30 lines
565 B
Rust
30 lines
565 B
Rust
// check-pass
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#![feature(move_ref_pattern)]
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fn main() {
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struct U;
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fn accept_fn_once(_: impl FnOnce()) {}
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fn accept_fn_mut(_: impl FnMut()) {}
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fn accept_fn(_: impl Fn()) {}
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let mut tup = (U, U, U);
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let (ref _x0, _x1, ref mut _x2) = tup;
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let c1 = || {
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drop::<&U>(_x0);
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drop::<U>(_x1);
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drop::<&mut U>(_x2);
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};
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accept_fn_once(c1);
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let c2 = || {
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drop::<&U>(_x0);
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drop::<&mut U>(_x2);
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};
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accept_fn_mut(c2);
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let c3 = || {
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drop::<&U>(_x0);
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};
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accept_fn(c3);
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}
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