Agree that :use should be deprecated, mostly as it's quite a barrier to
folks new to the language that you need to know 3 different parts of the ns
macro before you start.
However "objectively bad" is strong language indeed. ":refer :all" is vital
anywhere you want a DSL - if using something like Korma, for example, you
have 3 options :
1. Use :as and fill your code with ugly things like "(k/select user
(k/where {:name [k/like " fred"]})
2. Use ":refer [select where like..." and almost every other symbol in
Korma - might be ok if you have a perfect IDE, but still needlessly verbose
3. Use ":refer :all". It's perfectly fine, IMHO, when used responsibly.
- Korny
On 5 Aug 2013 09:09, "Anthony Grimes" <disciplera...@gmail.com> wrote:
> I can't think of a single good reason to not deprecate :use. :require can
> do everything :use could do now.
>
> This isn't about whether or not (:use ..) without :only is bad. I'd go as
> far as to say that outside of test files (and sometimes not even those) and
> repl sessions, :use without :only is objectively bad. Not much
> justification you can give me that'll make it unbad. But that isn't what
> this is about. Deprecating :use doesn't make doing the aforementioned bad
> thing impossible, and :refer :all was added to require for that specific
> purpose. :require still lets you do bad things if you really want to. All
> we're doing by deprecating :use is removing cruft and making things less
> complicated for new people. We currently have two things, and one of them
> does all the things the other one does and more, yet we still have both of
> them.
>
> Just my $0.02.
>
> On Tuesday, July 23, 2013 8:50:50 AM UTC-7, Greg wrote:
>>
>> I think I read somewhere that :use is no longer encouraged, but I could
>> be mistaken.
>>
>> From what I've read, it seems like most people agree that Clojure has too
>> many ways of including/importing/**referencing/requiring/using things:
>>
>> http://blog.8thlight.com/**colin-jones/2010/12/05/**
>> clojure-libs-and-namespaces-**require-use-import-and-ns.html<http://blog.8thlight.com/colin-jones/2010/12/05/clojure-libs-and-namespaces-require-use-import-and-ns.html>
>>
>> The above gives a very nice explanation of all the various difference,
>> but it also acknowledges their complexity.
>>
>> Since :use uses :require, and since :require can do everything that :use
>> can, can we simplify Clojure programming a bit for newcomers by deprecating
>> the use of :use? The situation in ClojureScript is even worse because it
>> adds :require-macros on top of all the other ways of including files.
>>
>> Ideally, it would be awesome if there was just a single directive for
>> everything, but perhaps there's some complicated low-level reason why
>> that's not possible. :-\
>>
>> Thoughts?
>>
>> Thanks,
>> Greg
>>
>> P.S. If this has already been brought up you have my sincere apologies.
>>
>> --
>> Please do not email me anything that you are not comfortable also sharing
>> with the NSA.
>>
>> --
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