[lldb][NFCI] Remove ObjectFile::GetReflectionSectionIdentifier

ObjectFile doesn't need to know what swift is. The only place this
method got used was in SwiftLanguageRuntime, which already has
functionality to replace this entirely (which I just moved up).

Author: bulbazord

lldb/include/lldb/Symbol/ObjectFile.h

@@ -24,9 +24,6 @@
 #include "llvm/Support/VersionTuple.h"
 #include <optional>
 
-namespace swift {
-enum ReflectionSectionKind : uint8_t;
-}
 namespace lldb_private {
 
 /// \class ObjectFile ObjectFile.h "lldb/Symbol/ObjectFile.h"
@@ -721,9 +718,6 @@ class ObjectFile : public std::enable_shared_from_this<ObjectFile>,
   /// Creates a plugin-specific call frame info
   virtual std::unique_ptr<CallFrameInfo> CreateCallFrameInfo();
 
-  virtual llvm::StringRef
-  GetReflectionSectionIdentifier(swift::ReflectionSectionKind section);
-
   /// Load binaries listed in a corefile
   ///
   /// A corefile may have metadata listing binaries that can be loaded,

lldb/source/Plugins/LanguageRuntime/Swift/SwiftLanguageRuntime.cpp

@@ -419,7 +419,32 @@ class SwiftLanguageRuntimeStub {
   operator=(const SwiftLanguageRuntimeStub &) = delete;
 };
 
+static std::unique_ptr<swift::SwiftObjectFileFormat>
+GetObjectFileFormat(llvm::Triple::ObjectFormatType obj_format_type) {
+  std::unique_ptr<swift::SwiftObjectFileFormat> obj_file_format;
+  switch (obj_format_type) {
+  case llvm::Triple::MachO:
+    obj_file_format = std::make_unique<swift::SwiftObjectFileFormatMachO>();
+    break;
+  case llvm::Triple::ELF:
+    obj_file_format = std::make_unique<swift::SwiftObjectFileFormatELF>();
+    break;
+  case llvm::Triple::COFF:
+    obj_file_format = std::make_unique<swift::SwiftObjectFileFormatCOFF>();
+    break;
+  default:
+    if (Log *log = GetLog(LLDBLog::Types))
+      log->Printf("%s: Could not find out swift reflection section names for "
+                  "object format type.",
+                  __FUNCTION__);
+  }
+  return obj_file_format;
+}
+
 static bool HasReflectionInfo(ObjectFile *obj_file) {
+  if (!obj_file)
+    return false;
+
   auto findSectionInObject = [&](StringRef name) {
     ConstString section_name(name);
     SectionSP section_sp =
@@ -429,18 +454,24 @@ static bool HasReflectionInfo(ObjectFile *obj_file) {
     return false;
   };
 
-  StringRef field_md = obj_file->GetReflectionSectionIdentifier(
-      swift::ReflectionSectionKind::fieldmd);
-  StringRef assocty = obj_file->GetReflectionSectionIdentifier(
-      swift::ReflectionSectionKind::assocty);
-  StringRef builtin = obj_file->GetReflectionSectionIdentifier(
-      swift::ReflectionSectionKind::builtin);
-  StringRef capture = obj_file->GetReflectionSectionIdentifier(
-      swift::ReflectionSectionKind::capture);
-  StringRef typeref = obj_file->GetReflectionSectionIdentifier(
-      swift::ReflectionSectionKind::typeref);
-  StringRef reflstr = obj_file->GetReflectionSectionIdentifier(
-      swift::ReflectionSectionKind::reflstr);
+  const auto obj_format_type =
+      obj_file->GetArchitecture().GetTriple().getObjectFormat();
+  auto obj_file_format_up = GetObjectFileFormat(obj_format_type);
+  if (!obj_file_format_up)
+    return false;
+
+  StringRef field_md =
+      obj_file_format_up->getSectionName(swift::ReflectionSectionKind::fieldmd);
+  StringRef assocty =
+      obj_file_format_up->getSectionName(swift::ReflectionSectionKind::assocty);
+  StringRef builtin =
+      obj_file_format_up->getSectionName(swift::ReflectionSectionKind::builtin);
+  StringRef capture =
+      obj_file_format_up->getSectionName(swift::ReflectionSectionKind::capture);
+  StringRef typeref =
+      obj_file_format_up->getSectionName(swift::ReflectionSectionKind::typeref);
+  StringRef reflstr =
+      obj_file_format_up->getSectionName(swift::ReflectionSectionKind::reflstr);
 
   bool hasReflectionSection = false;
   hasReflectionSection |= findSectionInObject(field_md);
@@ -629,28 +660,6 @@ void SwiftLanguageRuntime::ModulesDidLoad(const ModuleList &module_list) {
   }
 }
 
-static std::unique_ptr<swift::SwiftObjectFileFormat>
-GetObjectFileFormat(llvm::Triple::ObjectFormatType obj_format_type) {
-  std::unique_ptr<swift::SwiftObjectFileFormat> obj_file_format;
-  switch (obj_format_type) {
-  case llvm::Triple::MachO:
-    obj_file_format = std::make_unique<swift::SwiftObjectFileFormatMachO>();
-    break;
-  case llvm::Triple::ELF:
-    obj_file_format = std::make_unique<swift::SwiftObjectFileFormatELF>();
-    break;
-  case llvm::Triple::COFF:
-    obj_file_format = std::make_unique<swift::SwiftObjectFileFormatCOFF>();
-    break;
-  default:
-    if (Log *log = GetLog(LLDBLog::Types))
-      log->Printf("%s: Could not find out swift reflection section names for "
-                  "object format type.",
-                  __FUNCTION__);
-  }
-  return obj_file_format;
-}
-
 static llvm::SmallVector<llvm::StringRef, 1>
 GetLikelySwiftImageNamesForModule(ModuleSP module) {
   if (!module || !module->GetFileSpec())

lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp

@@ -45,10 +45,6 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/MipsABIFlags.h"
 
-#ifdef LLDB_ENABLE_SWIFT
-#include "swift/ABI/ObjectFile.h"
-#endif //LLDB_ENABLE_SWIFT
-
 #define CASE_AND_STREAM(s, def, width)                                         \
   case def:                                                                    \
     s->Printf("%-*s", width, #def);                                            \
@@ -3588,13 +3584,3 @@ ObjectFileELF::MapFileDataWritable(const FileSpec &file, uint64_t Size,
   return FileSystem::Instance().CreateWritableDataBuffer(file.GetPath(), Size,
                                                          Offset);
 }
-
-llvm::StringRef ObjectFileELF::GetReflectionSectionIdentifier(
-    swift::ReflectionSectionKind section) {
-#ifdef LLDB_ENABLE_SWIFT
-  swift::SwiftObjectFileFormatELF file_format_elf;
-  return file_format_elf.getSectionName(section);
-#else
-  llvm_unreachable("Swift support disabled");
-#endif //LLDB_ENABLE_SWIFT
-}

lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.h

@@ -398,9 +398,6 @@ class ObjectFileELF : public lldb_private::ObjectFile {
   /// .gnu_debugdata section or \c nullptr if an error occured or if there's no
   /// section with that name.
   std::shared_ptr<ObjectFileELF> GetGnuDebugDataObjectFile();
-
-  llvm::StringRef
-  GetReflectionSectionIdentifier(swift::ReflectionSectionKind section) override;
 };
 
 #endif // LLDB_SOURCE_PLUGINS_OBJECTFILE_ELF_OBJECTFILEELF_H

lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp

@@ -53,7 +53,6 @@
 
 #include "ObjectFileMachO.h"
 #ifdef LLDB_ENABLE_SWIFT
-#include "swift/ABI/ObjectFile.h"
 #include "Plugins/LanguageRuntime/Swift/SwiftLanguageRuntime.h"
 #endif //LLDB_ENABLE_SWIFT
 
@@ -6946,16 +6945,6 @@ bool ObjectFileMachO::SaveCore(const lldb::ProcessSP &process_sp,
   return false;
 }
 
-llvm::StringRef ObjectFileMachO::GetReflectionSectionIdentifier(
-    swift::ReflectionSectionKind section) {
-#ifdef LLDB_ENABLE_SWIFT
-  swift::SwiftObjectFileFormatMachO file_format_mach_o;
-  return file_format_mach_o.getSectionName(section);
-#else
-  llvm_unreachable("Swift support disabled");
-#endif //LLDB_ENABLE_SWIFT
-}
-
 ObjectFileMachO::MachOCorefileAllImageInfos
 ObjectFileMachO::GetCorefileAllImageInfos() {
   MachOCorefileAllImageInfos image_infos;

lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.h

@@ -228,9 +228,6 @@ class ObjectFileMachO : public lldb_private::ObjectFile {
 
   bool SectionIsLoadable(const lldb_private::Section *section);
 
-  llvm::StringRef
-  GetReflectionSectionIdentifier(swift::ReflectionSectionKind section) override;
-
   /// A corefile may include metadata about all of the binaries that were
   /// present in the process when the corefile was taken.  This is only
   /// implemented for Mach-O files for now; we'll generalize it when we

lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp

@@ -40,10 +40,6 @@
 #include "llvm/TargetParser/Host.h"
 #include <optional>
 
-#ifdef LLDB_ENABLE_SWIFT
-#include "swift/ABI/ObjectFile.h"
-#endif //LLDB_ENABLE_SWIFT
-
 #define IMAGE_DOS_SIGNATURE 0x5A4D    // MZ
 #define IMAGE_NT_SIGNATURE 0x00004550 // PE00
 #define OPT_HEADER_MAGIC_PE32 0x010b
@@ -1434,13 +1430,3 @@ ObjectFile::Type ObjectFilePECOFF::CalculateType() {
 }
 
 ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; }
-
-llvm::StringRef ObjectFilePECOFF::GetReflectionSectionIdentifier(
-    swift::ReflectionSectionKind section) {
-#ifdef LLDB_ENABLE_SWIFT
-  swift::SwiftObjectFileFormatCOFF file_format_coff;
-  return file_format_coff.getSectionName(section);
-#else
-  llvm_unreachable("Swift support disabled");
-#endif //LLDB_ENABLE_SWIFT
-}

lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.h

@@ -265,9 +265,6 @@ class ObjectFilePECOFF : public lldb_private::ObjectFile {
                                           const section_header_t &sect);
   size_t GetSectionDataSize(lldb_private::Section *section) override;
 
-  llvm::StringRef
-  GetReflectionSectionIdentifier(swift::ReflectionSectionKind section) override;
-
   typedef std::vector<section_header_t> SectionHeaderColl;
   typedef SectionHeaderColl::iterator SectionHeaderCollIter;
   typedef SectionHeaderColl::const_iterator SectionHeaderCollConstIter;

lldb/source/Symbol/ObjectFile.cpp

@@ -732,13 +732,6 @@ void llvm::format_provider<ObjectFile::Strata>::format(
   }
 }
 
-llvm::StringRef ObjectFile::GetReflectionSectionIdentifier(
-    swift::ReflectionSectionKind section) {
-  assert(false &&
-         "Base class's GetReflectionSectionIdentifier should not be called");
-  return "";
-}
-
 Symtab *ObjectFile::GetSymtab() {
   ModuleSP module_sp(GetModule());
   if (module_sp) {