23 lines
680 B
Rust
23 lines
680 B
Rust
//@ check-pass
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// Ensure that we don't ICE when an alias that has escaping bound vars is
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// required to be live. This is because the code that allows us to deduce an
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// appropriate outlives bound for a given alias type (in this test, a
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// projection) does not handle aliases with escaping bound vars.
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// See <https://github.com/rust-lang/rust/issues/117455>.
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trait Foo {
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type Assoc<'a, 'b>: 'static;
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}
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struct MentionsLifetimeAndType<'a, T>(&'a (), T);
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fn foo<'a, 'b, T: Foo>(_: <T as Foo>::Assoc<'a, 'b>) {}
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fn test<'b, T: Foo>() {
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let y: MentionsLifetimeAndType<'_, for<'a> fn(<T as Foo>::Assoc<'a, 'b>)> =
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MentionsLifetimeAndType(&(), foo);
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}
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fn main() {}
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