Revert of Implement SharedArrayBuffer

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 709dcc2b8215072581d28f08aef14eece9ba9a5e..125a31be06f94b802e9f61a465335ee641b8c189 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -2677,8 +2677,7 @@
 
 
 bool Value::IsArrayBuffer() const {
-  i::Handle<i::Object> obj = Utils::OpenHandle(this);
-  return obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj)->is_shared();
+  return Utils::OpenHandle(this)->IsJSArrayBuffer();
 }
 
 
@@ -2699,7 +2698,6 @@
            i::JSTypedArray::cast(*obj)->type() == i::kExternal##Type##Array; \
   }
 
-
 TYPED_ARRAYS(VALUE_IS_TYPED_ARRAY)
 
 #undef VALUE_IS_TYPED_ARRAY
@@ -2707,12 +2705,6 @@
 
 bool Value::IsDataView() const {
   return Utils::OpenHandle(this)->IsJSDataView();
-}
-
-
-bool Value::IsSharedArrayBuffer() const {
-  i::Handle<i::Object> obj = Utils::OpenHandle(this);
-  return obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared();
 }
 
 
@@ -3092,9 +3084,9 @@
 
 void v8::ArrayBuffer::CheckCast(Value* that) {
   i::Handle<i::Object> obj = Utils::OpenHandle(that);
-  Utils::ApiCheck(
-      obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj)->is_shared(),
-      "v8::ArrayBuffer::Cast()", "Could not convert to ArrayBuffer");
+  Utils::ApiCheck(obj->IsJSArrayBuffer(),
+                  "v8::ArrayBuffer::Cast()",
+                  "Could not convert to ArrayBuffer");
 }
 
 
@@ -3134,15 +3126,6 @@
   Utils::ApiCheck(obj->IsJSDataView(),
                   "v8::DataView::Cast()",
                   "Could not convert to DataView");
-}
-
-
-void v8::SharedArrayBuffer::CheckCast(Value* that) {
-  i::Handle<i::Object> obj = Utils::OpenHandle(that);
-  Utils::ApiCheck(
-      obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj)->is_shared(),
-      "v8::SharedArrayBuffer::Cast()",
-      "Could not convert to SharedArrayBuffer");
 }
 
 
@@ -6320,7 +6303,7 @@
   LOG_API(i_isolate, "v8::ArrayBuffer::New(size_t)");
   ENTER_V8(i_isolate);
   i::Handle<i::JSArrayBuffer> obj =
-      i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kNotShared);
+      i_isolate->factory()->NewJSArrayBuffer();
   i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length);
   return Utils::ToLocal(obj);
 }
@@ -6333,7 +6316,7 @@
   LOG_API(i_isolate, "v8::ArrayBuffer::New(void*, size_t)");
   ENTER_V8(i_isolate);
   i::Handle<i::JSArrayBuffer> obj =
-      i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kNotShared);
+      i_isolate->factory()->NewJSArrayBuffer();
   i::Runtime::SetupArrayBuffer(i_isolate, obj,
                                mode == ArrayBufferCreationMode::kExternalized,
                                data, byte_length);
@@ -6439,66 +6422,6 @@
 }
 
 
-bool v8::SharedArrayBuffer::IsExternal() const {
-  return Utils::OpenHandle(this)->is_external();
-}
-
-
-v8::SharedArrayBuffer::Contents v8::SharedArrayBuffer::Externalize() {
-  i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this);
-  i::Isolate* isolate = self->GetIsolate();
-  Utils::ApiCheck(!self->is_external(), "v8::SharedArrayBuffer::Externalize",
-                  "SharedArrayBuffer already externalized");
-  self->set_is_external(true);
-  isolate->heap()->UnregisterArrayBuffer(self->backing_store());
-  return GetContents();
-}
-
-
-v8::SharedArrayBuffer::Contents v8::SharedArrayBuffer::GetContents() {
-  i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this);
-  size_t byte_length = static_cast<size_t>(self->byte_length()->Number());
-  Contents contents;
-  contents.data_ = self->backing_store();
-  contents.byte_length_ = byte_length;
-  return contents;
-}
-
-
-size_t v8::SharedArrayBuffer::ByteLength() const {
-  i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this);
-  return static_cast<size_t>(obj->byte_length()->Number());
-}
-
-
-Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate,
-                                                    size_t byte_length) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  LOG_API(i_isolate, "v8::SharedArrayBuffer::New(size_t)");
-  ENTER_V8(i_isolate);
-  i::Handle<i::JSArrayBuffer> obj =
-      i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kShared);
-  i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length, true,
-                                             i::SharedFlag::kShared);
-  return Utils::ToLocalShared(obj);
-}
-
-
-Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(
-    Isolate* isolate, void* data, size_t byte_length,
-    ArrayBufferCreationMode mode) {
-  i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
-  LOG_API(i_isolate, "v8::SharedArrayBuffer::New(void*, size_t)");
-  ENTER_V8(i_isolate);
-  i::Handle<i::JSArrayBuffer> obj =
-      i_isolate->factory()->NewJSArrayBuffer(i::SharedFlag::kShared);
-  i::Runtime::SetupArrayBuffer(i_isolate, obj,
-                               mode == ArrayBufferCreationMode::kExternalized,
-                               data, byte_length, i::SharedFlag::kShared);
-  return Utils::ToLocalShared(obj);
-}
-
-
 Local<Symbol> v8::Symbol::New(Isolate* isolate, Local<String> name) {
   i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
   LOG_API(i_isolate, "Symbol::New()");