diff options
author | David Heinemeier Hansson <david@loudthinking.com> | 2005-01-25 17:55:55 +0000 |
---|---|---|
committer | David Heinemeier Hansson <david@loudthinking.com> | 2005-01-25 17:55:55 +0000 |
commit | c37e8d365b9470a593668476fc9be0af6da2e812 (patch) | |
tree | 7374ddad0771220e85c63afd8f0a83bf2e59716a /activesupport/lib/core_ext | |
parent | 136962322b8da0d6c09b4962194216cc4d248130 (diff) | |
download | rails-c37e8d365b9470a593668476fc9be0af6da2e812.tar.gz rails-c37e8d365b9470a593668476fc9be0af6da2e812.tar.bz2 rails-c37e8d365b9470a593668476fc9be0af6da2e812.zip |
Added methods for removing subclasses -- couldnt make it work with the regular nested-module approach (ObjectSpace was being difficult), so this is a straight inclusion
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@506 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activesupport/lib/core_ext')
-rw-r--r-- | activesupport/lib/core_ext/object_and_class.rb | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/activesupport/lib/core_ext/object_and_class.rb b/activesupport/lib/core_ext/object_and_class.rb new file mode 100644 index 0000000000..59a463ae29 --- /dev/null +++ b/activesupport/lib/core_ext/object_and_class.rb @@ -0,0 +1,24 @@ +class Object #:nodoc: + def remove_subclasses_of(superclass) + subclasses_of(superclass).each { |subclass| Object.send(:remove_const, subclass) rescue nil } + end + + def subclasses_of(superclass) + subclasses = [] + ObjectSpace.each_object(Class) do |k| + next if !k.ancestors.include?(superclass) || superclass == k || k.to_s.include?("::") || subclasses.include?(k.to_s) + subclasses << k.to_s + end + subclasses + end +end + +class Class #:nodoc: + def remove_subclasses + Object.remove_subclasses_of(self) + end + + def subclasses + Object.subclasses_of(self) + end +end |