v8::Local<v8::Value> v8InternalValueTypeFrom(v8::Local<v8::Context> context, v8::Local<v8::Object> object)
{
v8::Isolate* isolate = context->GetIsolate();
v8::Local<v8::Private> privateValue = internalSubtypePrivate(isolate);
if (!object->HasPrivate(context, privateValue).FromMaybe(false))
return v8::Null(isolate);
v8::Local<v8::Value> subtypeValue;
if (!object->GetPrivate(context, privateValue).ToLocal(&subtypeValue) || !subtypeValue->IsString())
return v8::Null(isolate);
return subtypeValue;
}
v8::Local<v8::Value> V8HiddenValue::getHiddenValue(ScriptState* scriptState,
v8::Local<v8::Object> object,
v8::Local<v8::String> key) {
v8::Local<v8::Context> context = scriptState->context();
v8::Local<v8::Private> privateKey =
v8::Private::ForApi(scriptState->isolate(), key);
v8::Local<v8::Value> value;
// Callsites interpret an empty handle has absence of a result.
if (!v8CallBoolean(object->HasPrivate(context, privateKey)))
return v8::Local<v8::Value>();
if (object->GetPrivate(context, privateKey).ToLocal(&value))
return value;
return v8::Local<v8::Value>();
}