> On May 28, 2016, at 1:10 AM, David Hart via swift-evolution > <[email protected]> wrote: > > Yet another alternative: would it be possible to disallow commas as variable > declaration separators and use them for condition clause separators again: > > let a = 4, b = 8 // becomes illegal and requires to separate them on two lines > > if a > 4, let c = foo(), let d = bar(), c != d { // now comma is not > ambiguous anymore > }
The ambiguity is between “case” and “let” conditions, specifically because “case” takes a pattern, and “let” is a valid pattern: guard (pattern1) = expr1, let x = expr2 else can be: guard (pattern1) = expr1, let (x) = expr2 else or: guard (pattern1) = expr1, (let x) = expr2 else -Chris _______________________________________________ swift-evolution mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-evolution
