mirror of https://github.com/rust-lang/rust
19 lines
495 B
Rust
19 lines
495 B
Rust
//@ run-pass
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#![allow(dead_code)]
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// Test an edge case in region inference: the lifetime of the borrow
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// of `*x` must be extended to at least 'a.
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//@ pretty-expanded FIXME #23616
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fn foo<'a,'b>(x: &'a &'b mut isize) -> &'a isize {
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let y = &*x; // should be inferred to have type &'a &'b mut isize...
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// ...because if we inferred, say, &'x &'b mut isize where 'x <= 'a,
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// this reborrow would be illegal:
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&**y
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}
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pub fn main() {
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/* Just want to know that it compiles. */
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}
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