After researching this experimentally myself, I found that adding an
accessor to the template will cause the internal field to be
allocated. I haven't tried it, but I assume you will get the same
results by adding any field to the template.
On Sep 8, 7:39 am, "Bryan White" <[EMAIL PROTECTED]> wrote:
> This code:
> ===================
> v8::Local<v8::Object> TBDLib::V8New()
> {
> using namespace v8;
> HandleScope handle_scope;
>
> static Persistent<ObjectTemplate> tmpl;
> if(tmpl.IsEmpty())
> { // create on demand
> HandleScope tmplscope;
> Handle<ObjectTemplate> localtmpl = ObjectTemplate::New();
> localtmpl->SetInternalFieldCount(1);
> tmpl =
> Persistent<ObjectTemplate>::New(tmplscope.Close(localtmpl));
> }
>
> // create object and embed 'this'
> Handle<Object> result = tmpl->NewInstance();
> result->SetInternalField(0, External::New(this));
>
> return handle_scope.Close(result);}
>
> ======================
>
> Fails on the SetInternalField call with the message:
> #
> # Fatal error in v8::Object::SetInternalField()
> # Writing internal field out of bounds
> #
>
> Indeed at that point, result->GetInternalFieldCount() returns 0. The
> question is why.
>
> --
> Bryan White
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