Enum MattenNdarrayError 

#[non_exhaustive]
pub enum MattenNdarrayError {
    DynamicTensor,
    ZeroSizedAxis(Vec<usize>),
    NdarrayShape(ShapeError),
    Matten(MattenError),
}

Errors produced by the matten ↔ ndarray conversions.

#[non_exhaustive] so future variants are not a breaking change.

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.

DynamicTensor

A dynamic (Element) tensor was passed to a conversion. Convert it to a numeric tensor first with Tensor::try_numeric().

ZeroSizedAxis(Vec<usize>)

👎Deprecated:

from_arrayd accepts a zero-length axis since RFC-111; this variant is never constructed

Formerly returned when the input ndarray shape contained a zero-length axis. Core matten now accepts zero-sized dimensions (RFC-111), so from_arrayd no longer rejects one — this variant is never constructed. Kept, rather than removed, because the enum is #[non_exhaustive] but a removed variant still breaks anyone matching on it.

NdarrayShape(ShapeError)

ndarray could not construct the target array (e.g. a shape/length mismatch).

Matten(MattenError)

Core matten rejected the conversion (e.g. the rank exceeds MAX_NDIM).

Trait Implementations

impl Debug for MattenNdarrayError

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

Formats the value using the given formatter.

impl Display for MattenNdarrayError

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

Formats the value using the given formatter.

impl Error for MattenNdarrayError

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.