Adhoc Errors
A library for the construction of efficient single use static/dynamic error types per callsite.
[dependencies]
adhocerr = "0.1"
Examples
Creating an root cause error:
use adhocerr::err;
fn get_git_root(start: &Path) -> Result<PathBuf, impl Error + 'static> {
start
.ancestors()
.find(|a| a.join(".git").is_dir())
.map(Path::to_owned)
.ok_or(err!("Unable to find .git/ in parent directories"))
}
Wrapping another Error:
use adhocerr::wrap;
fn record_success() -> Result<(), impl Error + 'static> {
std::fs::write(".success", "true").map_err(wrap!("Failed to save results of script"))
}
License