Class SlotRegistry

Index

Constructors

Methods

clear getAll hasExtension listSlots register subscribe unregister

Constructors

constructor

new SlotRegistry(): SlotRegistry

Returns SlotRegistry

Methods

clear

clear(): void

Reset everything. Primarily for tests.

Returns void

getAll

getAll<T = unknown>(slot: string): SlotContribution<T>[]
Get a snapshot of the contributions for a slot, in registration order.
Type Parameters
- T = unknown
Parameters
- slot: string
Returns SlotContribution<T>[]

hasExtension

hasExtension(extensionId: string): boolean
True iff the extension has any registered contributions.
Parameters
- extensionId: string
Returns boolean

listSlots

listSlots(): string[]

All slots that currently have at least one contribution.

Returns string[]

register

register(
extensionId: string,
contributions: readonly SlotContribution<unknown>[],
): void
Register one or more contributions. All contributions in the call are applied atomically; listeners are notified once per affected slot at the end.

Throws if any contribution's extensionId mismatches the others.
Parameters
- extensionId: string
- contributions: readonly SlotContribution<unknown>[]
Returns void

subscribe<T = unknown>(slot: string, listener: SlotListener<T>): () => void
Subscribe to a slot. The listener is invoked immediately with the current contribution list and on every subsequent change.

Returns an unsubscribe function.
Type Parameters
- T = unknown
Parameters
- slot: string
- listener: SlotListener<T>
Returns () => void

unregister

unregister(extensionId: string): void
Remove all contributions from an extension. Notifies listeners for each affected slot. Safe to call for an unknown extension (no-op).
Parameters
- extensionId: string
Returns void