Crate unwrap_log

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Expand description

Non-panicking alternatives to Option and Result unwrapping, which log at warn level.

Example

use unwrap_log::{OptionExt, ResultExt};
use env_logger::Builder;
use log::LevelFilter::Warn;

Builder::new().filter_level(Warn).init();

let x: i32 = None.unwrap_or_default_log();
assert_eq!(x, 0);

let y: i32 = Err("oops").unwrap_or_default_log();
assert_eq!(y, 0);

Output:

[1970-01-01T00:00:00Z WARN  my_crate] src\main.rs:8:23 encountered `None`
[1970-01-01T00:00:00Z WARN  my_crate] src\main.rs:11:30 encountered `Err("oops")`

Traits

  • OptionExt
    Extension trait providing tracing alternatives to Option unwrap methods.
  • ResultExt
    Extension trait providing tracing alternatives to Result unwrap methods.
  • ResultExtNoDbg
    Like ResultExt for Result<T, E>, but doesn’t require E: Debug.