matz (Yukihiro Matsumoto)
- Login: matz
- Email: matz@ruby.or.jp
- Registered on: 05/09/2008
- Last sign in: 05/16/2024
Issues
| open | closed | Total | |
|---|---|---|---|
| Assigned issues | 149 | 686 | 835 |
| Reported issues | 1 | 29 | 30 |
Projects
| Project | Roles | Registered on |
|---|---|---|
| Ruby | Owner, Committer | 05/18/2008 |
Activity
11/18/2025
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02:09 AM Ruby Feature #21695: Optimizing Ruby performance with Ruby itself instead of Rust
- I am interested. What kind of API do you need? Since bare memory allocation could break the whole app (leads to DoS), it's not that easy to disclose general purpose memory allocation (that's the reason YJIT, RJIT etc. has their own alloc...
11/13/2025
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- I think“Ruby's License” is something described in COPYING, i.e., it is inseparable from BSD-2clause. Historically it was combination with GPL, so some description should be updated.
Matz.
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- The `Enumerable` module basically relies on the `#each` method which only works in the forward direction, and the only way to scan backwards is to convert it to an array once. I agree with `Array#rfind` (which can be implemented efficien...
11/07/2025
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10/23/2025
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- I'd like to document clearly that those 3 methods require explicit "require".
Matz.
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- I agree with @naruse. We will revisit this issue some time (a few months?) later.
Matz.
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- Is there any real-world use-case for Integer#popcount method?
Bit-array?
Matz.
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- HI,
* Don't use principle of least surprise as your rationale, since background and assumption vary person to person
* I don't think Hashes can be naturally considered as Arrays with non-integer indexes. You can tell it from Hash#eac... -
- Agreed. Go ahead.
Matz.
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- Accepted. Go ahead.
Matz.