Struct SubcategoryDef 

pub struct SubcategoryDef {
    pub name: String,
    pub parent: TopLevelCategory,
    pub display_name: Option<String>,
}

A subcategory entry — maps a subcategory name to a top-level parent.

Why: users need to extend the taxonomy without modifying the closed TopLevelCategory enum; subcategories are the extension point. What: bundles the subcategory name, its parent top-level, and an optional human-readable display_name. Test: covered by classify::tests::registry_merges_user_defined.

User-defined entries are loaded from YAML config and merged on top of the built-in defaults. Names are compared case-insensitively.

Fields

name: String

Subcategory name (e.g. "feature", "security", "payments").

parent: TopLevelCategory

Top-level parent this subcategory rolls up to.

display_name: Option<String>

Optional human-readable label; falls back to name if absent.

Implementations

impl SubcategoryDef

pub fn new(name: impl Into<String>, parent: TopLevelCategory) -> Self

Construct a new definition.

Why: simple constructor avoids the boilerplate of building the struct literal in test fixtures and YAML loaders. What: stores name (any Into<String>), the parent variant, and display_name = None. Test: covered by classify::tests::registry_merges_user_defined.

Trait Implementations

impl Clone for SubcategoryDef

fn clone(&self) -> SubcategoryDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SubcategoryDef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SubcategoryDef

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SubcategoryDef

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.