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2008 :: nested iterator

• geezer9 (orginal) [2016-02-04T16:27:40+01:00] view original

  Since I need to do something similar I found this issue #1725

  https://github.com/nim-lang/Nim/issues/1725

  which is marked closed.

  However, when I try compiling that same code I get:

    Hint: system [Processing]
    Hint: nestiter [Processing]
    Error: internal error: (filename: compiler/lambdalifting.nim, line: 196)
    No stack traceback available
    To create a stacktrace, rerun compilation with ./koch temp c <file>
  Run

  Here is the code (named nestiter.nim):

   factory(): int {.closure.} =
     iterator bar(): int {.closure.} =
        yield 0
        yield 1
        yield 2
     for x in bar(): yield x
  
  for x in factory():
     echo x
  Run

  What am I failing to do?

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• def (orginal) [2016-02-04T16:39:25+01:00] view original

  You need to use the most recent devel branch of the Nim compiler, see these instructions: https://github.com/nim-lang/nim#compiling

  Edit: Just checked, it also works with the 0.13.0 release from the website. So you could use that as well. I guess you're on an older version of Nim.

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