Revert "[TextAPI] TBD Reader/Writer"

Reverting to unbreak bots.

llvm-svn: 347809

1 files changed, 0 insertions, 659 deletions

diff --git a/llvm/lib/TextAPI/MachO/TextStub.cpp b/llvm/lib/TextAPI/MachO/TextStub.cpp
deleted file mode 100644
index e2fe0ada54f..00000000000
--- a/llvm/lib/TextAPI/MachO/TextStub.cpp
+++ /dev/null
@@ -1,659 +0,0 @@
-//===- llvm/TextAPI/TextStub.cpp - Text Stub --------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// \brief Implements the text stub file reader/writer.
-///
-//===----------------------------------------------------------------------===//
-
-#include "TextAPIContext.h"
-#include "TextStubCommon.h"
-#include "llvm/ADT/BitmaskEnum.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/Allocator.h"
-#include "llvm/Support/SourceMgr.h"
-#include "llvm/Support/YAMLTraits.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/TextAPI/MachO/Architecture.h"
-#include "llvm/TextAPI/MachO/ArchitectureSet.h"
-#include "llvm/TextAPI/MachO/InterfaceFile.h"
-#include "llvm/TextAPI/MachO/PackedVersion.h"
-#include "llvm/TextAPI/MachO/TextAPIReader.h"
-#include "llvm/TextAPI/MachO/TextAPIWriter.h"
-#include <algorithm>
-#include <set>
-
-// clang-format off
-/*
-
- YAML Format specification.
-
- The TBD v1 format only support two level address libraries and is per
- definition application extension safe.
-
----                              # the tag !tapi-tbd-v1 is optional and
-                                 # shouldn't be emitted to support older linker.
-archs: [ armv7, armv7s, arm64 ]  # the list of architecture slices that are
-                                 # supported by this file.
-platform: ios                    # Specifies the platform (macosx, ios, etc)
-install-name: /u/l/libfoo.dylib  #
-current-version: 1.2.3           # Optional: defaults to 1.0
-compatibility-version: 1.0       # Optional: defaults to 1.0
-swift-version: 0                 # Optional: defaults to 0
-objc-constraint: none            # Optional: defaults to none
-exports:                         # List of export sections
-...
-
-Each export section is defined as following:
-
- - archs: [ arm64 ]                   # the list of architecture slices
-   allowed-clients: [ client ]        # Optional: List of clients
-   re-exports: [ ]                    # Optional: List of re-exports
-   symbols: [ _sym ]                  # Optional: List of symbols
-   objc-classes: []                   # Optional: List of Objective-C classes
-   objc-ivars: []                     # Optional: List of Objective C Instance
-                                      #           Variables
-   weak-def-symbols: []               # Optional: List of weak defined symbols
-   thread-local-symbols: []           # Optional: List of thread local symbols
-*/
-
-/*
-
- YAML Format specification.
-
---- !tapi-tbd-v2
-archs: [ armv7, armv7s, arm64 ]  # the list of architecture slices that are
-                                 # supported by this file.
-uuids: [ armv7:... ]             # Optional: List of architecture and UUID pairs.
-platform: ios                    # Specifies the platform (macosx, ios, etc)
-flags: []                        # Optional:
-install-name: /u/l/libfoo.dylib  #
-current-version: 1.2.3           # Optional: defaults to 1.0
-compatibility-version: 1.0       # Optional: defaults to 1.0
-swift-version: 0                 # Optional: defaults to 0
-objc-constraint: retain_release  # Optional: defaults to retain_release
-parent-umbrella:                 # Optional:
-exports:                         # List of export sections
-...
-undefineds:                      # List of undefineds sections
-...
-
-Each export section is defined as following:
-
-- archs: [ arm64 ]                   # the list of architecture slices
-  allowed-clients: [ client ]        # Optional: List of clients
-  re-exports: [ ]                    # Optional: List of re-exports
-  symbols: [ _sym ]                  # Optional: List of symbols
-  objc-classes: []                   # Optional: List of Objective-C classes
-  objc-ivars: []                     # Optional: List of Objective C Instance
-                                     #           Variables
-  weak-def-symbols: []               # Optional: List of weak defined symbols
-  thread-local-symbols: []           # Optional: List of thread local symbols
-
-Each undefineds section is defined as following:
-- archs: [ arm64 ]     # the list of architecture slices
-  symbols: [ _sym ]    # Optional: List of symbols
-  objc-classes: []     # Optional: List of Objective-C classes
-  objc-ivars: []       # Optional: List of Objective C Instance Variables
-  weak-ref-symbols: [] # Optional: List of weak defined symbols
-*/
-
-/*
-
- YAML Format specification.
-
---- !tapi-tbd-v3
-archs: [ armv7, armv7s, arm64 ]  # the list of architecture slices that are
-                                 # supported by this file.
-uuids: [ armv7:... ]             # Optional: List of architecture and UUID pairs.
-platform: ios                    # Specifies the platform (macosx, ios, etc)
-flags: []                        # Optional:
-install-name: /u/l/libfoo.dylib  #
-current-version: 1.2.3           # Optional: defaults to 1.0
-compatibility-version: 1.0       # Optional: defaults to 1.0
-swift-abi-version: 0             # Optional: defaults to 0
-objc-constraint: retain_release  # Optional: defaults to retain_release
-parent-umbrella:                 # Optional:
-exports:                         # List of export sections
-...
-undefineds:                      # List of undefineds sections
-...
-
-Each export section is defined as following:
-
-- archs: [ arm64 ]                   # the list of architecture slices
-  allowed-clients: [ client ]        # Optional: List of clients
-  re-exports: [ ]                    # Optional: List of re-exports
-  symbols: [ _sym ]                  # Optional: List of symbols
-  objc-classes: []                   # Optional: List of Objective-C classes
-  objc-eh-types: []                  # Optional: List of Objective-C classes
-                                     #           with EH
-  objc-ivars: []                     # Optional: List of Objective C Instance
-                                     #           Variables
-  weak-def-symbols: []               # Optional: List of weak defined symbols
-  thread-local-symbols: []           # Optional: List of thread local symbols
-
-Each undefineds section is defined as following:
-- archs: [ arm64 ]     # the list of architecture slices
-  symbols: [ _sym ]    # Optional: List of symbols
-  objc-classes: []     # Optional: List of Objective-C classes
-  objc-eh-types: []                  # Optional: List of Objective-C classes
-                                     #           with EH
-  objc-ivars: []       # Optional: List of Objective C Instance Variables
-  weak-ref-symbols: [] # Optional: List of weak defined symbols
-*/
-// clang-format on
-
-using namespace llvm;
-using namespace llvm::yaml;
-using namespace llvm::MachO;
-
-namespace {
-struct ExportSection {
-  std::vector<Architecture> Architectures;
-  std::vector<FlowStringRef> AllowableClients;
-  std::vector<FlowStringRef> ReexportedLibraries;
-  std::vector<FlowStringRef> Symbols;
-  std::vector<FlowStringRef> Classes;
-  std::vector<FlowStringRef> ClassEHs;
-  std::vector<FlowStringRef> IVars;
-  std::vector<FlowStringRef> WeakDefSymbols;
-  std::vector<FlowStringRef> TLVSymbols;
-};
-
-struct UndefinedSection {
-  std::vector<Architecture> Architectures;
-  std::vector<FlowStringRef> Symbols;
-  std::vector<FlowStringRef> Classes;
-  std::vector<FlowStringRef> ClassEHs;
-  std::vector<FlowStringRef> IVars;
-  std::vector<FlowStringRef> WeakRefSymbols;
-};
-
-// clang-format off
-enum Flags : unsigned {
-  None                         = 0U,
-  FlatNamespace                = 1U << 0,
-  NotApplicationExtensionSafe  = 1U << 1,
-  InstallAPI                   = 1U << 2,
-  LLVM_MARK_AS_BITMASK_ENUM(/*LargestValue=*/InstallAPI),
-};
-// clang-format on
-} // end anonymous namespace.
-
-LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(Architecture)
-LLVM_YAML_IS_SEQUENCE_VECTOR(ExportSection)
-LLVM_YAML_IS_SEQUENCE_VECTOR(UndefinedSection)
-
-namespace llvm {
-namespace yaml {
-
-template <> struct MappingTraits<ExportSection> {
-  static void mapping(IO &IO, ExportSection &Section) {
-    const auto *Ctx = reinterpret_cast<TextAPIContext *>(IO.getContext());
-    assert((!Ctx || Ctx && Ctx->FileType != FileType::Invalid) &&
-           "File type is not set in YAML context");
-
-    IO.mapRequired("archs", Section.Architectures);
-    if (Ctx->FileType == FileType::TBD_V1)
-      IO.mapOptional("allowed-clients", Section.AllowableClients);
-    else
-      IO.mapOptional("allowable-clients", Section.AllowableClients);
-    IO.mapOptional("re-exports", Section.ReexportedLibraries);
-    IO.mapOptional("symbols", Section.Symbols);
-    IO.mapOptional("objc-classes", Section.Classes);
-    if (Ctx->FileType == FileType::TBD_V3)
-      IO.mapOptional("objc-eh-types", Section.ClassEHs);
-    IO.mapOptional("objc-ivars", Section.IVars);
-    IO.mapOptional("weak-def-symbols", Section.WeakDefSymbols);
-    IO.mapOptional("thread-local-symbols", Section.TLVSymbols);
-  }
-};
-
-template <> struct MappingTraits<UndefinedSection> {
-  static void mapping(IO &IO, UndefinedSection &Section) {
-    const auto *Ctx = reinterpret_cast<TextAPIContext *>(IO.getContext());
-    assert((!Ctx || Ctx && Ctx->FileType != FileType::Invalid) &&
-           "File type is not set in YAML context");
-
-    IO.mapRequired("archs", Section.Architectures);
-    IO.mapOptional("symbols", Section.Symbols);
-    IO.mapOptional("objc-classes", Section.Classes);
-    if (Ctx->FileType == FileType::TBD_V3)
-      IO.mapOptional("objc-eh-types", Section.ClassEHs);
-    IO.mapOptional("objc-ivars", Section.IVars);
-    IO.mapOptional("weak-ref-symbols", Section.WeakRefSymbols);
-  }
-};
-
-template <> struct ScalarBitSetTraits<Flags> {
-  static void bitset(IO &IO, Flags &Flags) {
-    IO.bitSetCase(Flags, "flat_namespace", Flags::FlatNamespace);
-    IO.bitSetCase(Flags, "not_app_extension_safe",
-                  Flags::NotApplicationExtensionSafe);
-    IO.bitSetCase(Flags, "installapi", Flags::InstallAPI);
-  }
-};
-
-template <> struct MappingTraits<const InterfaceFile *> {
-  struct NormalizedTBD {
-    explicit NormalizedTBD(IO &IO) {}
-    NormalizedTBD(IO &IO, const InterfaceFile *&File) {
-      Architectures = File->getArchitectures();
-      UUIDs = File->uuids();
-      Platform = File->getPlatform();
-      InstallName = File->getInstallName();
-      CurrentVersion = PackedVersion(File->getCurrentVersion());
-      CompatibilityVersion = PackedVersion(File->getCompatibilityVersion());
-      SwiftVersion = File->getSwiftABIVersion();
-      ObjCConstraint = File->getObjCConstraint();
-
-      Flags = Flags::None;
-      if (!File->isApplicationExtensionSafe())
-        Flags |= Flags::NotApplicationExtensionSafe;
-
-      if (!File->isTwoLevelNamespace())
-        Flags |= Flags::FlatNamespace;
-
-      if (File->isInstallAPI())
-        Flags |= Flags::InstallAPI;
-
-      ParentUmbrella = File->getParentUmbrella();
-
-      std::set<ArchitectureSet> ArchSet;
-      for (const auto &Library : File->allowableClients())
-        ArchSet.insert(Library.getArchitectures());
-
-      for (const auto &Library : File->reexportedLibraries())
-        ArchSet.insert(Library.getArchitectures());
-
-      std::map<const Symbol *, ArchitectureSet> SymbolToArchSet;
-      for (const auto *Symbol : File->exports()) {
-        auto Architectures = Symbol->getArchitectures();
-        SymbolToArchSet[Symbol] = Architectures;
-        ArchSet.insert(Architectures);
-      }
-
-      for (auto Architectures : ArchSet) {
-        ExportSection Section;
-        Section.Architectures = Architectures;
-
-        for (const auto &Library : File->allowableClients())
-          if (Library.getArchitectures() == Architectures)
-            Section.AllowableClients.emplace_back(Library.getInstallName());
-
-        for (const auto &Library : File->reexportedLibraries())
-          if (Library.getArchitectures() == Architectures)
-            Section.ReexportedLibraries.emplace_back(Library.getInstallName());
-
-        for (const auto &SymArch : SymbolToArchSet) {
-          if (SymArch.second != Architectures)
-            continue;
-
-          const auto *Symbol = SymArch.first;
-          switch (Symbol->getKind()) {
-          case SymbolKind::GlobalSymbol:
-            if (Symbol->isWeakDefined())
-              Section.WeakDefSymbols.emplace_back(Symbol->getName());
-            else if (Symbol->isThreadLocalValue())
-              Section.TLVSymbols.emplace_back(Symbol->getName());
-            else
-              Section.Symbols.emplace_back(Symbol->getName());
-            break;
-          case SymbolKind::ObjectiveCClass:
-            if (File->getFileType() != FileType::TBD_V3)
-              Section.Classes.emplace_back(
-                  copyString("_" + Symbol->getName().str()));
-            else
-              Section.Classes.emplace_back(Symbol->getName());
-            break;
-          case SymbolKind::ObjectiveCClassEHType:
-            if (File->getFileType() != FileType::TBD_V3)
-              Section.Symbols.emplace_back(
-                  copyString("_OBJC_EHTYPE_$_" + Symbol->getName().str()));
-            else
-              Section.ClassEHs.emplace_back(Symbol->getName());
-            break;
-          case SymbolKind::ObjectiveCInstanceVariable:
-            if (File->getFileType() != FileType::TBD_V3)
-              Section.IVars.emplace_back(
-                  copyString("_" + Symbol->getName().str()));
-            else
-              Section.IVars.emplace_back(Symbol->getName());
-            break;
-          }
-        }
-        llvm::sort(Section.Symbols.begin(), Section.Symbols.end());
-        llvm::sort(Section.Classes.begin(), Section.Classes.end());
-        llvm::sort(Section.ClassEHs.begin(), Section.ClassEHs.end());
-        llvm::sort(Section.IVars.begin(), Section.IVars.end());
-        llvm::sort(Section.WeakDefSymbols.begin(),
-                   Section.WeakDefSymbols.end());
-        llvm::sort(Section.TLVSymbols.begin(), Section.TLVSymbols.end());
-        Exports.emplace_back(std::move(Section));
-      }
-
-      ArchSet.clear();
-      SymbolToArchSet.clear();
-
-      for (const auto *Symbol : File->undefineds()) {
-        auto Architectures = Symbol->getArchitectures();
-        SymbolToArchSet[Symbol] = Architectures;
-        ArchSet.insert(Architectures);
-      }
-
-      for (auto Architectures : ArchSet) {
-        UndefinedSection Section;
-        Section.Architectures = Architectures;
-
-        for (const auto &SymArch : SymbolToArchSet) {
-          if (SymArch.second != Architectures)
-            continue;
-
-          const auto *Symbol = SymArch.first;
-          switch (Symbol->getKind()) {
-          case SymbolKind::GlobalSymbol:
-            if (Symbol->isWeakReferenced())
-              Section.WeakRefSymbols.emplace_back(Symbol->getName());
-            else
-              Section.Symbols.emplace_back(Symbol->getName());
-            break;
-          case SymbolKind::ObjectiveCClass:
-            if (File->getFileType() != FileType::TBD_V3)
-              Section.Classes.emplace_back(
-                  copyString("_" + Symbol->getName().str()));
-            else
-              Section.Classes.emplace_back(Symbol->getName());
-            break;
-          case SymbolKind::ObjectiveCClassEHType:
-            if (File->getFileType() != FileType::TBD_V3)
-              Section.Symbols.emplace_back(
-                  copyString("_OBJC_EHTYPE_$_" + Symbol->getName().str()));
-            else
-              Section.ClassEHs.emplace_back(Symbol->getName());
-            break;
-          case SymbolKind::ObjectiveCInstanceVariable:
-            if (File->getFileType() != FileType::TBD_V3)
-              Section.IVars.emplace_back(
-                  copyString("_" + Symbol->getName().str()));
-            else
-              Section.IVars.emplace_back(Symbol->getName());
-            break;
-          }
-        }
-        llvm::sort(Section.Symbols.begin(), Section.Symbols.end());
-        llvm::sort(Section.Classes.begin(), Section.Classes.end());
-        llvm::sort(Section.ClassEHs.begin(), Section.ClassEHs.end());
-        llvm::sort(Section.IVars.begin(), Section.IVars.end());
-        llvm::sort(Section.WeakRefSymbols.begin(),
-                   Section.WeakRefSymbols.end());
-        Undefineds.emplace_back(std::move(Section));
-      }
-    }
-
-    const InterfaceFile *denormalize(IO &IO) {
-      auto Ctx = reinterpret_cast<TextAPIContext *>(IO.getContext());
-      assert(Ctx);
-
-      auto *File = new InterfaceFile;
-      File->setPath(Ctx->Path);
-      File->setFileType(Ctx->FileType);
-      for (auto &ID : UUIDs)
-        File->addUUID(ID.first, ID.second);
-      File->setPlatform(Platform);
-      File->setArchitectures(Architectures);
-      File->setInstallName(InstallName);
-      File->setCurrentVersion(CurrentVersion);
-      File->setCompatibilityVersion(CompatibilityVersion);
-      File->setSwiftABIVersion(SwiftVersion);
-      File->setObjCConstraint(ObjCConstraint);
-      File->setParentUmbrella(ParentUmbrella);
-
-      if (Ctx->FileType == FileType::TBD_V1) {
-        File->setTwoLevelNamespace();
-        File->setApplicationExtensionSafe();
-      } else {
-        File->setTwoLevelNamespace(!(Flags & Flags::FlatNamespace));
-        File->setApplicationExtensionSafe(
-            !(Flags & Flags::NotApplicationExtensionSafe));
-        File->setInstallAPI(Flags & Flags::InstallAPI);
-      }
-
-      for (const auto &Section : Exports) {
-        for (const auto &Library : Section.AllowableClients)
-          File->addAllowableClient(Library, Section.Architectures);
-        for (const auto &Library : Section.ReexportedLibraries)
-          File->addReexportedLibrary(Library, Section.Architectures);
-
-        for (const auto &Symbol : Section.Symbols) {
-          if (Ctx->FileType != FileType::TBD_V3 &&
-              Symbol.value.startswith("_OBJC_EHTYPE_$_"))
-            File->addSymbol(SymbolKind::ObjectiveCClassEHType,
-                            Symbol.value.drop_front(15), Section.Architectures);
-          else
-            File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
-                            Section.Architectures);
-        }
-        for (auto &Symbol : Section.Classes) {
-          auto Name = Symbol.value;
-          if (Ctx->FileType != FileType::TBD_V3)
-            Name = Name.drop_front();
-          File->addSymbol(SymbolKind::ObjectiveCClass, Name,
-                          Section.Architectures);
-        }
-        for (auto &Symbol : Section.ClassEHs)
-          File->addSymbol(SymbolKind::ObjectiveCClassEHType, Symbol,
-                          Section.Architectures);
-        for (auto &Symbol : Section.IVars) {
-          auto Name = Symbol.value;
-          if (Ctx->FileType != FileType::TBD_V3)
-            Name = Name.drop_front();
-          File->addSymbol(SymbolKind::ObjectiveCInstanceVariable, Name,
-                          Section.Architectures);
-        }
-        for (auto &Symbol : Section.WeakDefSymbols)
-          File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
-                          Section.Architectures, SymbolFlags::WeakDefined);
-        for (auto &Symbol : Section.TLVSymbols)
-          File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
-                          Section.Architectures, SymbolFlags::ThreadLocalValue);
-      }
-
-      for (const auto &Section : Undefineds) {
-        for (auto &Symbol : Section.Symbols) {
-          if (Ctx->FileType != FileType::TBD_V3 &&
-              Symbol.value.startswith("_OBJC_EHTYPE_$_"))
-            File->addSymbol(SymbolKind::ObjectiveCClassEHType,
-                            Symbol.value.drop_front(15), Section.Architectures,
-                            SymbolFlags::Undefined);
-          else
-            File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
-                            Section.Architectures, SymbolFlags::Undefined);
-        }
-        for (auto &Symbol : Section.Classes) {
-          auto Name = Symbol.value;
-          if (Ctx->FileType != FileType::TBD_V3)
-            Name = Name.drop_front();
-          File->addSymbol(SymbolKind::ObjectiveCClass, Name,
-                          Section.Architectures, SymbolFlags::Undefined);
-        }
-        for (auto &Symbol : Section.ClassEHs)
-          File->addSymbol(SymbolKind::ObjectiveCClassEHType, Symbol,
-                          Section.Architectures, SymbolFlags::Undefined);
-        for (auto &Symbol : Section.IVars) {
-          auto Name = Symbol.value;
-          if (Ctx->FileType != FileType::TBD_V3)
-            Name = Name.drop_front();
-          File->addSymbol(SymbolKind::ObjectiveCInstanceVariable, Name,
-                          Section.Architectures, SymbolFlags::Undefined);
-        }
-        for (auto &Symbol : Section.WeakRefSymbols)
-          File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
-                          Section.Architectures,
-                          SymbolFlags::Undefined | SymbolFlags::WeakReferenced);
-      }
-
-      return File;
-    }
-
-    llvm::BumpPtrAllocator Allocator;
-    StringRef copyString(StringRef String) {
-      if (String.empty())
-        return {};
-
-      void *Ptr = Allocator.Allocate(String.size(), 1);
-      memcpy(Ptr, String.data(), String.size());
-      return StringRef(reinterpret_cast<const char *>(Ptr), String.size());
-    }
-
-    std::vector<Architecture> Architectures;
-    std::vector<UUID> UUIDs;
-    Platform Platform{Platform::unknown};
-    StringRef InstallName;
-    PackedVersion CurrentVersion;
-    PackedVersion CompatibilityVersion;
-    SwiftVersion SwiftVersion;
-    ObjCConstraint ObjCConstraint;
-    Flags Flags{Flags::None};
-    StringRef ParentUmbrella;
-    std::vector<ExportSection> Exports;
-    std::vector<UndefinedSection> Undefineds;
-  };
-
-  static void mapping(IO &IO, const InterfaceFile *&File) {
-    auto *Ctx = reinterpret_cast<TextAPIContext *>(IO.getContext());
-    assert((!Ctx || !IO.outputting() ||
-            Ctx && Ctx->FileType != FileType::Invalid) &&
-           "File type is not set in YAML context");
-    MappingNormalization<NormalizedTBD, const InterfaceFile *> Keys(IO, File);
-
-    // prope file type when reading.
-    if (!IO.outputting()) {
-      if (IO.mapTag("!tapi-tbd-v2", false))
-        Ctx->FileType = FileType::TBD_V2;
-      else if (IO.mapTag("!tapi-tbd-v3", false))
-        Ctx->FileType = FileType::TBD_V2;
-      else if (IO.mapTag("!tapi-tbd-v1", false) ||
-               IO.mapTag("tag:yaml.org,2002:map", false))
-        Ctx->FileType = FileType::TBD_V1;
-      else {
-        IO.setError("unsupported file type");
-        return;
-      }
-    }
-
-    // Set file tyoe when writing.
-    if (IO.outputting()) {
-      switch (Ctx->FileType) {
-      default:
-        llvm_unreachable("unexpected file type");
-      case FileType::TBD_V1:
-        // Don't write the tag into the .tbd file for TBD v1.
-        break;
-      case FileType::TBD_V2:
-        IO.mapTag("!tapi-tbd-v2", true);
-        break;
-      case FileType::TBD_V3:
-        IO.mapTag("!tapi-tbd-v3", true);
-        break;
-      }
-    }
-
-    IO.mapRequired("archs", Keys->Architectures);
-    if (Ctx->FileType != FileType::TBD_V1)
-      IO.mapOptional("uuids", Keys->UUIDs);
-    IO.mapRequired("platform", Keys->Platform);
-    if (Ctx->FileType != FileType::TBD_V1)
-      IO.mapOptional("flags", Keys->Flags, Flags::None);
-    IO.mapRequired("install-name", Keys->InstallName);
-    IO.mapOptional("current-version", Keys->CurrentVersion,
-                   PackedVersion(1, 0, 0));
-    IO.mapOptional("compatibility-version", Keys->CompatibilityVersion,
-                   PackedVersion(1, 0, 0));
-    if (Ctx->FileType != FileType::TBD_V3)
-      IO.mapOptional("swift-version", Keys->SwiftVersion, SwiftVersion(0));
-    else
-      IO.mapOptional("swift-abi-version", Keys->SwiftVersion, SwiftVersion(0));
-    IO.mapOptional("objc-constraint", Keys->ObjCConstraint,
-                   (Ctx->FileType == FileType::TBD_V1)
-                       ? ObjCConstraint::None
-                       : ObjCConstraint::Retain_Release);
-    if (Ctx->FileType != FileType::TBD_V1)
-      IO.mapOptional("parent-umbrella", Keys->ParentUmbrella, StringRef());
-    IO.mapOptional("exports", Keys->Exports);
-    if (Ctx->FileType != FileType::TBD_V1)
-      IO.mapOptional("undefineds", Keys->Undefineds);
-  }
-};
-
-template <>
-struct DocumentListTraits<std::vector<const MachO::InterfaceFile *>> {
-  static size_t size(IO &IO, std::vector<const MachO::InterfaceFile *> &Seq) {
-    return Seq.size();
-  }
-  static const InterfaceFile *&
-  element(IO &IO, std::vector<const InterfaceFile *> &Seq, size_t Index) {
-    if (Index >= Seq.size())
-      Seq.resize(Index + 1);
-    return Seq[Index];
-  }
-};
-
-} // end namespace yaml.
-
-namespace MachO {
-static void DiagHandler(const SMDiagnostic &Diag, void *Context) {
-  auto *File = static_cast<TextAPIContext *>(Context);
-  SmallString<1024> Message;
-  raw_svector_ostream S(Message);
-
-  SMDiagnostic NewDiag(*Diag.getSourceMgr(), Diag.getLoc(), File->Path,
-                       Diag.getLineNo(), Diag.getColumnNo(), Diag.getKind(),
-                       Diag.getMessage(), Diag.getLineContents(),
-                       Diag.getRanges(), Diag.getFixIts());
-
-  NewDiag.print(nullptr, S);
-  File->ErrorMessage = ("malformed file\n" + Message).str();
-}
-
-Expected<std::unique_ptr<InterfaceFile>>
-TextAPIReader::get(std::unique_ptr<MemoryBuffer> InputBuffer) {
-  TextAPIContext Ctx;
-  Ctx.Path = InputBuffer->getBufferIdentifier();
-  yaml::Input YAMLIn(InputBuffer->getBuffer(), &Ctx, DiagHandler, &Ctx);
-
-  // Fill vector with interface file objects created by parsing the YAML file.
-  std::vector<const InterfaceFile *> Files;
-  YAMLIn >> Files;
-
-  if (YAMLIn.error())
-    return make_error<StringError>(Ctx.ErrorMessage, YAMLIn.error());
-
-  auto *File = const_cast<InterfaceFile *>(Files.front());
-  return std::unique_ptr<InterfaceFile>(File);
-}
-
-Error TextAPIWriter::writeToStream(raw_ostream &OS, const InterfaceFile &File) {
-  TextAPIContext Ctx;
-  Ctx.Path = File.getPath();
-  Ctx.FileType = File.getFileType();
-  llvm::yaml::Output YAMLOut(OS, &Ctx, /*WrapColumn=*/80);
-
-  std::vector<const InterfaceFile *> Files;
-  Files.emplace_back(&File);
-
-  // Stream out yaml.
-  YAMLOut << Files;
-
-  return Error::success();
-}
-
-} // end namespace MachO.
-} // end namespace llvm.