contract A { function f() mod internal returns (uint[] storage) { } modifier mod() virtual { revert(); _; } } contract B is A { modifier mod() override { _; } function g() public { f()[0] = 42; } } // ---- // Warning 5740: (65-69): Unreachable code. // TypeError 3464: (49-63): This variable is of storage pointer type and can be returned without prior assignment, which would lead to undefined behaviour.