On Oct 23, 2008, at 2:50 AM, [EMAIL PROTECTED] wrote:
> Who is casting which Boolean to what there? And, more importantly,
> what do I need to fix in my code line?
Hi Konrad,
Here is the correct syntax for 'use' in this case (with the current
SVN Clojure which now defines clojure/remove):
user=> (use '[clojure.zip :rename {remove zip-remove replace zip-
replace}] :verbose)
(clojure/in-ns 'user)
(clojure/refer 'clojure.zip :rename '{replace zip-replace, remove zip-
remove})
nil
user=>
The arguments to use are:
- libspecs
- a lib name, or
- a vector containing a lib name and key-value options
- a prefix list
which is a list beginning with a prefix that should be
prepended to
all the lib names in the libspecs that follow, and
libspecs (names or vectors) with the lib name shortened by
excluding
the prefix
- flags (:verbose, :reload, :reload-all)
The argument structure is intended to be flexible to use.
Unfortunately, that leads to some things being legal, but not what you
were hoping for, and some things being illegal but giving a confusing
message. I submitted a patch recently to improve error checking in use
and require, but it hasn't yet been accepted, and while it would help
in some cases, it wouldn't have helped you here.
Clojure could validate all the arguments to use/require and I think it
should since this appears to be frequent tripping point for folks.
Opinions on the value of that are welcome.
--Steve
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