Support logical-block macro working correctly in external namespaces.

Signed-off-by: Stuart Halloway <stu@thinkrelevance.com>

src/clj/clojure/pprint/pprint_base.clj

@@ -311,14 +311,19 @@ and :suffix."
   {:added "1.2", :arglists '[[options* body]]}
   [& args]
   (let [[options body] (parse-lb-options #{:prefix :per-line-prefix :suffix} args)]
-    `(do (if (level-exceeded) 
+    `(do (if (#'clojure.pprint/level-exceeded) 
            (.write ^java.io.Writer *out* "#")
-           (binding [*current-level* (inc *current-level*)
-                     *current-length* 0] 
-             (start-block *out*
-                          ~(:prefix options) ~(:per-line-prefix options) ~(:suffix options))
-             ~@body
-             (end-block *out*)))
+           (do 
+             (push-thread-bindings {#'clojure.pprint/*current-level*
+                                    (inc (var-get #'clojure.pprint/*current-level*))
+                                    #'clojure.pprint/*current-length* 0})
+             (try  
+              (#'clojure.pprint/start-block *out*
+                           ~(:prefix options) ~(:per-line-prefix options) ~(:suffix options))
+              ~@body
+              (#'clojure.pprint/end-block *out*)
+              (finally 
+               (pop-thread-bindings)))))
          nil)))
 
 (defn pprint-newline

test/clojure/test_clojure/pprint/test_pretty.clj

@@ -245,6 +245,31 @@ Usage: *hello*
  )
 
 
-
+;;; Some simple tests of dispatch
+
+(defmulti 
+  test-dispatch
+  "A test dispatch method"
+  {:added "1.2" :arglists '[[object]]} 
+  #(and (seq %) (not (string? %))))
+
+(defmethod test-dispatch true [avec]
+  (pprint-logical-block :prefix "[" :suffix "]"
+    (loop [aseq (seq avec)]
+      (when aseq
+	(write-out (first aseq))
+	(when (next aseq)
+	  (.write ^java.io.Writer *out* " ")
+	  (pprint-newline :linear)
+	  (recur (next aseq)))))))
+
+(defmethod test-dispatch false [aval] (pr aval))
+
+(simple-tests dispatch-tests
+  (with-pprint-dispatch test-dispatch
+    (with-out-str 
+      (pprint '("hello" "there"))))
+  "[\"hello\" \"there\"]\n"
+)