentLevel() { return IndentLevel; } 
-   
-   void setPrefix(StringRef P) { Prefix = P; } 
-   
-   void printIndent() { 
-     OS << Prefix; 
-     for (int i = 0; i < IndentLevel; ++i) 
-       OS << "  "; 
-   } 
-   
-   template <typename T> HexNumber hex(T Value) { return HexNumber(Value); } 
-   
-   template <typename T, typename TEnum> 
-   void printEnum(StringRef Label, T Value, 
-                  ArrayRef<EnumEntry<TEnum>> EnumValues) { 
-     StringRef Name; 
-     bool Found = false; 
-     for (const auto &EnumItem : EnumValues) { 
-       if (EnumItem.Value == Value) { 
-         Name = EnumItem.Name; 
-         Found = true; 
-         break; 
-       } 
-     } 
-   
-     if (Found) 
-       printHex(Label, Name, Value); 
-     else 
-       printHex(Label, Value); 
-   } 
-   
-   template <typename T, typename TFlag> 
-   void printFlags(StringRef Label, T Value, ArrayRef<EnumEntry<TFlag>> Flags, 
-                   TFlag EnumMask1 = {}, TFlag EnumMask2 = {}, 
-                   TFlag EnumMask3 = {}) { 
-     SmallVector<FlagEntry, 10> SetFlags; 
-   
-     for (const auto &Flag : Flags) { 
-       if (Flag.Value == 0) 
-         continue; 
-   
-       TFlag EnumMask{}; 
-       if (Flag.Value & EnumMask1) 
-         EnumMask = EnumMask1; 
-       else if (Flag.Value & EnumMask2) 
-         EnumMask = EnumMask2; 
-       else if (Flag.Value & EnumMask3) 
-         EnumMask = EnumMask3; 
-       bool IsEnum = (Flag.Value & EnumMask) != 0; 
-       if ((!IsEnum && (Value & Flag.Value) == Flag.Value) || 
-           (IsEnum && (Value & EnumMask) == Flag.Value)) { 
-         SetFlags.emplace_back(Flag.Name, Flag.Value); 
-       } 
-     } 
-   
-     llvm::sort(SetFlags, &flagName); 
-     printFlagsImpl(Label, hex(Value), SetFlags); 
-   } 
-   
-   template <typename T> void printFlags(StringRef Label, T Value) { 
-     SmallVector<HexNumber, 10> SetFlags; 
-     uint64_t Flag = 1; 
-     uint64_t Curr = Value; 
-     while (Curr > 0) { 
-       if (Curr & 1) 
-         SetFlags.emplace_back(Flag); 
-       Curr >>= 1; 
-       Flag <<= 1; 
-     } 
-     printFlagsImpl(Label, hex(Value), SetFlags); 
-   } 
-   
-   virtual void printNumber(StringRef Label, uint64_t Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, uint32_t Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, uint16_t Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, uint8_t Value) { 
-     startLine() << Label << ": " << unsigned(Value) << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, int64_t Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, int32_t Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, int16_t Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, int8_t Value) { 
-     startLine() << Label << ": " << int(Value) << "\n"; 
-   } 
-   
-   virtual void printNumber(StringRef Label, const APSInt &Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   template <typename T> 
-   void printNumber(StringRef Label, StringRef Str, T Value) { 
-     printNumberImpl(Label, Str, to_string(Value)); 
-   } 
-   
-   virtual void printBoolean(StringRef Label, bool Value) { 
-     startLine() << Label << ": " << (Value ? "Yes" : "No") << '\n'; 
-   } 
-   
-   template <typename... T> void printVersion(StringRef Label, T... Version) { 
-     startLine() << Label << ": "; 
-     printVersionInternal(Version...); 
-     getOStream() << "\n"; 
-   } 
-   
-   template <typename T> 
-   void printList(StringRef Label, const ArrayRef<T> List) { 
-     SmallVector<std::string, 10> StringList; 
-     for (const auto &Item : List) 
-       StringList.emplace_back(to_string(Item)); 
-     printList(Label, StringList); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<bool> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<std::string> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<uint64_t> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<uint32_t> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<uint16_t> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<uint8_t> List) { 
-     SmallVector<unsigned> NumberList; 
-     for (const uint8_t &Item : List) 
-       NumberList.emplace_back(Item); 
-     printListImpl(Label, NumberList); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<int64_t> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<int32_t> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<int16_t> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<int8_t> List) { 
-     SmallVector<int> NumberList; 
-     for (const int8_t &Item : List) 
-       NumberList.emplace_back(Item); 
-     printListImpl(Label, NumberList); 
-   } 
-   
-   virtual void printList(StringRef Label, const ArrayRef<APSInt> List) { 
-     printListImpl(Label, List); 
-   } 
-   
-   template <typename T, typename U> 
-   void printList(StringRef Label, const T &List, const U &Printer) { 
-     startLine() << Label << ": ["; 
-     ListSeparator LS; 
-     for (const auto &Item : List) { 
-       OS << LS; 
-       Printer(OS, Item); 
-     } 
-     OS << "]\n"; 
-   } 
-   
-   template <typename T> void printHexList(StringRef Label, const T &List) { 
-     SmallVector<HexNumber> HexList; 
-     for (const auto &Item : List) 
-       HexList.emplace_back(Item); 
-     printHexListImpl(Label, HexList); 
-   } 
-   
-   template <typename T> void printHex(StringRef Label, T Value) { 
-     printHexImpl(Label, hex(Value)); 
-   } 
-   
-   template <typename T> void printHex(StringRef Label, StringRef Str, T Value) { 
-     printHexImpl(Label, Str, hex(Value)); 
-   } 
-   
-   template <typename T> 
-   void printSymbolOffset(StringRef Label, StringRef Symbol, T Value) { 
-     printSymbolOffsetImpl(Label, Symbol, hex(Value)); 
-   } 
-   
-   virtual void printString(StringRef Value) { startLine() << Value << "\n"; } 
-   
-   virtual void printString(StringRef Label, StringRef Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   void printStringEscaped(StringRef Label, StringRef Value) { 
-     printStringEscapedImpl(Label, Value); 
-   } 
-   
-   void printBinary(StringRef Label, StringRef Str, ArrayRef<uint8_t> Value) { 
-     printBinaryImpl(Label, Str, Value, false); 
-   } 
-   
-   void printBinary(StringRef Label, StringRef Str, ArrayRef<char> Value) { 
-     auto V = 
-         ArrayRef(reinterpret_cast<const uint8_t *>(Value.data()), Value.size()); 
-     printBinaryImpl(Label, Str, V, false); 
-   } 
-   
-   void printBinary(StringRef Label, ArrayRef<uint8_t> Value) { 
-     printBinaryImpl(Label, StringRef(), Value, false); 
-   } 
-   
-   void printBinary(StringRef Label, ArrayRef<char> Value) { 
-     auto V = 
-         ArrayRef(reinterpret_cast<const uint8_t *>(Value.data()), Value.size()); 
-     printBinaryImpl(Label, StringRef(), V, false); 
-   } 
-   
-   void printBinary(StringRef Label, StringRef Value) { 
-     auto V = 
-         ArrayRef(reinterpret_cast<const uint8_t *>(Value.data()), Value.size()); 
-     printBinaryImpl(Label, StringRef(), V, false); 
-   } 
-   
-   void printBinaryBlock(StringRef Label, ArrayRef<uint8_t> Value, 
-                         uint32_t StartOffset) { 
-     printBinaryImpl(Label, StringRef(), Value, true, StartOffset); 
-   } 
-   
-   void printBinaryBlock(StringRef Label, ArrayRef<uint8_t> Value) { 
-     printBinaryImpl(Label, StringRef(), Value, true); 
-   } 
-   
-   void printBinaryBlock(StringRef Label, StringRef Value) { 
-     auto V = 
-         ArrayRef(reinterpret_cast<const uint8_t *>(Value.data()), Value.size()); 
-     printBinaryImpl(Label, StringRef(), V, true); 
-   } 
-   
-   template <typename T> void printObject(StringRef Label, const T &Value) { 
-     printString(Label, to_string(Value)); 
-   } 
-   
-   virtual void objectBegin() { scopedBegin('{'); } 
-   
-   virtual void objectBegin(StringRef Label) { scopedBegin(Label, '{'); } 
-   
-   virtual void objectEnd() { scopedEnd('}'); } 
-   
-   virtual void arrayBegin() { scopedBegin('['); } 
-   
-   virtual void arrayBegin(StringRef Label) { scopedBegin(Label, '['); } 
-   
-   virtual void arrayEnd() { scopedEnd(']'); } 
-   
-   virtual raw_ostream &startLine() { 
-     printIndent(); 
-     return OS; 
-   } 
-   
-   virtual raw_ostream &getOStream() { return OS; } 
-   
- private: 
-   template <typename T> void printVersionInternal(T Value) { 
-     getOStream() << Value; 
-   } 
-   
-   template <typename S, typename T, typename... TArgs> 
-   void printVersionInternal(S Value, T Value2, TArgs... Args) { 
-     getOStream() << Value << "."; 
-     printVersionInternal(Value2, Args...); 
-   } 
-   
-   static bool flagName(const FlagEntry &LHS, const FlagEntry &RHS) { 
-     return LHS.Name < RHS.Name; 
-   } 
-   
-   virtual void printBinaryImpl(StringRef Label, StringRef Str, 
-                                ArrayRef<uint8_t> Value, bool Block, 
-                                uint32_t StartOffset = 0); 
-   
-   virtual void printFlagsImpl(StringRef Label, HexNumber Value, 
-                               ArrayRef<FlagEntry> Flags) { 
-     startLine() << Label << " [ (" << Value << ")\n"; 
-     for (const auto &Flag : Flags) 
-       startLine() << "  " << Flag.Name << " (" << hex(Flag.Value) << ")\n"; 
-     startLine() << "]\n"; 
-   } 
-   
-   virtual void printFlagsImpl(StringRef Label, HexNumber Value, 
-                               ArrayRef<HexNumber> Flags) { 
-     startLine() << Label << " [ (" << Value << ")\n"; 
-     for (const auto &Flag : Flags) 
-       startLine() << "  " << Flag << '\n'; 
-     startLine() << "]\n"; 
-   } 
-   
-   template <typename T> void printListImpl(StringRef Label, const T List) { 
-     startLine() << Label << ": ["; 
-     ListSeparator LS; 
-     for (const auto &Item : List) 
-       OS << LS << Item; 
-     OS << "]\n"; 
-   } 
-   
-   virtual void printHexListImpl(StringRef Label, 
-                                 const ArrayRef<HexNumber> List) { 
-     startLine() << Label << ": ["; 
-     ListSeparator LS; 
-     for (const auto &Item : List) 
-       OS << LS << hex(Item); 
-     OS << "]\n"; 
-   } 
-   
-   virtual void printHexImpl(StringRef Label, HexNumber Value) { 
-     startLine() << Label << ": " << Value << "\n"; 
-   } 
-   
-   virtual void printHexImpl(StringRef Label, StringRef Str, HexNumber Value) { 
-     startLine() << Label << ": " << Str << " (" << Value << ")\n"; 
-   } 
-   
-   virtual void printSymbolOffsetImpl(StringRef Label, StringRef Symbol, 
-                                      HexNumber Value) { 
-     startLine() << Label << ": " << Symbol << '+' << Value << '\n'; 
-   } 
-   
-   virtual void printNumberImpl(StringRef Label, StringRef Str, 
-                                StringRef Value) { 
-     startLine() << Label << ": " << Str << " (" << Value << ")\n"; 
-   } 
-   
-   virtual void printStringEscapedImpl(StringRef Label, StringRef Value) { 
-     startLine() << Label << ": "; 
-     OS.write_escaped(Value); 
-     OS << '\n'; 
-   } 
-   
-   void scopedBegin(char Symbol) { 
-     startLine() << Symbol << '\n'; 
-     indent(); 
-   } 
-   
-   void scopedBegin(StringRef Label, char Symbol) { 
-     startLine() << Label; 
-     if (!Label.empty()) 
-       OS << ' '; 
-     OS << Symbol << '\n'; 
-     indent(); 
-   } 
-   
-   void scopedEnd(char Symbol) { 
-     unindent(); 
-     startLine() << Symbol << '\n'; 
-   } 
-   
-   raw_ostream &OS; 
-   int IndentLevel = 0; 
-   StringRef Prefix; 
-   ScopedPrinterKind Kind; 
- }; 
-   
- template <> 
- inline void 
- ScopedPrinter::printHex<support::ulittle16_t>(StringRef Label, 
-                                               support::ulittle16_t Value) { 
-   startLine() << Label << ": " << hex(Value) << "\n"; 
- } 
-   
- struct DelimitedScope; 
-   
- class JSONScopedPrinter : public ScopedPrinter { 
- private: 
-   enum class Scope { 
-     Array, 
-     Object, 
-   }; 
-   
-   enum class ScopeKind { 
-     NoAttribute, 
-     Attribute, 
-     NestedAttribute, 
-   }; 
-   
-   struct ScopeContext { 
-     Scope Context; 
-     ScopeKind Kind; 
-     ScopeContext(Scope Context, ScopeKind Kind = ScopeKind::NoAttribute) 
-         : Context(Context), Kind(Kind) {} 
-   }; 
-   
-   SmallVector<ScopeContext, 8> ScopeHistory; 
-   json::OStream JOS; 
-   std::unique_ptr<DelimitedScope> OuterScope; 
-   
- public: 
-   JSONScopedPrinter(raw_ostream &OS, bool PrettyPrint = false, 
-                     std::unique_ptr<DelimitedScope> &&OuterScope = 
-                         std::unique_ptr<DelimitedScope>{}); 
-   
-   static bool classof(const ScopedPrinter *SP) { 
-     return SP->getKind() == ScopedPrinter::ScopedPrinterKind::JSON; 
-   } 
-   
-   void printNumber(StringRef Label, uint64_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, uint32_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, uint16_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, uint8_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, int64_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, int32_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, int16_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, int8_t Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printNumber(StringRef Label, const APSInt &Value) override { 
-     JOS.attributeBegin(Label); 
-     printAPSInt(Value); 
-     JOS.attributeEnd(); 
-   } 
-   
-   void printBoolean(StringRef Label, bool Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<bool> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<std::string> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<uint64_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<uint32_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<uint16_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<uint8_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<int64_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<int32_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<int16_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<int8_t> List) override { 
-     printListImpl(Label, List); 
-   } 
-   
-   void printList(StringRef Label, const ArrayRef<APSInt> List) override { 
-     JOS.attributeArray(Label, [&]() { 
-       for (const APSInt &Item : List) { 
-         printAPSInt(Item); 
-       } 
-     }); 
-   } 
-   
-   void printString(StringRef Value) override { JOS.value(Value); } 
-   
-   void printString(StringRef Label, StringRef Value) override { 
-     JOS.attribute(Label, Value); 
-   } 
-   
-   void objectBegin() override { 
-     scopedBegin({Scope::Object, ScopeKind::NoAttribute}); 
-   } 
-   
-   void objectBegin(StringRef Label) override { 
-     scopedBegin(Label, Scope::Object); 
-   } 
-   
-   void objectEnd() override { scopedEnd(); } 
-   
-   void arrayBegin() override { 
-     scopedBegin({Scope::Array, ScopeKind::NoAttribute}); 
-   } 
-   
-   void arrayBegin(StringRef Label) override { 
-     scopedBegin(Label, Scope::Array); 
-   } 
-   
-   void arrayEnd() override { scopedEnd(); } 
-   
- private: 
-   // Output HexNumbers as decimals so that they're easier to parse. 
-   uint64_t hexNumberToInt(HexNumber Hex) { return Hex.Value; } 
-   
-   void printAPSInt(const APSInt &Value) { 
-     JOS.rawValueBegin() << Value; 
-     JOS.rawValueEnd(); 
-   } 
-   
-   void printFlagsImpl(StringRef Label, HexNumber Value, 
-                       ArrayRef<FlagEntry> Flags) override { 
-     JOS.attributeObject(Label, [&]() { 
-       JOS.attribute("RawFlags", hexNumberToInt(Value)); 
-       JOS.attributeArray("Flags", [&]() { 
-         for (const FlagEntry &Flag : Flags) { 
-           JOS.objectBegin(); 
-           JOS.attribute("Name", Flag.Name); 
-           JOS.attribute("Value", Flag.Value); 
-           JOS.objectEnd(); 
-         } 
-       }); 
-     }); 
-   } 
-   
-   void printFlagsImpl(StringRef Label, HexNumber Value, 
-                       ArrayRef<HexNumber> Flags) override { 
-     JOS.attributeObject(Label, [&]() { 
-       JOS.attribute("RawFlags", hexNumberToInt(Value)); 
-       JOS.attributeArray("Flags", [&]() { 
-         for (const HexNumber &Flag : Flags) { 
-           JOS.value(Flag.Value); 
-         } 
-       }); 
-     }); 
-   } 
-   
-   template <typename T> void printListImpl(StringRef Label, const T &List) { 
-     JOS.attributeArray(Label, [&]() { 
-       for (const auto &Item : List) 
-         JOS.value(Item); 
-     }); 
-   } 
-   
-   void printHexListImpl(StringRef Label, 
-                         const ArrayRef<HexNumber> List) override { 
-     JOS.attributeArray(Label, [&]() { 
-       for (const HexNumber &Item : List) { 
-         JOS.value(hexNumberToInt(Item)); 
-       } 
-     }); 
-   } 
-   
-   void printHexImpl(StringRef Label, HexNumber Value) override { 
-     JOS.attribute(Label, hexNumberToInt(Value)); 
-   } 
-   
-   void printHexImpl(StringRef Label, StringRef Str, HexNumber Value) override { 
-     JOS.attributeObject(Label, [&]() { 
-       JOS.attribute("Value", Str); 
-       JOS.attribute("RawValue", hexNumberToInt(Value)); 
-     }); 
-   } 
-   
-   void printSymbolOffsetImpl(StringRef Label, StringRef Symbol, 
-                              HexNumber Value) override { 
-     JOS.attributeObject(Label, [&]() { 
-       JOS.attribute("SymName", Symbol); 
-       JOS.attribute("Offset", hexNumberToInt(Value)); 
-     }); 
-   } 
-   
-   void printNumberImpl(StringRef Label, StringRef Str, 
-                        StringRef Value) override { 
-     JOS.attributeObject(Label, [&]() { 
-       JOS.attribute("Value", Str); 
-       JOS.attributeBegin("RawValue"); 
-       JOS.rawValueBegin() << Value; 
-       JOS.rawValueEnd(); 
-       JOS.attributeEnd(); 
-     }); 
-   } 
-   
-   void printBinaryImpl(StringRef Label, StringRef Str, ArrayRef<uint8_t> Value, 
-                        bool Block, uint32_t StartOffset = 0) override { 
-     JOS.attributeObject(Label, [&]() { 
-       if (!Str.empty()) 
-         JOS.attribute("Value", Str); 
-       JOS.attribute("Offset", StartOffset); 
-       JOS.attributeArray("Bytes", [&]() { 
-         for (uint8_t Val : Value) 
-           JOS.value(Val); 
-       }); 
-     }); 
-   } 
-   
-   void scopedBegin(ScopeContext ScopeCtx) { 
-     if (ScopeCtx.Context == Scope::Object) 
-       JOS.objectBegin(); 
-     else if (ScopeCtx.Context == Scope::Array) 
-       JOS.arrayBegin(); 
-     ScopeHistory.push_back(ScopeCtx); 
-   } 
-   
-   void scopedBegin(StringRef Label, Scope Ctx) { 
-     ScopeKind Kind = ScopeKind::Attribute; 
-     if (ScopeHistory.empty() || ScopeHistory.back().Context != Scope::Object) { 
-       JOS.objectBegin(); 
-       Kind = ScopeKind::NestedAttribute; 
-     } 
-     JOS.attributeBegin(Label); 
-     scopedBegin({Ctx, Kind}); 
-   } 
-   
-   void scopedEnd() { 
-     ScopeContext ScopeCtx = ScopeHistory.back(); 
-     if (ScopeCtx.Context == Scope::Object) 
-       JOS.objectEnd(); 
-     else if (ScopeCtx.Context == Scope::Array) 
-       JOS.arrayEnd(); 
-     if (ScopeCtx.Kind == ScopeKind::Attribute || 
-         ScopeCtx.Kind == ScopeKind::NestedAttribute) 
-       JOS.attributeEnd(); 
-     if (ScopeCtx.Kind == ScopeKind::NestedAttribute) 
-       JOS.objectEnd(); 
-     ScopeHistory.pop_back(); 
-   } 
- }; 
-   
- struct DelimitedScope { 
-   DelimitedScope(ScopedPrinter &W) : W(&W) {} 
-   DelimitedScope() : W(nullptr) {} 
-   virtual ~DelimitedScope() = default; 
-   virtual void setPrinter(ScopedPrinter &W) = 0; 
-   ScopedPrinter *W; 
- }; 
-   
- struct DictScope : DelimitedScope { 
-   explicit DictScope() = default; 
-   explicit DictScope(ScopedPrinter &W) : DelimitedScope(W) { W.objectBegin(); } 
-   
-   DictScope(ScopedPrinter &W, StringRef N) : DelimitedScope(W) { 
-     W.objectBegin(N); 
-   } 
-   
-   void setPrinter(ScopedPrinter &W) override { 
-     this->W = &W; 
-     W.objectBegin(); 
-   } 
-   
-   ~DictScope() { 
-     if (W) 
-       W->objectEnd(); 
-   } 
- }; 
-   
- struct ListScope : DelimitedScope { 
-   explicit ListScope() = default; 
-   explicit ListScope(ScopedPrinter &W) : DelimitedScope(W) { W.arrayBegin(); } 
-   
-   ListScope(ScopedPrinter &W, StringRef N) : DelimitedScope(W) { 
-     W.arrayBegin(N); 
-   } 
-   
-   void setPrinter(ScopedPrinter &W) override { 
-     this->W = &W; 
-     W.arrayBegin(); 
-   } 
-   
-   ~ListScope() { 
-     if (W) 
-       W->arrayEnd(); 
-   } 
- }; 
-   
- } // namespace llvm 
-   
- #endif 
-