Function typeerror

Plugins/UnLuaExtensions/LuaProtobuf/Source/src/pb.cpp:226–229

{ if (pb_addlength(b, len) == 0) luaL_error(L, "encode bytes fail"); }

static int typeerror(lua_State *L, int idx, const char *type) {
    lua_pushfstring(L, "%s expected, got %s", type, luaL_typename(L, idx));
    return luaL_argerror(L, idx, lua_tostring(L, -1));
}

static lua_Integer posrelat(lua_Integer pos, size_t len) {
    if (pos >= 0) return pos;