Interface Emitter<T>

Minimal event emitter for the vscode-free core.

Delivery iterates a snapshot of the listener set — the same contract VS Code's own EventEmitter has, and the one that is easy to get wrong: a listener disposing itself, or another, part-way through a firing must not cause anyone else to be skipped.

Listener failures are not isolated: fire propagates the exception and does not call later listeners in that delivery. Callers that need best-effort observers must isolate them before registration.

interface Emitter<T> {
    dispose(): void;
    event(listener: (value: T) => void): { dispose(): void };
    fire(value: T): void;
}

Type Parameters

Index

Methods

dispose event fire

Methods

dispose

dispose(): void
Detaches every listener. Further fire calls do nothing.

Returns void
- Defined in src/foundation/internal/emitter.ts:19

event

event(listener: (value: T) => void): { dispose(): void }
Subscribes. The returned disposable detaches exactly this listener.
Parameters
- listener: (value: T) => void
Returns { dispose(): void }
- Defined in src/foundation/internal/emitter.ts:15

fire

fire(value: T): void
Delivers value to a snapshot; a listener exception propagates immediately.
Parameters
- value: T
Returns void
- Defined in src/foundation/internal/emitter.ts:17

Interface Emitter<T>

Type Parameters

Index

Methods

Methods

dispose

Returns void

event

Parameters

Returns { dispose(): void }

fire

Parameters

Returns void

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