On 9 January 2013 08:37,  <wujek.sru...@gmail.com> wrote:
> 4. what does ^:static do? I read on SO that it is not used any more, but the 
> source code in clojure.core still has these, and various tutorials use them 
> as well.

This SO thread seems to describe it well:
http://stackoverflow.com/questions/7552632/what-does-static-do-in-clojure

Is there anything you're still unsure about?

> 5. since when does one need to use ^:dynamic on vars to be able to use
> (binding [...]) to rebind them thread-locally? Clojure in Action has a nice
> example of a simple mocking framework that uses this feature but without
> dynamic, but it is about clj 1.2 I think. 1.3 seems to require it though.

You're quite right, this changed in 1.3. It's even the first entry in
the 1.3 changelog:

https://github.com/clojure/clojure/blob/clojure-1.3.0/changes.txt

which reads:

    1.1 Earmuffed Vars are No Longer Automatically Considered Dynamic

The old convention was that vars surrounded with *earmuffs* were
automatically considered dynamic and appropriate for a (binding [...])
form. Now, everything must be explicitly made dynamic using ^:dynamic.

Phil

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