Macro location 

macro_rules! location {
    () => { ... };
}

Captures the current source file and line number as error context.

This macro creates an ErrorContext::location using the file!() and line!() built-in macros, providing precise source location information for debugging.

Examples

use error_rail::{location, ComposableError};

let err = ComposableError::<&str>::new("io error")
    .with_context(location!());