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Chris Tate
816c664058
events.once(emitter, name) was refused. The emitter dispatches statically emitted events to typed listeners through invokers built per argument tuple, so the lowering takes the event's tuple from the program-wide event table and builds a capture-free function that boxes that tuple into the any[] Node fulfills with, and one for the 'error' tuple. scr_events_once registers both as one-shot typed listeners behind emitted adapters (emitterOnceAdapter). The first to fire settles the promise (fulfilled with the arguments, or rejected with the error) and removes the other, as in Node; awaiting 'error' itself registers only the one listener. The shared state holds the emitter and the listener closures weakly, so a never-fired once creates no cycle. Options, computed or meta event names, EventTarget and stream receivers, and events emitted with computed names or checked-dynamic listeners stay refused. The fallback declarations type the result Promise<unknown[]>; under @types/node (Promise<any[]>) TypeScript code narrows it to unknown[].