source_loc 0.99.0

utility for capturing source file location at compile time
Documentation 
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# source_loc

Utility for capturing source file location at compile time.
Much less overhead than `Backtrace`, but, of course you don't get a full
backtrace.

## Example

```rust
use source_loc::source_loc;

let loc = source_loc!();
assert_eq!(
    "src/lib.rs:6:11",
    &loc.to_string(),
);
```