Make RubyVM::InstructionSequence.compile_file use same encoding as load

This switches the internal function from rb_parser_compile_file_path
to rb_parser_load_file, which is the same internal method that
Kernel#load uses.

Fixes [Bug #17308]

1 files changed, 16 insertions, 0 deletions

diff --git a/test/ruby/test_iseq.rb b/test/ruby/test_iseq.rb
index 51e3fd0391..3ec06b4042 100644
--- a/test/ruby/test_iseq.rb
+++ b/test/ruby/test_iseq.rb
@@ -98,6 +98,22 @@ class TestISeq < Test::Unit::TestCase
     assert_include(RubyVM::InstructionSequence.of(obj.method(name)).disasm, name)
   end
 
+  def test_compile_file_encoding
+    Tempfile.create(%w"test_iseq .rb") do |f|
+      f.puts "{ '\u00de' => 'Th', '\u00df' => 'ss', '\u00e0' => 'a' }"
+      f.close
+
+      previous_external = Encoding.default_external
+      Encoding.default_external = Encoding::US_ASCII
+      begin
+        load f.path
+        RubyVM::InstructionSequence.compile_file(f.path)
+      ensure
+        Encoding.default_external = previous_external
+      end
+    end
+  end
+
   LINE_BEFORE_METHOD = __LINE__
   def method_test_line_trace