I can't understand how to get works delegates works from this doc
http://vibed.org/api/vibe.http.client/requestHTTP
I see example, but when I am looking on Prototypes I really can't
figure how to use them.
For example what does this mean:
scope void delegate(scope HTTPClientRequest) requester,
it's function that point to method inside class? Why I can not
call it like:
requestHTTP(url,
scope req,
scope res);
I am getting error:
Error: expression expected, not 'scope'
Error: found 'req' when expecting ','
Error: expression expected, not ','
Error: found 'scope' when expecting ','
---
Is it's optional parameter?
scope void delegate(scope HTTPClientRequest) requester =
cast(void delegate(scope HTTPClientRequest req))null
so I can place instead in just `null`?
