Enum SnapshotError 

pub enum SnapshotError {
    FrameSize {
        got: usize,
        expected: usize,
    },
    Io(Error),
    Decode(ImageError),
    Dimensions {
        snapshot: (u32, u32),
        frame: (u32, u32),
    },
    Score(Ssimulacra2Error),
}

Available on crate feature snapshot only.

What went wrong storing or comparing a snapshot.

The paths and scores a caller reports come from here rather than from a panic, so a tool can turn a mismatch into its own exit code.

Variants

FrameSize

The frame’s bytes do not describe width x height RGBA pixels.

Fields

got: usize

Bytes the frame holds.

expected: usize

Bytes the dimensions require.

Io(Error)

The snapshot file could not be read or written.

Decode(ImageError)

The snapshot could not be decoded as WebP.

Dimensions

The snapshot’s dimensions differ from the frame’s.

Fields

snapshot: (u32, u32)

The snapshot’s dimensions.

frame: (u32, u32)

The frame’s dimensions.

Score(Ssimulacra2Error)

The two images could not be scored.

Trait Implementations

impl Debug for SnapshotError

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

Formats the value using the given formatter.

impl Display for SnapshotError

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

Formats the value using the given formatter.

impl Error for SnapshotError

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<Error> for SnapshotError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<ImageError> for SnapshotError

fn from(source: ImageError) -> Self

Converts to this type from the input type.

impl From<Ssimulacra2Error> for SnapshotError

fn from(source: Ssimulacra2Error) -> Self

Converts to this type from the input type.