Enum RenderError 

#[non_exhaustive]
pub enum RenderError {
    ImageSizeTooSmall,
    ImageSizeTooLarge,
    Io(Error),
    Image(ImageError),
}

Errors returned while rendering a QR Code symbol.

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.

ImageSizeTooSmall

The requested output is too small for an integer module scale and quiet zone.

ImageSizeTooLarge

The requested output dimensions overflow a supported image size.

Io(Error)

Available on crate feature std only.

An input or output operation failed.

Image(ImageError)

Available on crate feature image only.

PNG encoding failed.

Trait Implementations

impl Debug for RenderError

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

Formats the value using the given formatter.

impl Display for RenderError

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

Formats the value using the given formatter.

impl Error for RenderError

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 RenderError

Available on crate feature std only.

fn from(error: Error) -> Self

Converts to this type from the input type.

impl From<ImageError> for RenderError

Available on crate feature image only.

fn from(error: ImageError) -> Self

Converts to this type from the input type.