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1678 :: How to access table outside of the module?

• McDepp (orginal) [2015-10-01T18:07:07+02:00] view original

  Hi, How to access table outside of the module? I have some module and I want create dictionary storing an object and access outside of the module. I'm using Nim 0.11.3.

  
  # testmodule.nim
  import tables,hashes
  var gId: int
  type
    PNode* = ref TNode
    TNodeTable* = Table[PNode,PNode]
    TNode = object
      id* : int
      nodes* : TNodeTable
   
   proc hash(node: PNode): Hash =
    result = node.id.hash
  
  proc newNode* (): PNode =
    new(result)
    result.id = gId
    result.nodes = initTable[PNode, PNode]()
    inc gId
  
  Run

  
  import testmodule
  var node = newNode()
  echo "Count of nodes" & $node.nodes.len
  Run

  But I'm getting following error message:

  
  Error: type mismatch: got (TNodeTable)
  but expected one of:
  system.len(x: TOpenArray)
  system.len(x: string)
  system.len(x: seq[T])
  system.len(x: cstring)
  system.len(x: array[I, T])
  macros.len(n: NimNode)
  Run

  Can anyone help me?

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• andrea (orginal) [2015-10-01T18:26:42+02:00] view original

  Sure, you have to import tables as well, because you are using the len function that is defined there (and not in testmodule)

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• McDepp (orginal) [2015-10-01T18:30:37+02:00] view original

  Thanks. That does it!

  
  export tables
  Run

  Also working.

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