diff options
| -rw-r--r-- | src/script/lua_api/l_mapgen.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/script/lua_api/l_mapgen.cpp b/src/script/lua_api/l_mapgen.cpp index 6d3171df9..32eb7af84 100644 --- a/src/script/lua_api/l_mapgen.cpp +++ b/src/script/lua_api/l_mapgen.cpp @@ -325,14 +325,22 @@ void read_schematic_replacements(lua_State *L, int index, StringMap *replace_nam if (lua_istable(L, -1)) { // Old {{"x", "y"}, ...} format lua_rawgeti(L, -1, 1); + if (!lua_isstring(L, -1)) + throw LuaError("schematics: replace_from field is not a string"); replace_from = lua_tostring(L, -1); lua_pop(L, 1); lua_rawgeti(L, -1, 2); + if (!lua_isstring(L, -1)) + throw LuaError("schematics: replace_to field is not a string"); replace_to = lua_tostring(L, -1); lua_pop(L, 1); } else { // New {x = "y", ...} format + if (!lua_isstring(L, -2)) + throw LuaError("schematics: replace_from field is not a string"); replace_from = lua_tostring(L, -2); + if (!lua_isstring(L, -1)) + throw LuaError("schematics: replace_to field is not a string"); replace_to = lua_tostring(L, -1); } |