hash.c: compare symbols by identities

* hash.c (rb_any_hash): Symbols are compared by the identities
  always.  [ruby-core:68767] [Bug #11035]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50182 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 19 insertions, 0 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index bfdfe5245b..7f278ad4d7 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -238,4 +238,23 @@ class TestSymbol < Test::Unit::TestCase
       200_000.times { |i| i.to_s.to_sym }
     end;
   end
+
+  def test_hash_redefinition
+    assert_separately([], <<-'end;')
+      bug11035 = '[ruby-core:68767] [Bug #11035]'
+      class Symbol
+        def hash
+          raise
+        end
+      end
+
+      h = {}
+      assert_nothing_raised(RuntimeError, bug11035) {
+        h[:foo] = 1
+      }
+      assert_nothing_raised(RuntimeError, bug11035) {
+        h['bar'.to_sym] = 2
+      }
+    end
+  end;
 end