Enum GpuContextError 

#[non_exhaustive]
pub enum GpuContextError {
    LaneMismatch {
        actual: BackendKind,
        requested: &'static str,
    },
    MissingField(&'static str),
}

Failure modes for the typed GpuContext unpackers above.

Errors here are caller-fault (mismatched lane, missing optional field) — they don’t indicate device loss or runtime trouble.

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.

LaneMismatch

Caller asked for a per-lane accessor that doesn’t match the GpuContext variant the caller supplied (e.g. asking for cuda_context_and_stream on a Metal context).

Fields

actual: BackendKind

requested: &'static str

MissingField(&'static str)

The variant matched but an optional field (uuid, registry_id, …) was left None by the caller.

Trait Implementations

impl Clone for GpuContextError

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 GpuContextError

impl Debug for GpuContextError

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

Formats the value using the given formatter.

impl Display for GpuContextError

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

Formats the value using the given formatter.

impl Eq for GpuContextError

impl Error for GpuContextError

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 GpuContextError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GpuContextError