Remove deprecated method alias_method_chain

1 files changed, 0 insertions, 48 deletions

diff --git a/activesupport/lib/active_support/core_ext/module/aliasing.rb b/activesupport/lib/active_support/core_ext/module/aliasing.rb
index 4a04bdd446..c48bd3354a 100644
--- a/activesupport/lib/active_support/core_ext/module/aliasing.rb
+++ b/activesupport/lib/active_support/core_ext/module/aliasing.rb
@@ -1,52 +1,4 @@
 class Module
-  # NOTE: This method is deprecated. Please use <tt>Module#prepend</tt> that
-  # comes with Ruby 2.0 or newer instead.
-  #
-  # Encapsulates the common pattern of:
-  #
-  #   alias_method :foo_without_feature, :foo
-  #   alias_method :foo, :foo_with_feature
-  #
-  # With this, you simply do:
-  #
-  #   alias_method_chain :foo, :feature
-  #
-  # And both aliases are set up for you.
-  #
-  # Query and bang methods (foo?, foo!) keep the same punctuation:
-  #
-  #   alias_method_chain :foo?, :feature
-  #
-  # is equivalent to
-  #
-  #   alias_method :foo_without_feature?, :foo?
-  #   alias_method :foo?, :foo_with_feature?
-  #
-  # so you can safely chain foo, foo?, foo! and/or foo= with the same feature.
-  def alias_method_chain(target, feature)
-    ActiveSupport::Deprecation.warn("alias_method_chain is deprecated. Please, use Module#prepend instead. From module, you can access the original method using super.")
-
-    # Strip out punctuation on predicates, bang or writer methods since
-    # e.g. target?_without_feature is not a valid method name.
-    aliased_target, punctuation = target.to_s.sub(/([?!=])$/, ""), $1
-    yield(aliased_target, punctuation) if block_given?
-
-    with_method = "#{aliased_target}_with_#{feature}#{punctuation}"
-    without_method = "#{aliased_target}_without_#{feature}#{punctuation}"
-
-    alias_method without_method, target
-    alias_method target, with_method
-
-    case
-    when public_method_defined?(without_method)
-      public target
-    when protected_method_defined?(without_method)
-      protected target
-    when private_method_defined?(without_method)
-      private target
-    end
-  end
-
   # Allows you to make aliases for attributes, which includes
   # getter, setter, and a predicate.
   #