Enum Error 

pub enum Error {
    Utf8Error(Utf8Error),
    IndexOutOfBounds {
        index: usize,
        len: usize,
    },
    InvalidRange {
        start: usize,
        end: usize,
    },
    InvalidCharBoundary {
        index: usize,
    },
}

Compatibility error type for range operations and explicit conversions.

CheetahString::try_substring returns this type through the crate’s Result alias. UTF-8 text constructors return Utf8Error directly; Utf8Error can still be wrapped through From for source-compatible 3.1 error aggregation.

Variants

Utf8Error(Utf8Error)

UTF-8 validation failed.

IndexOutOfBounds

An index was beyond the string length.

Fields

index: usize

Requested byte index.

len: usize

String length in bytes.

InvalidRange

A range started after its end.

Fields

start: usize

Requested inclusive start index.

end: usize

Requested exclusive end index.

InvalidCharBoundary

An index did not lie on a UTF-8 character boundary.

Fields

index: usize

Requested byte index.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

Available on crate feature std only.

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Utf8Error> for Error

fn from(e: Utf8Error) -> Self

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Error