Fix Reloadable to handle the case where a class that has been 'removed' has not yet been garbage collected.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3528 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 7 insertions, 0 deletions

diff --git a/activesupport/lib/active_support/core_ext/class/removal.rb b/activesupport/lib/active_support/core_ext/class/removal.rb
index 468c77d81b..42cb9f6e4e 100644
--- a/activesupport/lib/active_support/core_ext/class/removal.rb
+++ b/activesupport/lib/active_support/core_ext/class/removal.rb
@@ -9,8 +9,15 @@ class Class #:nodoc:
 
   def remove_class(*klasses)
     klasses.each do |klass|
+      # Skip this class if there is nothing bound to this name
+      next unless defined?(klass.name)
+      
       basename = klass.to_s.split("::").last
       parent = klass.parent
+      
+      # Skip this class if it does not match the current one bound to this name
+      next unless klass = parent.const_get(basename)
+
       parent.send :remove_const, basename unless parent == klass
     end
   end