Object#tap is not needed for Ruby >= 1.8.7

actionpack/lib/action_dispatch/http/request.rb

@@ -5,7 +5,6 @@ require 'strscan'
 require 'active_support/memoizable'
 require 'active_support/core_ext/array/wrap'
 require 'active_support/core_ext/hash/indifferent_access'
-require 'active_support/core_ext/object/tap'
 require 'active_support/core_ext/string/access'
 
 module ActionDispatch

activerecord/lib/active_record/attribute_methods/dirty.rb

@@ -1,5 +1,3 @@
-require 'active_support/core_ext/object/tap'
-
 module ActiveRecord
   module AttributeMethods
     module Dirty

activesupport/lib/active_support/core_ext/object/misc.rb

@@ -1,3 +1,2 @@
 require 'active_support/core_ext/object/returning'
-require 'active_support/core_ext/object/tap'
 require 'active_support/core_ext/object/with_options'

activesupport/lib/active_support/core_ext/object/tap.rb

@@ -1,16 +0,0 @@
-class Object
-  # Yields <code>x</code> to the block, and then returns <code>x</code>.
-  # The primary purpose of this method is to "tap into" a method chain,
-  # in order to perform operations on intermediate results within the chain.
-  #
-  #   (1..10).tap { |x| puts "original: #{x.inspect}" }.to_a.
-  #     tap    { |x| puts "array: #{x.inspect}" }.
-  #     select { |x| x%2 == 0 }.
-  #     tap    { |x| puts "evens: #{x.inspect}" }.
-  #     map    { |x| x*x }.
-  #     tap    { |x| puts "squares: #{x.inspect}" }
-  def tap
-    yield self
-    self
-  end unless Object.respond_to?(:tap)
-end

activesupport/lib/active_support/ruby/shim.rb

@@ -5,7 +5,6 @@
 # DateTime    to_date, to_datetime, xmlschema
 # Enumerable  group_by, each_with_object, none?
 # Integer     even?, odd?
-# Object      tap
 # Process     Process.daemon
 # REXML       security fix
 # String      ord
@@ -15,7 +14,6 @@ require 'active_support/core_ext/date/calculations'
 require 'active_support/core_ext/date_time/conversions'
 require 'active_support/core_ext/enumerable'
 require 'active_support/core_ext/integer/even_odd'
-require 'active_support/core_ext/object/tap'
 require 'active_support/core_ext/process/daemon'
 require 'active_support/core_ext/string/conversions'
 require 'active_support/core_ext/rexml'

activesupport/test/core_ext/object_ext_test.rb

@@ -1,9 +0,0 @@
-require 'abstract_unit'
-require 'active_support/core_ext/object/metaclass'
-
-class ObjectExtTest < Test::Unit::TestCase
-  def test_tap_yields_and_returns_self
-    foo = Object.new
-    assert_equal foo, foo.tap { |x| assert_equal foo, x; :bar }
-  end
-end