I'm trying to actually change some instances of :use to :require :refer :all,
as urged by several people here, and it's not as simple as I had hoped. Or I'm
missing something obvious.
If I have a simple little project containing a namespace declared as follows:
(ns use2require.core
(:use [use2require myfns yourfns]))
then I can indeed make it work with:
(ns use2require.core
(:require [use2require.myfns :refer :all]
[use2require.yourfns :refer :all]))
but that's quite a lot more verbose, not only because of the extra keywords but
because I have to list the complete namespaces individually. In real projects I
may have half a dozen or more namespaces in a single line, so that will really
blow up.
I assume that there's a shortcut but what I've tried hasn't worked, and I don't
see documentation or examples of this.
If I try:
(ns use2require.core
(:require [use2require myfns yourfns :refer :all]))
under Eclipse/CCW with Clojure 1.5.1 I get:
;; Clojure 1.5.1
;; Switching to use2require.core namespace
IllegalArgumentException Don't know how to create ISeq from:
clojure.lang.Keyword clojure.lang.RT.seqFrom (RT.java:505)
#<Namespace use2require.core>
If I try:
(ns use2require.core
(:require [use2require myfns yourfns] :refer :all))
then I get:
;; Clojure 1.5.1
;; Switching to use2require.core namespace
Exception Unsupported option(s) supplied: :all clojure.core/load-libs
(core.clj:5408)
#<Namespace use2require.core>
I did figure out that something *slightly* better than the
full-namespace-per-line version above that actually works:
(ns use2require.core
(:require [use2require [myfns :refer :all]
[yourfns :refer :all]]))
But it's really not much better. This too will explode the number of lines in
many of my ns declarations.
Is there indeed a reasonably concise way to do this? What is it?
Thanks,
-Lee
PS: For most of my purposes the ideal ns declaration for the example above
would be just (ns use2require.core) -- with an implicit "find everything
wherever you can, looking in the project directory and anywhere else
reasonable, and hassle me about it only if you can't find something or if
there's a conflict that I have to resolve." I know that many of you will have
valid reasons for not wanting this in the contexts within which you work, and I
know that it's unlikely that anything in Clojure will change to accommodate my
perspective here, but I sure would like it if I could do something so simple.
And I'd certainly not like this stuff to get more cumbersome than it already is.
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