Ugo Cei wrote:
I'm having some problems with an application that uses the Flow and XMLForms. I'm getting an invalid continuation error and after 4 hours of debugging I still cannot understand why. Tracing the execution of the flow, I've come to this snippet in xmlForm.js that I don't understand fully:
if (wk != null) { var jswk = wk.userObject; jswk.continuation(jswk); // note: not reached }
What kind of object is jswk? Is it an o.a.c.components.flow.javascript.JSWebContinuation? Where is this "continuation" method defined (assuming it is a method) and why is it passed an instance of itself?
Yes, it is. The continuation property of JSWebContinuation returns a JavaScript Continuation object, which is also a function that can be called. When you do that the current function invocation (and call stack) is discarded and replaced with the function invocation (and call stack) stored within the continuation. That's why the next line is "not reached".
I know it seems strange, but the continuation is passed "jswk" so that it will become the return value of function it was captured in.
What do you mean by "invalid continuation error"?
Regards,
Chris
