mutating func get24UInt()

in Sources/NIOExtras/LengthFieldBasedFrameDecoder.swift [19:38]

• 20 lines of code
• 3 McCabe index (conditional complexity)

    mutating func get24UInt(
        at index: Int,
        endianness: Endianness = .big
    ) -> UInt32? {
        let mostSignificant: UInt16
        let leastSignificant: UInt8
        switch endianness {
        case .big:
            guard let uint16 = self.getInteger(at: index, endianness: .big, as: UInt16.self),
                  let uint8 = self.getInteger(at: index + 2, endianness: .big, as: UInt8.self) else { return nil }
            mostSignificant = uint16
            leastSignificant = uint8
        case .little:
            guard let uint8 = self.getInteger(at: index, endianness: .little, as: UInt8.self),
                  let uint16 = self.getInteger(at: index + 1, endianness: .little, as: UInt16.self) else { return nil }
            mostSignificant = uint16
            leastSignificant = uint8
        }
        return (UInt32(mostSignificant) << 8) &+ UInt32(leastSignificant)
    }