Sharing of SharedArrayBuffer via PostMessage transfer

Source/bindings/templates/methods.cpp

 {% from 'conversions.cpp' import declare_enum_validation_variable, v8_value_to_local_cpp_value %}
 
 
 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 {% filter conditional(method.conditional_string) %}
 {% if method.returns_promise and method.has_exception_state %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}Promise(const v8::FunctionCallbackInfo<v8::Value>& info, ExceptionState& exceptionState)
 {% else %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info)
@@ skipping 437 matching lines @@
 void postMessageImpl(const char* interfaceName, {{cpp_class}}* instance, const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "postMessage", interfaceName, info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         setMinimumArityTypeError(exceptionState, 1, info.Length());
         exceptionState.throwIfNeeded();
         return;
     }
     OwnPtrWillBeRawPtr<MessagePortArray> ports = adoptPtrWillBeNoop(new MessagePortArray);
     ArrayBufferArray arrayBuffers;
+    SharedArrayBufferArray sharedArrayBuffers;
     if (info.Length() > 1) {
         const int transferablesArgIndex = 1;
-        if (!SerializedScriptValue::extractTransferables(info.GetIsolate(), info[transferablesArgIndex], transferablesArgIndex, *ports, arrayBuffers, exceptionState)) {
+        if (!SerializedScriptValue::extractTransferables(info.GetIsolate(), info[transferablesArgIndex], transferablesArgIndex, *ports, arrayBuffers, sharedArrayBuffers, exceptionState)) {
             exceptionState.throwIfNeeded();
             return;
         }
     }
-    RefPtr<SerializedScriptValue> message = SerializedScriptValueFactory::instance().create(info.GetIsolate(), info[0], ports.get(), &arrayBuffers, exceptionState);
+    RefPtr<SerializedScriptValue> message = SerializedScriptValueFactory::instance().create(info.GetIsolate(), info[0], ports.get(), &arrayBuffers, &sharedArrayBuffers, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     // FIXME: Only pass context/exceptionState if instance really requires it.
     ExecutionContext* context = currentExecutionContext(info.GetIsolate());
     instance->postMessage(context, message.release(), ports.get(), exceptionState);
     exceptionState.throwIfNeeded();
 }
 {% endmacro %}
 
 {##############################################################################}
@@ skipping 215 matching lines @@
                           if method.overloads else
                           method.runtime_enabled_function) %}
 v8::Local<v8::FunctionTemplate> functionTemplate = v8::FunctionTemplate::New(isolate, {{cpp_class_or_partial}}V8Internal::{{method.name}}MethodCallback, v8Undefined(), defaultSignature, {{method.number_of_required_arguments}});
 v8::Local<v8::Function> function = ->GetFunction(isolate->GetCurrentContext())).ToLocalChecked();
 v8CallOrCrash(prototypeObject->Set(isolate->GetCurrentContext(), v8AtomicString(isolate, "{{method.name}}"), function));
 {% endfilter %}{# runtime_enabled() #}
 {% endfilter %}{# exposed() #}
 {% endfor %}
 {% endif %}
 {%- endmacro %}