25 lines
1.2 KiB
Rust
25 lines
1.2 KiB
Rust
//@ revisions: old new
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//@[old] edition:2015
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//@[new] edition:2021
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trait B { fn f(a: A) -> A; }
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//[new]~^ ERROR expected a type, found a trait
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//[new]~| ERROR expected a type, found a trait
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//[old]~^^^ ERROR the trait `A` cannot be made into an object
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//[old]~| WARN trait objects without an explicit `dyn` are deprecated
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//[old]~| WARN trait objects without an explicit `dyn` are deprecated
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//[old]~| WARN trait objects without an explicit `dyn` are deprecated
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//[old]~| WARN this is accepted in the current edition
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//[old]~| WARN this is accepted in the current edition
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//[old]~| WARN this is accepted in the current edition
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trait A { fn g(b: B) -> B; }
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//[new]~^ ERROR expected a type, found a trait
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//[new]~| ERROR expected a type, found a trait
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//[old]~^^^ ERROR the trait `B` cannot be made into an object
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//[old]~| WARN trait objects without an explicit `dyn` are deprecated
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//[old]~| WARN trait objects without an explicit `dyn` are deprecated
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//[old]~| WARN trait objects without an explicit `dyn` are deprecated
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//[old]~| WARN this is accepted in the current edition
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//[old]~| WARN this is accepted in the current edition
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//[old]~| WARN this is accepted in the current edition
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fn main() {}
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