Following Lack's interface, if the result is a function, we'll use
Lack's delayed-response mechanism to handle the response from the
handler (applying the same processing as an immediate response when it
eventually shows up).
The basic approach here is to:
Make the context a lexical variable that is closed over by the
delayed-response lambdas.
Use a macro to establish the special bindings from the lexical
context, so that we can recreate the right specials in the callback.
If the result is a function, return a callback that will set up the
context, then collect a result, process it, and pass it back to the
toplevel responder callback.
Following Lack's interface, if the result is a function, we'll use Lack's delayed-response mechanism to handle the response from the handler (applying the same processing as an immediate response when it eventually shows up).
The basic approach here is to: