Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Support/YAMLTraits.h b/linux-x64/clang/include/llvm/Support/YAMLTraits.h
new file mode 100644
index 0000000..b874ad5
--- /dev/null
+++ b/linux-x64/clang/include/llvm/Support/YAMLTraits.h
@@ -0,0 +1,1763 @@
+//===- llvm/Support/YAMLTraits.h --------------------------------*- C++ -*-===//
+//
+// The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_YAMLTRAITS_H
+#define LLVM_SUPPORT_YAMLTRAITS_H
+
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/AlignOf.h"
+#include "llvm/Support/Allocator.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/Regex.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/YAMLParser.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cassert>
+#include <cctype>
+#include <cstddef>
+#include <cstdint>
+#include <map>
+#include <memory>
+#include <new>
+#include <string>
+#include <system_error>
+#include <type_traits>
+#include <vector>
+
+namespace llvm {
+namespace yaml {
+
+struct EmptyContext {};
+
+/// This class should be specialized by any type that needs to be converted
+/// to/from a YAML mapping. For example:
+///
+/// struct MappingTraits<MyStruct> {
+/// static void mapping(IO &io, MyStruct &s) {
+/// io.mapRequired("name", s.name);
+/// io.mapRequired("size", s.size);
+/// io.mapOptional("age", s.age);
+/// }
+/// };
+template<class T>
+struct MappingTraits {
+ // Must provide:
+ // static void mapping(IO &io, T &fields);
+ // Optionally may provide:
+ // static StringRef validate(IO &io, T &fields);
+ //
+ // The optional flow flag will cause generated YAML to use a flow mapping
+ // (e.g. { a: 0, b: 1 }):
+ // static const bool flow = true;
+};
+
+/// This class is similar to MappingTraits<T> but allows you to pass in
+/// additional context for each map operation. For example:
+///
+/// struct MappingContextTraits<MyStruct, MyContext> {
+/// static void mapping(IO &io, MyStruct &s, MyContext &c) {
+/// io.mapRequired("name", s.name);
+/// io.mapRequired("size", s.size);
+/// io.mapOptional("age", s.age);
+/// ++c.TimesMapped;
+/// }
+/// };
+template <class T, class Context> struct MappingContextTraits {
+ // Must provide:
+ // static void mapping(IO &io, T &fields, Context &Ctx);
+ // Optionally may provide:
+ // static StringRef validate(IO &io, T &fields, Context &Ctx);
+ //
+ // The optional flow flag will cause generated YAML to use a flow mapping
+ // (e.g. { a: 0, b: 1 }):
+ // static const bool flow = true;
+};
+
+/// This class should be specialized by any integral type that converts
+/// to/from a YAML scalar where there is a one-to-one mapping between
+/// in-memory values and a string in YAML. For example:
+///
+/// struct ScalarEnumerationTraits<Colors> {
+/// static void enumeration(IO &io, Colors &value) {
+/// io.enumCase(value, "red", cRed);
+/// io.enumCase(value, "blue", cBlue);
+/// io.enumCase(value, "green", cGreen);
+/// }
+/// };
+template<typename T>
+struct ScalarEnumerationTraits {
+ // Must provide:
+ // static void enumeration(IO &io, T &value);
+};
+
+/// This class should be specialized by any integer type that is a union
+/// of bit values and the YAML representation is a flow sequence of
+/// strings. For example:
+///
+/// struct ScalarBitSetTraits<MyFlags> {
+/// static void bitset(IO &io, MyFlags &value) {
+/// io.bitSetCase(value, "big", flagBig);
+/// io.bitSetCase(value, "flat", flagFlat);
+/// io.bitSetCase(value, "round", flagRound);
+/// }
+/// };
+template<typename T>
+struct ScalarBitSetTraits {
+ // Must provide:
+ // static void bitset(IO &io, T &value);
+};
+
+/// Describe which type of quotes should be used when quoting is necessary.
+/// Some non-printable characters need to be double-quoted, while some others
+/// are fine with simple-quoting, and some don't need any quoting.
+enum class QuotingType { None, Single, Double };
+
+/// This class should be specialized by type that requires custom conversion
+/// to/from a yaml scalar. For example:
+///
+/// template<>
+/// struct ScalarTraits<MyType> {
+/// static void output(const MyType &val, void*, llvm::raw_ostream &out) {
+/// // stream out custom formatting
+/// out << llvm::format("%x", val);
+/// }
+/// static StringRef input(StringRef scalar, void*, MyType &value) {
+/// // parse scalar and set `value`
+/// // return empty string on success, or error string
+/// return StringRef();
+/// }
+/// static QuotingType mustQuote(StringRef) { return QuotingType::Single; }
+/// };
+template<typename T>
+struct ScalarTraits {
+ // Must provide:
+ //
+ // Function to write the value as a string:
+ //static void output(const T &value, void *ctxt, llvm::raw_ostream &out);
+ //
+ // Function to convert a string to a value. Returns the empty
+ // StringRef on success or an error string if string is malformed:
+ //static StringRef input(StringRef scalar, void *ctxt, T &value);
+ //
+ // Function to determine if the value should be quoted.
+ //static QuotingType mustQuote(StringRef);
+};
+
+/// This class should be specialized by type that requires custom conversion
+/// to/from a YAML literal block scalar. For example:
+///
+/// template <>
+/// struct BlockScalarTraits<MyType> {
+/// static void output(const MyType &Value, void*, llvm::raw_ostream &Out)
+/// {
+/// // stream out custom formatting
+/// Out << Val;
+/// }
+/// static StringRef input(StringRef Scalar, void*, MyType &Value) {
+/// // parse scalar and set `value`
+/// // return empty string on success, or error string
+/// return StringRef();
+/// }
+/// };
+template <typename T>
+struct BlockScalarTraits {
+ // Must provide:
+ //
+ // Function to write the value as a string:
+ // static void output(const T &Value, void *ctx, llvm::raw_ostream &Out);
+ //
+ // Function to convert a string to a value. Returns the empty
+ // StringRef on success or an error string if string is malformed:
+ // static StringRef input(StringRef Scalar, void *ctxt, T &Value);
+};
+
+/// This class should be specialized by any type that needs to be converted
+/// to/from a YAML sequence. For example:
+///
+/// template<>
+/// struct SequenceTraits<MyContainer> {
+/// static size_t size(IO &io, MyContainer &seq) {
+/// return seq.size();
+/// }
+/// static MyType& element(IO &, MyContainer &seq, size_t index) {
+/// if ( index >= seq.size() )
+/// seq.resize(index+1);
+/// return seq[index];
+/// }
+/// };
+template<typename T, typename EnableIf = void>
+struct SequenceTraits {
+ // Must provide:
+ // static size_t size(IO &io, T &seq);
+ // static T::value_type& element(IO &io, T &seq, size_t index);
+ //
+ // The following is option and will cause generated YAML to use
+ // a flow sequence (e.g. [a,b,c]).
+ // static const bool flow = true;
+};
+
+/// This class should be specialized by any type for which vectors of that
+/// type need to be converted to/from a YAML sequence.
+template<typename T, typename EnableIf = void>
+struct SequenceElementTraits {
+ // Must provide:
+ // static const bool flow;
+};
+
+/// This class should be specialized by any type that needs to be converted
+/// to/from a list of YAML documents.
+template<typename T>
+struct DocumentListTraits {
+ // Must provide:
+ // static size_t size(IO &io, T &seq);
+ // static T::value_type& element(IO &io, T &seq, size_t index);
+};
+
+/// This class should be specialized by any type that needs to be converted
+/// to/from a YAML mapping in the case where the names of the keys are not known
+/// in advance, e.g. a string map.
+template <typename T>
+struct CustomMappingTraits {
+ // static void inputOne(IO &io, StringRef key, T &elem);
+ // static void output(IO &io, T &elem);
+};
+
+// Only used for better diagnostics of missing traits
+template <typename T>
+struct MissingTrait;
+
+// Test if ScalarEnumerationTraits<T> is defined on type T.
+template <class T>
+struct has_ScalarEnumerationTraits
+{
+ using Signature_enumeration = void (*)(class IO&, T&);
+
+ template <typename U>
+ static char test(SameType<Signature_enumeration, &U::enumeration>*);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value =
+ (sizeof(test<ScalarEnumerationTraits<T>>(nullptr)) == 1);
+};
+
+// Test if ScalarBitSetTraits<T> is defined on type T.
+template <class T>
+struct has_ScalarBitSetTraits
+{
+ using Signature_bitset = void (*)(class IO&, T&);
+
+ template <typename U>
+ static char test(SameType<Signature_bitset, &U::bitset>*);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value = (sizeof(test<ScalarBitSetTraits<T>>(nullptr)) == 1);
+};
+
+// Test if ScalarTraits<T> is defined on type T.
+template <class T>
+struct has_ScalarTraits
+{
+ using Signature_input = StringRef (*)(StringRef, void*, T&);
+ using Signature_output = void (*)(const T&, void*, raw_ostream&);
+ using Signature_mustQuote = QuotingType (*)(StringRef);
+
+ template <typename U>
+ static char test(SameType<Signature_input, &U::input> *,
+ SameType<Signature_output, &U::output> *,
+ SameType<Signature_mustQuote, &U::mustQuote> *);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value =
+ (sizeof(test<ScalarTraits<T>>(nullptr, nullptr, nullptr)) == 1);
+};
+
+// Test if BlockScalarTraits<T> is defined on type T.
+template <class T>
+struct has_BlockScalarTraits
+{
+ using Signature_input = StringRef (*)(StringRef, void *, T &);
+ using Signature_output = void (*)(const T &, void *, raw_ostream &);
+
+ template <typename U>
+ static char test(SameType<Signature_input, &U::input> *,
+ SameType<Signature_output, &U::output> *);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value =
+ (sizeof(test<BlockScalarTraits<T>>(nullptr, nullptr)) == 1);
+};
+
+// Test if MappingContextTraits<T> is defined on type T.
+template <class T, class Context> struct has_MappingTraits {
+ using Signature_mapping = void (*)(class IO &, T &, Context &);
+
+ template <typename U>
+ static char test(SameType<Signature_mapping, &U::mapping>*);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value =
+ (sizeof(test<MappingContextTraits<T, Context>>(nullptr)) == 1);
+};
+
+// Test if MappingTraits<T> is defined on type T.
+template <class T> struct has_MappingTraits<T, EmptyContext> {
+ using Signature_mapping = void (*)(class IO &, T &);
+
+ template <typename U>
+ static char test(SameType<Signature_mapping, &U::mapping> *);
+
+ template <typename U> static double test(...);
+
+public:
+ static bool const value = (sizeof(test<MappingTraits<T>>(nullptr)) == 1);
+};
+
+// Test if MappingContextTraits<T>::validate() is defined on type T.
+template <class T, class Context> struct has_MappingValidateTraits {
+ using Signature_validate = StringRef (*)(class IO &, T &, Context &);
+
+ template <typename U>
+ static char test(SameType<Signature_validate, &U::validate>*);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value =
+ (sizeof(test<MappingContextTraits<T, Context>>(nullptr)) == 1);
+};
+
+// Test if MappingTraits<T>::validate() is defined on type T.
+template <class T> struct has_MappingValidateTraits<T, EmptyContext> {
+ using Signature_validate = StringRef (*)(class IO &, T &);
+
+ template <typename U>
+ static char test(SameType<Signature_validate, &U::validate> *);
+
+ template <typename U> static double test(...);
+
+public:
+ static bool const value = (sizeof(test<MappingTraits<T>>(nullptr)) == 1);
+};
+
+// Test if SequenceTraits<T> is defined on type T.
+template <class T>
+struct has_SequenceMethodTraits
+{
+ using Signature_size = size_t (*)(class IO&, T&);
+
+ template <typename U>
+ static char test(SameType<Signature_size, &U::size>*);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value = (sizeof(test<SequenceTraits<T>>(nullptr)) == 1);
+};
+
+// Test if CustomMappingTraits<T> is defined on type T.
+template <class T>
+struct has_CustomMappingTraits
+{
+ using Signature_input = void (*)(IO &io, StringRef key, T &v);
+
+ template <typename U>
+ static char test(SameType<Signature_input, &U::inputOne>*);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value =
+ (sizeof(test<CustomMappingTraits<T>>(nullptr)) == 1);
+};
+
+// has_FlowTraits<int> will cause an error with some compilers because
+// it subclasses int. Using this wrapper only instantiates the
+// real has_FlowTraits only if the template type is a class.
+template <typename T, bool Enabled = std::is_class<T>::value>
+class has_FlowTraits
+{
+public:
+ static const bool value = false;
+};
+
+// Some older gcc compilers don't support straight forward tests
+// for members, so test for ambiguity cause by the base and derived
+// classes both defining the member.
+template <class T>
+struct has_FlowTraits<T, true>
+{
+ struct Fallback { bool flow; };
+ struct Derived : T, Fallback { };
+
+ template<typename C>
+ static char (&f(SameType<bool Fallback::*, &C::flow>*))[1];
+
+ template<typename C>
+ static char (&f(...))[2];
+
+public:
+ static bool const value = sizeof(f<Derived>(nullptr)) == 2;
+};
+
+// Test if SequenceTraits<T> is defined on type T
+template<typename T>
+struct has_SequenceTraits : public std::integral_constant<bool,
+ has_SequenceMethodTraits<T>::value > { };
+
+// Test if DocumentListTraits<T> is defined on type T
+template <class T>
+struct has_DocumentListTraits
+{
+ using Signature_size = size_t (*)(class IO &, T &);
+
+ template <typename U>
+ static char test(SameType<Signature_size, &U::size>*);
+
+ template <typename U>
+ static double test(...);
+
+public:
+ static bool const value = (sizeof(test<DocumentListTraits<T>>(nullptr))==1);
+};
+
+inline bool isNumber(StringRef S) {
+ static const char OctalChars[] = "01234567";
+ if (S.startswith("0") &&
+ S.drop_front().find_first_not_of(OctalChars) == StringRef::npos)
+ return true;
+
+ if (S.startswith("0o") &&
+ S.drop_front(2).find_first_not_of(OctalChars) == StringRef::npos)
+ return true;
+
+ static const char HexChars[] = "0123456789abcdefABCDEF";
+ if (S.startswith("0x") &&
+ S.drop_front(2).find_first_not_of(HexChars) == StringRef::npos)
+ return true;
+
+ static const char DecChars[] = "0123456789";
+ if (S.find_first_not_of(DecChars) == StringRef::npos)
+ return true;
+
+ if (S.equals(".inf") || S.equals(".Inf") || S.equals(".INF"))
+ return true;
+
+ Regex FloatMatcher("^(\\.[0-9]+|[0-9]+(\\.[0-9]*)?)([eE][-+]?[0-9]+)?$");
+ if (FloatMatcher.match(S))
+ return true;
+
+ return false;
+}
+
+inline bool isNumeric(StringRef S) {
+ if ((S.front() == '-' || S.front() == '+') && isNumber(S.drop_front()))
+ return true;
+
+ if (isNumber(S))
+ return true;
+
+ if (S.equals(".nan") || S.equals(".NaN") || S.equals(".NAN"))
+ return true;
+
+ return false;
+}
+
+inline bool isNull(StringRef S) {
+ return S.equals("null") || S.equals("Null") || S.equals("NULL") ||
+ S.equals("~");
+}
+
+inline bool isBool(StringRef S) {
+ return S.equals("true") || S.equals("True") || S.equals("TRUE") ||
+ S.equals("false") || S.equals("False") || S.equals("FALSE");
+}
+
+// 5.1. Character Set
+// The allowed character range explicitly excludes the C0 control block #x0-#x1F
+// (except for TAB #x9, LF #xA, and CR #xD which are allowed), DEL #x7F, the C1
+// control block #x80-#x9F (except for NEL #x85 which is allowed), the surrogate
+// block #xD800-#xDFFF, #xFFFE, and #xFFFF.
+inline QuotingType needsQuotes(StringRef S) {
+ if (S.empty())
+ return QuotingType::Single;
+ if (isspace(S.front()) || isspace(S.back()))
+ return QuotingType::Single;
+ if (isNull(S))
+ return QuotingType::Single;
+ if (isBool(S))
+ return QuotingType::Single;
+ if (isNumeric(S))
+ return QuotingType::Single;
+
+ // 7.3.3 Plain Style
+ // Plain scalars must not begin with most indicators, as this would cause
+ // ambiguity with other YAML constructs.
+ static constexpr char Indicators[] = R"(-?:\,[]{}#&*!|>'"%@`)";
+ if (S.find_first_of(Indicators) == 0)
+ return QuotingType::Single;
+
+ QuotingType MaxQuotingNeeded = QuotingType::None;
+ for (unsigned char C : S) {
+ // Alphanum is safe.
+ if (isAlnum(C))
+ continue;
+
+ switch (C) {
+ // Safe scalar characters.
+ case '_':
+ case '-':
+ case '/':
+ case '^':
+ case '.':
+ case ',':
+ case ' ':
+ // TAB (0x9), LF (0xA), CR (0xD) and NEL (0x85) are allowed.
+ case 0x9:
+ case 0xA:
+ case 0xD:
+ case 0x85:
+ continue;
+ // DEL (0x7F) are excluded from the allowed character range.
+ case 0x7F:
+ return QuotingType::Double;
+ default: {
+ // C0 control block (0x0 - 0x1F) is excluded from the allowed character
+ // range.
+ if (C <= 0x1F)
+ return QuotingType::Double;
+
+ // Always double quote UTF-8.
+ if ((C & 0x80) != 0)
+ return QuotingType::Double;
+
+ // The character is not safe, at least simple quoting needed.
+ MaxQuotingNeeded = QuotingType::Single;
+ }
+ }
+ }
+
+ return MaxQuotingNeeded;
+}
+
+template <typename T, typename Context>
+struct missingTraits
+ : public std::integral_constant<bool,
+ !has_ScalarEnumerationTraits<T>::value &&
+ !has_ScalarBitSetTraits<T>::value &&
+ !has_ScalarTraits<T>::value &&
+ !has_BlockScalarTraits<T>::value &&
+ !has_MappingTraits<T, Context>::value &&
+ !has_SequenceTraits<T>::value &&
+ !has_CustomMappingTraits<T>::value &&
+ !has_DocumentListTraits<T>::value> {};
+
+template <typename T, typename Context>
+struct validatedMappingTraits
+ : public std::integral_constant<
+ bool, has_MappingTraits<T, Context>::value &&
+ has_MappingValidateTraits<T, Context>::value> {};
+
+template <typename T, typename Context>
+struct unvalidatedMappingTraits
+ : public std::integral_constant<
+ bool, has_MappingTraits<T, Context>::value &&
+ !has_MappingValidateTraits<T, Context>::value> {};
+
+// Base class for Input and Output.
+class IO {
+public:
+ IO(void *Ctxt = nullptr);
+ virtual ~IO();
+
+ virtual bool outputting() = 0;
+
+ virtual unsigned beginSequence() = 0;
+ virtual bool preflightElement(unsigned, void *&) = 0;
+ virtual void postflightElement(void*) = 0;
+ virtual void endSequence() = 0;
+ virtual bool canElideEmptySequence() = 0;
+
+ virtual unsigned beginFlowSequence() = 0;
+ virtual bool preflightFlowElement(unsigned, void *&) = 0;
+ virtual void postflightFlowElement(void*) = 0;
+ virtual void endFlowSequence() = 0;
+
+ virtual bool mapTag(StringRef Tag, bool Default=false) = 0;
+ virtual void beginMapping() = 0;
+ virtual void endMapping() = 0;
+ virtual bool preflightKey(const char*, bool, bool, bool &, void *&) = 0;
+ virtual void postflightKey(void*) = 0;
+ virtual std::vector<StringRef> keys() = 0;
+
+ virtual void beginFlowMapping() = 0;
+ virtual void endFlowMapping() = 0;
+
+ virtual void beginEnumScalar() = 0;
+ virtual bool matchEnumScalar(const char*, bool) = 0;
+ virtual bool matchEnumFallback() = 0;
+ virtual void endEnumScalar() = 0;
+
+ virtual bool beginBitSetScalar(bool &) = 0;
+ virtual bool bitSetMatch(const char*, bool) = 0;
+ virtual void endBitSetScalar() = 0;
+
+ virtual void scalarString(StringRef &, QuotingType) = 0;
+ virtual void blockScalarString(StringRef &) = 0;
+
+ virtual void setError(const Twine &) = 0;
+
+ template <typename T>
+ void enumCase(T &Val, const char* Str, const T ConstVal) {
+ if ( matchEnumScalar(Str, outputting() && Val == ConstVal) ) {
+ Val = ConstVal;
+ }
+ }
+
+ // allow anonymous enum values to be used with LLVM_YAML_STRONG_TYPEDEF
+ template <typename T>
+ void enumCase(T &Val, const char* Str, const uint32_t ConstVal) {
+ if ( matchEnumScalar(Str, outputting() && Val == static_cast<T>(ConstVal)) ) {
+ Val = ConstVal;
+ }
+ }
+
+ template <typename FBT, typename T>
+ void enumFallback(T &Val) {
+ if (matchEnumFallback()) {
+ EmptyContext Context;
+ // FIXME: Force integral conversion to allow strong typedefs to convert.
+ FBT Res = static_cast<typename FBT::BaseType>(Val);
+ yamlize(*this, Res, true, Context);
+ Val = static_cast<T>(static_cast<typename FBT::BaseType>(Res));
+ }
+ }
+
+ template <typename T>
+ void bitSetCase(T &Val, const char* Str, const T ConstVal) {
+ if ( bitSetMatch(Str, outputting() && (Val & ConstVal) == ConstVal) ) {
+ Val = static_cast<T>(Val | ConstVal);
+ }
+ }
+
+ // allow anonymous enum values to be used with LLVM_YAML_STRONG_TYPEDEF
+ template <typename T>
+ void bitSetCase(T &Val, const char* Str, const uint32_t ConstVal) {
+ if ( bitSetMatch(Str, outputting() && (Val & ConstVal) == ConstVal) ) {
+ Val = static_cast<T>(Val | ConstVal);
+ }
+ }
+
+ template <typename T>
+ void maskedBitSetCase(T &Val, const char *Str, T ConstVal, T Mask) {
+ if (bitSetMatch(Str, outputting() && (Val & Mask) == ConstVal))
+ Val = Val | ConstVal;
+ }
+
+ template <typename T>
+ void maskedBitSetCase(T &Val, const char *Str, uint32_t ConstVal,
+ uint32_t Mask) {
+ if (bitSetMatch(Str, outputting() && (Val & Mask) == ConstVal))
+ Val = Val | ConstVal;
+ }
+
+ void *getContext();
+ void setContext(void *);
+
+ template <typename T> void mapRequired(const char *Key, T &Val) {
+ EmptyContext Ctx;
+ this->processKey(Key, Val, true, Ctx);
+ }
+
+ template <typename T, typename Context>
+ void mapRequired(const char *Key, T &Val, Context &Ctx) {
+ this->processKey(Key, Val, true, Ctx);
+ }
+
+ template <typename T> void mapOptional(const char *Key, T &Val) {
+ EmptyContext Ctx;
+ mapOptionalWithContext(Key, Val, Ctx);
+ }
+
+ template <typename T>
+ void mapOptional(const char *Key, T &Val, const T &Default) {
+ EmptyContext Ctx;
+ mapOptionalWithContext(Key, Val, Default, Ctx);
+ }
+
+ template <typename T, typename Context>
+ typename std::enable_if<has_SequenceTraits<T>::value, void>::type
+ mapOptionalWithContext(const char *Key, T &Val, Context &Ctx) {
+ // omit key/value instead of outputting empty sequence
+ if (this->canElideEmptySequence() && !(Val.begin() != Val.end()))
+ return;
+ this->processKey(Key, Val, false, Ctx);
+ }
+
+ template <typename T, typename Context>
+ void mapOptionalWithContext(const char *Key, Optional<T> &Val, Context &Ctx) {
+ this->processKeyWithDefault(Key, Val, Optional<T>(), /*Required=*/false,
+ Ctx);
+ }
+
+ template <typename T, typename Context>
+ typename std::enable_if<!has_SequenceTraits<T>::value, void>::type
+ mapOptionalWithContext(const char *Key, T &Val, Context &Ctx) {
+ this->processKey(Key, Val, false, Ctx);
+ }
+
+ template <typename T, typename Context>
+ void mapOptionalWithContext(const char *Key, T &Val, const T &Default,
+ Context &Ctx) {
+ this->processKeyWithDefault(Key, Val, Default, false, Ctx);
+ }
+
+private:
+ template <typename T, typename Context>
+ void processKeyWithDefault(const char *Key, Optional<T> &Val,
+ const Optional<T> &DefaultValue, bool Required,
+ Context &Ctx) {
+ assert(DefaultValue.hasValue() == false &&
+ "Optional<T> shouldn't have a value!");
+ void *SaveInfo;
+ bool UseDefault = true;
+ const bool sameAsDefault = outputting() && !Val.hasValue();
+ if (!outputting() && !Val.hasValue())
+ Val = T();
+ if (Val.hasValue() &&
+ this->preflightKey(Key, Required, sameAsDefault, UseDefault,
+ SaveInfo)) {
+ yamlize(*this, Val.getValue(), Required, Ctx);
+ this->postflightKey(SaveInfo);
+ } else {
+ if (UseDefault)
+ Val = DefaultValue;
+ }
+ }
+
+ template <typename T, typename Context>
+ void processKeyWithDefault(const char *Key, T &Val, const T &DefaultValue,
+ bool Required, Context &Ctx) {
+ void *SaveInfo;
+ bool UseDefault;
+ const bool sameAsDefault = outputting() && Val == DefaultValue;
+ if ( this->preflightKey(Key, Required, sameAsDefault, UseDefault,
+ SaveInfo) ) {
+ yamlize(*this, Val, Required, Ctx);
+ this->postflightKey(SaveInfo);
+ }
+ else {
+ if ( UseDefault )
+ Val = DefaultValue;
+ }
+ }
+
+ template <typename T, typename Context>
+ void processKey(const char *Key, T &Val, bool Required, Context &Ctx) {
+ void *SaveInfo;
+ bool UseDefault;
+ if ( this->preflightKey(Key, Required, false, UseDefault, SaveInfo) ) {
+ yamlize(*this, Val, Required, Ctx);
+ this->postflightKey(SaveInfo);
+ }
+ }
+
+private:
+ void *Ctxt;
+};
+
+namespace detail {
+
+template <typename T, typename Context>
+void doMapping(IO &io, T &Val, Context &Ctx) {
+ MappingContextTraits<T, Context>::mapping(io, Val, Ctx);
+}
+
+template <typename T> void doMapping(IO &io, T &Val, EmptyContext &Ctx) {
+ MappingTraits<T>::mapping(io, Val);
+}
+
+} // end namespace detail
+
+template <typename T>
+typename std::enable_if<has_ScalarEnumerationTraits<T>::value, void>::type
+yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
+ io.beginEnumScalar();
+ ScalarEnumerationTraits<T>::enumeration(io, Val);
+ io.endEnumScalar();
+}
+
+template <typename T>
+typename std::enable_if<has_ScalarBitSetTraits<T>::value, void>::type
+yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
+ bool DoClear;
+ if ( io.beginBitSetScalar(DoClear) ) {
+ if ( DoClear )
+ Val = static_cast<T>(0);
+ ScalarBitSetTraits<T>::bitset(io, Val);
+ io.endBitSetScalar();
+ }
+}
+
+template <typename T>
+typename std::enable_if<has_ScalarTraits<T>::value, void>::type
+yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
+ if ( io.outputting() ) {
+ std::string Storage;
+ raw_string_ostream Buffer(Storage);
+ ScalarTraits<T>::output(Val, io.getContext(), Buffer);
+ StringRef Str = Buffer.str();
+ io.scalarString(Str, ScalarTraits<T>::mustQuote(Str));
+ }
+ else {
+ StringRef Str;
+ io.scalarString(Str, ScalarTraits<T>::mustQuote(Str));
+ StringRef Result = ScalarTraits<T>::input(Str, io.getContext(), Val);
+ if ( !Result.empty() ) {
+ io.setError(Twine(Result));
+ }
+ }
+}
+
+template <typename T>
+typename std::enable_if<has_BlockScalarTraits<T>::value, void>::type
+yamlize(IO &YamlIO, T &Val, bool, EmptyContext &Ctx) {
+ if (YamlIO.outputting()) {
+ std::string Storage;
+ raw_string_ostream Buffer(Storage);
+ BlockScalarTraits<T>::output(Val, YamlIO.getContext(), Buffer);
+ StringRef Str = Buffer.str();
+ YamlIO.blockScalarString(Str);
+ } else {
+ StringRef Str;
+ YamlIO.blockScalarString(Str);
+ StringRef Result =
+ BlockScalarTraits<T>::input(Str, YamlIO.getContext(), Val);
+ if (!Result.empty())
+ YamlIO.setError(Twine(Result));
+ }
+}
+
+template <typename T, typename Context>
+typename std::enable_if<validatedMappingTraits<T, Context>::value, void>::type
+yamlize(IO &io, T &Val, bool, Context &Ctx) {
+ if (has_FlowTraits<MappingTraits<T>>::value)
+ io.beginFlowMapping();
+ else
+ io.beginMapping();
+ if (io.outputting()) {
+ StringRef Err = MappingTraits<T>::validate(io, Val);
+ if (!Err.empty()) {
+ errs() << Err << "\n";
+ assert(Err.empty() && "invalid struct trying to be written as yaml");
+ }
+ }
+ detail::doMapping(io, Val, Ctx);
+ if (!io.outputting()) {
+ StringRef Err = MappingTraits<T>::validate(io, Val);
+ if (!Err.empty())
+ io.setError(Err);
+ }
+ if (has_FlowTraits<MappingTraits<T>>::value)
+ io.endFlowMapping();
+ else
+ io.endMapping();
+}
+
+template <typename T, typename Context>
+typename std::enable_if<unvalidatedMappingTraits<T, Context>::value, void>::type
+yamlize(IO &io, T &Val, bool, Context &Ctx) {
+ if (has_FlowTraits<MappingTraits<T>>::value) {
+ io.beginFlowMapping();
+ detail::doMapping(io, Val, Ctx);
+ io.endFlowMapping();
+ } else {
+ io.beginMapping();
+ detail::doMapping(io, Val, Ctx);
+ io.endMapping();
+ }
+}
+
+template <typename T>
+typename std::enable_if<has_CustomMappingTraits<T>::value, void>::type
+yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
+ if ( io.outputting() ) {
+ io.beginMapping();
+ CustomMappingTraits<T>::output(io, Val);
+ io.endMapping();
+ } else {
+ io.beginMapping();
+ for (StringRef key : io.keys())
+ CustomMappingTraits<T>::inputOne(io, key, Val);
+ io.endMapping();
+ }
+}
+
+template <typename T>
+typename std::enable_if<missingTraits<T, EmptyContext>::value, void>::type
+yamlize(IO &io, T &Val, bool, EmptyContext &Ctx) {
+ char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
+}
+
+template <typename T, typename Context>
+typename std::enable_if<has_SequenceTraits<T>::value, void>::type
+yamlize(IO &io, T &Seq, bool, Context &Ctx) {
+ if ( has_FlowTraits< SequenceTraits<T>>::value ) {
+ unsigned incnt = io.beginFlowSequence();
+ unsigned count = io.outputting() ? SequenceTraits<T>::size(io, Seq) : incnt;
+ for(unsigned i=0; i < count; ++i) {
+ void *SaveInfo;
+ if ( io.preflightFlowElement(i, SaveInfo) ) {
+ yamlize(io, SequenceTraits<T>::element(io, Seq, i), true, Ctx);
+ io.postflightFlowElement(SaveInfo);
+ }
+ }
+ io.endFlowSequence();
+ }
+ else {
+ unsigned incnt = io.beginSequence();
+ unsigned count = io.outputting() ? SequenceTraits<T>::size(io, Seq) : incnt;
+ for(unsigned i=0; i < count; ++i) {
+ void *SaveInfo;
+ if ( io.preflightElement(i, SaveInfo) ) {
+ yamlize(io, SequenceTraits<T>::element(io, Seq, i), true, Ctx);
+ io.postflightElement(SaveInfo);
+ }
+ }
+ io.endSequence();
+ }
+}
+
+template<>
+struct ScalarTraits<bool> {
+ static void output(const bool &, void* , raw_ostream &);
+ static StringRef input(StringRef, void *, bool &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<StringRef> {
+ static void output(const StringRef &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, StringRef &);
+ static QuotingType mustQuote(StringRef S) { return needsQuotes(S); }
+};
+
+template<>
+struct ScalarTraits<std::string> {
+ static void output(const std::string &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, std::string &);
+ static QuotingType mustQuote(StringRef S) { return needsQuotes(S); }
+};
+
+template<>
+struct ScalarTraits<uint8_t> {
+ static void output(const uint8_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, uint8_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<uint16_t> {
+ static void output(const uint16_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, uint16_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<uint32_t> {
+ static void output(const uint32_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, uint32_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<uint64_t> {
+ static void output(const uint64_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, uint64_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<int8_t> {
+ static void output(const int8_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, int8_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<int16_t> {
+ static void output(const int16_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, int16_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<int32_t> {
+ static void output(const int32_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, int32_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<int64_t> {
+ static void output(const int64_t &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, int64_t &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<float> {
+ static void output(const float &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, float &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<double> {
+ static void output(const double &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, double &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+// For endian types, we just use the existing ScalarTraits for the underlying
+// type. This way endian aware types are supported whenever a ScalarTraits
+// is defined for the underlying type.
+template <typename value_type, support::endianness endian, size_t alignment>
+struct ScalarTraits<support::detail::packed_endian_specific_integral<
+ value_type, endian, alignment>> {
+ using endian_type =
+ support::detail::packed_endian_specific_integral<value_type, endian,
+ alignment>;
+
+ static void output(const endian_type &E, void *Ctx, raw_ostream &Stream) {
+ ScalarTraits<value_type>::output(static_cast<value_type>(E), Ctx, Stream);
+ }
+
+ static StringRef input(StringRef Str, void *Ctx, endian_type &E) {
+ value_type V;
+ auto R = ScalarTraits<value_type>::input(Str, Ctx, V);
+ E = static_cast<endian_type>(V);
+ return R;
+ }
+
+ static QuotingType mustQuote(StringRef Str) {
+ return ScalarTraits<value_type>::mustQuote(Str);
+ }
+};
+
+// Utility for use within MappingTraits<>::mapping() method
+// to [de]normalize an object for use with YAML conversion.
+template <typename TNorm, typename TFinal>
+struct MappingNormalization {
+ MappingNormalization(IO &i_o, TFinal &Obj)
+ : io(i_o), BufPtr(nullptr), Result(Obj) {
+ if ( io.outputting() ) {
+ BufPtr = new (&Buffer) TNorm(io, Obj);
+ }
+ else {
+ BufPtr = new (&Buffer) TNorm(io);
+ }
+ }
+
+ ~MappingNormalization() {
+ if ( ! io.outputting() ) {
+ Result = BufPtr->denormalize(io);
+ }
+ BufPtr->~TNorm();
+ }
+
+ TNorm* operator->() { return BufPtr; }
+
+private:
+ using Storage = AlignedCharArrayUnion<TNorm>;
+
+ Storage Buffer;
+ IO &io;
+ TNorm *BufPtr;
+ TFinal &Result;
+};
+
+// Utility for use within MappingTraits<>::mapping() method
+// to [de]normalize an object for use with YAML conversion.
+template <typename TNorm, typename TFinal>
+struct MappingNormalizationHeap {
+ MappingNormalizationHeap(IO &i_o, TFinal &Obj, BumpPtrAllocator *allocator)
+ : io(i_o), Result(Obj) {
+ if ( io.outputting() ) {
+ BufPtr = new (&Buffer) TNorm(io, Obj);
+ }
+ else if (allocator) {
+ BufPtr = allocator->Allocate<TNorm>();
+ new (BufPtr) TNorm(io);
+ } else {
+ BufPtr = new TNorm(io);
+ }
+ }
+
+ ~MappingNormalizationHeap() {
+ if ( io.outputting() ) {
+ BufPtr->~TNorm();
+ }
+ else {
+ Result = BufPtr->denormalize(io);
+ }
+ }
+
+ TNorm* operator->() { return BufPtr; }
+
+private:
+ using Storage = AlignedCharArrayUnion<TNorm>;
+
+ Storage Buffer;
+ IO &io;
+ TNorm *BufPtr = nullptr;
+ TFinal &Result;
+};
+
+///
+/// The Input class is used to parse a yaml document into in-memory structs
+/// and vectors.
+///
+/// It works by using YAMLParser to do a syntax parse of the entire yaml
+/// document, then the Input class builds a graph of HNodes which wraps
+/// each yaml Node. The extra layer is buffering. The low level yaml
+/// parser only lets you look at each node once. The buffering layer lets
+/// you search and interate multiple times. This is necessary because
+/// the mapRequired() method calls may not be in the same order
+/// as the keys in the document.
+///
+class Input : public IO {
+public:
+ // Construct a yaml Input object from a StringRef and optional
+ // user-data. The DiagHandler can be specified to provide
+ // alternative error reporting.
+ Input(StringRef InputContent,
+ void *Ctxt = nullptr,
+ SourceMgr::DiagHandlerTy DiagHandler = nullptr,
+ void *DiagHandlerCtxt = nullptr);
+ Input(MemoryBufferRef Input,
+ void *Ctxt = nullptr,
+ SourceMgr::DiagHandlerTy DiagHandler = nullptr,
+ void *DiagHandlerCtxt = nullptr);
+ ~Input() override;
+
+ // Check if there was an syntax or semantic error during parsing.
+ std::error_code error();
+
+private:
+ bool outputting() override;
+ bool mapTag(StringRef, bool) override;
+ void beginMapping() override;
+ void endMapping() override;
+ bool preflightKey(const char *, bool, bool, bool &, void *&) override;
+ void postflightKey(void *) override;
+ std::vector<StringRef> keys() override;
+ void beginFlowMapping() override;
+ void endFlowMapping() override;
+ unsigned beginSequence() override;
+ void endSequence() override;
+ bool preflightElement(unsigned index, void *&) override;
+ void postflightElement(void *) override;
+ unsigned beginFlowSequence() override;
+ bool preflightFlowElement(unsigned , void *&) override;
+ void postflightFlowElement(void *) override;
+ void endFlowSequence() override;
+ void beginEnumScalar() override;
+ bool matchEnumScalar(const char*, bool) override;
+ bool matchEnumFallback() override;
+ void endEnumScalar() override;
+ bool beginBitSetScalar(bool &) override;
+ bool bitSetMatch(const char *, bool ) override;
+ void endBitSetScalar() override;
+ void scalarString(StringRef &, QuotingType) override;
+ void blockScalarString(StringRef &) override;
+ void setError(const Twine &message) override;
+ bool canElideEmptySequence() override;
+
+ class HNode {
+ virtual void anchor();
+
+ public:
+ HNode(Node *n) : _node(n) { }
+ virtual ~HNode() = default;
+
+ static bool classof(const HNode *) { return true; }
+
+ Node *_node;
+ };
+
+ class EmptyHNode : public HNode {
+ void anchor() override;
+
+ public:
+ EmptyHNode(Node *n) : HNode(n) { }
+
+ static bool classof(const HNode *n) { return NullNode::classof(n->_node); }
+
+ static bool classof(const EmptyHNode *) { return true; }
+ };
+
+ class ScalarHNode : public HNode {
+ void anchor() override;
+
+ public:
+ ScalarHNode(Node *n, StringRef s) : HNode(n), _value(s) { }
+
+ StringRef value() const { return _value; }
+
+ static bool classof(const HNode *n) {
+ return ScalarNode::classof(n->_node) ||
+ BlockScalarNode::classof(n->_node);
+ }
+
+ static bool classof(const ScalarHNode *) { return true; }
+
+ protected:
+ StringRef _value;
+ };
+
+ class MapHNode : public HNode {
+ void anchor() override;
+
+ public:
+ MapHNode(Node *n) : HNode(n) { }
+
+ static bool classof(const HNode *n) {
+ return MappingNode::classof(n->_node);
+ }
+
+ static bool classof(const MapHNode *) { return true; }
+
+ using NameToNode = StringMap<std::unique_ptr<HNode>>;
+
+ NameToNode Mapping;
+ SmallVector<std::string, 6> ValidKeys;
+ };
+
+ class SequenceHNode : public HNode {
+ void anchor() override;
+
+ public:
+ SequenceHNode(Node *n) : HNode(n) { }
+
+ static bool classof(const HNode *n) {
+ return SequenceNode::classof(n->_node);
+ }
+
+ static bool classof(const SequenceHNode *) { return true; }
+
+ std::vector<std::unique_ptr<HNode>> Entries;
+ };
+
+ std::unique_ptr<Input::HNode> createHNodes(Node *node);
+ void setError(HNode *hnode, const Twine &message);
+ void setError(Node *node, const Twine &message);
+
+public:
+ // These are only used by operator>>. They could be private
+ // if those templated things could be made friends.
+ bool setCurrentDocument();
+ bool nextDocument();
+
+ /// Returns the current node that's being parsed by the YAML Parser.
+ const Node *getCurrentNode() const;
+
+private:
+ SourceMgr SrcMgr; // must be before Strm
+ std::unique_ptr<llvm::yaml::Stream> Strm;
+ std::unique_ptr<HNode> TopNode;
+ std::error_code EC;
+ BumpPtrAllocator StringAllocator;
+ document_iterator DocIterator;
+ std::vector<bool> BitValuesUsed;
+ HNode *CurrentNode = nullptr;
+ bool ScalarMatchFound;
+};
+
+///
+/// The Output class is used to generate a yaml document from in-memory structs
+/// and vectors.
+///
+class Output : public IO {
+public:
+ Output(raw_ostream &, void *Ctxt = nullptr, int WrapColumn = 70);
+ ~Output() override;
+
+ /// \brief Set whether or not to output optional values which are equal
+ /// to the default value. By default, when outputting if you attempt
+ /// to write a value that is equal to the default, the value gets ignored.
+ /// Sometimes, it is useful to be able to see these in the resulting YAML
+ /// anyway.
+ void setWriteDefaultValues(bool Write) { WriteDefaultValues = Write; }
+
+ bool outputting() override;
+ bool mapTag(StringRef, bool) override;
+ void beginMapping() override;
+ void endMapping() override;
+ bool preflightKey(const char *key, bool, bool, bool &, void *&) override;
+ void postflightKey(void *) override;
+ std::vector<StringRef> keys() override;
+ void beginFlowMapping() override;
+ void endFlowMapping() override;
+ unsigned beginSequence() override;
+ void endSequence() override;
+ bool preflightElement(unsigned, void *&) override;
+ void postflightElement(void *) override;
+ unsigned beginFlowSequence() override;
+ bool preflightFlowElement(unsigned, void *&) override;
+ void postflightFlowElement(void *) override;
+ void endFlowSequence() override;
+ void beginEnumScalar() override;
+ bool matchEnumScalar(const char*, bool) override;
+ bool matchEnumFallback() override;
+ void endEnumScalar() override;
+ bool beginBitSetScalar(bool &) override;
+ bool bitSetMatch(const char *, bool ) override;
+ void endBitSetScalar() override;
+ void scalarString(StringRef &, QuotingType) override;
+ void blockScalarString(StringRef &) override;
+ void setError(const Twine &message) override;
+ bool canElideEmptySequence() override;
+
+ // These are only used by operator<<. They could be private
+ // if that templated operator could be made a friend.
+ void beginDocuments();
+ bool preflightDocument(unsigned);
+ void postflightDocument();
+ void endDocuments();
+
+private:
+ void output(StringRef s);
+ void outputUpToEndOfLine(StringRef s);
+ void newLineCheck();
+ void outputNewLine();
+ void paddedKey(StringRef key);
+ void flowKey(StringRef Key);
+
+ enum InState {
+ inSeq,
+ inFlowSeq,
+ inMapFirstKey,
+ inMapOtherKey,
+ inFlowMapFirstKey,
+ inFlowMapOtherKey
+ };
+
+ raw_ostream &Out;
+ int WrapColumn;
+ SmallVector<InState, 8> StateStack;
+ int Column = 0;
+ int ColumnAtFlowStart = 0;
+ int ColumnAtMapFlowStart = 0;
+ bool NeedBitValueComma = false;
+ bool NeedFlowSequenceComma = false;
+ bool EnumerationMatchFound = false;
+ bool NeedsNewLine = false;
+ bool WriteDefaultValues = false;
+};
+
+/// YAML I/O does conversion based on types. But often native data types
+/// are just a typedef of built in intergral types (e.g. int). But the C++
+/// type matching system sees through the typedef and all the typedefed types
+/// look like a built in type. This will cause the generic YAML I/O conversion
+/// to be used. To provide better control over the YAML conversion, you can
+/// use this macro instead of typedef. It will create a class with one field
+/// and automatic conversion operators to and from the base type.
+/// Based on BOOST_STRONG_TYPEDEF
+#define LLVM_YAML_STRONG_TYPEDEF(_base, _type) \
+ struct _type { \
+ _type() = default; \
+ _type(const _base v) : value(v) {} \
+ _type(const _type &v) = default; \
+ _type &operator=(const _type &rhs) = default; \
+ _type &operator=(const _base &rhs) { value = rhs; return *this; } \
+ operator const _base & () const { return value; } \
+ bool operator==(const _type &rhs) const { return value == rhs.value; } \
+ bool operator==(const _base &rhs) const { return value == rhs; } \
+ bool operator<(const _type &rhs) const { return value < rhs.value; } \
+ _base value; \
+ using BaseType = _base; \
+ };
+
+///
+/// Use these types instead of uintXX_t in any mapping to have
+/// its yaml output formatted as hexadecimal.
+///
+LLVM_YAML_STRONG_TYPEDEF(uint8_t, Hex8)
+LLVM_YAML_STRONG_TYPEDEF(uint16_t, Hex16)
+LLVM_YAML_STRONG_TYPEDEF(uint32_t, Hex32)
+LLVM_YAML_STRONG_TYPEDEF(uint64_t, Hex64)
+
+template<>
+struct ScalarTraits<Hex8> {
+ static void output(const Hex8 &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, Hex8 &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<Hex16> {
+ static void output(const Hex16 &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, Hex16 &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<Hex32> {
+ static void output(const Hex32 &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, Hex32 &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+template<>
+struct ScalarTraits<Hex64> {
+ static void output(const Hex64 &, void *, raw_ostream &);
+ static StringRef input(StringRef, void *, Hex64 &);
+ static QuotingType mustQuote(StringRef) { return QuotingType::None; }
+};
+
+// Define non-member operator>> so that Input can stream in a document list.
+template <typename T>
+inline
+typename std::enable_if<has_DocumentListTraits<T>::value, Input &>::type
+operator>>(Input &yin, T &docList) {
+ int i = 0;
+ EmptyContext Ctx;
+ while ( yin.setCurrentDocument() ) {
+ yamlize(yin, DocumentListTraits<T>::element(yin, docList, i), true, Ctx);
+ if ( yin.error() )
+ return yin;
+ yin.nextDocument();
+ ++i;
+ }
+ return yin;
+}
+
+// Define non-member operator>> so that Input can stream in a map as a document.
+template <typename T>
+inline typename std::enable_if<has_MappingTraits<T, EmptyContext>::value,
+ Input &>::type
+operator>>(Input &yin, T &docMap) {
+ EmptyContext Ctx;
+ yin.setCurrentDocument();
+ yamlize(yin, docMap, true, Ctx);
+ return yin;
+}
+
+// Define non-member operator>> so that Input can stream in a sequence as
+// a document.
+template <typename T>
+inline
+typename std::enable_if<has_SequenceTraits<T>::value, Input &>::type
+operator>>(Input &yin, T &docSeq) {
+ EmptyContext Ctx;
+ if (yin.setCurrentDocument())
+ yamlize(yin, docSeq, true, Ctx);
+ return yin;
+}
+
+// Define non-member operator>> so that Input can stream in a block scalar.
+template <typename T>
+inline
+typename std::enable_if<has_BlockScalarTraits<T>::value, Input &>::type
+operator>>(Input &In, T &Val) {
+ EmptyContext Ctx;
+ if (In.setCurrentDocument())
+ yamlize(In, Val, true, Ctx);
+ return In;
+}
+
+// Define non-member operator>> so that Input can stream in a string map.
+template <typename T>
+inline
+typename std::enable_if<has_CustomMappingTraits<T>::value, Input &>::type
+operator>>(Input &In, T &Val) {
+ EmptyContext Ctx;
+ if (In.setCurrentDocument())
+ yamlize(In, Val, true, Ctx);
+ return In;
+}
+
+// Provide better error message about types missing a trait specialization
+template <typename T>
+inline typename std::enable_if<missingTraits<T, EmptyContext>::value,
+ Input &>::type
+operator>>(Input &yin, T &docSeq) {
+ char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
+ return yin;
+}
+
+// Define non-member operator<< so that Output can stream out document list.
+template <typename T>
+inline
+typename std::enable_if<has_DocumentListTraits<T>::value, Output &>::type
+operator<<(Output &yout, T &docList) {
+ EmptyContext Ctx;
+ yout.beginDocuments();
+ const size_t count = DocumentListTraits<T>::size(yout, docList);
+ for(size_t i=0; i < count; ++i) {
+ if ( yout.preflightDocument(i) ) {
+ yamlize(yout, DocumentListTraits<T>::element(yout, docList, i), true,
+ Ctx);
+ yout.postflightDocument();
+ }
+ }
+ yout.endDocuments();
+ return yout;
+}
+
+// Define non-member operator<< so that Output can stream out a map.
+template <typename T>
+inline typename std::enable_if<has_MappingTraits<T, EmptyContext>::value,
+ Output &>::type
+operator<<(Output &yout, T &map) {
+ EmptyContext Ctx;
+ yout.beginDocuments();
+ if ( yout.preflightDocument(0) ) {
+ yamlize(yout, map, true, Ctx);
+ yout.postflightDocument();
+ }
+ yout.endDocuments();
+ return yout;
+}
+
+// Define non-member operator<< so that Output can stream out a sequence.
+template <typename T>
+inline
+typename std::enable_if<has_SequenceTraits<T>::value, Output &>::type
+operator<<(Output &yout, T &seq) {
+ EmptyContext Ctx;
+ yout.beginDocuments();
+ if ( yout.preflightDocument(0) ) {
+ yamlize(yout, seq, true, Ctx);
+ yout.postflightDocument();
+ }
+ yout.endDocuments();
+ return yout;
+}
+
+// Define non-member operator<< so that Output can stream out a block scalar.
+template <typename T>
+inline
+typename std::enable_if<has_BlockScalarTraits<T>::value, Output &>::type
+operator<<(Output &Out, T &Val) {
+ EmptyContext Ctx;
+ Out.beginDocuments();
+ if (Out.preflightDocument(0)) {
+ yamlize(Out, Val, true, Ctx);
+ Out.postflightDocument();
+ }
+ Out.endDocuments();
+ return Out;
+}
+
+// Define non-member operator<< so that Output can stream out a string map.
+template <typename T>
+inline
+typename std::enable_if<has_CustomMappingTraits<T>::value, Output &>::type
+operator<<(Output &Out, T &Val) {
+ EmptyContext Ctx;
+ Out.beginDocuments();
+ if (Out.preflightDocument(0)) {
+ yamlize(Out, Val, true, Ctx);
+ Out.postflightDocument();
+ }
+ Out.endDocuments();
+ return Out;
+}
+
+// Provide better error message about types missing a trait specialization
+template <typename T>
+inline typename std::enable_if<missingTraits<T, EmptyContext>::value,
+ Output &>::type
+operator<<(Output &yout, T &seq) {
+ char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
+ return yout;
+}
+
+template <bool B> struct IsFlowSequenceBase {};
+template <> struct IsFlowSequenceBase<true> { static const bool flow = true; };
+
+template <typename T, bool Flow>
+struct SequenceTraitsImpl : IsFlowSequenceBase<Flow> {
+private:
+ using type = typename T::value_type;
+
+public:
+ static size_t size(IO &io, T &seq) { return seq.size(); }
+
+ static type &element(IO &io, T &seq, size_t index) {
+ if (index >= seq.size())
+ seq.resize(index + 1);
+ return seq[index];
+ }
+};
+
+// Simple helper to check an expression can be used as a bool-valued template
+// argument.
+template <bool> struct CheckIsBool { static const bool value = true; };
+
+// If T has SequenceElementTraits, then vector<T> and SmallVector<T, N> have
+// SequenceTraits that do the obvious thing.
+template <typename T>
+struct SequenceTraits<std::vector<T>,
+ typename std::enable_if<CheckIsBool<
+ SequenceElementTraits<T>::flow>::value>::type>
+ : SequenceTraitsImpl<std::vector<T>, SequenceElementTraits<T>::flow> {};
+template <typename T, unsigned N>
+struct SequenceTraits<SmallVector<T, N>,
+ typename std::enable_if<CheckIsBool<
+ SequenceElementTraits<T>::flow>::value>::type>
+ : SequenceTraitsImpl<SmallVector<T, N>, SequenceElementTraits<T>::flow> {};
+
+// Sequences of fundamental types use flow formatting.
+template <typename T>
+struct SequenceElementTraits<
+ T, typename std::enable_if<std::is_fundamental<T>::value>::type> {
+ static const bool flow = true;
+};
+
+// Sequences of strings use block formatting.
+template<> struct SequenceElementTraits<std::string> {
+ static const bool flow = false;
+};
+template<> struct SequenceElementTraits<StringRef> {
+ static const bool flow = false;
+};
+template<> struct SequenceElementTraits<std::pair<std::string, std::string>> {
+ static const bool flow = false;
+};
+
+/// Implementation of CustomMappingTraits for std::map<std::string, T>.
+template <typename T> struct StdMapStringCustomMappingTraitsImpl {
+ using map_type = std::map<std::string, T>;
+
+ static void inputOne(IO &io, StringRef key, map_type &v) {
+ io.mapRequired(key.str().c_str(), v[key]);
+ }
+
+ static void output(IO &io, map_type &v) {
+ for (auto &p : v)
+ io.mapRequired(p.first.c_str(), p.second);
+ }
+};
+
+} // end namespace yaml
+} // end namespace llvm
+
+#define LLVM_YAML_IS_SEQUENCE_VECTOR_IMPL(TYPE, FLOW) \
+ namespace llvm { \
+ namespace yaml { \
+ static_assert( \
+ !std::is_fundamental<TYPE>::value && \
+ !std::is_same<TYPE, std::string>::value && \
+ !std::is_same<TYPE, llvm::StringRef>::value, \
+ "only use LLVM_YAML_IS_SEQUENCE_VECTOR for types you control"); \
+ template <> struct SequenceElementTraits<TYPE> { \
+ static const bool flow = FLOW; \
+ }; \
+ } \
+ }
+
+/// Utility for declaring that a std::vector of a particular type
+/// should be considered a YAML sequence.
+#define LLVM_YAML_IS_SEQUENCE_VECTOR(type) \
+ LLVM_YAML_IS_SEQUENCE_VECTOR_IMPL(type, false)
+
+/// Utility for declaring that a std::vector of a particular type
+/// should be considered a YAML flow sequence.
+#define LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(type) \
+ LLVM_YAML_IS_SEQUENCE_VECTOR_IMPL(type, true)
+
+#define LLVM_YAML_DECLARE_MAPPING_TRAITS(Type) \
+ namespace llvm { \
+ namespace yaml { \
+ template <> struct MappingTraits<Type> { \
+ static void mapping(IO &IO, Type &Obj); \
+ }; \
+ } \
+ }
+
+#define LLVM_YAML_DECLARE_ENUM_TRAITS(Type) \
+ namespace llvm { \
+ namespace yaml { \
+ template <> struct ScalarEnumerationTraits<Type> { \
+ static void enumeration(IO &io, Type &Value); \
+ }; \
+ } \
+ }
+
+#define LLVM_YAML_DECLARE_BITSET_TRAITS(Type) \
+ namespace llvm { \
+ namespace yaml { \
+ template <> struct ScalarBitSetTraits<Type> { \
+ static void bitset(IO &IO, Type &Options); \
+ }; \
+ } \
+ }
+
+#define LLVM_YAML_DECLARE_SCALAR_TRAITS(Type, MustQuote) \
+ namespace llvm { \
+ namespace yaml { \
+ template <> struct ScalarTraits<Type> { \
+ static void output(const Type &Value, void *ctx, raw_ostream &Out); \
+ static StringRef input(StringRef Scalar, void *ctxt, Type &Value); \
+ static QuotingType mustQuote(StringRef) { return MustQuote; } \
+ }; \
+ } \
+ }
+
+/// Utility for declaring that a std::vector of a particular type
+/// should be considered a YAML document list.
+#define LLVM_YAML_IS_DOCUMENT_LIST_VECTOR(_type) \
+ namespace llvm { \
+ namespace yaml { \
+ template <unsigned N> \
+ struct DocumentListTraits<SmallVector<_type, N>> \
+ : public SequenceTraitsImpl<SmallVector<_type, N>, false> {}; \
+ template <> \
+ struct DocumentListTraits<std::vector<_type>> \
+ : public SequenceTraitsImpl<std::vector<_type>, false> {}; \
+ } \
+ }
+
+/// Utility for declaring that std::map<std::string, _type> should be considered
+/// a YAML map.
+#define LLVM_YAML_IS_STRING_MAP(_type) \
+ namespace llvm { \
+ namespace yaml { \
+ template <> \
+ struct CustomMappingTraits<std::map<std::string, _type>> \
+ : public StdMapStringCustomMappingTraitsImpl<_type> {}; \
+ } \
+ }
+
+#endif // LLVM_SUPPORT_YAMLTRAITS_H