use std::error::Error;
use std::fmt::Display;
use uucore::display::Quotable;
use uucore::error::UError;
use crate::numberparse::ParseNumberError;
#[derive(Debug)]
pub enum SeqError {
ParseError(String, ParseNumberError),
ZeroIncrement(String),
NoArguments,
}
impl UError for SeqError {
fn code(&self) -> i32 {
1
}
fn usage(&self) -> bool {
true
}
}
impl Error for SeqError {}
impl Display for SeqError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::ParseError(s, e) => {
let error_type = match e {
ParseNumberError::Float => "floating point",
ParseNumberError::Nan => "'not-a-number'",
ParseNumberError::Hex => "hexadecimal",
};
write!(f, "invalid {error_type} argument: {}", s.quote())
}
Self::ZeroIncrement(s) => write!(f, "invalid Zero increment value: {}", s.quote()),
Self::NoArguments => write!(f, "missing operand"),
}
}
}