Re:When O3 is 2x slower than O2
by mihaic on Sunday November 02, 2025 @09:04AM
(#45790446)
I'm actually fine with almost all the decisions that Rust made in terms of logic and concepts, but specifically don't like the synthax itself: the symbols, keywords like the consonant-only "fn" instead of "func" for instance, the fact that || {} starts a lambda instead of || -> void {}, the fact that you can return things by simply having them in an if branch. It's the main reason I don't use the language.
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Most of those are a matter of preference, implicit return is just plain better, and it would be absolutely insane if closures required the return type to be specified. I do agree that the toilet bowl `|_|()` syntax is ugly, though.
Again, I think JS/Typescript has a better syntax, since the implicit syntax is better when unbranched, like x => expression, but it's harder to read the more branches there are, since it's hard to visually scan where results can be located.
Re:When O3 is 2x slower than O2
by magicalhippo on Sunday November 02, 2025 @04:44PM
(#45793709)
> implicit return is just plain better
I really dislike them. Makes me wonder if you just got distracted and forgot to finish the function. Be explicit, don't make me have to spend time figuring it out.
Meh, if these are the main reasons you don't use the language, I don't know what to tell you. I get having preferences, but whether the keyword is `fn` or `func` is such a banal, trivial thing that doesn't matter at all.