[swift-evolution] Proposal: Add .times method to Integer type
Cihat Gündüz
CihatGuenduez at posteo.de
Fri Dec 18 17:20:19 CST 2015
By the way and/or for all of you who like the idea of a .times method:
I’ve just setup a library for features like this `times` method and implemented the suggested method there. Feel free to contribute code / provide feedback via that third party library (as suggested by Chris) here:
https://github.com/Flinesoft/HandySwift <https://github.com/Flinesoft/HandySwift>
– Cihat
> Am 18.12.2015 um 23:42 schrieb Cihat Gündüz via swift-evolution <swift-evolution at swift.org>:
>
> As far as I can remember it was never a goal of Swift to be a purely object-oriented language. Instead I can find expressiveness stated explicitly amongst the three main goals behind the language here: https://swift.org/about/#platform-support <https://swift.org/about/#platform-support>
>
> Therefore I feel it is okay if the language becomes more expressive in a way that is less object-oriented. I see the suggested method as a functional construct.
>
> – Cihat
>
>
>> Am 18.12.2015 um 23:22 schrieb Kenny Leung <kenny_leung at pobox.com <mailto:kenny_leung at pobox.com>>:
>>
>> I don’t agree with this on the grounds that it isn’t very object-oriented. That is, it does not conform with what one usually associates with an integer. A number has certain intrinsic properties: 5 is greater than 4 but less than 6. If you’re a synesthete, it may have the color blue. But I never think of there being a big number 5 that takes something and repeats it 5 times. I think of a person taking something and doing it over 5 times.
>>
>> -Kenny
>>
>>> On Dec 18, 2015, at 10:25 AM, Cihat Gündüz via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>>>
>>> Dear Swift-Community,
>>>
>>> I’d like to propose an addition of a useful method, especially for beginners that also makes Swift much more readable in some situations: The addition of a .times method to Integer type(s).
>>>
>>> For example recently in one of my projects I wanted to test the scalability of an important piece of code and wrote this method:
>>>
>>> func testPerfQualityInPercentWithoutQualityImprovements() {
>>> self.measureBlock {
>>> let expectedQuality = 33.33
>>> 0.stride(to: 5_000, by: 1).forEach { _ in
>>> XCTAssertEqualWithAccuracy(self.crossword.qualityInPercent, expectedQuality, accuracy: 0.1)
>>> }
>>> }
>>> }
>>>
>>> As you can see what I basically wanted was to repeat the test some thousand times. I also like to use the Ruby language and one thing I love about it is that it has some really handy methods integrated to the language in situations like this which make the code very readable and therefore fun to use.
>>>
>>> I’m an even bigger fan of Swift so I’d love to see such useful methods appear in Swift, too and this is the first I came across that I really missed. So I’m asking myself, what if I could write the same code above like this:
>>>
>>> func testPerfQualityInPercentWithoutQualityImprovements() {
>>> self.measureBlock {
>>> let expectedQuality = 33.33
>>> 5_000.times {
>>> XCTAssertEqualWithAccuracy(self.crossword.qualityInPercent, expectedQuality, accuracy: 0.1)
>>> }
>>> }
>>> }
>>>
>>> I think it could be added to the Swift standard library very easily (for example by using the .stride method like I used) without any side effects and has enough advantages to be part of Swift itself. What do you think?
>>>
>>> I wish you all the best,
>>> Cihat
>>>
>>>
>>> P.S.: This is my very first mail in such a mailing list so I did everything correctly. ^.^
>>>
>>>
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>>> swift-evolution mailing list
>>> swift-evolution at swift.org <mailto:swift-evolution at swift.org>
>>> https://lists.swift.org/mailman/listinfo/swift-evolution
>>
>
>
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