50 lines
882 B
Rust
50 lines
882 B
Rust
// run-pass
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use std::cell::Cell;
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#[derive(Debug)]
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struct Refs<'a> {
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v: Vec<Cell<Option<&'a C<'a>>>>,
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}
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#[derive(Debug)]
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struct C<'a> {
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refs: Refs<'a>,
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}
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impl<'a> Refs<'a> {
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fn new() -> Refs<'a> {
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Refs { v: Vec::new() }
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}
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}
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impl<'a> C<'a> {
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fn new() -> C<'a> {
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C { refs: Refs::new() }
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}
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}
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fn f() {
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let (mut c1, mut c2, mut c3);
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c1 = C::new();
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c2 = C::new();
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c3 = C::new();
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c1.refs.v.push(Cell::new(None));
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c1.refs.v.push(Cell::new(None));
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c2.refs.v.push(Cell::new(None));
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c2.refs.v.push(Cell::new(None));
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c3.refs.v.push(Cell::new(None));
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c3.refs.v.push(Cell::new(None));
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c1.refs.v[0].set(Some(&c2));
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c1.refs.v[1].set(Some(&c3));
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c2.refs.v[0].set(Some(&c2));
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c2.refs.v[1].set(Some(&c3));
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c3.refs.v[0].set(Some(&c1));
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c3.refs.v[1].set(Some(&c2));
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}
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fn main() {
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f();
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}
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