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8583 :: Error: type mismatch: got <type string> / expected <string> but got <type string> (fidget)

• IvanS (orginal) [2021-11-02T15:17:03+01:00] view original

  I can't figure this out... When I pass a string that is in an object type to a function (in fidget) I get this error:

  Error: type mismatch: got <type string>

  I tried this on the playground, and got two times 'string' as result :

  import typetraits
  
  var myFolder: string
  type
    Configuration* = object
      myFolder*: string
  
  echo myFolder.type.name
  echo Configuration.myFolder.type.name
  Run

  But in my code all goes fine when I pass myFolder, but get the compiler error when I pass Configuration.myFolder while both are declared as string

  C:\Users\Ivan\ReGUI_03a.nim(721, 9) template/generic instantiation of `group` from here
  C:\Users\Ivan\ReGUI_03a.nim(723, 10) template/generic instantiation of `text` from here
  C:\Users\Ivan\ReGUI_03a.nim(728, 15) template/generic instantiation of `binding` from here
  C:\Users\Ivan\.nimble\pkgs\fidget-0.7.8\fidget.nim(445, 16) Error: type mismatch: got <type string>
  but expected one of:
  proc characters(text: string)
   first type mismatch at position: 1
   required type for text: string
   but expression 'Configuration.myFolder' is of type: type string
  
  expression: characters Configuration.myFolder

  The offending code snippet :

  proc guiSettings() =
    
    group "input":
      box 260, 15, 500, 30
      text "text":
        box 9, 8, 492, 25
        fill "#46607e"
        strokeWeight 1
        font "IBM Plex Sans", 12, 200, 0, hLeft, vCenter
        binding Configuration.myFolder
  #      binding myFolder
      text "textPlaceholder":
        box 9, 8, 492, 25
        fill "#46607e", 0.5
        strokeWeight 1
        font "IBM Plex Sans", 12, 200, 0, hLeft, vCenter
        if folder_reentry == "":
           characters "Path to ReEntry data folder"
      rectangle "bg":
        box 0, 0, 500, 30
        stroke "#72bdd0"
        cornerRadius 5
        strokeWeight 1
    group "label":
      box 150, 15, 100, 30
      text "Text field:":
        box 0, 0, 100, 30
        fill "#46607e"
        strokeWeight 1
        font "IBM Plex Sans", 14, 200, 0, hLeft, vCenter
        characters "ReEntry folder:"
  Run

  The "binding" in fidget is a template which uses the proc characters :

  template binding*(stringVariable: untyped) =
    ## Makes the current object text-editable and binds it to the stringVariable.
    current.bindingSet = true
    selectable true
    editableText true
    if not current.hasKeyboardFocus():
      characters stringVariable
    if not defined(js):
      onClick:
        keyboard.focus(current)
      onClickOutside:
        keyboard.unFocus(current)
    onInput:
      if stringVariable != keyboard.input:
        stringVariable = keyboard.input
  Run

  Is it the 'untyped' which causes this issue. Anyway, how do I resolve this ?

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• PMunch (orginal) [2021-11-02T15:27:10+01:00] view original

  You problem is that you pass the field myFolder of the Configuration object definition to the binding template. This is why it says type: type string because the field has the type of a type. What you probably need to do it create a global variable with the Configuration type and then pass that to the binding template.

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• IvanS (orginal) [2021-11-02T17:49:07+01:00] view original

  Yeah, of course... makes me feel a bit stupid I used the declaration instead of a variable

  type
    Configuration* = object
      myFolder*: string
  var
    myFolder: string
    config: Configuration
  
  ...
  ...
   binding config.myFolder
  Run

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• treeform (orginal) [2021-11-02T20:01:54+01:00] view original

  I am glad you figured it out! That is the correct solution.

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