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7433 :: Problem with compile-time `len` and variable

• drkameleon (orginal) [2021-01-26T09:05:18+01:00] view original

  I have a template with an untyped variable (which is actually an array of tuples - to-be Table):

  
  template doSth(v: untyped) =
       static:
            echo v.len  # this works fine
       
       let z = v.len # this complains that it "cannot evaluate at compile time"
  Run

  How is that possible? What am I missing?

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• mratsim (orginal) [2021-01-26T10:57:19+01:00] view original

  What about?

  template doSth(v: untyped) =
       static:
            echo v.len  # this works fine
       
       let z = static(v.len)
  Run

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• drkameleon (orginal) [2021-01-26T14:24:02+01:00] view original

  Thanks a lot for the input.

  I did change it to const after all.

  I tried to make a very minimal example but was not able to re-produce it, so I guess it mostly had to do with my overkill with the templates (I'm doing my best to fix it, right now) :)

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