better debugging message

2 files changed, 3 insertions, 2 deletions

diff --git a/CHANGES b/CHANGES
index 8216a20..0dd9378 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,6 +1,7 @@
 2010-08-15 (1.5.0)
   * Included Java source codes for the Jruby extension made by Daniel Luz
     <dev@mernen.com>.
+  * Output full exception message of deep_const_get to aid debugging.
 2010-08-09 (1.4.6)
   * Fixed oversight reported in http://github.com/flori/json/issues/closed#issue/23,
     always create a new object from the state prototype.
diff --git a/lib/json/common.rb b/lib/json/common.rb
index b530670..1c91672 100644
--- a/lib/json/common.rb
+++ b/lib/json/common.rb
@@ -40,8 +40,8 @@ module JSON
         else
           begin
             p.const_missing(c)
-          rescue NameError
-            raise ArgumentError, "can't find const #{path}"
+          rescue NameError => e
+            raise ArgumentError, "can't get const #{path}: #{e}"
           end
         end
       end