Enum Error 

#[non_exhaustive]
pub enum Error {
    BackendUnavailable(&'static str),
    Unsupported(&'static str),
    OutOfMemory,
    LaunchFailure {
        code: i32,
    },
    InvalidArgument(&'static str),
    Backend {
        backend: BackendKind,
        code: i64,
    },
    Other(&'static str),
}

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.

BackendUnavailable(&'static str)

Backend not compiled in or runtime library not found.

Unsupported(&'static str)

Operation is not supported by the selected device / driver.

OutOfMemory

Out of device or pinned host memory.

LaunchFailure

Kernel launch failed; opaque driver code stored verbatim.

Fields

code: i32

InvalidArgument(&'static str)

Misuse: violated an _unchecked precondition.

Backend

Backend-specific error wrapped as a code so we don’t allocate on hot paths. Backends keep their own decode tables.

Fields

backend: BackendKind

code: i64

Other(&'static str)

Anything else.

Trait Implementations

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 Error for Error

Available on crate feature std only.

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.