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Title: repl: keep reference count for `process.on('newListener')` by addaleax · Pull Request #61895 · nodejs/node · GitHub

Open Graph Title: repl: keep reference count for `process.on('newListener')` by addaleax · Pull Request #61895 · nodejs/node

X Title: repl: keep reference count for `process.on('newListener')` by addaleax · Pull Request #61895 · nodejs/node

Description: When investigating a memory leak in one of our applications, we discovered that this listener holds on to a REPLServer instance and all heap objects transitively kept alive by it by capturing as part of its closure. It's cleaner to declare the listener outside of the REPLServer class and to actually clean it up properly when it is no longer required or meaningful, which is easily achieved through keeping a reference count.

Open Graph Description: When investigating a memory leak in one of our applications, we discovered that this listener holds on to a REPLServer instance and all heap objects transitively kept alive by it by capturing as pa...

X Description: When investigating a memory leak in one of our applications, we discovered that this listener holds on to a REPLServer instance and all heap objects transitively kept alive by it by capturing as pa...

Opengraph URL: https://github.com/nodejs/node/pull/61895

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86e6953 repl: keep reference count for `process.on('newListener')` addaleax Feb 20, 2026 https://github.com/nodejs/node/pull/61895/commits/86e6953a0801c9c33f0e2228a05906b1821aac85
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