Re: Recursions under lazy-seq - how does it work?

[Meikel Brandmeyer]

Hi,

Am 25.11.2009 um 22:43 schrieb David Brown:

  (defmacro lazy-seq
    "..."
    [& body]


That's it.  The neat thing is that you or I can also write macros that
do this kind of thing.  It's one of the things that makes Lisp so
powerful.

(list 'new 'clojure.lang.LazySeq (list* '#^{:once true} fn* [] body)))

(defmacro lazy-seq
  "..."
  [& body]
  `(LazySeq. ~(with-meta `fn* {:once true}) [] ~...@body))

(Assuming LazySeq was :imported...)

Sincerely
Meikel

But please don't write them in this style. This is done only, because syntax-quote is not yet fully available at the point in core.clj. A good style macro would like this:

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