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Matteo Collina
384d7a40ce
Use a closure instead of a bound state object for the once() wrapper, keep the events object shape in removeListener() by storing undefined instead of deleting keys or reallocating the object, and outline the cold unhandled 'error' path from emit() and the max-listeners warning from _addListener() so both fit within V8 inlining budgets. ee-once +25%, ee-add-remove +12-22%, ee-listen-unique +7-15%, streams/pipe +13.9%. Signed-off-by: Matteo Collina <hello@matteocollina.com> PR-URL: https://github.com/nodejs/node/pull/64373 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>