blob: bab2d1a31b62870f811cbc658e60cc071ac790e9 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
discard """
output: "1\nmessa"
"""
import async
# bug #2377
proc test[T](v: T) {.async.} =
echo $v
asyncCheck test[int](1)
# More complex case involving typedesc and static params
type
SomeMsg = object
data: string
template msgId(M: type SomeMsg): int = 1
proc recvMsg(): Future[tuple[msgId: int, msgData: string]] {.async.} =
return (1, "message")
proc read(data: string, T: type SomeMsg, maxBytes: int): T =
result.data = data[0 ..< min(data.len, maxBytes)]
proc nextMsg*(MsgType: typedesc,
maxBytes: static[int]): Future[MsgType] {.async.} =
const wantedId = MsgType.msgId
while true:
var (nextMsgId, nextMsgData) = await recvMsg()
if nextMsgId == wantedId:
return nextMsgData.read(MsgType, maxBytes)
proc main {.async.} =
let msg = await nextMsg(SomeMsg, 5)
echo msg.data
asyncCheck main()
|