File: tasyncjs_bad.nim

package info (click to toggle)
nim 2.2.0-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 1,911,644 kB
  • sloc: sh: 24,603; ansic: 1,761; python: 1,492; makefile: 1,013; sql: 298; asm: 141; xml: 13
file content (22 lines) | stat: -rw-r--r-- 535 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
discard """
  exitCode: 1
 outputsub: "Error: unhandled exception: foobar: 13"
"""

# note: this needs `--unhandled-rejections=strict`, see D20210217T215950

import std/asyncjs
from std/sugar import `=>`

proc fn(n: int): Future[int] {.async.} =
  if n >= 7: raise newException(ValueError, "foobar: " & $n)
  else: result = n

proc main() {.async.} =
  let x1 = await fn(6)
  doAssert x1 == 6
  await fn(7).catch((a: Error) => (discard))
  let x3 = await fn(13)
  doAssert false # shouldn't go here, should fail before

discard main()