pub enum ELFCLASS {
    // invalid class
    CLASSNone,
    // 32bit objects
    CLASS32,
    // 64bit objects
    CLASS64,
    CLASSNUM,

    // for architecture-specific-value
    ANY(u8),
}

impl ELFCLASS {
    pub const INDEX: usize = 4;
    pub fn to_identifier(&self) -> u8 {
        match self {
            Self::CLASSNone => 0,
            Self::CLASS32 => 1,
            Self::CLASS64 => 2,
            Self::CLASSNUM => 3,
            Self::ANY(b) => *b,
        }
    }
}

impl From<u8> for ELFCLASS {
    fn from(byte: u8) -> Self {
        match byte {
            0 => Self::CLASSNone,
            1 => Self::CLASS32,
            2 => Self::CLASS64,
            3 => Self::CLASSNUM,
            _ => Self::ANY(byte),
        }
    }
}