| // Make sure that trying to access `TryInto`, `TryFrom`, `FromIterator` in pre-2021 mentions |
| // Edition 2021 change. |
| //@ edition:2018 |
| |
| fn test() { |
| let _i: i16 = 0_i32.try_into().unwrap(); |
| //~^ ERROR no method named `try_into` found for type `i32` in the current scope |
| //~| NOTE 'std::convert::TryInto' is included in the prelude starting in Edition 2021 |
| |
| let _i: i16 = TryFrom::try_from(0_i32).unwrap(); |
| //~^ ERROR failed to resolve: use of undeclared type |
| //~| NOTE use of undeclared type |
| //~| NOTE 'std::convert::TryFrom' is included in the prelude starting in Edition 2021 |
| |
| let _i: i16 = TryInto::try_into(0_i32).unwrap(); |
| //~^ ERROR failed to resolve: use of undeclared type |
| //~| NOTE use of undeclared type |
| //~| NOTE 'std::convert::TryInto' is included in the prelude starting in Edition 2021 |
| |
| let _v: Vec<_> = FromIterator::from_iter(&[1]); |
| //~^ ERROR failed to resolve: use of undeclared type |
| //~| NOTE use of undeclared type |
| //~| NOTE 'std::iter::FromIterator' is included in the prelude starting in Edition 2021 |
| } |
| |
| fn main() { |
| test(); |
| } |
