44 lines
1.0 KiB
Rust
44 lines
1.0 KiB
Rust
//@ compile-flags: -Znext-solver
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#![feature(const_trait_impl, effects)]
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//~^ WARN the feature `effects` is incomplete
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#[const_trait] trait Bar {}
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impl const Bar for () {}
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#[const_trait] trait TildeConst {
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type Bar<T> where T: ~const Bar;
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fn foo<T>() where T: ~const Bar;
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}
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impl TildeConst for () {
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type Bar<T> = () where T: const Bar;
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//~^ ERROR impl has stricter requirements than trait
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fn foo<T>() where T: const Bar {}
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//~^ ERROR impl has stricter requirements than trait
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}
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#[const_trait] trait NeverConst {
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type Bar<T> where T: Bar;
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fn foo<T>() where T: Bar;
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}
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impl NeverConst for i32 {
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type Bar<T> = () where T: const Bar;
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//~^ ERROR impl has stricter requirements than trait
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fn foo<T>() where T: const Bar {}
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//~^ ERROR impl has stricter requirements than trait
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}
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impl const NeverConst for u32 {
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type Bar<T> = () where T: ~const Bar;
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//~^ ERROR impl has stricter requirements than trait
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fn foo<T>() where T: ~const Bar {}
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//~^ ERROR impl has stricter requirements than trait
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}
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fn main() {}
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