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merge(3p/absl): subtree merge of Abseil up to e19260f

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... notably, this includes Abseil's own StatusOr type, which
conflicted with our implementation (that was taken from TensorFlow).

Change-Id: Ie7d6764b64055caaeb8dc7b6b9d066291e6b538f
This commit is contained in:
Vincent Ambo 2020-11-21 14:43:54 +01:00
parent cc27324d02
commit 082c006c04
854 changed files with 11260 additions and 5296 deletions
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41
third_party/abseil_cpp/absl/flags/internal/flag.h vendored
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@ -482,7 +482,8 @@ class FlagImpl final : public CommandLineFlag {
friend class FlagState;
// Ensures that `data_guard_` is initialized and returns it.
absl::Mutex* DataGuard() const ABSL_LOCK_RETURNED((absl::Mutex*)&data_guard_);
absl::Mutex* DataGuard() const
ABSL_LOCK_RETURNED(reinterpret_cast<absl::Mutex*>(data_guard_));
// Returns heap allocated value of type T initialized with default value.
std::unique_ptr<void, DynValueDeleter> MakeInitValue() const
ABSL_EXCLUSIVE_LOCKS_REQUIRED(*DataGuard());
@ -631,20 +632,9 @@ class Flag {
std::string CurrentValue() const { return impl_.CurrentValue(); }
private:
template <typename U, bool do_register>
template <typename, bool>
friend class FlagRegistrar;
#if !defined(_MSC_VER) || defined(__clang__)
template <typename U>
friend U absl::GetFlag(const flags_internal::Flag<U>& flag);
template <typename U>
friend void absl::SetFlag(flags_internal::Flag<U>* flag, const U& v);
template <typename U, typename V>
friend void absl::SetFlag(flags_internal::Flag<U>* flag, const V& v);
#else
template <typename U>
friend class absl::Flag;
#endif
friend class FlagImplPeer;
T Get() const {
// See implementation notes in CommandLineFlag::Get().
@ -667,10 +657,6 @@ class Flag {
impl_.Write(&v);
}
template <typename U>
friend const CommandLineFlag& absl::GetFlagReflectionHandle(
const absl::Flag<U>& f);
// Access to the reflection.
const CommandLineFlag& Reflect() const { return impl_; }
@ -682,6 +668,25 @@ class Flag {
FlagValue<T> value_;
};
///////////////////////////////////////////////////////////////////////////////
// Trampoline for friend access
class FlagImplPeer {
public:
template <typename T, typename FlagType>
static T InvokeGet(const FlagType& flag) {
return flag.Get();
}
template <typename FlagType, typename T>
static void InvokeSet(FlagType& flag, const T& v) {
flag.Set(v);
}
template <typename FlagType>
static const CommandLineFlag& InvokeReflect(const FlagType& f) {
return f.Reflect();
}
};
///////////////////////////////////////////////////////////////////////////////
// Implementation of Flag value specific operations routine.
template <typename T>