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Implement macro-based deref!() syntax for deref patterns

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Stop using `box PAT` syntax for deref patterns, as it's misleading and
also causes their semantics being tangled up.
This commit is contained in:
Michael Goulet
2024-03-20 16:53:50 -04:00
parent 2627e9f301
commit 2d633317f3
31 changed files with 123 additions and 35 deletions
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4
compiler/rustc_hir/src/intravisit.rs
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@@ -660,7 +660,9 @@ pub fn walk_pat<'v, V: Visitor<'v>>(visitor: &mut V, pattern: &'v Pat<'v>) -> V:
PatKind::Tuple(tuple_elements, _) => {
walk_list!(visitor, visit_pat, tuple_elements);
}
PatKind::Box(ref subpattern) | PatKind::Ref(ref subpattern, _) => {
PatKind::Box(ref subpattern)
| PatKind::Deref(ref subpattern)
| PatKind::Ref(ref subpattern, _) => {
try_visit!(visitor.visit_pat(subpattern));
}
PatKind::Binding(_, _hir_id, ident, ref optional_subpattern) => {