I'm having some trouble in Swift these days when Control Flow blocks and expressions get the same name, telling apart when when I'm doing legit Control Flow and when I'm in a multi-line expression with an implicit(!!!) return.
The most recent was my confusion was with result builders that the "for" in that is really more of a foreach {}
So all of a sudden do and catch will be sometimes be expression and sometimes Control Flow?
I don't mind having both CF and expression but how do I know which I'm doing if they have the same name? Maybe a "doSet" and "catchSet" would be okay? But people seem to really want the same names for these very different creatures? That's the part I don't understand.
Is this just the way modern languages do things? Could someone point me at a paper or a youtube video or give me some search terms so I can educate myself on why everyone hates control flow programming and wants expressions to overload those terms? Is it just "functional programing" and I just need to do it? I get the value of no side effects... but then on the other hand we have people adding ~Copyable and borrow to the language too, which seem all about a return to side effects, really.
Honestly, I'm flexible and can learn so I defer to what the community wants but I'd love some resources so I can understand the debate better.
Ah, the ship seems to have sailed and I'm just going to have to write C++ libraries now 
[Accepted with modifications] SE-0380: `if` and `switch` expressions (This is very much a joke. I will enjoy not writing return in my switch statements with everyone else!)