Hi,
just recently i wanted to use the events module to play around with, but since I'm a newbie to nim I ran into difficulties. Considering the following code:
import events
type
StringArgsRef = ref object of EventArgs
args: string
StringArgs = object of EventArgs
args: string
proc handleevent(e: EventArgs) =
echo("handled")
ee = initEventEmitter()
ee.on("TestEvent", handleevent)
var
sArgsRef = StringArgsRef(args: "Hello")
sArgs = StringArgs(args: "Hello")
# compile error type mismatch
ee.emit("TestEvent", sArgsRef)
# works just fine, can even cast the event to StringArgs during handleevent proc
ee.emit("TestEvent", sArgs)
The problem is that EventArgs is not defined as a ref object, it expects the struct itself not a pointer, so you have to dereference it with `[]`:
#ee.emit("TestEvent", sArgsRef)
ee.emit("TestEvent", sArgsRef[])