bjoernager/rust
bjoernager/rust
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let-else: add hir::Let and type check it like a hir::Local

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unify typeck of hir::Local and hir::Let
remove extraneous pub(crate/super)
This commit is contained in:
Cormac Relf 2021-10-13 16:39:06 +11:00
parent a0a4c7d1e4
commit af2f0e6b7c
13 changed files with 160 additions and 92 deletions
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14
compiler/rustc_passes/src/liveness.rs
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@ -429,8 +429,8 @@ impl<'tcx> Visitor<'tcx> for IrMaps<'tcx> {
intravisit::walk_expr(self, expr);
}
hir::ExprKind::Let(ref pat, ..) => {
self.add_from_pat(pat);
hir::ExprKind::Let(let_expr) => {
self.add_from_pat(let_expr.pat);
intravisit::walk_expr(self, expr);
}
@ -856,9 +856,9 @@ impl<'a, 'tcx> Liveness<'a, 'tcx> {
})
}
hir::ExprKind::Let(ref pat, ref scrutinee, _) => {
let succ = self.propagate_through_expr(scrutinee, succ);
self.define_bindings_in_pat(pat, succ)
hir::ExprKind::Let(let_expr) => {
let succ = self.propagate_through_expr(let_expr.init, succ);
self.define_bindings_in_pat(let_expr.pat, succ)
}
// Note that labels have been resolved, so we don't need to look
@ -1401,8 +1401,8 @@ fn check_expr<'tcx>(this: &mut Liveness<'_, 'tcx>, expr: &'tcx Expr<'tcx>) {
}
}
hir::ExprKind::Let(ref pat, ..) => {
this.check_unused_vars_in_pat(pat, None, |_, _, _, _| {});
hir::ExprKind::Let(let_expr) => {
this.check_unused_vars_in_pat(let_expr.pat, None, |_, _, _, _| {});
}
// no correctness conditions related to liveness