ListingDecodeError

use libtmux::Error;

// Reached through the one variant that carries it. Both accessors are
// optional because tmux does not always give enough to locate the row.
fn locate(failure: &Error) -> Option<(&'static str, Option<usize>)> {
    match failure {
        Error::DecodeListing { list_command, detail, .. } => {
            Some((*list_command, detail.row()))
        }
        _ => None,
    }
}

// The payload is metadata only: no tmux bytes are retained, so logging it
// cannot leak a pane's contents.
let other = libtmux::Server::builder()
    .socket_name("named")
    .socket_path("/tmp/libtmux-rs-dev/explicit")
    .build()
    .expect_err("two socket selectors");
assert_eq!(locate(&other), None);