bp3d_debug/logger/
level.rs

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28
29use std::fmt::{Display, Formatter};
30
31/// An enum representing the available verbosity levels for a message.
32#[repr(u8)]
33#[derive(Clone, PartialEq, Copy, Ord, PartialOrd, Eq, Debug, Hash)]
34pub enum Level {
35    /// The "trace" level.
36    ///
37    /// Designates very low priority, often extremely verbose, information.
38    Trace = 1,
39
40    /// The "debug" level.
41    ///
42    /// Designates lower priority information.
43    Debug = 2,
44
45    /// The "info" level.
46    ///
47    /// Designates useful information.
48    Info = 3,
49
50    /// The "warn" level.
51    ///
52    /// Designates hazardous situations.
53    Warn = 4,
54
55    /// The "error" level.
56    ///
57    /// Designates very serious errors.
58    // This way these line up with the discriminants for LevelFilter below
59    // This works because Rust treats field-less enums the same way as C does:
60    // https://doc.rust-lang.org/reference/items/enumerations.html#custom-discriminant-values-for-field-less-enumerations
61    Error = 5,
62}
63
64static LOG_LEVEL_NAMES: [&str; 6] = ["OFF", "TRACE", "DEBUG", "INFO", "WARNING", "ERROR"];
65
66impl Level {
67    /// Returns the string representation of the `Level`.
68    ///
69    /// This returns the same string as the `fmt::Display` implementation.
70    pub fn as_str(&self) -> &'static str {
71        LOG_LEVEL_NAMES[*self as usize]
72    }
73}
74
75impl Display for Level {
76    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
77        f.write_str(self.as_str())
78    }
79}