In a language without mutability (or perhaps with something like borrow checking?), it would not be a problem. But in Swift, the option of introducing mutability always exists.
It's not impossible to impose some sort of discipline to mitigate these issues, but why is it a good idea to make values and references indistinguishable at the call site? I don't get it.
But it's not surprising. I don't get a lot of decisions that language designers have been making. The entire drive towards more and more syntactical abstraction in order to make everything look like a DSL is a mistake in my opinion.
It's not impossible to impose some sort of discipline to mitigate these issues, but why is it a good idea to make values and references indistinguishable at the call site? I don't get it.
But it's not surprising. I don't get a lot of decisions that language designers have been making. The entire drive towards more and more syntactical abstraction in order to make everything look like a DSL is a mistake in my opinion.