Enum RuntimeError 

pub enum RuntimeError {
    IndexOutOfBounds {
        index: usize,
        length: usize,
    },
    ShapeMismatch {
        expected: usize,
        got: usize,
    },
    DimensionMismatch {
        expected: usize,
        got: usize,
    },
    InvalidOperation(String),
}

Errors produced by the CJC runtime.

All runtime operations that can fail return Result<T, RuntimeError>. This enum covers the four main failure modes: index violations, shape incompatibilities, dimension mismatches, and general invalid operations.

RuntimeError implements std::error::Error and [Display] for integration with Rust’s standard error handling.

Variants

IndexOutOfBounds

An index exceeded the valid range for a buffer or tensor dimension.

index is the out-of-bounds index that was provided, and length is the size of the dimension or buffer that was indexed into.

Fields

index: usize

The invalid index that was provided.

length: usize

The valid range is 0..length.

ShapeMismatch

The total number of elements did not match what the shape requires.

Raised by [Tensor::from_vec] when data.len() != product(shape), and by [Tensor::reshape] when the new shape’s element count differs.

Fields

expected: usize

The element count implied by the target shape.

got: usize

The actual element count provided.

DimensionMismatch

The number of dimensions (rank) did not match what was expected.

Raised by operations like [Tensor::matmul] (requires 2-D) or [Tensor::get] (index length must match ndim).

Fields

expected: usize

The required number of dimensions.

got: usize

The actual number of dimensions provided.

InvalidOperation(String)

A catch-all for operations that are invalid for the given arguments.

The contained String provides a human-readable description of what went wrong (e.g., “matmul requires 2-D tensors”).

Trait Implementations

impl Clone for RuntimeError

fn clone(&self) -> RuntimeError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RuntimeError

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

Formats the value using the given formatter.

impl Display for RuntimeError

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

Formats the value using the given formatter.

impl Error for RuntimeError

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.