knu	2017-09-19 17:45:12 +0900 (Tue, 19 Sep 2017)

  New Revision: 59966

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59966

  Log:
    Alias Set#=== to #include?
    
    * set.rb (Set#===): Added via [Feature #13801] by davidarnold.
    
    Closes #1673.

  Added files:
    trunk/spec/rubyspec/library/set/case_equality_spec.rb
    trunk/spec/rubyspec/library/set/sortedset/case_equality_spec.rb
  Modified files:
    trunk/NEWS
    trunk/lib/set.rb
    trunk/test/test_set.rb
Index: spec/rubyspec/library/set/sortedset/case_equality_spec.rb
===================================================================
--- spec/rubyspec/library/set/sortedset/case_equality_spec.rb	(nonexistent)
+++ spec/rubyspec/library/set/sortedset/case_equality_spec.rb	(revision 59966)
@@ -0,0 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/spec/rubyspec/library/set/sortedset/case_equality_spec.rb#L1
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../shared/include', __FILE__)
+require 'set'
+
+describe "SortedSet#===" do
+  it_behaves_like :sorted_set_include, :===
+end

Property changes on: spec/rubyspec/library/set/sortedset/case_equality_spec.rb
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+LF
\ No newline at end of property
Index: spec/rubyspec/library/set/case_equality_spec.rb
===================================================================
--- spec/rubyspec/library/set/case_equality_spec.rb	(nonexistent)
+++ spec/rubyspec/library/set/case_equality_spec.rb	(revision 59966)
@@ -0,0 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/spec/rubyspec/library/set/case_equality_spec.rb#L1
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../shared/include', __FILE__)
+require 'set'
+
+describe "Set#===" do
+  it_behaves_like :set_include, :===
+end

Property changes on: spec/rubyspec/library/set/case_equality_spec.rb
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+LF
\ No newline at end of property
Index: NEWS
===================================================================
--- NEWS	(revision 59965)
+++ NEWS	(revision 59966)
@@ -149,6 +149,7 @@ with all sufficient information, see the https://github.com/ruby/ruby/blob/trunk/NEWS#L149
 
 * Set
   * Add Set#to_s as alias to #inspect [Feature #13676]
+  * Add Set#=== as alias to #inspect [Feature #13801]
 
 * WEBrick
 
Index: lib/set.rb
===================================================================
--- lib/set.rb	(revision 59965)
+++ lib/set.rb	(revision 59966)
@@ -475,6 +475,23 @@ class Set https://github.com/ruby/ruby/blob/trunk/lib/set.rb#L475
     @hash.eql?(o.instance_variable_get(:@hash))
   end
 
+  # Returns true if obj is a member of the set, and false otherwise.
+  #
+  # Used in case statements:
+  #
+  #   case :apple
+  #   when Set[:potato, :carrot] then 'vegetable'
+  #   when Set[:apple, :banana]  then 'fruit'
+  #   end
+  #   #=> "fruit"
+  #
+  # Or by itself:
+  #
+  #   Set[1, 2, 3] === 2 #=> true
+  #   Set[1, 2, 3] === 4 #=> false
+  #
+  alias === include?
+
   # Classifies the set by the return value of the given block and
   # returns a hash of {value => set of elements} pairs.  The block is
   # called once for each element of the set, passing the element as
Index: test/test_set.rb
===================================================================
--- test/test_set.rb	(revision 59965)
+++ test/test_set.rb	(revision 59966)
@@ -200,6 +200,23 @@ class TC_Set < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/test_set.rb#L200
     assert_equal(false, set.include?(true))
   end
 
+  def test_eqq
+    set = Set[1,2,3]
+
+    assert_equal(true, set === 1)
+    assert_equal(true, set === 2)
+    assert_equal(true, set === 3)
+    assert_equal(false, set === 0)
+    assert_equal(false, set === nil)
+
+    set = Set["1",nil,"2",nil,"0","1",false]
+    assert_equal(true, set === nil)
+    assert_equal(true, set === false)
+    assert_equal(true, set === "1")
+    assert_equal(false, set === 0)
+    assert_equal(false, set === true)
+  end
+
   def test_superset?
     set = Set[1,2,3]
 

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