Binary Operator Cannot be Applied to two SCNDebugOptions

Question

I am just trying to set two flags for the debug options. Why is this a problem in Swift 4

Same problem as in https://stackoverflow.com/questions/30761996/swift-2-0-binary-operator-cannot-be-applied-to-two-uiusernotificationtype and https://stackoverflow.com/questions/30867325/binary-operator-cannot-be-applied-to-two-uiviewautoresizing-operands (from the "Related" section). — Martin R, Jun 13 '17 at 05:18

score 9 · Answer 1 · answered Jun 13 '17 at 03:25

9

instead of doing "|", use a set:

sceneView.debugOptions = [ARSCNDebugOptions.showFeaturePoints,ARSCNDebugOptions.showWorldOrigin]

answered Jun 13 '17 at 03:25

Michael Dautermann

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score 0 · Answer 2 · answered Feb 26 '20 at 06:21

SCNDebugOptions confirm the protocol OptionSet, which confirm SetAlgebra protocol and SetAlgebra confirm ExpressibleByArrayLiteral protocol.

public struct SCNDebugOptions : OptionSet {...}
protocol OptionSet : RawRepresentable, SetAlgebra {...}
public protocol SetAlgebra : Equatable, ExpressibleByArrayLiteral {...}

That's why you can't use the pipe (|) sign for multiple arguments. instead, use an array.

sceneView.debugOptions = [.showFeaturePoints, .showWorldOrigin]

Binary Operator Cannot be Applied to two SCNDebugOptions

2 Answers2