Macro tracerr::map_from_and_new

macro_rules! map_from_and_new {
    ($e : expr) => { ... };
}

Captures a new Frame in the invocation place and wraps the given error into a Traced wrapper containing this Frame with applying the required From conversion for the wrapped error. If the error represents a Traced already, then just applies From conversion and growths its Trace with the captured Frame.

Examples

use tracerr::Traced;

let err: Traced<u8> = tracerr::new!(8);
let err: Traced<u64> = tracerr::map_from_and_new!(err);