inno/header/
auto_bool.rs

1use std::io;
2
3use zerocopy::{Immutable, KnownLayout, TryFromBytes, ValidityError, try_transmute};
4
5use super::HeaderFlags;
6
7#[derive(Clone, Copy, Debug, Default, Eq, PartialEq, Immutable, KnownLayout, TryFromBytes)]
8#[repr(u8)]
9pub enum AutoBool {
10    #[default]
11    Auto = 0,
12    No = 1,
13    Yes = 2,
14}
15
16impl AutoBool {
17    pub fn try_read_from_io<R>(mut src: R) -> io::Result<Self>
18    where
19        Self: Sized,
20        R: io::Read,
21    {
22        let mut buf = [0; size_of::<Self>()];
23        src.read_exact(&mut buf)?;
24        Self::try_read_from_bytes(&buf)
25            .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err.to_string()))
26    }
27
28    #[must_use]
29    pub const fn from_header_flags(flags: &HeaderFlags, flag: HeaderFlags) -> Self {
30        if flags.contains(flag) {
31            Self::Yes
32        } else {
33            Self::No
34        }
35    }
36
37    #[must_use]
38    pub const fn as_str(&self) -> &'static str {
39        match self {
40            Self::Auto => "Auto",
41            Self::No => "No",
42            Self::Yes => "Yes",
43        }
44    }
45}
46
47impl From<bool> for AutoBool {
48    fn from(value: bool) -> Self {
49        if value { Self::Yes } else { Self::No }
50    }
51}
52
53impl TryFrom<u8> for AutoBool {
54    type Error = ValidityError<u8, Self>;
55
56    fn try_from(value: u8) -> Result<Self, Self::Error> {
57        try_transmute!(value)
58    }
59}
inno/header/auto_bool.rs

inno/header/
auto_bool.rs
