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}