Enum image::error::ImageError
source · pub enum ImageError {
Decoding(DecodingError),
Encoding(EncodingError),
Parameter(ParameterError),
Limits(LimitError),
Unsupported(UnsupportedError),
IoError(Error),
}
Expand description
The generic error type for image operations.
This high level enum allows, by variant matching, a rough separation of concerns between
underlying IO, the caller, format specifications, and the image
implementation.
Variants§
Decoding(DecodingError)
An error was encountered while decoding.
This means that the input data did not conform to the specification of some image format, or that no format could be determined, or that it did not match format specific requirements set by the caller.
Encoding(EncodingError)
An error was encountered while encoding.
The input image can not be encoded with the chosen format, for example because the specification has no representation for its color space or because a necessary conversion is ambiguous. In some cases it might also happen that the dimensions can not be used with the format.
Parameter(ParameterError)
An error was encountered in input arguments.
This is a catch-all case for strictly internal operations such as scaling, conversions, etc. that involve no external format specifications.
Limits(LimitError)
Completing the operation would have required more resources than allowed.
Errors of this type are limits set by the user or environment, not inherent in a specific format or operation that was executed.
Unsupported(UnsupportedError)
An operation can not be completed by the chosen abstraction.
This means that it might be possible for the operation to succeed in general but
- it requires a disabled feature,
- the implementation does not yet exist, or
- no abstraction for a lower level could be found.
IoError(Error)
An error occurred while interacting with the environment.
Trait Implementations§
source§impl Debug for ImageError
impl Debug for ImageError
source§impl Display for ImageError
impl Display for ImageError
source§impl Error for ImageError
impl Error for ImageError
source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
1.0.0 · source§fn description(&self) -> &str
fn description(&self) -> &str
source§impl From<Error> for ImageError
impl From<Error> for ImageError
source§fn from(err: Error) -> ImageError
fn from(err: Error) -> ImageError
source§impl From<Error> for ImageError
impl From<Error> for ImageError
source§fn from(error: Error) -> ImageError
fn from(error: Error) -> ImageError
Auto Trait Implementations§
impl Freeze for ImageError
impl !RefUnwindSafe for ImageError
impl Send for ImageError
impl Sync for ImageError
impl Unpin for ImageError
impl !UnwindSafe for ImageError
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more