39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
// Note: If you change this test, change 'trivial_bounds-feature-gate.rs' at the same time.
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// trivial_bounds
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// Tracking issue: https://github.com/rust-lang/rust/issues/48214
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#![feature(trivial_bounds)]
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#![deny(trivial_bounds)]
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use std::marker::{PhantomData, PhantomPinned};
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fn inner() {
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struct Inner(PhantomPinned);
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struct A(PhantomPinned);
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impl Unpin for A where PhantomPinned: Unpin {} //~ ERROR Unpin does not depend on any type or lifetime parameters
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struct B(Inner);
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impl Unpin for B where Inner: Unpin {} //~ ERROR Unpin does not depend on any type or lifetime parameters
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struct Wrapper<T>(T);
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impl<T> Unpin for Wrapper<T> where T: Unpin {}
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struct C(Inner);
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impl Unpin for C where Wrapper<Inner>: Unpin {} //~ ERROR Unpin does not depend on any type or lifetime parameters
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struct WrapperWithLifetime<'a, T>(PhantomData<&'a ()>, T);
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impl<T> Unpin for WrapperWithLifetime<'_, T> where T: Unpin {}
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struct D(Inner);
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impl<'a> Unpin for D where WrapperWithLifetime<'a, Inner>: Unpin {} // Ok
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}
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fn main() {}
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