36 lines
779 B
Rust
36 lines
779 B
Rust
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// run-pass
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// Test that even with prior inferred parameters, object lifetimes of objects after are still
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// valid.
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// pretty-expanded FIXME #23616
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#![allow(dead_code)]
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#![feature(generic_arg_infer)]
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trait Test {
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fn foo(&self) { }
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}
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struct Foo;
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impl Test for Foo {}
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struct SomeStruct<'a> {
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t: &'a dyn Test,
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u: &'a (dyn Test+'a),
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}
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fn a<'a, const N: usize>(_: [u8; N], t: &'a (dyn Test+'a), mut ss: SomeStruct<'a>) {
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ss.t = t;
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}
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fn b<'a, T>(_: T, t: &'a (dyn Test+'a), mut ss: SomeStruct<'a>) {
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ss.u = t;
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}
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fn main() {
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// Inside a function body, we can just infer both
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// lifetimes, to allow &'tmp (Display+'static).
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a::<_>([], &Foo as &dyn Test, SomeStruct{t:&Foo,u:&Foo});
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b::<_>(0u8, &Foo as &dyn Test, SomeStruct{t:&Foo,u:&Foo});
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}
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