ko1	2013-09-19 14:30:02 +0900 (Thu, 19 Sep 2013)

  New Revision: 42974

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=42974

  Log:
    * include/ruby/ruby.h: make Symbol objects frozen.
      [Feature #8906]
      I want to freeze this good day, too.
    * test/ruby/test_eval.rb: catch up this change.
    * test/ruby/test_symbol.rb: add a test to check frozen symbols.

  Modified files:
    trunk/ChangeLog
    trunk/include/ruby/ruby.h
    trunk/test/ruby/test_eval.rb
    trunk/test/ruby/test_symbol.rb
Index: include/ruby/ruby.h
===================================================================
--- include/ruby/ruby.h	(revision 42973)
+++ include/ruby/ruby.h	(revision 42974)
@@ -1247,7 +1247,7 @@ struct RBignum { https://github.com/ruby/ruby/blob/trunk/include/ruby/ruby.h#L1247
     RBASIC(x)->flags |= RBASIC(s)->flags & FL_TAINT; \
 } while (0)
 
-#define OBJ_FROZEN(x) (!!(FL_ABLE(x)?(RBASIC(x)->flags&(FL_FREEZE)):(FIXNUM_P(x)||FLONUM_P(x))))
+#define OBJ_FROZEN(x) (!!(FL_ABLE(x)?(RBASIC(x)->flags&(FL_FREEZE)):(FIXNUM_P(x)||FLONUM_P(x)||SYMBOL_P(x))))
 #define OBJ_FREEZE(x) FL_SET((x), FL_FREEZE)
 
 #if USE_RGENGC
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 42973)
+++ ChangeLog	(revision 42974)
@@ -1,3 +1,13 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Thu Sep 19 14:12:02 2013  Koichi Sasada  <ko1@a...>
+
+	* include/ruby/ruby.h: make Symbol objects frozen.
+	  [Feature #8906]
+	  I want to freeze this good day, too.
+
+	* test/ruby/test_eval.rb: catch up this change.
+
+	* test/ruby/test_symbol.rb: add a test to check frozen symbols.
+
 Thu Sep 19 09:11:33 2013  Eric Hodel  <drbrain@s...>
 
 	* NEWS:  Update for RDoc 4.1.0.preview.1 and RubyGems 2.2.0.preview.1
Index: test/ruby/test_eval.rb
===================================================================
--- test/ruby/test_eval.rb	(revision 42973)
+++ test/ruby/test_eval.rb	(revision 42974)
@@ -128,7 +128,7 @@ class TestEval < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_eval.rb#L128
   end
 
   def forall_TYPE
-    objects = [Object.new, [], nil, true, false, :sym] # TODO: check
+    objects = [Object.new, [], nil, true, false] # TODO: check
     objects.each do |obj|
       obj.instance_variable_set :@ivar, 12
       yield obj
Index: test/ruby/test_symbol.rb
===================================================================
--- test/ruby/test_symbol.rb	(revision 42973)
+++ test/ruby/test_symbol.rb	(revision 42974)
@@ -198,4 +198,12 @@ class TestSymbol < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_symbol.rb#L198
   def test_singleton_method
     assert_raise(TypeError) { a = :foo; def a.foo; end }
   end
+
+  def test_frozen_symbol
+    assert_equal(true, :foo.frozen?)
+    assert_equal(true, :each.frozen?)
+    assert_equal(true, :+.frozen?)
+    assert_equal(true, "foo#{Time.now.to_i}".to_sym.frozen?)
+    assert_equal(true, :foo.to_sym.frozen?)
+  end
 end

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