fix gcc build.

2 files changed, 5 insertions, 1 deletions

diff --git a/src/yuescript/yue_compiler.cpp b/src/yuescript/yue_compiler.cpp
index 8574e6c..477815d 100644
--- a/src/yuescript/yue_compiler.cpp
+++ b/src/yuescript/yue_compiler.cpp
@@ -202,6 +202,7 @@ public:
                                                                 } else if (auto exportNode = stmt->content.as<Export_t>()) {
                                                                         if (exportNode->target.is<Macro_t>()) break;
                                                                 }
+                                                                [[fallthrough]];
                                                         default:
                                                                 throw CompileError("macro exporting module only accepts macro definition, macro importing and macro expansion in place"sv, stmt);
                                                                 break;
@@ -1951,6 +1952,7 @@ private:
                                         out.back().insert(0, preDefine);
                                         return;
                                 }
+                                break;
                         }
                         case id<TableBlock_t>(): {
                                 auto tableBlock = static_cast<TableBlock_t*>(value);
@@ -1961,6 +1963,7 @@ private:
                                         out.back().insert(0, preDefine);
                                         return;
                                 }
+                                break;
                         }
                 }
                 auto exp = ast_cast<Exp_t>(value);
@@ -3776,7 +3779,7 @@ private:
                         str_list temp;
                         for (auto node : nodes) {
                                 transformStatement(static_cast<Statement_t*>(node), temp);
-                                if (_parser.startWith<StatementSep_t>(temp.back())) {
+                                if (!temp.empty() && _parser.startWith<StatementSep_t>(temp.back())) {
                                         auto rit = ++temp.rbegin();
                                         if (rit != temp.rend() && !rit->empty()) {
                                                 auto index = std::string::npos;
diff --git a/src/yuescript/yuescript.cpp b/src/yuescript/yuescript.cpp
index 933c77d..22ba2a1 100644
--- a/src/yuescript/yuescript.cpp
+++ b/src/yuescript/yuescript.cpp
@@ -328,6 +328,7 @@ static int yuetoast(lua_State* L) {
                                                                 lua_pop(L, 1);
                                                                 break;
                                                         }
+                                                        [[fallthrough]];
                                                 }
                                                 default: {
                                                         auto len = lua_objlen(L, tableIndex);