Enum Error 

#[non_exhaustive]
pub enum Error {
    InvalidDimensions {
        width: u32,
        height: u32,
    },
    BufferSizeMismatch {
        expected: usize,
        actual: usize,
    },
    InvalidQuality(u8),
    InvalidQuantTableIndex(usize),
    InvalidComponentIndex(usize),
    InvalidHuffmanTableIndex(usize),
    InvalidSamplingFactor {
        h: u8,
        v: u8,
    },
    InvalidScanSpec {
        reason: &'static str,
    },
    InvalidHuffmanTable,
    HuffmanCodeLengthOverflow,
    UnsupportedColorSpace,
    UnsupportedFeature(&'static str),
    InternalError(&'static str),
    IoError(String),
    AllocationFailed,
}

Error type for mozjpeg operations.

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.

InvalidDimensions

Invalid image dimensions (zero width or height)

Fields

width: u32

Image width

height: u32

Image height

BufferSizeMismatch

Image buffer size doesn’t match dimensions

Fields

expected: usize

Expected buffer size in bytes

actual: usize

Actual buffer size in bytes

InvalidQuality(u8)

Invalid quality value (must be 1-100)

InvalidQuantTableIndex(usize)

Invalid quantization table index

InvalidComponentIndex(usize)

Invalid component index

InvalidHuffmanTableIndex(usize)

Invalid Huffman table index

InvalidSamplingFactor

Invalid sampling factor

Fields

h: u8

Horizontal sampling factor

v: u8

Vertical sampling factor

InvalidScanSpec

Invalid scan specification

Fields

reason: &'static str

Reason for the invalid specification

InvalidHuffmanTable

Invalid Huffman table structure

HuffmanCodeLengthOverflow

Huffman code length overflow (exceeds max allowed)

UnsupportedColorSpace

Unsupported color space

UnsupportedFeature(&'static str)

Unsupported feature

InternalError(&'static str)

Internal encoder error

IoError(String)

I/O error

AllocationFailed

Memory allocation failed

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<(), Error>

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn from(e: Error) -> Error

Converts to this type from the input type.

impl From<TryReserveError> for Error

fn from(_: TryReserveError) -> Error

Converts to this type from the input type.

impl PartialEq for Error

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Error

impl StructuralPartialEq for Error