Description
In the introduction to variables (https://doc.rust-lang.org/nightly/reference/variables.html#r-variable.intro) 'named local variables' are introduced. From that point on the text only refers to 'local variables'. I am left with some doubt whether they are referring to the same thing. I only found the phrase 'named local variables' once. Of course, a named local variable is a local variable, but are there unnamed local variables? They would need to be different to anonymous temporaries which are explicitly listed in the first paragraph.
If my understanding is correct, I think it would be clearer if the first paragraph did not use the word 'named' and just called them 'local variable' (and 'function parameter' now I am looking at it). You could then follow it up with a statement such as 'All local variables are provided names through a let statement', and something similar for function parameters.
It feels that there is also room to explicitly state what happens with something like let _ = ...... Does this introduce a variable? I don't know the definitive answer there, but the wildcard pattern says that it does not copy, move, or borrow. So if a variable was introduced it would remain in an uninitialized state despite having an initializer. So I think that this cannot be a variable and eliminates my front-runner for what an unnamed variable looked like!