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use std::{error, fmt, str::FromStr};
#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
pub enum Type {
Deletion,
Insertion,
Duplication,
Inversion,
CopyNumberVariation,
Breakend,
}
impl AsRef<str> for Type {
fn as_ref(&self) -> &str {
match self {
Self::Deletion => "DEL",
Self::Insertion => "INS",
Self::Duplication => "DUP",
Self::Inversion => "INV",
Self::CopyNumberVariation => "CNV",
Self::Breakend => "BND",
}
}
}
impl fmt::Display for Type {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(self.as_ref())
}
}
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum ParseError {
Empty,
Invalid,
}
impl error::Error for ParseError {}
impl fmt::Display for ParseError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::Empty => f.write_str("empty input"),
Self::Invalid => f.write_str("invalid input"),
}
}
}
impl FromStr for Type {
type Err = ParseError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"" => Err(ParseError::Empty),
"DEL" => Ok(Self::Deletion),
"INS" => Ok(Self::Insertion),
"DUP" => Ok(Self::Duplication),
"INV" => Ok(Self::Inversion),
"CNV" => Ok(Self::CopyNumberVariation),
"BND" => Ok(Self::Breakend),
_ => Err(ParseError::Invalid),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_fmt() {
assert_eq!(Type::Deletion.to_string(), "DEL");
assert_eq!(Type::Insertion.to_string(), "INS");
assert_eq!(Type::Duplication.to_string(), "DUP");
assert_eq!(Type::Inversion.to_string(), "INV");
assert_eq!(Type::CopyNumberVariation.to_string(), "CNV");
assert_eq!(Type::Breakend.to_string(), "BND");
}
#[test]
fn test_from_str() {
assert_eq!("DEL".parse(), Ok(Type::Deletion));
assert_eq!("INS".parse(), Ok(Type::Insertion));
assert_eq!("DUP".parse(), Ok(Type::Duplication));
assert_eq!("INV".parse(), Ok(Type::Inversion));
assert_eq!("CNV".parse(), Ok(Type::CopyNumberVariation));
assert_eq!("BND".parse(), Ok(Type::Breakend));
assert_eq!("".parse::<Type>(), Err(ParseError::Empty));
assert_eq!("NDL".parse::<Type>(), Err(ParseError::Invalid));
}
}