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