1 files changed, 0 insertions, 121 deletions
diff --git a/deps/v8/src/maybe-handles.h b/deps/v8/src/maybe-handles.h
deleted file mode 100644
index 8a68c85f48..0000000000
--- a/deps/v8/src/maybe-handles.h
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef V8_MAYBE_HANDLES_H_
-#define V8_MAYBE_HANDLES_H_
-
-#include <type_traits>
-
-#include "src/handles.h"
-
-namespace v8 {
-namespace internal {
-
-// ----------------------------------------------------------------------------
-// A Handle can be converted into a MaybeHandle. Converting a MaybeHandle
-// into a Handle requires checking that it does not point to nullptr.  This
-// ensures nullptr checks before use.
-//
-// Also note that Handles do not provide default equality comparison or hashing
-// operators on purpose. Such operators would be misleading, because intended
-// semantics is ambiguous between Handle location and object identity.
-template <typename T>
-class MaybeHandle final {
- public:
-  V8_INLINE MaybeHandle() = default;
-
-  // Constructor for handling automatic up casting from Handle.
-  // Ex. Handle<JSArray> can be passed when MaybeHandle<Object> is expected.
-  template <typename S, typename = typename std::enable_if<
-                            std::is_convertible<S*, T*>::value>::type>
-  V8_INLINE MaybeHandle(Handle<S> handle) : location_(handle.location_) {}
-
-  // Constructor for handling automatic up casting.
-  // Ex. MaybeHandle<JSArray> can be passed when Handle<Object> is expected.
-  template <typename S, typename = typename std::enable_if<
-                            std::is_convertible<S*, T*>::value>::type>
-  V8_INLINE MaybeHandle(MaybeHandle<S> maybe_handle)
-      : location_(maybe_handle.location_) {}
-
-  V8_INLINE MaybeHandle(T object, Isolate* isolate);
-
-  V8_INLINE void Assert() const { DCHECK_NOT_NULL(location_); }
-  V8_INLINE void Check() const { CHECK_NOT_NULL(location_); }
-
-  V8_INLINE Handle<T> ToHandleChecked() const {
-    Check();
-    return Handle<T>(location_);
-  }
-
-  // Convert to a Handle with a type that can be upcasted to.
-  template <typename S>
-  V8_INLINE bool ToHandle(Handle<S>* out) const {
-    if (location_ == nullptr) {
-      *out = Handle<T>::null();
-      return false;
-    } else {
-      *out = Handle<T>(location_);
-      return true;
-    }
-  }
-
-  // Returns the raw address where this handle is stored. This should only be
-  // used for hashing handles; do not ever try to dereference it.
-  V8_INLINE Address address() const {
-    return reinterpret_cast<Address>(location_);
-  }
-
-  bool is_null() const { return location_ == nullptr; }
-
- protected:
-  Address* location_ = nullptr;
-
-  // MaybeHandles of different classes are allowed to access each
-  // other's location_.
-  template <typename>
-  friend class MaybeHandle;
-};
-
-// A handle which contains a potentially weak pointer. Keeps it alive (strongly)
-// while the MaybeObjectHandle is alive.
-class MaybeObjectHandle {
- public:
-  inline MaybeObjectHandle();
-  inline MaybeObjectHandle(MaybeObject object, Isolate* isolate);
-  inline MaybeObjectHandle(Object object, Isolate* isolate);
-  inline explicit MaybeObjectHandle(Handle<Object> object);
-
-  static inline MaybeObjectHandle Weak(Object object, Isolate* isolate);
-  static inline MaybeObjectHandle Weak(Handle<Object> object);
-
-  inline MaybeObject operator*() const;
-  inline MaybeObject operator->() const;
-  inline Handle<Object> object() const;
-
-  bool is_identical_to(const MaybeObjectHandle& other) const {
-    Handle<Object> this_handle;
-    Handle<Object> other_handle;
-    return reference_type_ == other.reference_type_ &&
-           handle_.ToHandle(&this_handle) ==
-               other.handle_.ToHandle(&other_handle) &&
-           this_handle.is_identical_to(other_handle);
-  }
-
-  bool is_null() const { return handle_.is_null(); }
-
- private:
-  inline MaybeObjectHandle(Object object,
-                           HeapObjectReferenceType reference_type,
-                           Isolate* isolate);
-  inline MaybeObjectHandle(Handle<Object> object,
-                           HeapObjectReferenceType reference_type);
-
-  HeapObjectReferenceType reference_type_;
-  MaybeHandle<Object> handle_;
-};
-
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_MAYBE_HANDLES_H_