From bce78102c31c2e71313af1e8119eb882dea35fad Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Wed, 13 Mar 2024 02:13:51 +0000 Subject: [PATCH] Account for unops when suggesting cloning --- .../src/diagnostics/conflict_errors.rs | 43 +++++++++++-------- .../associated-types-outlives.stderr | 5 ++- tests/ui/binop/binop-move-semantics.stderr | 5 ++- tests/ui/borrowck/borrow-tuple-fields.stderr | 10 +++-- .../borrowck-bad-nested-calls-move.stderr | 10 +++-- .../borrowck-field-sensitivity.stderr | 10 +++-- .../borrowck-loan-blocks-move-cc.stderr | 10 +++-- .../borrowck/borrowck-loan-blocks-move.stderr | 5 ++- ...-move-from-subpath-of-borrowed-path.stderr | 5 ++- .../borrowck-move-mut-base-ptr.stderr | 5 ++- .../borrowck-move-subcomponent.stderr | 5 ++- .../borrowck-multiple-captures.stderr | 15 ++++--- tests/ui/borrowck/borrowck-unary-move.stderr | 5 ++- tests/ui/borrowck/clone-on-ref.fixed | 4 +- tests/ui/borrowck/clone-on-ref.stderr | 10 +++-- tests/ui/btreemap/btreemap_dropck.stderr | 5 ++- tests/ui/error-codes/E0504.stderr | 5 ++- tests/ui/error-codes/E0505.stderr | 5 ++- ...ied-bounds-unnorm-associated-type-4.stderr | 5 ++- ...ied-bounds-unnorm-associated-type-5.stderr | 5 ++- ...plied-bounds-unnorm-associated-type.stderr | 5 ++- tests/ui/nll/closure-access-spans.stderr | 5 ++- .../borrowck-move-ref-pattern.stderr | 5 ++- .../span/send-is-not-static-std-sync.stderr | 15 ++++--- .../suggestions/borrow-for-loop-head.stderr | 5 ++- tests/ui/unop-move-semantics.stderr | 5 ++- tests/ui/variance/variance-issue-20533.stderr | 15 ++++--- 27 files changed, 134 insertions(+), 93 deletions(-) diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 8249d5142ed..4bbeadbae70 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -1034,27 +1034,32 @@ fn suggest_cloning_inner( } else { ".clone()".to_owned() }; - if let Some(clone_trait_def) = tcx.lang_items().clone_trait() - && self - .infcx - .type_implements_trait(clone_trait_def, [ty], self.param_env) - .must_apply_modulo_regions() + let mut sugg = Vec::with_capacity(2); + let mut inner_expr = expr; + while let hir::ExprKind::AddrOf(.., inner) | hir::ExprKind::Unary(hir::UnOp::Deref, inner) = + &inner_expr.kind { - let msg = if let ty::Adt(def, _) = ty.kind() - && [tcx.get_diagnostic_item(sym::Arc), tcx.get_diagnostic_item(sym::Rc)] - .contains(&Some(def.did())) - { - "clone the value to increment its reference count" - } else { - "consider cloning the value if the performance cost is acceptable" - }; - err.span_suggestion_verbose( - span.shrink_to_hi(), - msg, - suggestion, - Applicability::MachineApplicable, - ); + inner_expr = inner; } + if inner_expr.span.lo() != expr.span.lo() { + sugg.push((expr.span.with_hi(inner_expr.span.lo()), String::new())); + } + let span = if inner_expr.span.hi() != expr.span.hi() { + // Account for `(*x)` to suggest `x.clone()`. + expr.span.with_lo(inner_expr.span.hi()) + } else { + span.shrink_to_hi() + }; + sugg.push((span, suggestion)); + let msg = if let ty::Adt(def, _) = ty.kind() + && [tcx.get_diagnostic_item(sym::Arc), tcx.get_diagnostic_item(sym::Rc)] + .contains(&Some(def.did())) + { + "clone the value to increment its reference count" + } else { + "consider cloning the value if the performance cost is acceptable" + }; + err.multipart_suggestion_verbose(msg, sugg, Applicability::MachineApplicable); } fn suggest_adding_bounds(&self, err: &mut Diag<'_>, ty: Ty<'tcx>, def_id: DefId, span: Span) { diff --git a/tests/ui/associated-types/associated-types-outlives.stderr b/tests/ui/associated-types/associated-types-outlives.stderr index dcd05ba9c2e..4a496b5fa87 100644 --- a/tests/ui/associated-types/associated-types-outlives.stderr +++ b/tests/ui/associated-types/associated-types-outlives.stderr @@ -13,8 +13,9 @@ LL | return f(y); | help: consider cloning the value if the performance cost is acceptable | -LL | 's: loop { y = denormalise(&x.clone()); break } - | ++++++++ +LL - 's: loop { y = denormalise(&x); break } +LL + 's: loop { y = denormalise(x.clone()); break } + | error: aborting due to 1 previous error diff --git a/tests/ui/binop/binop-move-semantics.stderr b/tests/ui/binop/binop-move-semantics.stderr index 06dd84c3b9a..219bfeaae06 100644 --- a/tests/ui/binop/binop-move-semantics.stderr +++ b/tests/ui/binop/binop-move-semantics.stderr @@ -54,8 +54,9 @@ LL | use_mut(n); use_imm(m); | help: consider cloning the value if the performance cost is acceptable | -LL | let m = &x.clone(); - | ++++++++ +LL - let m = &x; +LL + let m = x.clone(); + | error[E0505]: cannot move out of `y` because it is borrowed --> $DIR/binop-move-semantics.rs:23:5 diff --git a/tests/ui/borrowck/borrow-tuple-fields.stderr b/tests/ui/borrowck/borrow-tuple-fields.stderr index 277c335cfcc..8ea7a9a4989 100644 --- a/tests/ui/borrowck/borrow-tuple-fields.stderr +++ b/tests/ui/borrowck/borrow-tuple-fields.stderr @@ -13,8 +13,9 @@ LL | r.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let r = &x.0.clone(); - | ++++++++ +LL - let r = &x.0; +LL + let r = x.0.clone(); + | error[E0502]: cannot borrow `x.0` as mutable because it is also borrowed as immutable --> $DIR/borrow-tuple-fields.rs:18:13 @@ -50,8 +51,9 @@ LL | r.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let r = &x.0.clone(); - | ++++++++ +LL - let r = &x.0; +LL + let r = x.0.clone(); + | error[E0502]: cannot borrow `x.0` as mutable because it is also borrowed as immutable --> $DIR/borrow-tuple-fields.rs:33:13 diff --git a/tests/ui/borrowck/borrowck-bad-nested-calls-move.stderr b/tests/ui/borrowck/borrowck-bad-nested-calls-move.stderr index eb5e2fa89f8..b96949fbb0e 100644 --- a/tests/ui/borrowck/borrowck-bad-nested-calls-move.stderr +++ b/tests/ui/borrowck/borrowck-bad-nested-calls-move.stderr @@ -13,8 +13,9 @@ LL | a); | help: consider cloning the value if the performance cost is acceptable | -LL | &*a.clone(), - | ++++++++ +LL - &*a, +LL + a.clone(), + | error[E0505]: cannot move out of `a` because it is borrowed --> $DIR/borrowck-bad-nested-calls-move.rs:32:9 @@ -30,8 +31,9 @@ LL | a); | help: consider cloning the value if the performance cost is acceptable | -LL | &*a.clone(), - | ++++++++ +LL - &*a, +LL + a.clone(), + | error: aborting due to 2 previous errors diff --git a/tests/ui/borrowck/borrowck-field-sensitivity.stderr b/tests/ui/borrowck/borrowck-field-sensitivity.stderr index b30dd144a4d..ea552ff7820 100644 --- a/tests/ui/borrowck/borrowck-field-sensitivity.stderr +++ b/tests/ui/borrowck/borrowck-field-sensitivity.stderr @@ -52,8 +52,9 @@ LL | drop(**p); | help: consider cloning the value if the performance cost is acceptable | -LL | let p = &x.b.clone(); - | ++++++++ +LL - let p = &x.b; +LL + let p = x.b.clone(); + | error[E0505]: cannot move out of `x.b` because it is borrowed --> $DIR/borrowck-field-sensitivity.rs:41:14 @@ -69,8 +70,9 @@ LL | drop(**p); | help: consider cloning the value if the performance cost is acceptable | -LL | let p = &x.b.clone(); - | ++++++++ +LL - let p = &x.b; +LL + let p = x.b.clone(); + | error[E0499]: cannot borrow `x.a` as mutable more than once at a time --> $DIR/borrowck-field-sensitivity.rs:48:13 diff --git a/tests/ui/borrowck/borrowck-loan-blocks-move-cc.stderr b/tests/ui/borrowck/borrowck-loan-blocks-move-cc.stderr index d9af5cf7d12..370ae058f44 100644 --- a/tests/ui/borrowck/borrowck-loan-blocks-move-cc.stderr +++ b/tests/ui/borrowck/borrowck-loan-blocks-move-cc.stderr @@ -16,8 +16,9 @@ LL | w.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let w = &v.clone(); - | ++++++++ +LL - let w = &v; +LL + let w = v.clone(); + | error[E0505]: cannot move out of `v` because it is borrowed --> $DIR/borrowck-loan-blocks-move-cc.rs:24:19 @@ -37,8 +38,9 @@ LL | w.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let w = &v.clone(); - | ++++++++ +LL - let w = &v; +LL + let w = v.clone(); + | error: aborting due to 2 previous errors diff --git a/tests/ui/borrowck/borrowck-loan-blocks-move.stderr b/tests/ui/borrowck/borrowck-loan-blocks-move.stderr index 1698035f20f..8a8005dbb83 100644 --- a/tests/ui/borrowck/borrowck-loan-blocks-move.stderr +++ b/tests/ui/borrowck/borrowck-loan-blocks-move.stderr @@ -12,8 +12,9 @@ LL | w.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let w = &v.clone(); - | ++++++++ +LL - let w = &v; +LL + let w = v.clone(); + | error: aborting due to 1 previous error diff --git a/tests/ui/borrowck/borrowck-move-from-subpath-of-borrowed-path.stderr b/tests/ui/borrowck/borrowck-move-from-subpath-of-borrowed-path.stderr index b78c374c456..a23a203d999 100644 --- a/tests/ui/borrowck/borrowck-move-from-subpath-of-borrowed-path.stderr +++ b/tests/ui/borrowck/borrowck-move-from-subpath-of-borrowed-path.stderr @@ -13,8 +13,9 @@ LL | b.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let b = &a.clone(); - | ++++++++ +LL - let b = &a; +LL + let b = a.clone(); + | error: aborting due to 1 previous error diff --git a/tests/ui/borrowck/borrowck-move-mut-base-ptr.stderr b/tests/ui/borrowck/borrowck-move-mut-base-ptr.stderr index 3e540a5dc98..acf426906c3 100644 --- a/tests/ui/borrowck/borrowck-move-mut-base-ptr.stderr +++ b/tests/ui/borrowck/borrowck-move-mut-base-ptr.stderr @@ -13,8 +13,9 @@ LL | p.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let p: &isize = &*t0.clone(); // Freezes `*t0` - | ++++++++ +LL - let p: &isize = &*t0; // Freezes `*t0` +LL + let p: &isize = t0.clone(); // Freezes `*t0` + | error: aborting due to 1 previous error diff --git a/tests/ui/borrowck/borrowck-move-subcomponent.stderr b/tests/ui/borrowck/borrowck-move-subcomponent.stderr index 5eb02ee2be9..1e4d94920f4 100644 --- a/tests/ui/borrowck/borrowck-move-subcomponent.stderr +++ b/tests/ui/borrowck/borrowck-move-subcomponent.stderr @@ -12,8 +12,9 @@ LL | f(pb); | help: consider cloning the value if the performance cost is acceptable | -LL | let pb = &a.clone(); - | ++++++++ +LL - let pb = &a; +LL + let pb = a.clone(); + | error: aborting due to 1 previous error diff --git a/tests/ui/borrowck/borrowck-multiple-captures.stderr b/tests/ui/borrowck/borrowck-multiple-captures.stderr index 01b648ea647..fdac4c27cee 100644 --- a/tests/ui/borrowck/borrowck-multiple-captures.stderr +++ b/tests/ui/borrowck/borrowck-multiple-captures.stderr @@ -17,8 +17,9 @@ LL | borrow(&*p1); | help: consider cloning the value if the performance cost is acceptable | -LL | let p1 = &x1.clone(); - | ++++++++ +LL - let p1 = &x1; +LL + let p1 = x1.clone(); + | error[E0505]: cannot move out of `x2` because it is borrowed --> $DIR/borrowck-multiple-captures.rs:12:19 @@ -38,8 +39,9 @@ LL | borrow(&*p2); | help: consider cloning the value if the performance cost is acceptable | -LL | let p2 = &x2.clone(); - | ++++++++ +LL - let p2 = &x2; +LL + let p2 = x2.clone(); + | error[E0382]: use of moved value: `x1` --> $DIR/borrowck-multiple-captures.rs:27:19 @@ -106,8 +108,9 @@ LL | borrow(&*p); | help: consider cloning the value if the performance cost is acceptable | -LL | let p = &x.clone(); - | ++++++++ +LL - let p = &x; +LL + let p = x.clone(); + | error[E0382]: use of moved value: `x` --> $DIR/borrowck-multiple-captures.rs:52:14 diff --git a/tests/ui/borrowck/borrowck-unary-move.stderr b/tests/ui/borrowck/borrowck-unary-move.stderr index a4118b3d1a3..598ecb53778 100644 --- a/tests/ui/borrowck/borrowck-unary-move.stderr +++ b/tests/ui/borrowck/borrowck-unary-move.stderr @@ -12,8 +12,9 @@ LL | *y | help: consider cloning the value if the performance cost is acceptable | -LL | let y = &*x.clone(); - | ++++++++ +LL - let y = &*x; +LL + let y = x.clone(); + | error: aborting due to 1 previous error diff --git a/tests/ui/borrowck/clone-on-ref.fixed b/tests/ui/borrowck/clone-on-ref.fixed index 58339919696..539ecd0b32c 100644 --- a/tests/ui/borrowck/clone-on-ref.fixed +++ b/tests/ui/borrowck/clone-on-ref.fixed @@ -9,7 +9,7 @@ fn foo(list: &mut Vec) { drop(cloned_items); } fn bar(x: T) { - let a = &x.clone(); + let a = x.clone(); let b = a.clone(); drop(x); //~^ ERROR cannot move out of `x` because it is borrowed @@ -19,7 +19,7 @@ fn bar(x: T) { #[derive(Clone)] struct A; fn qux(x: A) { - let a = &x.clone(); + let a = x.clone(); let b = a.clone(); drop(x); //~^ ERROR cannot move out of `x` because it is borrowed diff --git a/tests/ui/borrowck/clone-on-ref.stderr b/tests/ui/borrowck/clone-on-ref.stderr index 732a9370fa7..5ee56edd7b5 100644 --- a/tests/ui/borrowck/clone-on-ref.stderr +++ b/tests/ui/borrowck/clone-on-ref.stderr @@ -38,8 +38,9 @@ LL | fn bar(x: T) { | +++++++ help: consider cloning the value if the performance cost is acceptable | -LL | let a = &x.clone(); - | ++++++++ +LL - let a = &x; +LL + let a = x.clone(); + | error[E0505]: cannot move out of `x` because it is borrowed --> $DIR/clone-on-ref.rs:23:10 @@ -63,8 +64,9 @@ LL | struct A; | help: consider cloning the value if the performance cost is acceptable | -LL | let a = &x.clone(); - | ++++++++ +LL - let a = &x; +LL + let a = x.clone(); + | error: aborting due to 3 previous errors diff --git a/tests/ui/btreemap/btreemap_dropck.stderr b/tests/ui/btreemap/btreemap_dropck.stderr index e8f14552af2..873f8cf9a01 100644 --- a/tests/ui/btreemap/btreemap_dropck.stderr +++ b/tests/ui/btreemap/btreemap_dropck.stderr @@ -12,8 +12,9 @@ LL | } | help: consider cloning the value if the performance cost is acceptable | -LL | let _map = BTreeMap::from_iter([((), PrintOnDrop(&s.clone()))]); - | ++++++++ +LL - let _map = BTreeMap::from_iter([((), PrintOnDrop(&s))]); +LL + let _map = BTreeMap::from_iter([((), PrintOnDrop(s.clone()))]); + | error: aborting due to 1 previous error diff --git a/tests/ui/error-codes/E0504.stderr b/tests/ui/error-codes/E0504.stderr index 9759e81a2c7..47f1218d2fa 100644 --- a/tests/ui/error-codes/E0504.stderr +++ b/tests/ui/error-codes/E0504.stderr @@ -16,8 +16,9 @@ LL | println!("main function: {}", fancy_ref.num); | help: consider cloning the value if the performance cost is acceptable | -LL | let fancy_ref = &fancy_num.clone(); - | ++++++++ +LL - let fancy_ref = &fancy_num; +LL + let fancy_ref = fancy_num.clone(); + | error: aborting due to 1 previous error diff --git a/tests/ui/error-codes/E0505.stderr b/tests/ui/error-codes/E0505.stderr index 6808943796c..7e99d5252bd 100644 --- a/tests/ui/error-codes/E0505.stderr +++ b/tests/ui/error-codes/E0505.stderr @@ -13,8 +13,9 @@ LL | _ref_to_val.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let _ref_to_val: &Value = &x.clone(); - | ++++++++ +LL - let _ref_to_val: &Value = &x; +LL + let _ref_to_val: &Value = x.clone(); + | error: aborting due to 1 previous error diff --git a/tests/ui/fn/implied-bounds-unnorm-associated-type-4.stderr b/tests/ui/fn/implied-bounds-unnorm-associated-type-4.stderr index 4e64ed6f482..b8ec2e3b7e7 100644 --- a/tests/ui/fn/implied-bounds-unnorm-associated-type-4.stderr +++ b/tests/ui/fn/implied-bounds-unnorm-associated-type-4.stderr @@ -13,8 +13,9 @@ LL | println!("{}", y); | help: consider cloning the value if the performance cost is acceptable | -LL | let y = f(&x.clone(), ()); - | ++++++++ +LL - let y = f(&x, ()); +LL + let y = f(x.clone(), ()); + | error: aborting due to 1 previous error diff --git a/tests/ui/fn/implied-bounds-unnorm-associated-type-5.stderr b/tests/ui/fn/implied-bounds-unnorm-associated-type-5.stderr index b898df0835c..382ab8636a2 100644 --- a/tests/ui/fn/implied-bounds-unnorm-associated-type-5.stderr +++ b/tests/ui/fn/implied-bounds-unnorm-associated-type-5.stderr @@ -30,8 +30,9 @@ LL | println!("{}", y); | help: consider cloning the value if the performance cost is acceptable | -LL | let y = f(&x.clone(), ()); - | ++++++++ +LL - let y = f(&x, ()); +LL + let y = f(x.clone(), ()); + | error: aborting due to 2 previous errors diff --git a/tests/ui/fn/implied-bounds-unnorm-associated-type.stderr b/tests/ui/fn/implied-bounds-unnorm-associated-type.stderr index 2a7431305fe..ce97d8527e8 100644 --- a/tests/ui/fn/implied-bounds-unnorm-associated-type.stderr +++ b/tests/ui/fn/implied-bounds-unnorm-associated-type.stderr @@ -13,8 +13,9 @@ LL | println!("{}", y); | help: consider cloning the value if the performance cost is acceptable | -LL | let y = f(&x.clone(), ()); - | ++++++++ +LL - let y = f(&x, ()); +LL + let y = f(x.clone(), ()); + | error: aborting due to 1 previous error diff --git a/tests/ui/nll/closure-access-spans.stderr b/tests/ui/nll/closure-access-spans.stderr index a8024a8c20b..7dc8acf8499 100644 --- a/tests/ui/nll/closure-access-spans.stderr +++ b/tests/ui/nll/closure-access-spans.stderr @@ -60,8 +60,9 @@ LL | r.use_ref(); | help: consider cloning the value if the performance cost is acceptable | -LL | let r = &x.clone(); - | ++++++++ +LL - let r = &x; +LL + let r = x.clone(); + | error[E0382]: borrow of moved value: `x` --> $DIR/closure-access-spans.rs:35:5 diff --git a/tests/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr b/tests/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr index 62896e1fd03..124731d01f3 100644 --- a/tests/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr +++ b/tests/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr @@ -13,8 +13,9 @@ LL | drop(hold_all); | help: consider cloning the value if the performance cost is acceptable | -LL | let hold_all = &arr.clone(); - | ++++++++ +LL - let hold_all = &arr; +LL + let hold_all = arr.clone(); + | error[E0384]: cannot assign twice to immutable variable `_x1` --> $DIR/borrowck-move-ref-pattern.rs:9:5 diff --git a/tests/ui/span/send-is-not-static-std-sync.stderr b/tests/ui/span/send-is-not-static-std-sync.stderr index 1f4462f4fe7..50b8ffe0114 100644 --- a/tests/ui/span/send-is-not-static-std-sync.stderr +++ b/tests/ui/span/send-is-not-static-std-sync.stderr @@ -14,8 +14,9 @@ LL | *lock.lock().unwrap() = &z; | help: consider cloning the value if the performance cost is acceptable | -LL | *lock.lock().unwrap() = &*y.clone(); - | ++++++++ +LL - *lock.lock().unwrap() = &*y; +LL + *lock.lock().unwrap() = y.clone(); + | error[E0597]: `z` does not live long enough --> $DIR/send-is-not-static-std-sync.rs:16:33 @@ -46,8 +47,9 @@ LL | *lock.write().unwrap() = &z; | help: consider cloning the value if the performance cost is acceptable | -LL | *lock.write().unwrap() = &*y.clone(); - | ++++++++ +LL - *lock.write().unwrap() = &*y; +LL + *lock.write().unwrap() = y.clone(); + | error[E0597]: `z` does not live long enough --> $DIR/send-is-not-static-std-sync.rs:30:34 @@ -78,8 +80,9 @@ LL | tx.send(&z).unwrap(); | help: consider cloning the value if the performance cost is acceptable | -LL | tx.send(&*y.clone()); - | ++++++++ +LL - tx.send(&*y); +LL + tx.send(y.clone()); + | error[E0597]: `z` does not live long enough --> $DIR/send-is-not-static-std-sync.rs:46:17 diff --git a/tests/ui/suggestions/borrow-for-loop-head.stderr b/tests/ui/suggestions/borrow-for-loop-head.stderr index 55fcb44168c..a8de9986c31 100644 --- a/tests/ui/suggestions/borrow-for-loop-head.stderr +++ b/tests/ui/suggestions/borrow-for-loop-head.stderr @@ -10,8 +10,9 @@ LL | for j in a { | help: consider cloning the value if the performance cost is acceptable | -LL | for i in &a.clone() { - | ++++++++ +LL - for i in &a { +LL + for i in a.clone() { + | error[E0382]: use of moved value: `a` --> $DIR/borrow-for-loop-head.rs:4:18 diff --git a/tests/ui/unop-move-semantics.stderr b/tests/ui/unop-move-semantics.stderr index a6549d84a8a..3c887f25ae8 100644 --- a/tests/ui/unop-move-semantics.stderr +++ b/tests/ui/unop-move-semantics.stderr @@ -36,8 +36,9 @@ LL | use_mut(n); use_imm(m); | help: consider cloning the value if the performance cost is acceptable | -LL | let m = &x.clone(); - | ++++++++ +LL - let m = &x; +LL + let m = x.clone(); + | error[E0505]: cannot move out of `y` because it is borrowed --> $DIR/unop-move-semantics.rs:17:6 diff --git a/tests/ui/variance/variance-issue-20533.stderr b/tests/ui/variance/variance-issue-20533.stderr index 7fed947972f..bee9b802135 100644 --- a/tests/ui/variance/variance-issue-20533.stderr +++ b/tests/ui/variance/variance-issue-20533.stderr @@ -12,8 +12,9 @@ LL | drop(x); | help: consider cloning the value if the performance cost is acceptable | -LL | let x = foo(&a.clone()); - | ++++++++ +LL - let x = foo(&a); +LL + let x = foo(a.clone()); + | error[E0505]: cannot move out of `a` because it is borrowed --> $DIR/variance-issue-20533.rs:34:14 @@ -29,8 +30,9 @@ LL | drop(x); | help: consider cloning the value if the performance cost is acceptable | -LL | let x = bar(&a.clone()); - | ++++++++ +LL - let x = bar(&a); +LL + let x = bar(a.clone()); + | error[E0505]: cannot move out of `a` because it is borrowed --> $DIR/variance-issue-20533.rs:40:14 @@ -46,8 +48,9 @@ LL | drop(x); | help: consider cloning the value if the performance cost is acceptable | -LL | let x = baz(&a.clone()); - | ++++++++ +LL - let x = baz(&a); +LL + let x = baz(a.clone()); + | error: aborting due to 3 previous errors