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-rw-r--r--test/ruby/test_rubyvm.rb1
-rw-r--r--vm.c5
2 files changed, 4 insertions, 2 deletions
diff --git a/test/ruby/test_rubyvm.rb b/test/ruby/test_rubyvm.rb
index 613cfe2..580f3be 100644
--- a/test/ruby/test_rubyvm.rb
+++ b/test/ruby/test_rubyvm.rb
@@ -12,5 +12,6 @@ class TestRubyVM < Test::Unit::TestCase
def test_stat_unknown
assert_raise(ArgumentError){ RubyVM.stat(:unknown) }
+ assert_raise_with_message(ArgumentError, /\u{30eb 30d3 30fc}/) {RubyVM.stat(:"\u{30eb 30d3 30fc}")}
end
end
diff --git a/vm.c b/vm.c
index 5b4aa6f..1742cc5 100644
--- a/vm.c
+++ b/vm.c
@@ -173,8 +173,9 @@ vm_stat(int argc, VALUE *argv, VALUE self)
SET(class_serial, ruby_vm_class_serial);
#undef SET
- if (key != Qnil) /* matched key should return above */
- rb_raise(rb_eArgError, "unknown key: %s", RSTRING_PTR(rb_id2str(SYM2ID(key))));
+ if (!NIL_P(key)) { /* matched key should return above */
+ rb_raise(rb_eArgError, "unknown key: %"PRIsVALUE, rb_sym2str(key));
+ }
return hash;
}