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discard """
output: '''
issue #11812
issue #10899
123
issue #11367
event consumed!
'''
"""
echo "issue #11812"
proc run(a: proc()) = a()
proc main() =
var test: int
run(proc() = test = 0)
run do:
test = 0
main()
echo "issue #10899"
proc foo(x: proc {.closure.}) =
x()
proc bar =
var x = 123
# foo proc = echo x #[ ok ]#
foo: echo x #[ SIGSEGV: Illegal storage access. (Attempt to read from nil?) ]#
bar()
echo "issue #11367"
type
EventCB = proc()
Emitter = object
cb: EventCB
Subscriber = object
discard
proc newEmitter(): Emitter =
result
proc on_event(self: var Emitter, cb: EventCB) =
self.cb = cb
proc emit(self: Emitter) =
self.cb()
proc newSubscriber(): Subscriber =
result
proc consume(self: Subscriber) =
echo "event consumed!"
proc main2() =
var emitter = newEmitter()
var subscriber = newSubscriber()
proc foo() =
subscriber.consume()
emitter.on_event() do ():
subscriber.consume()
# this works
# emitter.on_event(foo)
emitter.emit()
main2()
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