Module component 

Foundation polymorphism plumbing shared by bb-dsl (authoring) and bb-runtime (dispatch).

Structs

ConstructError

Errors surfaced by ConstructFn.

DependencyDecl

Author-declared sibling dependency at a named slot. Compiler verifies role match; runtime reaches it via RuntimeResourceRef::dependency::<T>(slot).

Enums

ComponentPackage

Component-package origin tag. Surfaces in introspection + telemetry.

RestoreError

Error variants surfaced by ConcreteComponent::restore.

Traits

AnyComponent

Dyn-safe downcast surface. No blanket impl — Box<dyn AnyComponent> would otherwise shadow per-type vtables. bb::Concrete derive emits the impl.

ErasedComponent

Marker for engine-owned component instances. Blanket impl covers every Any + Send + Sync.

Type Aliases

ConstructFn

Per-type constructor. Downcasts &dyn Any → &Config and calls T::new. Install looks it up by TYPE_NAME.

RestoreFn

Monomorphized T::restore; used by snapshot/resume.

SerializeFn

Monomorphized T::serialize captured at derive-codegen time.