Single elements can legally span multiple lines; this would be hugely source breaking. What problem are you trying to solve?
On Thu, Oct 12, 2017 at 13:50 Dave Yost via swift-evolution < swift-evolution@swift.org> wrote: > > Speaking as a huge fan of optional semicolons... > > > This seems clear: > > semicolon : sequence of statements > :: comma : sequence of elements in an array literal > > and so it occurred to me that this should hold: > > A semicolon : the last statement on a line. > :: A comma : the last array element on a line. > > ∴ A comma after the last array element on a line should be optional. > > and these should be legal Swift: > > let list = [ > 1 > 2 > ] > > let dict = [ > 1 : 2 > 2 : 3 > ] > > equivalent to: > > let list = [ 1, 2 ] ; let dict = [ 1 : 2, 2 : 3 ] > > > Or, as the Language Reference would say: > > A semicolon (;) can optionally appear after any statement and is used to > separate multiple statements if they appear on the same line. > > > A comma (,) can optionally appear after any element of an array literal > and is used to separate multiple elements if they appear on the same line. > > > Or: > > A semicolon (;) separates statements but is optional after the last > statement on a line. > > > A comma (,) separates elements of an array literal but is optional after > the last element on a line. > > > > _______________________________________________ > swift-evolution mailing list > swift-evolution@swift.org > https://lists.swift.org/mailman/listinfo/swift-evolution >
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