Thankyou for your reply @mratsim
I tried the following:
type
Data*[T] = object
id: string
contents: T
subscribers: seq[proc(d: T)]
proc addSubscriber*[T](d: T, cb: proc(d:T)) =
d.subscribers.add(cb)
proc callSubscribers[T](d: T) =
for cb in d.subscribers:
cb(d.contents)
var dd = Data[string]()
dd.contents = "a content"
dd.id = "1"
dd.subscribers = newseq[proc(d: string)]()
dd.addSubscriber(proc(d: string) = echo $d)
dd.callSubscribers()
Run
> but I get this error:
testproc.nim(19, 3) Error: type mismatch: got <Data[system.string], proc
(d: string {.gcsafe, locks: 0.}>
but expected one of:
proc addSubscriber[T](d: T; cb: proc (d: T))
first type mismatch at position: 2
required type: proc (d: T){.closure.}
but expression 'proc (d: string) = echo [$d]' is of type: proc (d:
string){.gcsafe, locks: 0.}
expression: addSubscriber(dd, proc (d: string) = echo [$d])
Run
it seems I'm missing something
