seqgen 0.3.3

Sequence generation library
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

//! This module defines errors for sequence part

use std::{
    error::Error,
    fmt::{Debug, Display},
};

/// Range error happens when creating bad ranges.
/// Example of this error could be trying to get 
/// a range where its end is less then its start.
pub enum RangeError {
    /// Represents an invalid range (start of range greater than its end).
    InvalidRange {
        /// Start of the range.
        start: usize,
        /// End of the range.
        end: usize,
    },
    /// Requested range is dead.
    DeadRange,
}

impl Debug for RangeError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            RangeError::InvalidRange { start, end } => f
                .debug_struct("InvalidRange")
                .field("start", start)
                .field("end", end)
                .finish(),
            RangeError::DeadRange => f.debug_struct("DeadRange").finish(),
        }
    }
}

impl Display for RangeError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            RangeError::InvalidRange { start, end } => {
                write!(f, "Range start ({start}) is greater than its end ({end}).")
            }
            RangeError::DeadRange => write!(f, "Requested range is dead.",),
        }
    }
}

impl Error for RangeError {}