[Pre-RFC] Multiple if-let guards (not chaining)

[steffahn]

@H2CO3

It's not clear what goal PatternElementHelper achieves. What are you actually trying to do, and what goes wrong?

Note that the comment/thread linked below is where this thread’s proposal came from, it helps to explain the context a bit more

The Fall-Through Proposal

I believe that if let guards are planned, but they always apply to the entire match arm. This restriction could be removed by requiring parentheses in some cases: match foo { A | B if bar => {} // is equivalent to (A | B) if bar => {} // This could be allowed too: (A if bar) | (B if !bar) => {} (A if let x = true) | (B if let x = false) => {} }