From 794d93f7a5ede9801929ef2a5292a0380f0700b5 Mon Sep 17 00:00:00 2001 From: Jamis Buck Date: Wed, 26 Apr 2006 17:46:43 +0000 Subject: Added Module#alias_method_chain git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4276 5ecf4fe2-1ee6-0310-87b1-e25e094e27de --- .../lib/active_support/core_ext/module/aliasing.rb | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 activesupport/lib/active_support/core_ext/module/aliasing.rb (limited to 'activesupport/lib/active_support/core_ext/module') diff --git a/activesupport/lib/active_support/core_ext/module/aliasing.rb b/activesupport/lib/active_support/core_ext/module/aliasing.rb new file mode 100644 index 0000000000..a80ff0f26d --- /dev/null +++ b/activesupport/lib/active_support/core_ext/module/aliasing.rb @@ -0,0 +1,16 @@ +class Module + # 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. + def alias_method_chain(target, feature) + alias_method "#{target}_without_#{feature}", target + alias_method target, "#{target}_with_#{feature}" + end +end -- cgit v1.2.3