errors.rs

1use std::error::Error;2use std::fmt;34/// The one error type of the crate.5#[derive(Debug)]6pub enum MrlyError {7    /// A value that broke a rule, carrying the message.8    Value(String),9}1011impl fmt::Display for MrlyError {12    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {13        match self {14            MrlyError::Value(message) => write!(f, "{message}"),15        }16    }17}1819impl Error for MrlyError {}2021/// The crate's result, erring with MrlyError.22pub type Result<T> = std::result::Result<T, MrlyError>;2324/// Wraps a message in an Err of the value variant.25pub fn value_error<T>(message: impl Into<String>) -> Result<T> {26    Err(MrlyError::Value(message.into()))27}