Enum ImageError 

#[non_exhaustive]
pub enum ImageError {
    NotAnImage,
    Format(u16),
    Corrupt,
    Invalid,
}

Why bytes could not be loaded as a language image.

Examples

use lang_forge::{ImageError, Language};

assert_eq!(Language::from_image(b"not an image").unwrap_err(), ImageError::NotAnImage);

let lang = Language::from_lsf("[language]\nname = \"x\"\n[rules]\nx = \"NUMBER\"\n")?;
let mut image = lang.to_image();
let last = image.len() - 1;
image[last] ^= 0xFF;
assert_eq!(Language::from_image(&image).unwrap_err(), ImageError::Corrupt);

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.

NotAnImage

The bytes do not start with the image header.

Format(u16)

The image is of a format this lang-forge does not read. Re-forge the sketch.

Corrupt

The image is truncated, or its body does not match its hash.

Invalid

The image’s hash matches, but its tables are not ones lang-forge builds: an index out of range, a malformed automaton, or invalid text. It was not written by this lang-forge.

Trait Implementations

impl Clone for ImageError

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ImageError

impl Debug for ImageError

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

Formats the value using the given formatter.

impl Display for ImageError

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

Formats the value using the given formatter.

impl Eq for ImageError

impl Error for ImageError

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 Hash for ImageError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ImageError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ImageError