Enum Error 

#[non_exhaustive]
pub enum Error {
    ShapeMismatch {
        op: &'static str,
        lhs: Vec<usize>,
        rhs: Vec<usize>,
    },
    DTypeMismatch {
        op: &'static str,
        lhs: DType,
        rhs: DType,
    },
    SizeMismatch {
        expected: usize,
        actual: usize,
    },
    UnsupportedDType {
        op: &'static str,
        dtype: DType,
    },
    OutOfMemory(usize),
    UnsupportedDevice(Device),
    InvalidArgument(String),
}

Why an operation failed.

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.

ShapeMismatch

Operand shapes are incompatible.

Fields

op: &'static str

The operation that rejected the shapes.

lhs: Vec<usize>

Shape of the left operand.

rhs: Vec<usize>

Shape of the right operand.

DTypeMismatch

Operand element types are incompatible.

Fields

op: &'static str

The operation that rejected the types.

lhs: DType

Element type of the left operand (or of the array).

rhs: DType

Element type of the right operand (or the requested type).

SizeMismatch

The number of host values does not match the shape.

Fields

expected: usize

Element count implied by the shape.

actual: usize

Number of values provided.

UnsupportedDType

The operation does not support this element type.

Fields

op: &'static str

The operation that rejected the type.

dtype: DType

The unsupported element type.

OutOfMemory(usize)

Memory for this many bytes could not be allocated (or exceeds the memory limit).

UnsupportedDevice(Device)

The device has no backend yet.

InvalidArgument(String)

An argument is invalid for another reason.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Self

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Eq for Error

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 PartialEq for Error

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Error