if(arr) now a warning

Sat May 2 21:41:23 PDT 2015

On Sat, 02 May 2015 19:56:49 +0000, weaselcat wrote:

> On Saturday, 2 May 2015 at 14:37:08 UTC, Martin Nowak wrote:
>> On Friday, 1 May 2015 at 19:45:18 UTC, Walter Bright wrote:
>>> I suspect this kind of change and check would be appropriate for a D
>>> linter, and not be part of the core language.
>>
>> Yes it would fit nicely into a static analyzer, but DMD is currently
>> the only semantic analyzer we have.
> 
> dscanner exists

dscanner doesn't do full semantic analysis. and you need that, with full 
type inference, to catch all cases.
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