Thats a small but huge improvement :) On Tue, Jan 5, 2016 at 6:58 PM, Chris Lattner <[email protected]> wrote:
> You’re completely right, but we don’t need to change the swift language to > fix that. As of 3f19714, which I just pushed, we now emit this error > message (which includes a fixit hint to insert the colon): > > t.swift:2:33: error: use [:] to get an empty dictionary literal > var distanceCache: [Int: Int] = [] > ^ > : > > instead of: > > t.swift:2:33: error: contextual type '[Int : Int]' cannot be used with > array literal > var distanceCache: [Int: Int] = [] > ^~ > > That should address the problem, thanks for pointing this out! > > -Chris > > On Jan 5, 2016, at 4:51 AM, James Campbell via swift-evolution < > [email protected]> wrote: > > The problem for me is that is so counter intuitive I didn't even know you > could do that. > > On Tue, Jan 5, 2016 at 12:50 PM, Jeremy Pereira < > [email protected]> wrote: > >> I don’t understand what the problem is >> >> > On 5 Jan 2016, at 12:39, James Campbell via swift-evolution < >> [email protected]> wrote: >> > >> > See this code: >> > var distanceCache: [Int: Int] = Dictionary<Int, Int>() >> > >> > It is very long and tedious to write especially if what I am storing >> changes. >> > >> > I propose we be allowed to do the following: >> > var distanceCache: [Int: Int] = [] >> >> You can do >> >> var distanceCache: [Int: Int] = [:] >> >> Also >> >> var distanceCache2 = [Int: Int]() >> >> >> > Perhaps this dictionary syntax is just confusing and it was a bad idea >> to make it the same as an array. Most languages use "{" so why did swift >> choose to share "[" with arrays and dictionaries. >> >> It’s not the same, you need the colons inside. I imagine that braces were >> discarded on the grounds that it would confuse the compiler with respect to >> closures, for example >> >> var myClosure = {} // is a variable of type () -> () >> >> >> > >> > -- >> > Wizard >> > [email protected] >> > +44 7523 279 698 >> > _______________________________________________ >> > swift-evolution mailing list >> > [email protected] >> > https://lists.swift.org/mailman/listinfo/swift-evolution >> >> > > > -- > Wizard > [email protected] > +44 7523 279 698 > _______________________________________________ > swift-evolution mailing list > [email protected] > https://lists.swift.org/mailman/listinfo/swift-evolution > > > -- Wizard [email protected] +44 7523 279 698
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