// Type:
public enum Filelist: Hashable {
  case input(path: VirtualPath, type: FileType)
  case sourceInput(path: VirtualPath)
  case inputAndSourceInput(path: VirtualPath, type: FileType)
  case output(path: VirtualPath, type: FileType)
  case supplementaryOutput(path: VirtualPath)

  var path: VirtualPath {
    switch self {
    case .input(let path, _),
         .sourceInput(let path),
         .inputAndSourceInput(let path, _),
         .output(let path, _),
         .supplementaryOutput(let path):
      return path
    }
  }
}


// Input:
switch self {

}


/*
Diagnostic:
Switch must be exhaustive
Do you want to add missing cases?
*/


// Output:
switch self {

case .input(path: let path, type: let type):
  <#code#>
case .sourceInput(path: let path):
  <#code#>
case .inputAndSourceInput(path: let path, type: let type):
  <#code#>
case .output(path: let path, type: let type):
  <#code#>
case .supplementaryOutput(path: let path):
  <#code#>
}


// Expected:
switch self {
case let .input(path, type):
  <#code#>
case let .sourceInput(path):
  <#code#>
case let .inputAndSourceInput(path, type):
  <#code#>
case let .output(path, type):
  <#code#>
case let .supplementaryOutput(path):
  <#code#>
}