[swift-evolution] [Idea] Passing an Array to Variadic Functions

[Goffredo Marocchi]

 Let's build strings the same way we log.... String("\(authorOfAutoLayoutMasterBook) could you please show \(canICountHowMany) times more love to \(ToolThatBuildsInterfaces) :)") ^_^ ?



[[iOS messageWithData:ideas] broadcast]

> On 18 Apr 2016, at 20:06, Erica Sadun via swift-evolution <swift-evolution at swift.org> wrote:
> 
> 
>> On Apr 18, 2016, at 1:01 PM, Tony Allevato via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>> I would also be supportive of removing varargs for now, in favor of a rethought design when generics are completed.
>> 
>> In their current form, varargs are fairly limited—because they're mapped onto an array, the argument types must be homogeneous, so either your function can only usefully take a single type of argument, or you potentially lose information because they have to be upcast to a common supertype or Any in order to build the array.
>> 
>> I'm not convinced that varargs produce code that is much cleaner than the array version. Is this:
>> 
>>  String(format: "%@ is %d years old", name, age)
>> 
>> that much cleaner than:
>> 
>>  String(format: "%@ is %d years old", arguments: [name, age])
> 
> I would like to see format strings go away and be replace with safer inline annotations.
> 
> -- E, somewhat agnostic on variadics
> 
> 
> 
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