* encoding.c (rb_enc_set_index, rb_enc_associate_index): should

  check if frozen.
* parse.y (rb_intern3), ruby.c (process_options, ruby_script):
  defer freezing after associating encodings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32435 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/test/-ext-/string/test_enc_associate.rb b/test/-ext-/string/test_enc_associate.rb
new file mode 100644
index 0000000000..edddfb4316
--- /dev/null
+++ b/test/-ext-/string/test_enc_associate.rb
@@ -0,0 +1,12 @@
+require 'test/unit'
+require "-test-/string/string"
+
+class Test_StrEncAssociate < Test::Unit::TestCase
+  def test_frozen
+    s = Bug::String.new("abc")
+    s.force_encoding(Encoding::US_ASCII)
+    s.freeze
+    assert_raise(RuntimeError) {s.associate_encoding!(Encoding::US_ASCII)}
+    assert_raise(RuntimeError) {s.associate_encoding!(Encoding::UTF_8)}
+  end
+end