Struct MusicComponentRegistry 

pub struct MusicComponentRegistry { /* private fields */ }

An ordered collection of music components keyed by qualified id.

Entries are stored in a BTreeMap so iteration order is deterministic.

Implementations

impl MusicComponentRegistry

pub fn new() -> Self

Creates an empty registry.

pub fn register(&mut self, entry: MusicComponentRegistryEntry) -> Result<()>

Registers an entry, failing if its id is already present.

pub fn get(&self, id: &Symbol) -> Option<&MusicComponentRegistryEntry>

Looks up an entry by its qualified id, if registered.

pub fn entries(&self) -> impl Iterator<Item = &MusicComponentRegistryEntry>

Iterates over all registered entries in id order.

pub fn by_capability( &self, capability: MusicCapability, ) -> Vec<&MusicComponentRegistryEntry>

Collects every entry that declares the given capability.

pub fn require_capability( &self, id: &Symbol, capability: MusicCapability, ) -> Result<&MusicComponentRegistryEntry>

Looks up an entry and requires it to declare the given capability.

Returns an error if the id is not registered or the component lacks the capability.

pub fn inventory_expr(&self) -> Expr

Encodes the full registry as a tagged inventory Expr map.

Trait Implementations

impl Clone for MusicComponentRegistry

fn clone(&self) -> MusicComponentRegistry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MusicComponentRegistry

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

Formats the value using the given formatter.

impl Default for MusicComponentRegistry

fn default() -> MusicComponentRegistry

Returns the “default value” for a type.

impl Eq for MusicComponentRegistry

impl PartialEq for MusicComponentRegistry

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MusicComponentRegistry