4 files changed, 9 insertions, 41 deletions
diff --git a/absl/flags/internal/commandlineflag.h b/absl/flags/internal/commandlineflag.h
index 6a0b5fa..4ac5019 100644
--- a/absl/flags/internal/commandlineflag.h
+++ b/absl/flags/internal/commandlineflag.h
@@ -178,9 +178,6 @@ class CommandLineFlag {
  public:
   constexpr CommandLineFlag() = default;
 
-  // Virtual destructor
-  virtual void Destroy() = 0;
-
   // Not copyable/assignable.
   CommandLineFlag(const CommandLineFlag&) = delete;
   CommandLineFlag& operator=(const CommandLineFlag&) = delete;
diff --git a/absl/flags/internal/flag.cc b/absl/flags/internal/flag.cc
index cfc0cf4..ba70da9 100644
--- a/absl/flags/internal/flag.cc
+++ b/absl/flags/internal/flag.cc
@@ -120,27 +120,6 @@ absl::Mutex* FlagImpl::DataGuard() const {
   return reinterpret_cast<absl::Mutex*>(&data_guard_);
 }
 
-void FlagImpl::Destroy() {
-  {
-    absl::MutexLock l(DataGuard());
-
-    // Values are heap allocated for Abseil Flags.
-    if (value_.dynamic) Delete(op_, value_.dynamic);
-
-    // Release the dynamically allocated default value if any.
-    if (DefaultKind() == FlagDefaultKind::kDynamicValue) {
-      Delete(op_, default_src_.dynamic_value);
-    }
-
-    // If this flag has an assigned callback, release callback data.
-    if (callback_) delete callback_;
-  }
-
-  absl::MutexLock l(&flag_mutex_lifetime_guard);
-  DataGuard()->~Mutex();
-  is_data_guard_inited_ = false;
-}
-
 void FlagImpl::AssertValidType(const flags_internal::FlagOpFn op) const {
   // `op` is the unmarshaling operation corresponding to the declaration
   // visibile at the call site. `op_` is the Flag's defined unmarshalling
diff --git a/absl/flags/internal/flag.h b/absl/flags/internal/flag.h
index c6c4a2f..ef30a22 100644
--- a/absl/flags/internal/flag.h
+++ b/absl/flags/internal/flag.h
@@ -290,9 +290,6 @@ class FlagImpl {
         default_src_(default_value_gen),
         data_guard_{} {}
 
-  // Forces destruction of the Flag's data.
-  void Destroy();
-
   // Constant access methods
   absl::string_view Name() const;
   std::string Filename() const;
@@ -515,8 +512,6 @@ class Flag final : public flags_internal::CommandLineFlag {
  private:
   friend class FlagState<T>;
 
-  void Destroy() override { impl_.Destroy(); }
-
   void Read(void* dst) const override { impl_.Read(dst); }
   FlagOpFn TypeId() const override { return &FlagOps<T>; }
 
diff --git a/absl/flags/internal/registry.cc b/absl/flags/internal/registry.cc
index 7889b1f..2ef16e8 100644
--- a/absl/flags/internal/registry.cc
+++ b/absl/flags/internal/registry.cc
@@ -57,11 +57,7 @@ namespace flags_internal {
 class FlagRegistry {
  public:
   FlagRegistry() = default;
-  ~FlagRegistry() {
-    for (auto& p : flags_) {
-      p.second->Destroy();
-    }
-  }
+  ~FlagRegistry() = default;
 
   // Store a flag in this registry.  Takes ownership of *flag.
   void RegisterFlag(CommandLineFlag* flag);
@@ -113,6 +109,7 @@ class FlagRegistryLock {
   FlagRegistry* const fr_;
 };
 
+void DestroyRetiredFlag(CommandLineFlag* flag);
 }  // namespace
 
 void FlagRegistry::RegisterFlag(CommandLineFlag* flag) {
@@ -140,8 +137,8 @@ void FlagRegistry::RegisterFlag(CommandLineFlag* flag) {
                        flag->Typename(), "', respectively."),
           true);
     } else if (old_flag->IsRetired()) {
-      // Retired definitions are idempotent. Just keep the old one.
-      flag->Destroy();
+      // Retired flag can just be deleted.
+      DestroyRetiredFlag(flag);
       return;
     } else if (old_flag->Filename() != flag->Filename()) {
       flags_internal::ReportUsageError(
@@ -291,11 +288,6 @@ class RetiredFlagObj final : public flags_internal::CommandLineFlag {
       : name_(name), op_(ops) {}
 
  private:
-  void Destroy() override {
-    // Values are heap allocated for Retired Flags.
-    delete this;
-  }
-
   absl::string_view Name() const override { return name_; }
   std::string Filename() const override { return "RETIRED"; }
   absl::string_view Typename() const override { return ""; }
@@ -328,6 +320,11 @@ class RetiredFlagObj final : public flags_internal::CommandLineFlag {
   const FlagOpFn op_;
 };
 
+void DestroyRetiredFlag(flags_internal::CommandLineFlag* flag) {
+  assert(flag->IsRetired());
+  delete static_cast<RetiredFlagObj*>(flag);
+}
+
 }  // namespace
 
 bool Retire(const char* name, FlagOpFn ops) {