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Fix subslice capture in closure

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This commit is contained in:
clubby789 2023-03-27 22:23:10 +01:00
parent dd19135b04
commit f995003ec5
3 changed files with 41 additions and 3 deletions
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5
compiler/rustc_hir_typeck/src/upvar.rs
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@ -1893,14 +1893,13 @@ fn restrict_capture_precision(
for (i, proj) in place.projections.iter().enumerate() {
match proj.kind {
ProjectionKind::Index => {
// Arrays are completely captured, so we drop Index projections
ProjectionKind::Index | ProjectionKind::Subslice => {
// Arrays are completely captured, so we drop Index and Subslice projections
truncate_place_to_len_and_update_capture_kind(&mut place, &mut curr_mode, i);
return (place, curr_mode);
}
ProjectionKind::Deref => {}
ProjectionKind::Field(..) => {} // ignore
ProjectionKind::Subslice => {} // We never capture this
}
}