On Wed, Jan 6, 2016 at 12:47 PM, Daniel Eggert via swift-users
<swift-users@swift.org> wrote:
> I’m storing an Int? inside a [String:Any] but I can’t retrieve it again. Is
> this expected behaviour or a bug in Swift?
>
> /Daniel
>
> % swift
> Welcome to Apple Swift version 2.2-dev (LLVM 3ebdbb2c7e, Clang f66c5bb67b,
> Swift 1f2908b4f7). Type :help for assistance. 3> let d: [String:Any] =
> ["foo": (nil as Int?)]
> d: [String : Any] = 1 key/value pair {
> [0] = {
> key = "foo"
> value = {
> payload_data_0 = 0x0000000000000000
> payload_data_1 = 0x636c6f6f542f7201
> payload_data_2 = 0x77732f736e696168
> instance_type = 0x00000001004f6028
> }
> }
> }
> 4> let v = d["foo"]
> v: Any? = Some {
> payload_data_0 = 0x0000000000000000
> payload_data_1 = 0x0000000000000001
> payload_data_2 = 0x0000000000000000
> instance_type = 0x00000001004f6028
> }
I think this is a bug, but not in the code that you are showing. 'v'
is correctly typed as 'Any?'. The issue is that the compiler does not
allow it to be downcast to 'Int?':
> v! as Int?
<REPL Input>:1:2: error: cannot convert value of type 'Any' (aka
'protocol<>') to type 'Int?' in coercion
v! as Int?
Would you mind filing a bug?
Dmitri
--
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <griboz...@gmail.com>*/
_______________________________________________
swift-users mailing list
swift-users@swift.org
https://lists.swift.org/mailman/listinfo/swift-users
