Matteo Collina 9041ad047a readline: reduce createInterface overhead ...

Speed up Interface construction:

- Hoist the history accessor property descriptors to module scope and
  define them with a single ObjectDefineProperties call, instead of
  allocating six closures and four descriptor objects per instance.
- Stop assigning the history options onto the input stream. This avoids
  hidden class transitions on the user provided stream and no longer
  mutates it observably.
- Only check process.env.TERM for a dumb terminal when the interface is
  in terminal mode. Reading process.env goes through the environment
  interceptor and is comparatively expensive, and _ttyWrite is never
  called when terminal is false.

Signed-off-by: Matteo Collina <hello@matteocollina.com>
PR-URL: https://github.com/nodejs/node/pull/64585
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Gürgün Dayıoğlu <hey@gurgun.day>

2026-07-24 09:09:01 -07:00

..

readline-createInterface.js

readline: reduce createInterface overhead

2026-07-24 09:09:01 -07:00

readline-iterable.js

test: refactor test-readline-async-iterators into a benchmark

2023-09-23 08:17:14 +00:00