[alpaca128]

It might be convenient at first but could become a frustrating bug if you change the struct fields and also less readable in some cases. It has its upsides but I personally think making the syntax more complex for this one detail isn't worth it.

Side note: matching f64 by value isn't a good idea either way, is deprecated and will become an error in the future.

[foldr]

>matching f64 by value

I wasn't thinking about matching floats by value, just destructuring a Point to obtain the coordinates as separate variables. Come to think of it though, as Rust already allows

    let Point{x, y} = pl

there would be little benefit to allowing positional matching (and in fact it would create a nasty ambiguity). So yeah, as you said, you'd have to reserve the positional syntax for initialisation.

My overall point here isn't that Rust has made bad design decisions. It's just that the end result of a bunch of sensible design decisions is that initialising arrays of structs is clunky. It might well be that this problem isn't fixable without creating other, worse, problems. However, I think it's a problem that's emblematic of what the OP was talking about. We have here a language that's so concerned with solving difficult problems in clever ways that it's ended up backed into a corner when it comes to something as ridiculously simple as initialising an array of structs.

[alpaca128]

> It's just that the end result of a bunch of sensible design decisions is that initialising arrays of structs is clunky.

Yes, though at least the language gives you tools to make it more convenient. In the previous examples that would be constructors, and macros can help too (`println`, `vec` etc. exist for that reason).

I myself like to create tiny macros to shorten things like `UnicodeSegmentation::graphemes(s, true).count()` when I have to properly handle unicode. Sure I would prefer to have it be shorter from the start, though that wouldn't make it as obvious how expensive the operation is compared to just getting the size in bytes.