Does Swift have any static types to harvest? :)

On Thu, Jun 5, 2014 at 1:50 AM, David Nolen <dnolen.li...@gmail.com> wrote:

> I wouldn't pass judgement on Swift too soon. Eval works just fine in the
> REPL and it appears the language supports hot code loads out of the box.
> Swift also has real support for final fields via 'let'. I personally think
> a ClojureSwift could be quite interesting :)
>
> On Wednesday, June 4, 2014, Timothy Baldridge <tbaldri...@gmail.com>
> wrote:
>
>> I'm starting to feel like a broken record, but here we go.
>>
>> Some things to think about:
>>
>> 1) Why do you want this? The JVM GC and JIT are some of the fastest (if
>> not the fastest) on the planet, so performance will never be a good reason
>> to do this.
>> 2) Do you want something like eval? As far as I can tell Swift is
>> statically compiled. Only XCode has the ability to modify a program on the
>> fly.
>> 3) Clojure is highly polymorphic and dynamically typed. Walk the source
>> code for first  and next and you'll find something like 3-4 polymorphic
>> calls involved in something as simple as (doseq [x (range 100)]), per item.
>> 4) I have yet to see performance numbers for Swift....how fast/slow is it
>> compared to other languages?
>>
>> To put this all into perspective, I once translated LazySeq to C++ and
>> ran some code (with a GC) that performed something like (doall (range
>> 100000)). The result was about 10x slower than Clojure on the JVM. So
>> simply running something in C++/LLVM doesn't mean that you'll even get
>> close to the performance of the JVM.
>>
>> Memory constrained systems might benefit from a LLVM Clojure. In addition
>> there's room for improvement with the JVM's horrible warmup times. Python
>> will boot instantly on most systems while the Clojure REPL takes about a
>> minute to boot on the RPi. But aside form that, I can't see much of a
>> point.
>>
>> If you want something like this there's always (
>> https://github.com/galdolber/clojure-objc)
>>
>> Timothy
>>
>>
>>
>>
>> On Wed, Jun 4, 2014 at 7:20 AM, Greg Knapp <virtual.g...@gmail.com>
>> wrote:
>>
>>> The recent release of Swift made me revisit Clojure on LLVM. This post
>>> from 2010
>>> <https://groups.google.com/d/msg/clojure/KrwtTsdYZ8I/Qf8PSMeoZCUJ>
>>> suggests it's a very difficult task.
>>>
>>> Swift would make this job easier? As with ClojureScript, generate Swift
>>> code / provide interop and Clojurian's can produce native iOS apps?
>>>
>>> Perhaps the biggest hole to be filled would be tooling (Xcode is not
>>> Clojure/Lisp friendly? i.e. no playground support)
>>>
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>>
>>
>>
>> --
>> “One of the main causes of the fall of the Roman Empire was that–lacking
>> zero–they had no way to indicate successful termination of their C
>> programs.”
>> (Robert Firth)
>>
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