cheetah_string/
error.rs

1use core::fmt;
2use core::str::Utf8Error;
3
4/// Errors that can occur during CheetahString operations
5#[derive(Debug, Clone, PartialEq, Eq)]
6pub enum Error {
7    /// UTF-8 validation failed
8    Utf8Error(Utf8Error),
9    /// Index out of bounds
10    IndexOutOfBounds { index: usize, len: usize },
11    /// Invalid character boundary
12    InvalidCharBoundary { index: usize },
13}
14
15impl fmt::Display for Error {
16    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
17        match self {
18            Error::Utf8Error(e) => write!(f, "UTF-8 error: {}", e),
19            Error::IndexOutOfBounds { index, len } => {
20                write!(f, "index {} out of bounds (len: {})", index, len)
21            }
22            Error::InvalidCharBoundary { index } => {
23                write!(f, "index {} is not a char boundary", index)
24            }
25        }
26    }
27}
28
29#[cfg(feature = "std")]
30impl std::error::Error for Error {
31    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
32        match self {
33            Error::Utf8Error(e) => Some(e),
34            _ => None,
35        }
36    }
37}
38
39impl From<Utf8Error> for Error {
40    fn from(e: Utf8Error) -> Self {
41        Error::Utf8Error(e)
42    }
43}
44
45/// Result type for CheetahString operations
46pub type Result<T> = core::result::Result<T, Error>;
cheetah_string/error.rs

cheetah_string/
error.rs
