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Malte UblandClaude Opus 5.5
a0e850a9f1
An emitter used both through its static type and through an untyped
reference aborted: a typed `on` followed by an untyped `emit` (or a typed
`emit` from a class body reaching a listener added through `any`) hit
"computed event collided with a fixed event", and an untyped
`emit('error', ...)` trapped outright. Listener entries held either a
typed adapter or a checked-dynamic thunk, and the emit core trapped when
an entry lacked the form the emit carried.
Entries may now carry both forms. Listeners registered through
scr_emitter_on_dyn keep their thunk beside the typed adapter; typed
emits call the adapter and untyped emits call the thunk with the
arguments as given. The class dispatch of compiled emitters registers
untyped listeners under an event typed code fixes with a typed adapter
for its tuple, and converts the arguments of an untyped emit of such an
event to the tuple for listeners with typed parameters
(scr_emitter_emit_mixed; a mismatch throws the checked conversion's
TypeError). Registrations and emits through untyped values otherwise go
through scr_emitter_on_any/emit_any: runtime adapters under 'error' and
the meta events, and Node's unhandled-'error' contract. The emit core
throws instead of trapping when an entry has no usable form. The
dynamic half of the registry sits behind a hook only on_any installs,
and on_flex/emit_flex keep their plain behavior, so programs without
untyped emitter calls link none of it.
listenerCount, eventNames, removeAllListeners, listeners, rawListeners,
setMaxListeners and getMaxListeners through an untyped value on a
compiled emitter answered "is not a function"; they now dispatch to the
native registry.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>