mutating func receiveBuffer()

in Sources/NIOSOCKS/State/ClientStateMachine.swift [65:85]

• 21 lines of code
• 5 McCabe index (conditional complexity)

    mutating func receiveBuffer(_ buffer: inout ByteBuffer) throws -> ClientAction {
        do {
            switch self.state {
            case .waitingForAuthenticationMethod(let greeting):
                guard let action = try self.handleSelectedAuthenticationMethod(&buffer, greeting: greeting) else {
                    return .waitForMoreData
                }
                return action
            case .waitingForServerResponse(let request):
                guard let action = try self.handleServerResponse(&buffer, request: request) else {
                    return .waitForMoreData
                }
                return action
            case .active, .error, .inactive, .waitingForClientGreeting, .waitingForClientRequest:
                throw SOCKSError.UnexpectedRead()
            }
        } catch {
            self.state = .error
            throw error
        }
    }