diff options
Diffstat (limited to 'activesupport/lib')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/object/inclusion.rb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/inclusion.rb b/activesupport/lib/active_support/core_ext/object/inclusion.rb index cc7edc0f17..f30333fd02 100644 --- a/activesupport/lib/active_support/core_ext/object/inclusion.rb +++ b/activesupport/lib/active_support/core_ext/object/inclusion.rb @@ -6,6 +6,7 @@ class Object # "Konata".in?(characters) # => true # def in?(another_object) + raise ArgumentError.new("You must supply another object that responds to include?") unless another_object.respond_to?(:include?) another_object.include?(self) end end |