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use hir::Let in hir::Guard

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This commit is contained in:
SparrowLii
2022-05-09 20:35:58 +08:00
parent 4799baa70d
commit 5251a80c0a
13 changed files with 41 additions and 45 deletions
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10
compiler/rustc_passes/src/liveness.rs
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@@ -373,8 +373,8 @@ impl<'tcx> Visitor<'tcx> for IrMaps<'tcx> {
fn visit_arm(&mut self, arm: &'tcx hir::Arm<'tcx>) {
self.add_from_pat(&arm.pat);
if let Some(hir::Guard::IfLet(ref pat, _)) = arm.guard {
self.add_from_pat(pat);
if let Some(hir::Guard::IfLet(ref let_expr)) = arm.guard {
self.add_from_pat(let_expr.pat);
}
intravisit::walk_arm(self, arm);
}
@@ -914,9 +914,9 @@ impl<'a, 'tcx> Liveness<'a, 'tcx> {
let guard_succ = arm.guard.as_ref().map_or(body_succ, |g| match g {
hir::Guard::If(e) => self.propagate_through_expr(e, body_succ),
hir::Guard::IfLet(pat, e) => {
let let_bind = self.define_bindings_in_pat(pat, body_succ);
self.propagate_through_expr(e, let_bind)
hir::Guard::IfLet(let_expr) => {
let let_bind = self.define_bindings_in_pat(let_expr.pat, body_succ);
self.propagate_through_expr(let_expr.init, let_bind)
}
});
let arm_succ = self.define_bindings_in_pat(&arm.pat, guard_succ);