isolate already entered in this moment. Context can't be entered before Set, because context takes global as param:
Local<Context> context = Context::New(isolate, nullptr, *global*); if create *global* before Context::New, and call Set after, then: <unknown>:0: Uncaught ReferenceError: i is not defined # # Fatal error in v8::ToLocalChecked # Empty MaybeLocal. # in string: auto i = context->Global()->Get(context, v8_str(isolate, "i")).ToLocalChecked(); вторник, 8 августа 2017 г., 13:58:16 UTC+3 пользователь Ben Noordhuis написал: > > On Tue, Aug 8, 2017 at 11:51 AM, <dark...@gmail.com <javascript:>> > wrote: > > Here is sample: > > > > auto isolate = v8::Isolate::GetCurrent(); > > > > Local<ObjectTemplate> global = ObjectTemplate::New(isolate); > > > > global->Set(v8_str(isolate, "i"), Number::New(isolate, 4)); > > > > Local<Context> context = Context::New(isolate, nullptr, global); > > Context::Scope context_scope(context); > > > > auto i = context->Global()->Get(context, v8_str(isolate, > > "i")).ToLocalChecked(); > > > > std::cout << "i: " << i->NumberValue() << std::endl; > > > > out: > > > > i: 4 > > > > But replace: > > > > global->Set(v8_str(isolate, "i"), Number::New(isolate, 4)); > > > > with > > > > global->Set(v8_str(isolate, "i"), Number::New(isolate, 4.4)); > > > > and out: > > > > i: nan > > > > Why?? > > Does it work when you enter the isolate and the context before setting > the property? > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
