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-rw-r--r--compiler/rustc_passes/src/liveness.rs9
1 files changed, 3 insertions, 6 deletions
diff --git a/compiler/rustc_passes/src/liveness.rs b/compiler/rustc_passes/src/liveness.rs
index df5c8f53e..a8471ce3b 100644
--- a/compiler/rustc_passes/src/liveness.rs
+++ b/compiler/rustc_passes/src/liveness.rs
@@ -95,7 +95,7 @@ use rustc_hir::intravisit::{self, Visitor};
use rustc_hir::{Expr, HirId, HirIdMap, HirIdSet};
use rustc_index::vec::IndexVec;
use rustc_middle::ty::query::Providers;
-use rustc_middle::ty::{self, DefIdTree, RootVariableMinCaptureList, Ty, TyCtxt};
+use rustc_middle::ty::{self, RootVariableMinCaptureList, Ty, TyCtxt};
use rustc_session::lint;
use rustc_span::symbol::{kw, sym, Symbol};
use rustc_span::{BytePos, Span};
@@ -146,7 +146,7 @@ fn check_liveness(tcx: TyCtxt<'_>, def_id: DefId) {
// Don't run unused pass for #[derive()]
let parent = tcx.local_parent(local_def_id);
if let DefKind::Impl { .. } = tcx.def_kind(parent)
- && tcx.has_attr(parent.to_def_id(), sym::automatically_derived)
+ && tcx.has_attr(parent, sym::automatically_derived)
{
return;
}
@@ -473,7 +473,6 @@ impl<'tcx> Visitor<'tcx> for IrMaps<'tcx> {
| hir::ExprKind::Struct(..)
| hir::ExprKind::Repeat(..)
| hir::ExprKind::InlineAsm(..)
- | hir::ExprKind::Box(..)
| hir::ExprKind::Type(..)
| hir::ExprKind::Err(_)
| hir::ExprKind::Path(hir::QPath::TypeRelative(..))
@@ -1059,8 +1058,7 @@ impl<'a, 'tcx> Liveness<'a, 'tcx> {
self.propagate_through_expr(&l, r_succ)
}
- hir::ExprKind::Box(ref e)
- | hir::ExprKind::AddrOf(_, _, ref e)
+ hir::ExprKind::AddrOf(_, _, ref e)
| hir::ExprKind::Cast(ref e, _)
| hir::ExprKind::Type(ref e, _)
| hir::ExprKind::DropTemps(ref e)
@@ -1425,7 +1423,6 @@ fn check_expr<'tcx>(this: &mut Liveness<'_, 'tcx>, expr: &'tcx Expr<'tcx>) {
| hir::ExprKind::Closure { .. }
| hir::ExprKind::Path(_)
| hir::ExprKind::Yield(..)
- | hir::ExprKind::Box(..)
| hir::ExprKind::Type(..)
| hir::ExprKind::Err(_) => {}
}