Struct Registry 

pub struct Registry { /* private fields */ }

The draft-time collection of Operation types known to a pipeline.

Every call to Pipeline::step registers the operation type (idempotently), validates its OperationMetadata, and records a factory that the runtime uses to dispatch execution. Child pipelines created by the *_from_child methods merge their registries into the parent. End users do not typically touch the registry directly — it is exposed primarily so tooling that walks compiled pipelines can inspect what operations are available.

Implementations

impl Registry

pub fn new() -> Self

Constructs an empty registry.

pub fn register<O: Operation + 'static>(&mut self) -> Result<(), DraftError>

Registers an Operation type. Idempotent — subsequent calls for the same type are no-ops. Validates the returned OperationMetadata and fails with DraftError::InvalidMetadata if any declared output or extension uses a NameSpec::DerivedFrom that references a non-existent or wrongly-typed input.

Trait Implementations

impl Default for Registry

fn default() -> Registry

Returns the “default value” for a type.