diff options
Diffstat (limited to 'compiler/rustc_lint/src/unused.rs')
| -rw-r--r-- | compiler/rustc_lint/src/unused.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 355855b8e2b..0ae91ac28a7 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -251,6 +251,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { /// The root of the normal must_use lint with an optional message. Def(Span, DefId, Option<Symbol>), Boxed(Box<Self>), + Pinned(Box<Self>), Opaque(Box<Self>), TraitObject(Box<Self>), TupleElement(Vec<(usize, Self)>), @@ -284,6 +285,11 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { is_ty_must_use(cx, boxed_ty, expr, span) .map(|inner| MustUsePath::Boxed(Box::new(inner))) } + ty::Adt(def, args) if cx.tcx.lang_items().pin_type() == Some(def.did()) => { + let pinned_ty = args.type_at(0); + is_ty_must_use(cx, pinned_ty, expr, span) + .map(|inner| MustUsePath::Pinned(Box::new(inner))) + } ty::Adt(def, _) => is_def_must_use(cx, def.did(), span), ty::Alias(ty::Opaque, ty::AliasTy { def_id: def, .. }) => { elaborate( @@ -425,6 +431,18 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { expr_is_from_block, ); } + MustUsePath::Pinned(path) => { + let descr_pre = &format!("{descr_pre}pinned "); + emit_must_use_untranslated( + cx, + path, + descr_pre, + descr_post, + plural_len, + true, + expr_is_from_block, + ); + } MustUsePath::Opaque(path) => { let descr_pre = &format!("{descr_pre}implementer{plural_suffix} of "); emit_must_use_untranslated( |