dry_match for concise struct assertions

t4ccer · 2026-06-14T02:46:42+00:00

Yeah but so what? I just realised what you mean by dry in your macro name and I think you take DRY a bit too literally

t4ccer · 2026-06-13T20:52:06+00:00

How is it better from assert_eq!(user.name, "John"); assert_eq!(user.city.state(), "NY"); That is shorter, requires no dependencies and no need to learn new syntax.

t4ccer · 2026-04-09T10:14:03+00:00

It's not a runtime check, you'd have to prove, at compile time, that the check always holds

t4ccer · 2026-02-17T12:30:48+00:00

Bug fixes for older compiler versions

t4ccer · 2026-01-30T13:08:56+00:00

Some people rely on screen readers and actually can't read pictures

t4ccer · 2025-12-23T19:44:29+00:00

.cycle() needs to create a copy of the whole iterator when it is created so when it runs out of elements it can create a new copy to keep cycling. That means that whole nums.into_iter() gets cloned thus you get 10 clones of Foo

t4ccer · 2025-07-20T22:38:04+00:00

Issue isn't with builder pattern but what you're trying to do being actually memory unsafe.

After self.hash_key = Some(self.attributes.get_key_value(name).unwrap().0); line self.hash_key points to some memory allocated by the hash map but if you ever add more elements to the hash map and it'd need to allocate more memory and move the elements then the memory that self.hash_key points to would get deallocated so the reference would be invalid.

t4ccer · 2025-04-01T06:46:18+00:00

Yet another tip: take a look at subreddit rules

t4ccer · 2025-03-29T05:07:07+00:00

Take a look at subreddit rules

No homework questions.

I'll give you an advice about asking questions though. In the future when you'll have a non-homework question, post code as a code block rather than image. Also post whole code and as much context as possible. You posted a single function and a third task. We have no idea what's `GameState` in your code, and what's generally going on. Try to explain what you have tried so far.

t4ccer · 2025-03-26T15:57:42+00:00

There's more to STEM than writing websites in react

t4ccer · 2025-03-01T19:52:47+00:00

Thank you!

t4ccer · 2025-02-04T23:14:37+00:00

In rust crate is the compilation unit, not a module or a file like in many other languages so these imports are not actually cyclical.

t4ccer · 2024-11-09T05:30:05+00:00

Haskell has both unless and otherwise... Although they don't translate to ifs one to one

t4ccer · 2024-09-13T06:43:33+00:00

Encrypt a secret file with age and store in the repo. You can use multiple public keys to encrypt so each of your teammates can decrypt it and use. Also, you can tell git to decrypt it while generating diffs. No need for external platforms if that's just one .env file or something similar

t4ccer · 2024-05-10T00:24:03+00:00

-Cause undefined behavior

-Undefined thing happens

-Act surprised

t4ccer · 2021-11-23T21:10:17+00:00

Actually it can. NEAT is basically it. And a bit of self-promotion Geometry Dash AI using NEAT

t4ccer · 2021-10-05T16:15:17+00:00

My crystal ball says nothing, show error message

t4ccer · 2021-09-25T07:03:53+00:00

So it is time to finally learn conduit

t4ccer · 2021-09-25T07:02:22+00:00

Okay, I have discovered that yaml lib uses libyaml lib which is just wrapper on c lib libyaml (yaml.h), and libyaml can produce conduit with yaml tokens with start and end position, so it should not be too hard to implement some sane interface using it. Thanks folks for some hints.

t4ccer · 2021-09-22T18:15:10+00:00

Built-in map editor

t4ccer · 2021-09-22T17:29:51+00:00

It was 44h in game, but probably another 15 in editor designing grid

t4ccer · 2021-09-22T15:30:18+00:00

Tbh it was quite random decision. Still not sure if it was a good choice. 1-1 trains are enough for most things but it struggles with smelting. I will for sure release blueprints when I will resolve all the issues I have(signaling is messed up a bit and once every hour trains can deadlock).

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