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use core::fmt;
use serde::Deserialize;
pub type MLE<T> = Result<T, MLError>;
#[derive(Debug, Deserialize)]
pub struct MLError {
etype: ErrorType,
message: String,
}
#[derive(Debug, Deserialize)]
pub enum ErrorType {
ArgumentError,
ArgumentCountError,
ConfigError,
LibToml,
IoError,
}
impl std::error::Error for MLError {
fn description(&self) -> &str {
&self.message
}
}
impl fmt::Display for MLError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.etype {
ErrorType::ArgumentError => write!(f, "Wrong argument"),
ErrorType::ArgumentCountError => write!(f, "Too many/too few arguments"),
ErrorType::ConfigError => write!(f, "CONFIG"),
ErrorType::LibToml => write!(f, "TOML"),
ErrorType::IoError => write!(f, "IO")
}
}
}
impl From<toml::de::Error> for MLError {
fn from(error: toml::de::Error) -> Self {
Self { etype: ErrorType::LibToml, message: error.to_string() }
}
}
impl From<toml::ser::Error> for MLError {
fn from(error: toml::ser::Error) -> Self {
Self { etype: ErrorType::LibToml, message: error.to_string() }
}
}
impl From<std::io::Error> for MLError {
fn from(error: std::io::Error) -> Self {
Self { etype: ErrorType::IoError, message: error.to_string() }
}
}
impl MLError {
pub fn new(etype: ErrorType, message: &str) -> Self {
Self { etype, message: String::from(message) }
}
}
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