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11486 :: Can’t wrap my head around this TypeError

• Nlits (orginal) [2024-04-24T22:40:54+02:00] view original

  I get this type error from my code (the code with the error is above the error):

  Info: Using the environment variable: NIMBLE_DIR='/home/runner/libmtg/nimble-env'
  Hint: used config file '/home/runner/.choosenim/toolchains/nim-2.0.4/config/nim.cfg' [Conf]
  Hint: used config file '/home/runner/.choosenim/toolchains/nim-2.0.4/config/config.nims' [Conf]
  Hint: used config file '/home/runner/libmtg/tests/config.nims' [Conf]
  Hint: used config file 'tests/cardbank.nims' [Conf]
  ..........................................................................................................................................................
  /home/runner/libmtg/src/libmtg/cards.nim(60, 22) Warning: imported and not used: 'dynlib' [UnusedImport]
  ......
  
  proc islandHandle_553648131() {.cdecl, exportc, dynlib.} =
    echo "Event"
  
  const
    islandHandle = "islandHandle_553648131"
  
  const
    cards`gensym3: array[0 .. 2, CardObject] = [(card "Island" do:
      cost = []
      typeline = [Basic, Land, {Island}]
      text = "({T}: Add {U}.)"
      imageUrl = "https://cards.scryfall.io/normal/front/a/c/acd6be3f-745c-41ad-95c9-1db66ba56be2.jpg?1712356421"
      expansion = "Outlaws of Thunder Junction"
      rarity = "common"
      collectorNumber = 279
      eventHandle = islandHandle)[], (scryfallCard "Forest",
        "baf8a774-65f3-431e-b084-328ff1000895" do:(discard ))[], (scryfallCard
        "Aegis Turtle", "7003ebae-5d82-4360-ae63-0e51c37977ed" do:(discard ))[]] # Error line
  proc load(): Table[string, CardObject] {.exportc, cdecl, dynlib.} =
    for c`gensym3 in cards`gensym3:
      result[c`gensym3.name] = c`gensym3
  
  Card(name: "Island", cost: @[], typeline: newTypeLine({SuperType.Basic},
      {MainType.Land}, {SubType.Island}), text: "({T}: Add {U}.)", imageUrl: "https://cards.scryfall.io/normal/front/a/c/acd6be3f-745c-41ad-95c9-1db66ba56be2.jpg?1712356421",
       expansion: "Outlaws of Thunder Junction", rarity: "common",
       collectorNumber: 279, eventHandle: islandHandle)
  Card(name: "Forest", imageUrl: "https://cards.scryfall.io/normal/front/b/a/baf8a774-65f3-431e-b084-328ff1000895.jpg?1712356407",
       text: "({T}: Add {G}.)", expansion: "Outlaws of Thunder Junction",
       collectorNumber: 276, rarity: "common", cost: @[], typeline: newTypeLine(
      {SuperType.Basic}, {MainType.Land}, {SubType.Forest}), power: -1,
       toughness: -1)
  Card(name: "Aegis Turtle", imageUrl: "https://cards.scryfall.io/normal/front/7/0/7003ebae-5d82-4360-ae63-0e51c37977ed.jpg?1600697500",
       text: "", expansion: "Jumpstart", collectorNumber: 138, rarity: "common",
       cost: @[ManaCostType.Blue], typeline: newTypeLine(
      {SuperType.SuperTypeNone}, {MainType.Creature}, {SubType.Turtle}), power: 0,
       toughness: 5)
  /home/runner/libmtg/tests/cardbank.nim(8, 1) template/generic instantiation of `cardSet` from here
  /home/runner/libmtg/src/libmtg/cardgen.nim(22, 11) Error: invalid type: 'CardSet' in this context: 'array[0..2, CardObject]' for const
  stack trace: (most recent call last)
  /tmp/nimblecache-946033505/nimscriptapi_2207287390.nim(222, 29)
  /home/runner/libmtg/libmtg.nimble(18, 3) testBefore
  /home/runner/.choosenim/toolchains/nim-2.0.4/lib/system/nimscript.nim(265, 7) exec
  /home/runner/.choosenim/toolchains/nim-2.0.4/lib/system/nimscript.nim(265, 7) Error: unhandled exception: FAILED: nim c tests/cardbank [OSError]
         Tip: 2 messages have been suppressed, use --verbose to show them.
  nimscriptwrapper.nim(160) execScript
      
      Error:  Exception raised during nimble script execution
  Run

  The error is Error: invalid type: 'CardSet' in this context: 'array[0..2, CardObject]' for const stack trace: (most recent call last). I already checked and nim gives a different error if the type of the objects being passed to the array is wrong, and that they were all CardObjects. All other errors I could fine relating to Invalid type in context were all generic errors, which none of my types have. Why is this error popping up, and how do I fix it?

  Keep in mind this section was working before, but I added the card set type to a file that this section imports, and then this error appeared.

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• PMunch (orginal) [2024-04-25T08:40:19+02:00] view original

  What is the CardSet type defined as?

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• Nlits (orginal) [2024-04-25T16:17:03+02:00] view original

  CardSet* = ref object
      cards*: Table[string, Card]
      # legalityBinding: set[]
      sourcePath: string # Local source path
      
      # Meta (optional)
      webSource: string # Web download url
      name: string # Can be ""
  Run

  ^^^ Is the definition.

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• Nlits (orginal) [2024-04-25T16:28:24+02:00] view original

  And the card types:

  CardObject* = object
      source: Cardset
      
      name*: string
      text*: string
      imageUrl*: string
      expansion*: string
      rarity*: string
      collectorNumber*: int
      cost*: seq[ManaCostType] # empty is land
      typeLine*: TypeLine
      
      power*: int = -1 # -1: None -2: *
      toughness*: int = -1 # -1: None -2: *
      
      eventHandle*: string
      eventHandleProc: proc ()
      statelessEventHandle*: string
      statelessEventHandleProc*: proc ()
      # triggers*: set[uint8] # What events to pass
    
    Card* = ref CardObject
  Run

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• 4n0n4me (orginal) [2024-04-25T17:28:28+02:00] view original

  I think maybe ref types can't be evaluated at compile time, so they can't be const s.

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• Nlits (orginal) [2024-04-25T18:05:48+02:00] view original

  Yep, I think you’re right. Changing source attr to a path string worked. I might just change it to int per later to signify that the ptr need not be resolved compile time… We will see.

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