Voting: std.logger

Dicebot via Digitalmars-d digitalmars-d at puremagic.com
Fri Sep 5 13:16:56 PDT 2014


On Wednesday, 3 September 2014 at 22:34:30 UTC, Kevin Lamonte 
wrote:
>> Sounds like a candidate for an attribute, just prefix a 
>> function or function call with @trace(level)?
>
> I've got a feature request in for just that: 
> https://issues.dlang.org/show_bug.cgi?id=13406
>
> While thinking about it I realize that it's actually very easy 
> to generalize @trace into the equivalent of Common Lisp 
> :before, :after, and :around methods: @scope(&scopeFn) .  (It 
> would work even better if scope(success) and scope(failure) 
> exposed what they are returning/throwing.)
>
> In the meantime Log4D has a (barely tested) mixin.

This can already be implemented in a library if "mixin of an 
implementation" idiom is used. I think it fits D style better 
(having attributes modify actual code flow is unprecedented)


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