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lcnr
31 lines
652 B
Rust
31 lines
652 B
Rust
//@ compile-flags: -O -Cdebug-assertions=on
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//@ build-pass
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// A regression test for #151791. Computing the layout of
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// `<AsOwned as ArchiveWith<'a>>::Archived` fails as the alias
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// is still rigid as the where-bound in scope shadows the impl.
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//
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// This previously caused an incorrect error during MIR optimizations.
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struct ArchivedString;
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pub trait ArchiveWith<'a> {
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type Archived;
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}
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struct AsOwned;
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impl ArchiveWith<'_> for AsOwned {
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type Archived = ArchivedString;
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}
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fn foo<'a>()
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where
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AsOwned: ArchiveWith<'a>,
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{
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let _ = unsafe { &*std::ptr::dangling::<<AsOwned as ArchiveWith<'a>>::Archived>() };
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}
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fn main() {
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foo();
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}
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