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a4e6b242d5
* asyncjs: add then * improve tests, changelog, API * fix cryptic windows error: The parameter is incorrect * address comments
23 lines
535 B
Nim
23 lines
535 B
Nim
discard """
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exitCode: 1
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outputsub: "Error: unhandled exception: foobar: 13"
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"""
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# note: this needs `--unhandled-rejections=strict`, see D20210217T215950
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import std/asyncjs
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from std/sugar import `=>`
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proc fn(n: int): Future[int] {.async.} =
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if n >= 7: raise newException(ValueError, "foobar: " & $n)
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else: result = n
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proc main() {.async.} =
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let x1 = await fn(6)
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doAssert x1 == 6
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await fn(7).catch((a: Error) => (discard))
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let x3 = await fn(13)
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doAssert false # shouldn't go here, should fail before
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discard main()
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