| 7 | }; |
| 8 | |
| 9 | int main() { |
| 10 | |
| 11 | sol::state lua; |
| 12 | |
| 13 | /* |
| 14 | // AAAHHH BAD |
| 15 | // dangling pointer! |
| 16 | lua["my_func"] = []() -> my_type* { return new my_type(); }; |
| 17 | |
| 18 | // AAAHHH! |
| 19 | lua.set("something", new my_type()); |
| 20 | |
| 21 | // AAAAAAHHH!!! |
| 22 | lua["something_else"] = new my_type(); |
| 23 | */ |
| 24 | |
| 25 | // :ok: |
| 26 | lua["my_func0"] = []() -> std::unique_ptr<my_type> { |
| 27 | return std::make_unique<my_type>(); |
| 28 | }; |
| 29 | |
| 30 | // :ok: |
| 31 | lua["my_func1"] = []() -> std::shared_ptr<my_type> { |
| 32 | return std::make_shared<my_type>(); |
| 33 | }; |
| 34 | |
| 35 | // :ok: |
| 36 | lua["my_func2"] = []() -> my_type { return my_type(); }; |
| 37 | |
| 38 | // :ok: |
| 39 | lua.set( |
| 40 | "something", std::unique_ptr<my_type>(new my_type())); |
| 41 | |
| 42 | std::shared_ptr<my_type> my_shared |
| 43 | = std::make_shared<my_type>(); |
| 44 | // :ok: |
| 45 | lua.set("something_else", my_shared); |
| 46 | |
| 47 | // :ok: |
| 48 | auto my_unique = std::make_unique<my_type>(); |
| 49 | lua["other_thing"] = std::move(my_unique); |
| 50 | |
| 51 | // :ok: |
| 52 | lua["my_func5"] = []() -> my_type* { |
| 53 | static my_type mt; |
| 54 | return &mt; |
| 55 | }; |
| 56 | |
| 57 | // THIS IS STILL BAD DON'T DO IT AAAHHH BAD |
| 58 | // return a unique_ptr that's empty instead |
| 59 | // or be explicit! |
| 60 | lua["my_func6"] = []() -> my_type* { return nullptr; }; |
| 61 | |
| 62 | // :ok: |
| 63 | lua["my_func7"] |
| 64 | = []() -> std::nullptr_t { return nullptr; }; |
| 65 | |
| 66 | // :ok: |