Enum Error 

pub enum Error {
    IoError(Error),
    NixError(Error),
    NotImplemented(String),
    InvalidSize(usize),
    ShapeMismatch(String),
    UnknownDeviceType(u64, u64),
    UnknownBufferType(u32),
    InvalidMemoryType(String),
    PboDisconnected,
    PboMapped,
    NdArrayError(ShapeError),
    InvalidShape(String),
    InvalidArgument(String),
    InvalidOperation(String),
    PartialWriteRequiresReadWrite(String),
    QuantizationInvalid {
        field: &'static str,
        expected: String,
        got: String,
    },
    InsufficientCapacity {
        needed: usize,
        capacity: usize,
    },
    RegionOutOfBounds {
        region: Region,
        bounds: (usize, usize),
    },
    BatchIndexOutOfBounds {
        index: usize,
        batch: usize,
    },
}

Variants

IoError(Error)

NixError(Error)

NotImplemented(String)

InvalidSize(usize)

ShapeMismatch(String)

UnknownDeviceType(u64, u64)

UnknownBufferType(u32)

An imported fd sits on a filesystem we cannot classify as either a DMA-BUF (DMA_BUF_MAGIC) or shared memory (TMPFS_MAGIC).

Carries the f_type magic reported by fstatfs, normalized to the 32-bit unsigned value used by include/uapi/linux/magic.h, so it can be cross-referenced against that header directly on both 32- and 64-bit targets.

InvalidMemoryType(String)

PboDisconnected

The GL context backing a PBO tensor has been destroyed.

PboMapped

The PBO buffer is currently mapped and cannot be used for GL operations.

NdArrayError(ShapeError)

InvalidShape(String)

InvalidArgument(String)

InvalidOperation(String)

PartialWriteRequiresReadWrite(String)

A write-only map is refused only because it cannot express the requested window; the identical window mapped CpuAccess::ReadWrite is not refused (at whatever extra cost that backend’s ReadWrite costs — see the message). Distinct from Error::InvalidArgument so a caller that wants to retry with ReadWrite can match on this variant instead of a message, and knows the retry will not fail the same way again.

QuantizationInvalid

Structured quantization-invariant failure. Round-trippable through the C and Python boundaries so callers can diagnose which field failed without parsing strings.

Fields

field: &'static str

Which invariant failed: "scale.len", "zero_point.len", "axis", "per_channel_requires_axis", "per_tensor_redundant_axis", "dtype_is_integer".

expected: String

What the validator expected, e.g. "length matches scale (48)".

got: String

What was observed, e.g. "length 32".

InsufficientCapacity

A capacity-aware operation needs more bytes than the tensor’s underlying allocation provides.

Fields

needed: usize

Bytes the requested layout needs.

capacity: usize

Bytes the allocation provides.

RegionOutOfBounds

A crate::Tensor::view-style sub-region extends past the parent’s bounds. view/batch reject rather than clamp.

Fields

region: Region

The offending region.

bounds: (usize, usize)

The parent frame (width, height) in pixels.

BatchIndexOutOfBounds

A batch(n) index is >= the tensor’s leading batch dimension N.

Fields

index: usize

The requested element index.

batch: usize

The tensor’s leading dimension N.

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

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 From<Errno> for Error

Available on Unix only.

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<ShapeError> for Error

Available on crate feature ndarray only.

fn from(err: ShapeError) -> Self

Converts to this type from the input type.