[pypy-commit] pypy default: Give a more explicit error message.

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r47213:b8e9360ba188
Date: 2011-09-12 11:37 +0200
http://bitbucket.org/pypy/pypy/changeset/b8e9360ba188/

Log:	Give a more explicit error message.

diff --git a/pypy/interpreter/function.py b/pypy/interpreter/function.py
--- a/pypy/interpreter/function.py
+++ b/pypy/interpreter/function.py
@@ -242,8 +242,10 @@
             # we have been seen by other means so rtyping should not choke
             # on us
             identifier = self.code.identifier
-            assert Function._all.get(identifier, self) is self, ("duplicate "
-                                                                 "function ids")
+            previous = Function._all.get(identifier, self)
+            assert previous is self, (
+                "duplicate function ids with identifier=%r: %r and %r" % (
+                identifier, previous, self))
             self.add_to_table()
         return False