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After reviewing all tests with `?Sized` and discussing with lcnr, these tests seem like they could probably benefit from `#![rustc_no_implicit_bounds]`.
28 lines
599 B
Rust
28 lines
599 B
Rust
//@ compile-flags: -Znext-solver=coherence
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//@ check-pass
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#![feature(rustc_attrs)]
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#![rustc_no_implicit_bounds]
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// A regression test for trait-system-refactor-initiative#70.
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trait Trait {
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type Assoc;
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}
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struct W<T>(*mut T);
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impl<T> Trait for W<W<T>>
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where
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W<T>: Trait,
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{
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type Assoc = ();
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}
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trait NoOverlap {}
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impl<T: Trait<Assoc = u32>> NoOverlap for T {}
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// `Projection(<W<_> as Trait>::Assoc, u32)` should result in error even
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// though applying the impl results in overflow. This is necessary to match
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// the behavior of the old solver.
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impl<T> NoOverlap for W<T> {}
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fn main() {}
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