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| author | Jean Boussier <[email protected]> | 2024-09-03 09:38:18 +0200 |
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| committer | Jean Boussier <[email protected]> | 2024-09-03 12:21:36 +0200 |
| commit | b7fa2dd0d0b7328f8f713b7cf0332d1e34c20fe4 () | |
| tree | a4ac16a74fbe895602302b3950efaaa8db4464ed /rubyparser.h | |
| parent | 245ed2fc890f7f33526e1c0f42b79c30366493e6 (diff) | |
rb_enc_str_asciionly_p: avoid always fetching the encoding
Profiling of `JSON.dump` shows a significant amount of time spent in `rb_enc_str_asciionly_p`, in large part because it fetches the encoding. It can be made twice as fast in this scenario by first checking the coderange and only falling back to fetching the encoding if the coderange is unknown. Additionally we can skip fetching the encoding for the common popular encodings.
Notes: Merged: https://.com/ruby/ruby/pull/11533
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