func transitionToNextPhase()

in Sources/Instrumentation/WKWebView/BodyCache/StreamingMultipartFormData.swift [513:538]

• 25 lines of code
• 6 McCabe index (conditional complexity)

    func transitionToNextPhase() -> Bool {
        if !Thread.current.isMainThread {
            let _ = DispatchQueue.main.sync {
                self.transitionToNextPhase()
            }
            return true
        }

        switch phase {
        case .EncapsulationBoundaryPhase:
            phase = .HeaderPhase
        case .HeaderPhase:
            self.inputStream?.schedule(in: RunLoop.current, forMode: RunLoop.Mode.common)
            self.inputStream?.open()
            phase = .BodyPhase
        case .BodyPhase:
            self.inputStream?.close()
            phase = .FinalBoundaryPhase
        case .FinalBoundaryPhase:
            fallthrough
        default:
            phase = .EncapsulationBoundaryPhase
        }
        self.phaseReadOffset = 0
        return true
    }