ruby.c: frozen-string-literal option

* ruby.c (process_options): add an option to enable/disable
  frozen-string-literal.  [Feature #8976]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51954 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 0 deletions

diff --git a/test/ruby/test_rubyoptions.rb b/test/ruby/test_rubyoptions.rb
index efdaeed237..927ad8ad8d 100644
--- a/test/ruby/test_rubyoptions.rb
+++ b/test/ruby/test_rubyoptions.rb
@@ -783,4 +783,19 @@ class TestRubyOptions < Test::Unit::TestCase
   def test_dump_insns_with_rflag
     assert_norun_with_rflag('--dump=insns')
   end
+
+  def test_frozen_string_literal
+    results = {}
+    %W[frozen_string_literal frozen_string_literal].each do |arg|
+      [["disable", "false"], ["enable", "true"]].each do |opt, exp|
+        key = "#{opt}=#{arg}"
+        begin
+          assert_in_out_err(["--disable=gems", "--#{key}"], 'p("foo".frozen?)', [exp])
+        rescue MiniTest::Assertion => e
+          results[key] = e
+        end
+      end
+    end
+    assert_empty(results)
+  end
 end