blob: 799ebdc883abc8f22ab897e5c66570a1b02efea2 [file] [log] [blame]
//===- TextStub.cpp -------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// 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 TBDFlags : 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->FileKind != FileType::Invalid)) &&
"File type is not set in YAML context");
IO.mapRequired("archs", Section.Architectures);
if (Ctx->FileKind == 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->FileKind == 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->FileKind != 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->FileKind == 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<TBDFlags> {
static void bitset(IO &IO, TBDFlags &Flags) {
IO.bitSetCase(Flags, "flat_namespace", TBDFlags::FlatNamespace);
IO.bitSetCase(Flags, "not_app_extension_safe",
TBDFlags::NotApplicationExtensionSafe);
IO.bitSetCase(Flags, "installapi", TBDFlags::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());
SwiftABIVersion = File->getSwiftABIVersion();
ObjCConstraint = File->getObjCConstraint();
Flags = TBDFlags::None;
if (!File->isApplicationExtensionSafe())
Flags |= TBDFlags::NotApplicationExtensionSafe;
if (!File->isTwoLevelNamespace())
Flags |= TBDFlags::FlatNamespace;
if (File->isInstallAPI())
Flags |= TBDFlags::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->FileKind);
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(SwiftABIVersion);
File->setObjCConstraint(ObjCConstraint);
File->setParentUmbrella(ParentUmbrella);
if (Ctx->FileKind == FileType::TBD_V1) {
File->setTwoLevelNamespace();
File->setApplicationExtensionSafe();
} else {
File->setTwoLevelNamespace(!(Flags & TBDFlags::FlatNamespace));
File->setApplicationExtensionSafe(
!(Flags & TBDFlags::NotApplicationExtensionSafe));
File->setInstallAPI(Flags & TBDFlags::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->FileKind != FileType::TBD_V3 &&
Symbol.value.startswith("_OBJC_EHTYPE_$_"))
File->addSymbol(SymbolKind::ObjectiveCClassEHType,
Symbol.value.drop_front(15), Section.Architectures);
else
File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
Section.Architectures);
}
for (auto &Symbol : Section.Classes) {
auto Name = Symbol.value;
if (Ctx->FileKind != FileType::TBD_V3)
Name = Name.drop_front();
File->addSymbol(SymbolKind::ObjectiveCClass, Name,
Section.Architectures);
}
for (auto &Symbol : Section.ClassEHs)
File->addSymbol(SymbolKind::ObjectiveCClassEHType, Symbol,
Section.Architectures);
for (auto &Symbol : Section.IVars) {
auto Name = Symbol.value;
if (Ctx->FileKind != FileType::TBD_V3)
Name = Name.drop_front();
File->addSymbol(SymbolKind::ObjectiveCInstanceVariable, Name,
Section.Architectures);
}
for (auto &Symbol : Section.WeakDefSymbols)
File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
Section.Architectures, SymbolFlags::WeakDefined);
for (auto &Symbol : Section.TLVSymbols)
File->addSymbol(SymbolKind::GlobalSymbol, Symbol,
Section.Architectures, SymbolFlags::ThreadLocalValue);
}
for (const auto &Section : Undefineds) {
for (auto &Symbol : Section.Symbols) {
if (Ctx->FileKind != FileType::TBD_V3 &&
Symbol.value.startswith("_OBJC_EHTYPE_$_"))
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->FileKind != 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->FileKind != 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;
PlatformKind Platform{PlatformKind::unknown};
StringRef InstallName;
PackedVersion CurrentVersion;
PackedVersion CompatibilityVersion;
SwiftVersion SwiftABIVersion{0};
ObjCConstraintType ObjCConstraint{ObjCConstraintType::None};
TBDFlags Flags{TBDFlags::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->FileKind != 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->FileKind = FileType::TBD_V2;
else if (IO.mapTag("!tapi-tbd-v3", false))
Ctx->FileKind = FileType::TBD_V2;
else if (IO.mapTag("!tapi-tbd-v1", false) ||
IO.mapTag("tag:yaml.org,2002:map", false))
Ctx->FileKind = FileType::TBD_V1;
else {
IO.setError("unsupported file type");
return;
}
}
// Set file tyoe when writing.
if (IO.outputting()) {
switch (Ctx->FileKind) {
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->FileKind != FileType::TBD_V1)
IO.mapOptional("uuids", Keys->UUIDs);
IO.mapRequired("platform", Keys->Platform);
if (Ctx->FileKind != FileType::TBD_V1)
IO.mapOptional("flags", Keys->Flags, TBDFlags::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->FileKind != FileType::TBD_V3)
IO.mapOptional("swift-version", Keys->SwiftABIVersion, SwiftVersion(0));
else
IO.mapOptional("swift-abi-version", Keys->SwiftABIVersion,
SwiftVersion(0));
IO.mapOptional("objc-constraint", Keys->ObjCConstraint,
(Ctx->FileKind == FileType::TBD_V1)
? ObjCConstraintType::None
: ObjCConstraintType::Retain_Release);
if (Ctx->FileKind != FileType::TBD_V1)
IO.mapOptional("parent-umbrella", Keys->ParentUmbrella, StringRef());
IO.mapOptional("exports", Keys->Exports);
if (Ctx->FileKind != 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;
auto File = std::unique_ptr<InterfaceFile>(
const_cast<InterfaceFile *>(Files.front()));
if (YAMLIn.error())
return make_error<StringError>(Ctx.ErrorMessage, YAMLIn.error());
return std::move(File);
}
Error TextAPIWriter::writeToStream(raw_ostream &OS, const InterfaceFile &File) {
TextAPIContext Ctx;
Ctx.Path = File.getPath();
Ctx.FileKind = 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.