Struct ModelineRegistry 

pub struct ModelineRegistry { /* private fields */ }

Descriptor registry. Host-owned storage; modes register in on_activate and remove when their Guard drops (there is no on_deactivate); plugins via WIT, ML.6. Holds only descriptors — the churning content lives in the host content store, not here, so registration is rare and cheap.

Implementations

impl ModelineRegistry

pub fn new() -> Self

An empty registry.

pub fn register(&mut self, element: ModelineElement)

Register (or replace) a descriptor. Last-write-wins on a duplicate id — well-defined, matching the action-handler registry’s semantics.

pub fn remove(&mut self, id: &ElementId) -> Option<ModelineElement>

Remove a descriptor (idempotent). Returns the removed element.

pub fn get(&self, id: &ElementId) -> Option<&ModelineElement>

The descriptor registered under id, if any.

pub fn ids(&self) -> impl Iterator<Item = &ElementId>

Every registered id, in no particular order.

Added for OC.3’s teardown, which reverses a plugin’s elements by namespace rather than by a recorded token list: a plugin may register a segment at any point in its life, so a token list collected at load would miss a later one and leave its descriptor rendering forever with nobody to update it. Reversing by prefix has nothing to forget — the same reasoning the compilation parser factories are torn down by provenance.

pub fn len(&self) -> usize

Number of registered descriptors.

pub fn is_empty(&self) -> bool

True when no descriptor is registered.

pub fn zone_ordered(&self, zone: Zone) -> Vec<&ModelineElement>

Descriptors in zone, in left-to-right visual order: ascending by priority for every zone (ties broken by ElementId for determinism). The renderer right-aligns the whole Right zone block (lualine/helix model), so the highest-priority Right element still lands at the far right without inverting the sort — priority means the same thing (leftward → rightward) in all three zones.

Trait Implementations

impl Clone for ModelineRegistry

fn clone(&self) -> ModelineRegistry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ModelineRegistry

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

Formats the value using the given formatter.

impl Default for ModelineRegistry

fn default() -> ModelineRegistry

Returns the “default value” for a type.