> On Oct 24, 2014, at 17:57 , Kyle Sluder <[email protected]> wrote:
>
> On Oct 24, 2014, at 5:24 PM, Rick Mann <[email protected]> wrote:
>>
>> I discovered a neat property of Swift: Anywhere I can pass a closure, I can
>> also pass a object method (of matching type), and if I reference it from an
>> instance, it captures that instance for the call:
>>
>> class
>> Foo
>> {
>> func actOnFoo(inValue: Int)
>> {
>> }
>> }
>>
>> func
>> neato()
>> {
>> var foo: Foo = Foo();
>> doSomething(foo.actOnFoo);
>> }
>>
>> func
>> doSomething(inFunc: (Int) -> ())
>> {
>> }
>>
>> Inside doSomething(), is it possible to get at inFunc's "self" (in this
>> case, it would be foo)?
>
> Imagine there were a keyword that allowed this. What would it evaluate to if
> the caller *didn’t* pass in a method, but rather a pure closure?
>
> --Kyle Sluder
Well, I guess I could imagine this:
if let theFoo = inFunc.self as Foo
{
theFoo.doSomethingElseOnFoo();
}
--
Rick Mann
[email protected]
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