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31 lines
564 B
Rust
31 lines
564 B
Rust
//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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//@ check-fail
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//
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// Make sure we can't trick the compiler by using a projection.
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trait Cat<'a> {}
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impl Cat<'_> for () {}
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trait Id {
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type Id: ?Sized;
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}
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impl<T: ?Sized> Id for T {
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type Id = T;
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}
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struct S<T: ?Sized> {
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tail: <T as Id>::Id,
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}
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fn m<'a>() {
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let unsend: *const dyn Cat<'a> = &();
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let _send = unsend as *const S<dyn Cat<'static>>;
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//~^ error: lifetime may not live long enough
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}
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fn main() {
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m();
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}
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