bjoernager/rust
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add guard patterns to HIR and implement lowering

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This commit is contained in:
Max Niederman 2024-08-24 21:56:12 -07:00
parent d117b7f211
commit b579c36224
11 changed files with 40 additions and 7 deletions
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5
compiler/rustc_hir_analysis/src/check/region.rs
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@ -654,6 +654,7 @@ fn resolve_local<'tcx>(
/// | ( ..., P&, ... )
/// | ... "|" P& "|" ...
/// | box P&
/// | P& if ...
/// ```
fn is_binding_pat(pat: &hir::Pat<'_>) -> bool {
// Note that the code below looks for *explicit* refs only, that is, it won't
@ -694,7 +695,9 @@ fn resolve_local<'tcx>(
| PatKind::TupleStruct(_, subpats, _)
| PatKind::Tuple(subpats, _) => subpats.iter().any(|p| is_binding_pat(p)),
PatKind::Box(subpat) | PatKind::Deref(subpat) => is_binding_pat(subpat),
PatKind::Box(subpat) | PatKind::Deref(subpat) | PatKind::Guard(subpat, _) => {
is_binding_pat(subpat)
}
PatKind::Ref(_, _)
| PatKind::Binding(hir::BindingMode(hir::ByRef::No, _), ..)