| // Copyright 2018 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_INL_H_ |
| #define V8_MAYBE_HANDLES_INL_H_ |
| |
| #include "src/maybe-handles.h" |
| |
| #include "src/handles-inl.h" |
| #include "src/objects/maybe-object-inl.h" |
| |
| namespace v8 { |
| namespace internal { |
| template <typename T> |
| MaybeHandle<T>::MaybeHandle(T* object, Isolate* isolate) |
| : MaybeHandle(handle(object, isolate)) {} |
| |
| MaybeObjectHandle::MaybeObjectHandle() |
| : reference_type_(HeapObjectReferenceType::STRONG), |
| handle_(Handle<Object>::null()) {} |
| |
| MaybeObjectHandle::MaybeObjectHandle(MaybeObject* object, Isolate* isolate) { |
| HeapObject* heap_object; |
| DCHECK(!object->IsClearedWeakHeapObject()); |
| if (object->ToWeakHeapObject(&heap_object)) { |
| handle_ = handle(heap_object, isolate); |
| reference_type_ = HeapObjectReferenceType::WEAK; |
| } else { |
| handle_ = handle(object->ToObject(), isolate); |
| reference_type_ = HeapObjectReferenceType::STRONG; |
| } |
| } |
| |
| MaybeObjectHandle::MaybeObjectHandle(Handle<Object> object) |
| : reference_type_(HeapObjectReferenceType::STRONG), handle_(object) {} |
| |
| MaybeObjectHandle::MaybeObjectHandle(Object* object, Isolate* isolate) |
| : reference_type_(HeapObjectReferenceType::STRONG), |
| handle_(object, isolate) {} |
| |
| MaybeObjectHandle::MaybeObjectHandle(Object* object, |
| HeapObjectReferenceType reference_type, |
| Isolate* isolate) |
| : reference_type_(reference_type), handle_(handle(object, isolate)) {} |
| |
| MaybeObjectHandle::MaybeObjectHandle(Handle<Object> object, |
| HeapObjectReferenceType reference_type) |
| : reference_type_(reference_type), handle_(object) {} |
| |
| MaybeObjectHandle MaybeObjectHandle::Weak(Handle<Object> object) { |
| return MaybeObjectHandle(object, HeapObjectReferenceType::WEAK); |
| } |
| |
| MaybeObjectHandle MaybeObjectHandle::Weak(Object* object, Isolate* isolate) { |
| return MaybeObjectHandle(object, HeapObjectReferenceType::WEAK, isolate); |
| } |
| |
| MaybeObject* MaybeObjectHandle::operator*() const { |
| if (reference_type_ == HeapObjectReferenceType::WEAK) { |
| return HeapObjectReference::Weak(*handle_.ToHandleChecked()); |
| } else { |
| return MaybeObject::FromObject(*handle_.ToHandleChecked()); |
| } |
| } |
| |
| MaybeObject* MaybeObjectHandle::operator->() const { |
| if (reference_type_ == HeapObjectReferenceType::WEAK) { |
| return HeapObjectReference::Weak(*handle_.ToHandleChecked()); |
| } else { |
| return MaybeObject::FromObject(*handle_.ToHandleChecked()); |
| } |
| } |
| |
| Handle<Object> MaybeObjectHandle::object() const { |
| return handle_.ToHandleChecked(); |
| } |
| |
| inline MaybeObjectHandle handle(MaybeObject* object, Isolate* isolate) { |
| return MaybeObjectHandle(object, isolate); |
| } |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_MAYBE_HANDLES_INL_H_ |