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-rw-r--r--third_party/abseil_cpp/absl/container/internal/test_instance_tracker.h274
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diff --git a/third_party/abseil_cpp/absl/container/internal/test_instance_tracker.h b/third_party/abseil_cpp/absl/container/internal/test_instance_tracker.h
deleted file mode 100644
index 5ff6fd714e..0000000000
--- a/third_party/abseil_cpp/absl/container/internal/test_instance_tracker.h
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@@ -1,274 +0,0 @@
-// Copyright 2017 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef ABSL_CONTAINER_INTERNAL_TEST_INSTANCE_TRACKER_H_
-#define ABSL_CONTAINER_INTERNAL_TEST_INSTANCE_TRACKER_H_
-
-#include <cstdlib>
-#include <ostream>
-
-#include "absl/types/compare.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace test_internal {
-
-// A type that counts number of occurrences of the type, the live occurrences of
-// the type, as well as the number of copies, moves, swaps, and comparisons that
-// have occurred on the type. This is used as a base class for the copyable,
-// copyable+movable, and movable types below that are used in actual tests. Use
-// InstanceTracker in tests to track the number of instances.
-class BaseCountedInstance {
- public:
-  explicit BaseCountedInstance(int x) : value_(x) {
-    ++num_instances_;
-    ++num_live_instances_;
-  }
-  BaseCountedInstance(const BaseCountedInstance& x)
-      : value_(x.value_), is_live_(x.is_live_) {
-    ++num_instances_;
-    if (is_live_) ++num_live_instances_;
-    ++num_copies_;
-  }
-  BaseCountedInstance(BaseCountedInstance&& x)
-      : value_(x.value_), is_live_(x.is_live_) {
-    x.is_live_ = false;
-    ++num_instances_;
-    ++num_moves_;
-  }
-  ~BaseCountedInstance() {
-    --num_instances_;
-    if (is_live_) --num_live_instances_;
-  }
-
-  BaseCountedInstance& operator=(const BaseCountedInstance& x) {
-    value_ = x.value_;
-    if (is_live_) --num_live_instances_;
-    is_live_ = x.is_live_;
-    if (is_live_) ++num_live_instances_;
-    ++num_copies_;
-    return *this;
-  }
-  BaseCountedInstance& operator=(BaseCountedInstance&& x) {
-    value_ = x.value_;
-    if (is_live_) --num_live_instances_;
-    is_live_ = x.is_live_;
-    x.is_live_ = false;
-    ++num_moves_;
-    return *this;
-  }
-
-  bool operator==(const BaseCountedInstance& x) const {
-    ++num_comparisons_;
-    return value_ == x.value_;
-  }
-
-  bool operator!=(const BaseCountedInstance& x) const {
-    ++num_comparisons_;
-    return value_ != x.value_;
-  }
-
-  bool operator<(const BaseCountedInstance& x) const {
-    ++num_comparisons_;
-    return value_ < x.value_;
-  }
-
-  bool operator>(const BaseCountedInstance& x) const {
-    ++num_comparisons_;
-    return value_ > x.value_;
-  }
-
-  bool operator<=(const BaseCountedInstance& x) const {
-    ++num_comparisons_;
-    return value_ <= x.value_;
-  }
-
-  bool operator>=(const BaseCountedInstance& x) const {
-    ++num_comparisons_;
-    return value_ >= x.value_;
-  }
-
-  absl::weak_ordering compare(const BaseCountedInstance& x) const {
-    ++num_comparisons_;
-    return value_ < x.value_
-               ? absl::weak_ordering::less
-               : value_ == x.value_ ? absl::weak_ordering::equivalent
-                                    : absl::weak_ordering::greater;
-  }
-
-  int value() const {
-    if (!is_live_) std::abort();
-    return value_;
-  }
-
-  friend std::ostream& operator<<(std::ostream& o,
-                                  const BaseCountedInstance& v) {
-    return o << "[value:" << v.value() << "]";
-  }
-
-  // Implementation of efficient swap() that counts swaps.
-  static void SwapImpl(
-      BaseCountedInstance& lhs,    // NOLINT(runtime/references)
-      BaseCountedInstance& rhs) {  // NOLINT(runtime/references)
-    using std::swap;
-    swap(lhs.value_, rhs.value_);
-    swap(lhs.is_live_, rhs.is_live_);
-    ++BaseCountedInstance::num_swaps_;
-  }
-
- private:
-  friend class InstanceTracker;
-
-  int value_;
-
-  // Indicates if the value is live, ie it hasn't been moved away from.
-  bool is_live_ = true;
-
-  // Number of instances.
-  static int num_instances_;
-
-  // Number of live instances (those that have not been moved away from.)
-  static int num_live_instances_;
-
-  // Number of times that BaseCountedInstance objects were moved.
-  static int num_moves_;
-
-  // Number of times that BaseCountedInstance objects were copied.
-  static int num_copies_;
-
-  // Number of times that BaseCountedInstance objects were swapped.
-  static int num_swaps_;
-
-  // Number of times that BaseCountedInstance objects were compared.
-  static int num_comparisons_;
-};
-
-// Helper to track the BaseCountedInstance instance counters. Expects that the
-// number of instances and live_instances are the same when it is constructed
-// and when it is destructed.
-class InstanceTracker {
- public:
-  InstanceTracker()
-      : start_instances_(BaseCountedInstance::num_instances_),
-        start_live_instances_(BaseCountedInstance::num_live_instances_) {
-    ResetCopiesMovesSwaps();
-  }
-  ~InstanceTracker() {
-    if (instances() != 0) std::abort();
-    if (live_instances() != 0) std::abort();
-  }
-
-  // Returns the number of BaseCountedInstance instances both containing valid
-  // values and those moved away from compared to when the InstanceTracker was
-  // constructed
-  int instances() const {
-    return BaseCountedInstance::num_instances_ - start_instances_;
-  }
-
-  // Returns the number of live BaseCountedInstance instances compared to when
-  // the InstanceTracker was constructed
-  int live_instances() const {
-    return BaseCountedInstance::num_live_instances_ - start_live_instances_;
-  }
-
-  // Returns the number of moves on BaseCountedInstance objects since
-  // construction or since the last call to ResetCopiesMovesSwaps().
-  int moves() const { return BaseCountedInstance::num_moves_ - start_moves_; }
-
-  // Returns the number of copies on BaseCountedInstance objects since
-  // construction or the last call to ResetCopiesMovesSwaps().
-  int copies() const {
-    return BaseCountedInstance::num_copies_ - start_copies_;
-  }
-
-  // Returns the number of swaps on BaseCountedInstance objects since
-  // construction or the last call to ResetCopiesMovesSwaps().
-  int swaps() const { return BaseCountedInstance::num_swaps_ - start_swaps_; }
-
-  // Returns the number of comparisons on BaseCountedInstance objects since
-  // construction or the last call to ResetCopiesMovesSwaps().
-  int comparisons() const {
-    return BaseCountedInstance::num_comparisons_ - start_comparisons_;
-  }
-
-  // Resets the base values for moves, copies, comparisons, and swaps to the
-  // current values, so that subsequent Get*() calls for moves, copies,
-  // comparisons, and swaps will compare to the situation at the point of this
-  // call.
-  void ResetCopiesMovesSwaps() {
-    start_moves_ = BaseCountedInstance::num_moves_;
-    start_copies_ = BaseCountedInstance::num_copies_;
-    start_swaps_ = BaseCountedInstance::num_swaps_;
-    start_comparisons_ = BaseCountedInstance::num_comparisons_;
-  }
-
- private:
-  int start_instances_;
-  int start_live_instances_;
-  int start_moves_;
-  int start_copies_;
-  int start_swaps_;
-  int start_comparisons_;
-};
-
-// Copyable, not movable.
-class CopyableOnlyInstance : public BaseCountedInstance {
- public:
-  explicit CopyableOnlyInstance(int x) : BaseCountedInstance(x) {}
-  CopyableOnlyInstance(const CopyableOnlyInstance& rhs) = default;
-  CopyableOnlyInstance& operator=(const CopyableOnlyInstance& rhs) = default;
-
-  friend void swap(CopyableOnlyInstance& lhs, CopyableOnlyInstance& rhs) {
-    BaseCountedInstance::SwapImpl(lhs, rhs);
-  }
-
-  static bool supports_move() { return false; }
-};
-
-// Copyable and movable.
-class CopyableMovableInstance : public BaseCountedInstance {
- public:
-  explicit CopyableMovableInstance(int x) : BaseCountedInstance(x) {}
-  CopyableMovableInstance(const CopyableMovableInstance& rhs) = default;
-  CopyableMovableInstance(CopyableMovableInstance&& rhs) = default;
-  CopyableMovableInstance& operator=(const CopyableMovableInstance& rhs) =
-      default;
-  CopyableMovableInstance& operator=(CopyableMovableInstance&& rhs) = default;
-
-  friend void swap(CopyableMovableInstance& lhs, CopyableMovableInstance& rhs) {
-    BaseCountedInstance::SwapImpl(lhs, rhs);
-  }
-
-  static bool supports_move() { return true; }
-};
-
-// Only movable, not default-constructible.
-class MovableOnlyInstance : public BaseCountedInstance {
- public:
-  explicit MovableOnlyInstance(int x) : BaseCountedInstance(x) {}
-  MovableOnlyInstance(MovableOnlyInstance&& other) = default;
-  MovableOnlyInstance& operator=(MovableOnlyInstance&& other) = default;
-
-  friend void swap(MovableOnlyInstance& lhs, MovableOnlyInstance& rhs) {
-    BaseCountedInstance::SwapImpl(lhs, rhs);
-  }
-
-  static bool supports_move() { return true; }
-};
-
-}  // namespace test_internal
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_CONTAINER_INTERNAL_TEST_INSTANCE_TRACKER_H_