Struct KernelVariantSelection 

pub struct KernelVariantSelection {
    pub variant: &'static str,
    pub reason: Cow<'static, str>,
}

The concrete implementation selected by a kernel’s internal dispatcher.

Unlike KernelMatch (the EP’s claim over a node) and CaptureSupport (graph-capture eligibility), this records which implementation ran for an already-claimed node and why the dispatch predicate chose it. A single claimed op (e.g. MatMulNBits) can pick materially different kernels for the same shape family, so node-level claims alone do not explain what executed. The reason travels with the variant so a trace explains both.

Fields

variant: &'static str

Stable implementation name suitable for filtering and aggregation.

reason: Cow<'static, str>

Human-readable explanation of the dispatch predicate that selected it.

Implementations

impl KernelVariantSelection

pub fn new(variant: &'static str, reason: impl Into<Cow<'static, str>>) -> Self

Construct a selected variant with its dispatch reason.

Trait Implementations

impl Clone for KernelVariantSelection

fn clone(&self) -> KernelVariantSelection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KernelVariantSelection

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

Formats the value using the given formatter.

impl Eq for KernelVariantSelection

impl PartialEq for KernelVariantSelection

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for KernelVariantSelection