1 files changed, 3 insertions, 1 deletions

diff --git a/src/yuescript/yue_parser.cpp b/src/yuescript/yue_parser.cpp
index 758865e..3f1b9a1 100644
--- a/src/yuescript/yue_parser.cpp
+++ b/src/yuescript/yue_parser.cpp
@@ -710,7 +710,9 @@ ParseInfo YueParser::parse(std::string_view codes, rule& r) {
         }
         try {
                 res.codes = std::make_unique<input>();
-                *(res.codes) = _converter.from_bytes(&codes.front(), &codes.back() + 1);
+                if (!codes.empty()) {
+                        *(res.codes) = _converter.from_bytes(&codes.front(), &codes.back() + 1);
+                }
         } catch (const std::range_error&) {
                 res.error = "invalid text encoding"sv;
                 return res;