ebyte_e32/parameters/
uart_parity.rs

1use crate::parameters::error::Error;
2
3#[cfg(feature = "value_enum")]
4use clap::ValueEnum;
5
6#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
7#[cfg_attr(test, derive(proptest_derive::Arbitrary))]
8#[cfg_attr(feature = "value_enum", derive(ValueEnum))]
9pub enum Parity {
10    #[default]
11    None,
12    Odd,
13    Even,
14}
15
16impl TryFrom<u8> for Parity {
17    type Error = Error;
18
19    fn try_from(value: u8) -> Result<Self, Self::Error> {
20        match value {
21            0 | 3 => Ok(Self::None),
22            1 => Ok(Self::Odd),
23            2 => Ok(Self::Even),
24            _ => Err(Error::InvalidUartParity { value }),
25        }
26    }
27}
28
29impl From<Parity> for u8 {
30    fn from(parity: Parity) -> Self {
31        match parity {
32            Parity::None => 0,
33            Parity::Odd => 1,
34            Parity::Even => 2,
35        }
36    }
37}
38
39#[cfg(feature = "value_enum")]
40#[cfg(test)]
41mod test {
42    use super::*;
43
44    #[test]
45    fn parses_parity() {
46        let none = Parity::from_str("None", true).unwrap();
47        assert_eq!(none, Parity::None);
48
49        let even = Parity::from_str("Even", true).unwrap();
50        assert_eq!(even, Parity::Even);
51    }
52}
ebyte_e32/parameters/uart_parity.rs

ebyte_e32/parameters/
uart_parity.rs
