RUBY_SAFE_LEVEL_INVALID_P  604 include/ruby/ruby.h     __extension__(__builtin_choose_expr(RUBY_SAFE_LEVEL_INVALID_P(level), ruby_safe_level_2_##type(), (level)))
RUBY_SAFE_LEVEL_INVALID_P  613 include/ruby/ruby.h     (RUBY_SAFE_LEVEL_INVALID_P(level) ? ruby_safe_level_2_##type() : (level))