Enum ChessError 

#[non_exhaustive]
pub enum ChessError {
    DimensionMismatch {
        expected: usize,
        actual: usize,
    },
    Upscale(UpscaleError),
}

Errors returned by detection and heatmap entry points.

This type aggregates all failure modes reachable from the public API. The From implementation for UpscaleError lets callers propagate upscale failures with ?.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

DimensionMismatch

The supplied image slice length does not match width * height.

Fields

expected: usize

Expected length (width * height).

actual: usize

Actual slice length.

Upscale(UpscaleError)

An upscale configuration or execution error.

Trait Implementations

impl Debug for ChessError

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

Formats the value using the given formatter.

impl Display for ChessError

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

Formats the value using the given formatter.

impl Error for ChessError

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<UpscaleError> for ChessError

fn from(e: UpscaleError) -> Self

Converts to this type from the input type.