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17 lines
399 B
Rust
17 lines
399 B
Rust
// check-pass
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// known-bug: #25860
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// Should fail. The combination of variance and implied bounds for nested
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// references allows us to infer a longer lifetime than we can prove.
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static UNIT: &'static &'static () = &&();
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fn foo<'a, 'b, T>(_: &'a &'b (), v: &'b T) -> &'a T { v }
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fn bad<'a, T>(x: &'a T) -> &'static T {
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let f: fn(_, &'a T) -> &'static T = foo;
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f(UNIT, x)
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}
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fn main() {}
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