> Bah! I tried to simplify the example code, and missed conveying the
> actual problem. Your example code (and sadly, mine) pulls *ns* at
> runtime, the logging macro doesn't; it writes the value of the *ns* at
> macro-expansion-time precisely so that it will be the "right" value
> when called.
Are you sure?
From logging.clj:
(defmacro log
"Logs a message, either directly or via an agent. See also the
level-specific
convenience macros."
([level message]
`(log ~level ~message nil))
([level message throwable]
`(log ~level ~message ~throwable (str *ns*)))
([level message throwable log-ns]
`(if (and @*allow-direct-logging*
(not (clojure.lang.LockingTransaction/isRunning)))
(do-log *log-system* ~level (delay ~message) ~throwable ~log-
ns)
(send-off *log-system-agent*
do-log ~level (delay ~message) ~throwable ~log-ns))))
user=> (use 'clojure.contrib.logging)
nil
user=> (macroexpand-1 '(log :info "Hello, world"))
(clojure.contrib.logging/log :info "Hello, world" nil)
user=> (macroexpand-1 *1)
(clojure.contrib.logging/log :info "Hello, world" nil
(clojure.core/str clojure.core/*ns*))
user=> (macroexpand-1 *1)
(if (clojure.core/and (clojure.core/deref clojure.contrib.logging/
*allow-direct-logging*) (clojure.core/not
(clojure.lang.LockingTransaction/isRunning))) (clojure.contrib.logging/
do-log clojure.contrib.logging/*log-system* :info (clojure.core/delay
"Hello, world") nil (clojure.core/str clojure.core/*ns*))
(clojure.core/send-off clojure.contrib.logging/*log-system-agent*
clojure.contrib.logging/do-log :info (clojure.core/delay "Hello,
world") nil (clojure.core/str clojure.core/*ns*)))
Looks like you want to unquote (str *ns*) in your definition... if I
do that and rebuild, the REPL looks much happier --
Clojure 1.1.0-alpha-SNAPSHOT
user=> (use 'clojure.contrib.logging)
nil
user=> (macroexpand-1 '(log :info "Hello, world"))
(clojure.contrib.logging/log :info "Hello, world" nil)
user=> (macroexpand-1 *1)
(clojure.contrib.logging/log :info "Hello, world" nil "user")
-R
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