Swift 1.2 and Xcode 6.3 beta

#1

Post by glhaynes » Mon, Feb 09, 2015, 7:03 PM UTC

Swift 1.2 and Xcode 6.3 beta
developer.apple.com

Re: Swift 1.2 and Xcode 6.3 beta

#2

Post by sbilstein » Mon, Feb 09, 2015, 7:21 PM UTC

Coming to Swift as a Scala developer I really enjoy using the language. While it lacks the functional completeness of other functional languages I like writing it, it's specific set of features is very handy and easy to pick up. I think Apple did a great job building a pragmatic language that gives people good constructs and lets them get their jobs done rather quickly. I'm looking forward to Swift on Xcode stabilize and mature.

Re: Swift 1.2 and Xcode 6.3 beta

#3

Post by melling » Mon, Feb 09, 2015, 7:28 PM UTC

This is practical. It's something you wish for within a couple hours of Swift.

let x : SomeThing

if condition {

   x = foo()

} else {

   x = bar()

}

use(x)

Re: Swift 1.2 and Xcode 6.3 beta

#4

Post by bigdubs » Mon, Feb 09, 2015, 7:32 PM UTC

melling wrote: post #3

This is practical. It's something you wish for within a couple hours of Swift. let x : SomeThing if condition { x = foo() } else { x = bar() } use(x)

short of having a language mechanism for doing an 'uninitialized' let, conditional operators could work:

let x : Something = condition ? foo() : bar()

but yeah, it would be nice to defer initialization of an immutable.

Re: Swift 1.2 and Xcode 6.3 beta

#5

Post by jafingi » Mon, Feb 09, 2015, 7:34 PM UTC

bigdubs wrote: post #4

melling wrote: post #3

This is practical. It's something you wish for within a couple hours of Swift. let x : SomeThing if condition { x = foo() } else { x = bar() } use(x)

short of having a language mechanism for doing an 'uninitialized' let, conditional operators could work: let x : Something = condition ? foo() : bar() but yeah, it would be nice to defer initialization of an immutable.

Let's hope you don't have a baz.

Re: Swift 1.2 and Xcode 6.3 beta

#6

Post by LinaLauneBaer » Mon, Feb 09, 2015, 7:35 PM UTC

bigdubs wrote: post #4

melling wrote: post #3

This is practical. It's something you wish for within a couple hours of Swift. let x : SomeThing if condition { x = foo() } else { x = bar() } use(x)

short of having a language mechanism for doing an 'uninitialized' let, conditional operators could work: let x : Something = condition ? foo() : bar() but yeah, it would be nice to defer initialization of an immutable.

often times you want to do more stuff in either case so ? does not always work. The if-else approach is more general.

Re: Swift 1.2 and Xcode 6.3 beta

#7

Post by mikeash » Mon, Feb 09, 2015, 7:40 PM UTC

bigdubs wrote: post #4

melling wrote: post #3

This is practical. It's something you wish for within a couple hours of Swift. let x : SomeThing if condition { x = foo() } else { x = bar() } use(x)

short of having a language mechanism for doing an 'uninitialized' let, conditional operators could work: let x : Something = condition ? foo() : bar() but yeah, it would be nice to defer initialization of an immutable.

Note that it's no longer "would," this is a feature included in this beta. OP's code is now legal.

Re: Swift 1.2 and Xcode 6.3 beta

#8

Post by [deleted] » Mon, Feb 09, 2015, 7:43 PM UTC

[deleted]

Re: Swift 1.2 and Xcode 6.3 beta

#9

Post by frewsxcv » Mon, Feb 09, 2015, 7:45 PM UTC

Why is being logged-in required to view the Release Notes?

Re: Swift 1.2 and Xcode 6.3 beta

#10

Post by DaNmarner » Mon, Feb 09, 2015, 7:47 PM UTC

This might be easily overlooked: optional has been introduced (back-ported?) to Objective-C in the form of nullability annotation!