Function dotfiles_core::yaml_util::fold_hash_until_first_err

pub fn fold_hash_until_first_err<T, P, Processed, F>(
    yaml: &StrictYaml,
    init: Result<T, DotfilesError>,
    process_function: P,
    fold_function: F
) -> Result<T, DotfilesError>
where
    P: FnMut(String, &StrictYaml) -> Result<Processed, DotfilesError>,
    F: FnMut(T, Processed) -> Result<T, DotfilesError>,

Process each element of the hash with the process_function and then fold them all using into a single result using fold_function, for an initial value of init. Returns the first error that happens in either processing or folding.

Errors

• ErrorType::UnexpectedYamlTypeError if the yaml passed in is not a hash
• ErrorType::UnexpectedYamlTypeError if the hash contains keys that cannot be parsed as strings.
• Any errors from the fold_function or process function.