diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/module/introspection.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/module/introspection.rb | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/module/introspection.rb b/activesupport/lib/active_support/core_ext/module/introspection.rb index 0cd0d1ff2c..36481927aa 100644 --- a/activesupport/lib/active_support/core_ext/module/introspection.rb +++ b/activesupport/lib/active_support/core_ext/module/introspection.rb @@ -18,4 +18,18 @@ class Module parents << Object unless parents.include? Object parents end + + # Return the constants that have been defined locally by this object and not + # in an ancestor. This method may miss some constants if their definition in + # the ancestor is identical to their definition in the receiver. + def local_constants + inherited = {} + ancestors.each do |anc| + next if anc == self + anc.constants.each { |const| inherited[const] = anc.const_get(const) } + end + constants.select do |const| + ! inherited.key?(const) || inherited[const].object_id != const_get(const).object_id + end + end end |