KSksec·Dec 18, 2025Submission
Ruby-TI: Static type checking for MRuby. No annotations required
1 points · Open discussionengneer-hamachan
mruby-ti
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engneer-hamachan / mruby-ti
mruby-ti
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
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HN mentions by week3 dated mentions
Observed mentions: 2025-09-02 13:04:47 UTC to 2025-12-18 16:52:59 UTC. Weeks start Monday, UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Sep 1 | 2025-09-01 00:00:00 UTC | 2025-09-08 00:00:00 UTC | 1 | 1 | 0 |
| Sep 8 | 2025-09-08 00:00:00 UTC | 2025-09-15 00:00:00 UTC | 0 | 0 | 0 |
| Sep 15 | 2025-09-15 00:00:00 UTC | 2025-09-22 00:00:00 UTC | 0 | 0 | 0 |
| Sep 22 | 2025-09-22 00:00:00 UTC | 2025-09-29 00:00:00 UTC | 0 | 0 | 0 |
| Sep 29 | 2025-09-29 00:00:00 UTC | 2025-10-06 00:00:00 UTC | 0 | 0 | 0 |
| Oct 6 | 2025-10-06 00:00:00 UTC | 2025-10-13 00:00:00 UTC | 0 | 0 | 0 |
| Oct 13 | 2025-10-13 00:00:00 UTC | 2025-10-20 00:00:00 UTC | 0 | 0 | 0 |
| Oct 20 | 2025-10-20 00:00:00 UTC | 2025-10-27 00:00:00 UTC | 0 | 0 | 0 |
| Oct 27 | 2025-10-27 00:00:00 UTC | 2025-11-03 00:00:00 UTC | 0 | 0 | 0 |
| Nov 3 | 2025-11-03 00:00:00 UTC | 2025-11-10 00:00:00 UTC | 0 | 0 | 0 |
| Nov 10 | 2025-11-10 00:00:00 UTC | 2025-11-17 00:00:00 UTC | 0 | 0 | 0 |
| Nov 17 | 2025-11-17 00:00:00 UTC | 2025-11-24 00:00:00 UTC | 0 | 0 | 0 |
| Nov 24 | 2025-11-24 00:00:00 UTC | 2025-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 1 | 2025-12-01 00:00:00 UTC | 2025-12-08 00:00:00 UTC | 0 | 0 | 0 |
| Dec 8 | 2025-12-08 00:00:00 UTC | 2025-12-15 00:00:00 UTC | 0 | 0 | 0 |
| Dec 15 | 2025-12-15 00:00:00 UTC | 2025-12-22 00:00:00 UTC | 2 | 2 | 0 |
What Hacker News says
3 sourcesShow HN: Ruby-TI – Static Type Checker for Mruby (Version 1.0)
Hi HN! I’m Hamachang, a Rubyist from Japan.
I’d like to share a project I’ve been working on for quite some time: Ruby-TI, a static type checker / type analyzer for mruby — now at major version 1.0!
Ruby-TI is written in Go and performs parse → type inference → type checking on mruby code. If you’re embedding mruby or writing mruby scripts, it can help catch type issues before runtime — something that’s often missing in dynamic languages like Ruby.
What Ruby-TI does
Parses mruby source code
Infers types and checks for type errors
Helps find type mismatches early
Includes editor integrations (e.g., LSP support) for better development experience
Why this matters
mruby is a lightweight, embeddable implementation of Ruby, great for scripting in applications or constrained environments. Catching type errors statically can save debugging time a
Read the rest
nd increase confidence in your code — even without annotations.
Try it out
https://github.com/engneer-hamachan/ruby-ti
I’d love to hear feedback — issues, feature requests, or anything you find interesting!
Show HN: Ruby-TI mruby type analyser
This is a static type checker for mruby! It's still in development, but if you're interested, please take a look! We look forward to your feedback!
4 points · Open discussion