Hi,
I've been digging into the sources of Clojure and found frequencies.
There's the transient function and I thought I'd use it with a map and
conj. Why does this fail?
user= (conj {} {:y 1})
{:y 1}
user= (conj (transient {}) {:y 1})
ClassCastException [trace missing]
I ran into the issue
you must use conj! instead of conj.
在 2012-8-9 PM8:49，Jacek Laskowski ja...@japila.pl写道：
Hi,
I've been digging into the sources of Clojure and found frequencies.
There's the transient function and I thought I'd use it with a map and
conj. Why does this fail?
user= (conj {} {:y 1})
{:y 1}
On Thu, Aug 9, 2012 at 6:19 PM, Jacek Laskowski ja...@japila.pl wrote:
What's the rationale behind
TransientArrayMap *not* being a IPersistentCollection?
A transient map can't be a persistent map at the same time. You
need to use the transient version of conj, called conj! to conjoin
something
On Thu, Aug 9, 2012 at 2:54 PM, Baishampayan Ghose b.gh...@gmail.com wrote:
A transient map can't be a persistent map at the same time. You
need to use the transient version of conj, called conj! to conjoin
something into a transient map and then use persistent! to get a
persistent version
