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62 lines
2.4 KiB
Rust
62 lines
2.4 KiB
Rust
#![feature(const_trait_impl)]
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#[const_trait]
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trait Trait {}
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// Regression test for issue #90052.
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fn non_const_function<T: [const] Trait>() {} //~ ERROR `[const]` is not allowed
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struct Struct<T: [const] Trait> { field: T } //~ ERROR `[const]` is not allowed here
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struct TupleStruct<T: [const] Trait>(T); //~ ERROR `[const]` is not allowed here
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struct UnitStruct<T: [const] Trait>; //~ ERROR `[const]` is not allowed here
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//~^ ERROR parameter `T` is never used
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enum Enum<T: [const] Trait> { Variant(T) } //~ ERROR `[const]` is not allowed here
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union Union<T: [const] Trait> { field: T } //~ ERROR `[const]` is not allowed here
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//~^ ERROR field must implement `Copy`
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type Type<T: [const] Trait> = T; //~ ERROR `[const]` is not allowed here
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const CONSTANT<T: [const] Trait>: () = (); //~ ERROR `[const]` is not allowed here
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//~^ ERROR generic const items are experimental
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trait NonConstTrait {
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type Type<T: [const] Trait>: [const] Trait;
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//~^ ERROR `[const]` is not allowed
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//~| ERROR `[const]` is not allowed
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fn non_const_function<T: [const] Trait>(); //~ ERROR `[const]` is not allowed
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const CONSTANT<T: [const] Trait>: (); //~ ERROR `[const]` is not allowed
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//~^ ERROR generic const items are experimental
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}
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impl NonConstTrait for () {
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type Type<T: [const] Trait> = (); //~ ERROR `[const]` is not allowed
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//~^ ERROR overflow evaluating the requirement `(): Trait`
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fn non_const_function<T: [const] Trait>() {} //~ ERROR `[const]` is not allowed
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const CONSTANT<T: [const] Trait>: () = (); //~ ERROR `[const]` is not allowed
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//~^ ERROR generic const items are experimental
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}
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struct Implementor;
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impl Implementor {
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type Type<T: [const] Trait> = (); //~ ERROR `[const]` is not allowed
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//~^ ERROR inherent associated types are unstable
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fn non_const_function<T: [const] Trait>() {} //~ ERROR `[const]` is not allowed
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const CONSTANT<T: [const] Trait>: () = (); //~ ERROR `[const]` is not allowed
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//~^ ERROR generic const items are experimental
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}
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// non-const traits
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trait Child0: [const] Trait {} //~ ERROR `[const]` is not allowed
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trait Child1 where Self: [const] Trait {} //~ ERROR `[const]` is not allowed
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// non-const impl
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impl<T: [const] Trait> Trait for T {} //~ ERROR `[const]` is not allowed
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// inherent impl (regression test for issue #117004)
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impl<T: [const] Trait> Struct<T> {} //~ ERROR `[const]` is not allowed
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fn main() {}
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