Struct ClassGroup 

pub struct ClassGroup {
    pub index: usize,
    pub label: Cow<'static, str>,
    /* private fields */
}

One group on a ClassGroupBreakdown.

Class-group breakdowns partition the class-id space into named subsets — e.g., {"vehicles": [3, 6, 8], "animals": [16, 17, 18]} for a semantic-segmentation rollup. Unlike Bucket (closed [lo, hi] over f64), a ClassGroup is a discrete set of class ids with strict partition discipline at the breakdown level.

class_ids is private behind Self::class_ids so the sorted-unique invariant established by Self::new is preserved post-construction — it’s load-bearing for the binary search in ClassGroupBreakdown::group_of and for deterministic hashing in the future per-paradigm params_hash.

Fields

index: usize

Position on the group axis. Dense 0..groups.len().

label: Cow<'static, str>

Human-readable label (e.g., "vehicles").

Implementations

impl ClassGroup

pub fn new( index: usize, label: impl Into<Cow<'static, str>>, class_ids: impl IntoIterator<Item = u32>, ) -> Self

Constructor that sorts and dedups class_ids. The user-facing validators (FFI / Python __post_init__) reject duplicates up-front; this dedup is defensive belt-and-suspenders for internal callers.

pub fn class_ids(&self) -> &[u32]

Class ids in this group, sorted ascending and deduplicated.

Trait Implementations

impl Clone for ClassGroup

fn clone(&self) -> ClassGroup

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClassGroup

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

Formats the value using the given formatter.

impl PartialEq for ClassGroup

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ClassGroup

impl StructuralPartialEq for ClassGroup