stdout_setter    8638 io.c               rb_define_hooked_variable("$stdout", &rb_stdout, 0, stdout_setter);
stdout_setter    8640 io.c               rb_define_hooked_variable("$stderr", &rb_stderr, 0, stdout_setter);
stdout_setter    8642 io.c               rb_define_hooked_variable("$>", &rb_stdout, 0, stdout_setter);