[SoM] - error: ambiguous reference to member

[chamons]

public class Event <T> {

  public init () {}
}

public extension Event where T == Void {

  func emit () {
  }

  func emit (on target: AnyObject) {
  }

  func emit (on targets: [AnyObject]) {
  }
}

Error (Fatal): SwiftRepro-Event-Extension0.swift:7:5: error: ambiguous reference to member 'emit()'
    this.emit();
    ^~~~
SwiftRepro.Event<()>:2:17: note: found this candidate
    public func emit()
                ^
SwiftRepro.Event<()>:3:17: note: found this candidate
    public func emit(on target: Swift.AnyObject)
                ^
SwiftRepro.Event<()>:4:17: note: found this candidate
    public func emit(on targets: [Swift.AnyObject])
                ^
SwiftRepro-Event-Extension0.swift:11:5: error: ambiguous reference to member 'emit()'
    this.emit(on: on);
    ^~~~
SwiftRepro.Event<()>:2:17: note: found this candidate
    public func emit()
                ^
SwiftRepro.Event<()>:3:17: note: found this candidate
    public func emit(on target: Swift.AnyObject)
                ^
SwiftRepro.Event<()>:4:17: note: found this candidate
    public func emit(on targets: [Swift.AnyObject])
                ^
SwiftRepro-Event-Extension0.swift:15:5: error: ambiguous reference to member 'emit()'
    this.emit(on: on.pointee);
    ^~~~
SwiftRepro.Event<()>:2:17: note: found this candidate
    public func emit()
                ^
SwiftRepro.Event<()>:3:17: note: found this candidate
    public func emit(on target: Swift.AnyObject)
                ^
SwiftRepro.Event<()>:4:17: note: found this candidate
    public func emit(on targets: [Swift.AnyObject])
                ^
 (Exception)
Error (Fatal): Failed to wrap module SwiftRepro. (CompilerException)

[stephen-hawley]

Note to future Steve

When you're compiling an extension of this type, the important part is the where T == Void conformance, not the ambiguous member reference.

When wrapping this, the generic parameter should get bound to Void.

[chamons]

EmitterKit.framework