Agreed. Also, if we’re supposed to say `MemoryLayout.of()` now, does
MemoryLayout still need a public init? Half of the proposal’s problems revolve
around the likely-unexpected behavior caused by passing T.self to the init
function (although, argument labels would also solve the issue).
- Dave Sweeris
On Jun 29, 2016, at 10:05 PM, Jacob Bandes-Storch via swift-evolution
<swift-evolution@swift.org> wrote:
>
> I'm not sure this bikeshed is the right color yet.
>
> How does the user remember the distinction between MemoryLayout<Int> and
> MemoryLayout.of(Int) ? To keep it clear, how about ofValue() rather than of()
> ?
>
> Also, could the implementation be simply
>
> static func ofValue(_ value: @autoclosure () -> T) ->
> MemoryLayout<T>.Type {
> return self
> }
>
> ?
>
> Jacob
>
> On Wed, Jun 29, 2016 at 7:36 PM, Erica Sadun via swift-evolution
> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote:
>
>> On Jun 29, 2016, at 3:59 PM, Xiaodi Wu via swift-evolution
>> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote:
>>
>> On Wed, Jun 29, 2016 at 4:50 PM, David Sweeris <daveswee...@mac.com
>> <mailto:daveswee...@mac.com>> wrote:
>> That’s the “as proposed” usage for getting the size of a value (from
>> https://gist.github.com/erica/57a64163870486468180b8bab8a6294e
>> <https://gist.github.com/erica/57a64163870486468180b8bab8a6294e>)
>> // Types
>> MemoryLayout<Int>.size // 8
>> MemoryLayout<Int>.arraySpacing // 8
>> MemoryLayout<Int>.alignment // 8
>>
>> // Value
>> let x: UInt8 = 5
>> MemoryLayout(x).dynamicType.size // 1
>> MemoryLayout("hello").dynamicType.arraySpacing // 24
>> MemoryLayout(29.2).dynamicType.alignment // 8
>>
>>
>> At least, I thought that was the latest version of the proposal. Maybe I’ve
>> gotten confused.
>>
>> There must be a typo in these examples. `MemoryLayout(x.dynamicType).size`
>> perhaps?
>
> I have listened. I have updated.
>
> https://gist.github.com/erica/57a64163870486468180b8bab8a6294e
> <https://gist.github.com/erica/57a64163870486468180b8bab8a6294e>
>
> // Types
> MemoryLayout<Int>.size // 8
> MemoryLayout<Int>.arraySpacing // 8
> MemoryLayout<Int>.alignment // 8
>
> // Value
> let x: UInt8 = 5
> MemoryLayout.of(x).size // 1
> MemoryLayout.of(1).size // 8
> MemoryLayout.of("hello").arraySpacing // 24
> MemoryLayout.of(29.2).alignment // 8
>
>
> -- E
>
>
> _______________________________________________
> swift-evolution mailing list
> swift-evolution@swift.org <mailto:swift-evolution@swift.org>
> https://lists.swift.org/mailman/listinfo/swift-evolution
> <https://lists.swift.org/mailman/listinfo/swift-evolution>
>
>
> _______________________________________________
> swift-evolution mailing list
> swift-evolution@swift.org
> https://lists.swift.org/mailman/listinfo/swift-evolution
_______________________________________________
swift-evolution mailing list
swift-evolution@swift.org
https://lists.swift.org/mailman/listinfo/swift-evolution
