File: tasyncintemplate.nim

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discard """
  output: '''
42
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43
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'''
"""

# xxx move to tests/async/tasyncintemplate.nim
import asyncdispatch

block: # bug #16159
  template foo() =
    proc temp(): Future[int] {.async.} = return 42
    proc tempVoid(): Future[void] {.async.} = echo await temp()
  foo()
  waitFor tempVoid()

block: # aliasing `void`
  template foo() =
    type Foo = void
    proc temp(): Future[int] {.async.} = return 43
    proc tempVoid(): Future[Foo] {.async.} = echo await temp()
    proc tempVoid2() {.async.} = echo await temp()
  foo()
  waitFor tempVoid()
  waitFor tempVoid2()

block: # sanity check
  template foo() =
    proc bad(): int {.async.} = discard
  doAssert not compiles(bad())

block: # bug #16786
  block:
    proc main(a: int|string)=
      proc bar(b: int|string) = echo b
      bar(a)
    main(1)

  block:
    proc main(a: int) : Future[void] {.async.} =
      proc bar(b: int): Future[void] {.async.} = echo b
      await bar(a)
    waitFor main(2)

  block:
    proc main(a: int) : Future[void] {.async.} =
      proc bar(b: int | string): Future[void] {.async.} = echo b
      await bar(a)
    waitFor main(3)

  block:
    # bug
    proc main(a: int|string) =
      proc bar(b: int): Future[void] {.async.} = echo b
      waitFor bar(a)
    main(4)