[swift-evolution] [Pitch] #warning

[Vladimir.S]

Hmm... and like `#warning` :

let TODO_WeNeedToMakeItFaster  = "Current implementation is too slow, use 
xxxx" // some comments that you need to show

and we have a warning(unused value)! from compiler! with

WARNING at line 8, col 7: initialization of immutable value 
'TODO_WeNeedToMakeItFaster' was never used; consider replacing with 
assignment to '_' or removing it
   let TODO_WeNeedToMakeItFaster  = "Current implementation is too slow, 
use xxxx" // some comments that you need to show
   ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

PROFIT :)

So.. don't we need normal solution ?

On 30.05.2016 20:33, Michael Peternell wrote:
> Something similar to #error seems to be already implemented ;)
>
> #if os(iOS)
>     import Error_sorryThisDoesntWorkOnIOSyet
> #endif
>
> I know it's a hack, but it works :) And the good thing is, there is no way to prevent these kind of hacks.. (but IMHO, #error would look nicer)
>
> -Michael
>
>> Am 30.05.2016 um 17:49 schrieb Vladimir.S via swift-evolution <swift-evolution at swift.org>:
>>
>> I also think that we need standardized feature for todo/fixme in language, so when you got one's code you can have all needed warnings the creator wants to produce.
>> I.e. probably not some directive, but some kind of.. special comment? So XCode/any 3rd party tools/IDE will know about this standardized format and produce/show user-created 'warnings' instead of compiler(as core team against such warnings in compiler)
>>
>> On 30.05.2016 18:28, Shawn Erickson via swift-evolution wrote:
>>>
>>> On Sun, May 29, 2016 at 3:49 PM Leonardo Pessoa via swift-evolution
>>> <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>>>
>>>    Tools like SonarQube can raise a "warning" for comments started with
>>>    "TODO:" or "FIXME:". Wouldn't it be more interesting if those could be
>>>    presented as warnings instead of using #warning? And this could be an
>>>    optional setting as commented would not influence compilation.
>>>
>>>
>>> It seems wise to me to have the concept of todo, fixme, etc. formalized in
>>> the language so that source kit, the swift compiler, and things like Xcode
>>> would have a well defined thing to look for and extract information from.
>>>
>>> I support this proposal and hope it can cover these typical use cases.
>>>
>>> -Shawn
>>>
>>>
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