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  1. Swift
  2. SR-8515

Compiler should show error for ambiguous enum cases with implicit casting

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Medium
    • Resolution: Duplicate
    • Component/s: Compiler
    • Labels:
      None
    • Environment:

      Swift 4.1. Xcode 9.4.1 (9F2000)

      Description

      I've recently had trouble with UITableViewCellSelectionStyle. I have a function that accepts an optional UITableViewCellSelectionStyle. Optional has a "none" case, and "UITableViewCellSelectionStyle" too. This means that passing a .none is ambiguous (due to implicit casting to optional), as it could be interpreted as a nil value or a .some(.none). I think the best solution here would be to show an error if there is ambiguity.

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              • Assignee:
                Unassigned
                Reporter:
                buscarini José Manuel Sánchez
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                • Created:
                  Updated:
                  Resolved: