Generator test.

[Jane Chen]

Embedding v8 3.24.

Is there any API to test whether a v8 object is a generator?  I tried GetConstructorName(), or GetConstructor(), then GetName(), neither gives me "GeneratorFunctionPropotype" which I got in JavaScript using g().constructor.name.  The best I seem to get is ObjectProtoToString() which returns [object Generator].

Any advice is really appreciated!

[Andy Wingo]

On Fri 28 Aug 2015 07:05, Jane Chen <jxch...@gmail.com> writes:

> Embedding v8 3.24.
>
> Is there any API to test whether a v8 object is a generator? I tried
> GetConstructorName(), or GetConstructor(), then GetName(), neither gives
> me "GeneratorFunctionPropotype" which I got in JavaScript using g

> ().constructor.name. The best I seem to get is ObjectProtoToString()

> which returns [object Generator].
>
> Any advice is really appreciated!

var GeneratorFunction = Object.getPrototypeOf(function*(){}).constructor;

function isGeneratorFunction(f) {
return f instanceof GeneratorFunction;
}

Cheers,

Andy

[Jane Chen]

Is there a v8 c++ API to achieve this?

[Ben Noordhuis]

On Fri, Aug 28, 2015 at 5:18 PM, Jane Chen <jxch...@gmail.com> wrote:
> Is there a v8 c++ API to achieve this?

There is, v8::Value::IsGeneratorFunction(), but it's not available in
V8 3.24. It was added in 4.2.

[Jane Chen]

Thanks Ben.  I'm working on upgrading v8 to 4.x next.