This is actually probably not a bad solution. You wouldn't even need to
rewrite, couldn't you just expand to a let?
(let [* clojure.core.matrix.*
+ clojure.core.matrix.+]
(+ ... (* ...)))
Although thinking about it, you'd have to let-bind all possible operators
every time, and the compiler doesn't do any dead-code elimination (although
Hotspot might).
On 5 September 2013 17:35, Dave Ray <dave...@gmail.com> wrote:
> Maybe this is a dumb idea, but could you have a macro that rewrites code
> to use your ops?
>
> (require '[clojure.core.matrix :as m])
> (m/with-ops (+ ... (* ...) ...))
>
> and then all the "special" symbols get rewritten/qualified with
> clojure.core.matrix?
>
> Dave
>
>
>
> On Wed, Sep 4, 2013 at 10:26 PM, Sean Corfield <seancorfi...@gmail.com>wrote:
>
>> You only get the warning if you 'use' the namespace or 'refer all'
>> tho', correct?
>>
>> And we've recently seen a lot of discussion that basically says "don't
>> do that" so it seems that either users of core.matric are going to
>> have two "approved" choices:
>> * require core.matrix with an alias, or choose to rename colliding
>> names however you want
>> * exclude the colliding symbols via refer-clojure and require them
>> from core.matrix as referred symbols
>>
>> That's seems right to me: it is explicit and provides no surprises; it
>> gives the user control over how to manage things.
>>
>> Sean
>>
>> On Wed, Sep 4, 2013 at 6:22 PM, Mikera <mike.r.anderson...@gmail.com>
>> wrote:
>> > Hi all,
>> >
>> > While building the API for core.matrix, I've fun into a few cases where
>> the
>> > "best" name is a direct clash with clojure.core.
>> >
>> > Examples are "+", "zero?", "vector?", "=="
>> >
>> > In many of these cases, the core.matrix behaviour is a natural
>> extension of
>> > the clojure.core function (i.e. it extends the same functionality to
>> > arbitrary N-dimensional arrays).
>> >
>> > I'm not very happy with any of the options I can see for handling this:
>> >
>> > A) Use the good names in the "clojure.core.matrix" namespace. Problem:
>> that
>> > gives you a ton of nasty warnings of the type "WARNING: + already
>> refers to:
>> > #'clojure.core/+ in namespace: test.blank, being replaced by:
>> > #'clojure.core.matrix/+". Significant boilerplate must be maintained by
>> the
>> > user in their ns declaration to prevent these warnings. I don't like
>> forcing
>> > users to maintain boilerplate, and I think that normal idiomatic usage
>> > should be warning-free.
>> >
>> > B) Separate the name-clashing functions into separate namespaces - e.g.
>> > "clojure.core.matrix.operators". Problem: that's something of an
>> artificial
>> > division, and again it forces users to do extra ns-management work to
>> access
>> > the functions they want.
>> >
>> > C) Use different names. Problem: names would be worse, and this would be
>> > inconsistent and confusing, especially for functions that do
>> effectively the
>> > same thing.
>> >
>> > D) Encourage users to use aliases. Problem: that's horrendously ugly and
>> > inconvenient for numerical code. Users with any sense of elegance in
>> their
>> > coding style would quite rightly throw their hands up in disgust.
>> >
>> > Currently we're doing B), I'd prefer to do A) but can't figure out a
>> way to
>> > automatically suppress the warnings.
>> >
>> > Any better ideas?
>> >
>> >
>> >
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>>
>> --
>> Sean A Corfield -- (904) 302-SEAN
>> An Architect's View -- http://corfield.org/
>> World Singles, LLC. -- http://worldsingles.com/
>>
>> "Perfection is the enemy of the good."
>> -- Gustave Flaubert, French realist novelist (1821-1880)
>>
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