Re: OT: Swift is now open source

[deadalnix via Digitalmars-d]

On Friday, 4 December 2015 at 03:18:02 UTC, Steven Schveighoffer 
wrote:
The type system is static, and everything is done via 
inference, which is very nice.


According to a swift dev I talked to, part of the algorithm is 
exponential and they have compile time problem because of this.

Speed wise, I can't be sure. I'm sure others here have a better 
understanding. All I've used it for so far is UI code on iOS. 
Usability-wise, it's much easier to write swift than Objective 
C.


I've seen all kind of numbers. It seems that there are a lot of 
feature that can be enabled/disabled, like overflow check, and it 
changes the performance profile quite a lot.

One thing I would LOVE to see in D from swift is inference of 
enum names.

In D-speak, it looks like this:

enum Foo
{
   Bar,
   Baz
}

Foo foo;

switch(foo)
{
   case .Bar: // Foo is implied
   case .Baz:
}

void fun(Foo);

fun(.Bar); // Foo is implied

I don't think we could have this exact syntax, though.

-Steve

switch(foo) with(Foo) {
   case Bar:
   case Baz:
}