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-rw-r--r--activesupport/lib/active_support/core_ext/module/delegation.rb12
1 files changed, 12 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/module/delegation.rb b/activesupport/lib/active_support/core_ext/module/delegation.rb
index 8703587243..29fd5cfc4d 100644
--- a/activesupport/lib/active_support/core_ext/module/delegation.rb
+++ b/activesupport/lib/active_support/core_ext/module/delegation.rb
@@ -52,6 +52,18 @@ class Module
# Foo.new.min # => 4
# Foo.new.max # => 11
#
+ # It's also possible to delegate a method to the class by using +:class+:
+ #
+ # class Foo
+ # def self.hello
+ # "world"
+ # end
+ #
+ # delegate :hello, to: :class
+ # end
+ #
+ # Foo.new.hello # => "world"
+ #
# Delegates can optionally be prefixed using the <tt>:prefix</tt> option. If the value
# is <tt>true</tt>, the delegate methods are prefixed with the name of the object being
# delegated to.