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32 lines
777 B
Rust
32 lines
777 B
Rust
// check-pass
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// rust-lang/rust#55552: The strategy pnkfelix landed in PR #55274
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// (for ensuring that NLL respects user-provided lifetime annotations)
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// did not handle the case where the ascribed type has some expliit
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// wildcards (`_`) mixed in, and it caused an internal compiler error
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// (ICE).
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//
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// This test is just checking that we do not ICE when such things
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// occur.
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struct X;
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struct Y;
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struct Z;
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struct Pair { x: X, y: Y }
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pub fn join<A, B, RA, RB>(oper_a: A, oper_b: B) -> (RA, RB)
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where A: FnOnce() -> RA + Send,
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B: FnOnce() -> RB + Send,
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RA: Send,
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RB: Send
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{
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(oper_a(), oper_b())
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}
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fn main() {
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let ((_x, _y), _z): (_, Z) = join(|| (X, Y), || Z);
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let (Pair { x: _x, y: _y }, Z): (_, Z) = join(|| Pair { x: X, y: Y }, || Z);
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}
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