Re: [swift-corelibs-dev] Need of inputs for NSExpression

[Pushkar N Kulkarni via swift-corelibs-dev]

Hi Tony, 

I have a question. 

>> Some of it is pretty tricky to implement without the dynamic behavior of ObjC though.

I guess you were referring to something like "NSExpression(format:"FUNCTION(4.2, 'factorial')")" where `factorial` is a function defined on an extension of NSNumber. Now, this translation of a string to a function handle/pointer seems quite intimidating to me, in the Swift context :-) 

Are there any known approaches? Is there any kind of general guidance you'd give here? 

Thank you!

Pushkar N Kulkarni,

IBM Runtimes

Simplicity is prerequisite for reliability - Edsger W. Dijkstra

-----swift-corelibs-dev-boun...@swift.org wrote: -----

To: Nethra Ravindran <nethraravindra...@gmail.com>
From: Tony Parker via swift-corelibs-dev
Sent by: swift-corelibs-dev-boun...@swift.org
Date: 01/12/2017 09:44PM
Cc: swift-corelibs-dev@swift.org
Subject: Re: [swift-corelibs-dev] Need of inputs for NSExpression

Hi Nethra,

Thanks for your interest!

Probably the best place to get started would be to take a look at our documentation about NSExpression. Some of it is pretty tricky to implement without the dynamic behavior of ObjC though.

- Tony

On Jan 12, 2017, at 4:24 AM, Nethra Ravindran via swift-corelibs-dev <swift-corelibs-dev@swift.org> wrote:

Hi All,

This is Nethra Ravindran and I’m a university student doing my internship. I would like to contribute to Swift Foundation. I have looked upon NSExpression and I am interested in contributing the implementation. I would be very thankful if I could get some pointers about it.

Thank you in advance for your help!

Regards,

Nethra Ravindran

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