47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
// This is a non-regression test about differences in scopes computed by NLLs and `-Zpolonius=next`
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// found during the crater run for PR #117593.
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//
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// Live loans were computed too early compared to some of the liveness data coming from later passes
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// than `liveness::trace`, on some specific CFGs shapes: a variable was dead during tracing but its
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// regions were marked live later, and live loans were not recomputed at this point.
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// check-pass
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// revisions: nll polonius
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// [polonius] compile-flags: -Zpolonius=next
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// minimized from wavefc-cli-3.0.0
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fn repro1() {
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let a = 0;
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let closure = || {
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let _b = a;
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};
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let callback = if true { Some(closure) } else { None };
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do_it(callback);
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}
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fn do_it<F>(_: Option<F>)
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where
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F: Fn(),
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{
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}
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// minimized from simple-server-0.4.0
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fn repro2() {
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let mut a = &();
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let s = S(&mut a);
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let _ = if true { Some(s) } else { None };
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}
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struct S<'a>(&'a mut &'a ());
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// minimized from https://github.com/SHaaD94/AICup2022
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fn repro3() {
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let runner = ();
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let writer = debug_interface(&runner);
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let _ = if true { Some(writer) } else { None };
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}
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fn debug_interface(_: &()) -> &mut dyn std::io::Write {
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unimplemented!()
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}
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fn main() {}
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