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1882 :: Error: internal error: expr(nkClosedSymChoice); unknown node kind

• catswhiskers (orginal) [2015-12-17T21:01:45+01:00] view original

  This is on manjaro (arch) linux using the community supplied package of the latest nim release, whilst compiling an x-windows app of my own. I've been building "agile" style. It has borked somewhere in

  while true :

  discard XNextEvent (A.disp.inst, A.xev.addr) case A.xev.theType

  of Expose :

  discard XDrawLine (A.disp.inst, A.win.id, agc,

  0.cint, 0.cint, 100.cint, 100.cint)

  discard XDrawString (A.disp.inst, A.win.id, agc,

  100.cint, 100.cint, "hello".cstring, 5.cint)

  of KeyPress :

  discard XDestroyWindow (A.disp.inst, A.win.id) discard XCloseDisplay (A.disp.inst) discard quit

  else :

  discard

  It goes on: No stack traceback available To create a stacktrace, rerun compilation with ./koch temp c <file>

  Naturally I haven't got one of those ie a ./koch

  I have only "/usr/share/nim/doc/koch.txt"

  Pointers/guidance please.

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• jboy (orginal) [2015-12-18T09:49:28+01:00] view original

  Hi @catswhiskers,

  It's difficult to diagnose your problem when we can only see a small section of the code (and this section of code doesn't seem to be formatted properly).

  When posting sections of code, you can use Markdown to format your code as a code-block.

  But it would be more helpful if we could see the complete code. Is your code on Github or Bitbucket? Alternately, perhaps you can post a link to a Github Gist?

  Best of all would be if you could distill this problem down to a small, self-contained section of code that triggers this internal error, then submit that as a Nim bug report so the Nim language devs can investigate it & fix it.

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• catswhiskers (orginal) [2015-12-18T17:47:35+01:00] view original

  Sorry about formatting. Don't know markdown. This was c&p from vi session in xterm. All properly laid out. (Otherwise it won't compile :) Edit the entry and it looks ok. So there's a disjoint between the edit screen and what is displayed after submition that is beyond my control. It ought to honour n and mostly it has.

  I thought that code was small. I've taken out everything in that block except the discard quit and it still happens. I'll try the bug report. Thanks

  UPDATE : Phew it was my error (naturally). I'd tried using quit without either () or "message". Compiler messages led me erroneously to code "discard quit" and that's when I got to this forum.

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• kirbyfan64sos (orginal) [2015-12-22T17:11:21+01:00] view original

  1. This isn't Markdown; it's rST.
  2. You need to format code blocks like this::

     echo 123
     # Code here!
     Run

  That generates:

  echo 123
  # Code here!
  Run

  Next to the "Submit" button on the forum is a link labeled "Syntax Cheatsheet"; you should definitely check it out!

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