On Sat, Nov 21, 2009 at 11:43 PM, Alex Osborne <a...@meshy.org> wrote:
> John Harrop wrote:
> > On Sat, Nov 21, 2009 at 9:03 PM, Alex Osborne <a...@meshy.org
> >
> > (:import package1 class class class) (:import package2 class class)
> >
> >
> > I am. Especially since the latter already works.
> >
> > Alternatively, force (or at least allow!) square brackets, like
> > elsewhere in Clojure when a list is data rather than starting with
> > something operator-ish. Here, :import at least is operator-ish in its
> > semantics; package1 and package2 are not.
> >
>
> To me the paren syntax makes more sense as there is something special
> about the first thing in the list:
>
> (pkg class class) => [pkg.class pkg.class]
>
> While I normally expect vectors to be just a list of things, no special
> meaning:
>
> [class class] => [class class]
>
An excellent argument in favor of either
(:import pkg class class class)
or
(:import pkg [class class class])
I'd prefer the former. If you don't allow multi-imports in one :import, you
don't need any delimiters; :import comes first, then a package, and then
unqualified class names. If you do, then maybe
(:import pkg1 [class class class]
pkg2 [class class class])
so it's clear what's what -- each package is followed by a vector of
classes, then perhaps another package.
This is the structure adopted for cond:
(cond test1 expr1
test2 expr2)
Allow dropping the brackets if only importing one class, e.g.
(:import pkg1 aclass
pkg2 [bclass cclass dclass])
and it's even closer.
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