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6095 :: Forward declaration of object name

• Lachu (orginal) [2020-03-21T13:15:53+01:00] view original

  I need to forward declare of object name. I use c2nim and it generates code similar to below:

  
     #First file
     connection {.bycopy.} = object
     #New line
     #Second file
      connection* {.bycopy.} = object
        id*: cint
        sock*: cint
  Run

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• leorize (orginal) [2020-03-21T16:17:19+01:00] view original

  That's not possible in Nim, instead just import the second file to get the object definition.

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• doofenstein (orginal) [2020-03-21T21:09:03+01:00] view original

  incomplete forward definitions in C are almost exclusively used either to hide internal structures or for recursive types. The former is done with exported/unexported fields, the latter just works in Nim, as long as the types are declared in the same type section, so there's no need for them in Nim.

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