diff options
28 files changed, 202 insertions, 67 deletions
diff --git a/src/librustc_errors/diagnostic.rs b/src/librustc_errors/diagnostic.rs index cff83c3d5cd..acaa26c6ad2 100644 --- a/src/librustc_errors/diagnostic.rs +++ b/src/librustc_errors/diagnostic.rs @@ -296,6 +296,29 @@ impl Diagnostic { self } + pub fn multipart_suggestions( + &mut self, + msg: &str, + suggestions: Vec<Vec<(Span, String)>>, + applicability: Applicability, + ) -> &mut Self { + self.suggestions.push(CodeSuggestion { + substitutions: suggestions + .into_iter() + .map(|suggestion| Substitution { + parts: suggestion + .into_iter() + .map(|(span, snippet)| SubstitutionPart { snippet, span }) + .collect(), + }) + .collect(), + msg: msg.to_owned(), + style: SuggestionStyle::ShowCode, + applicability, + }); + self + } + /// Prints out a message with for a multipart suggestion without showing the suggested code. /// /// This is intended to be used for suggestions that are obvious in what the changes need to diff --git a/src/librustc_errors/diagnostic_builder.rs b/src/librustc_errors/diagnostic_builder.rs index 2dbd9f4e52f..22bf8fe34aa 100644 --- a/src/librustc_errors/diagnostic_builder.rs +++ b/src/librustc_errors/diagnostic_builder.rs @@ -260,6 +260,19 @@ impl<'a> DiagnosticBuilder<'a> { self } + pub fn multipart_suggestions( + &mut self, + msg: &str, + suggestions: Vec<Vec<(Span, String)>>, + applicability: Applicability, + ) -> &mut Self { + if !self.0.allow_suggestions { + return self; + } + self.0.diagnostic.multipart_suggestions(msg, suggestions, applicability); + self + } + pub fn tool_only_multipart_suggestion( &mut self, msg: &str, diff --git a/src/librustc_middle/ty/util.rs b/src/librustc_middle/ty/util.rs index c61e27528ce..866a35ebfa6 100644 --- a/src/librustc_middle/ty/util.rs +++ b/src/librustc_middle/ty/util.rs @@ -878,7 +878,15 @@ impl<'tcx> ty::TyS<'tcx> { // Find non representable fields with their spans fold_repr(def.all_fields().map(|field| { let ty = field.ty(tcx, substs); - let span = tcx.hir().span_if_local(field.did).unwrap_or(sp); + let span = match field + .did + .as_local() + .map(|id| tcx.hir().as_local_hir_id(id)) + .and_then(|id| tcx.hir().find(id)) + { + Some(hir::Node::Field(field)) => field.ty.span, + _ => sp, + }; match is_type_structurally_recursive( tcx, span, diff --git a/src/librustc_trait_selection/traits/error_reporting/mod.rs b/src/librustc_trait_selection/traits/error_reporting/mod.rs index 1b72a4bf84f..d31e04cffd5 100644 --- a/src/librustc_trait_selection/traits/error_reporting/mod.rs +++ b/src/librustc_trait_selection/traits/error_reporting/mod.rs @@ -1747,24 +1747,41 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> { pub fn recursive_type_with_infinite_size_error( tcx: TyCtxt<'tcx>, type_def_id: DefId, -) -> DiagnosticBuilder<'tcx> { + spans: Vec<Span>, +) { assert!(type_def_id.is_local()); let span = tcx.hir().span_if_local(type_def_id).unwrap(); let span = tcx.sess.source_map().guess_head_span(span); - let mut err = struct_span_err!( - tcx.sess, - span, - E0072, - "recursive type `{}` has infinite size", - tcx.def_path_str(type_def_id) - ); + let path = tcx.def_path_str(type_def_id); + let mut err = + struct_span_err!(tcx.sess, span, E0072, "recursive type `{}` has infinite size", path); err.span_label(span, "recursive type has infinite size"); - err.help(&format!( - "insert indirection (e.g., a `Box`, `Rc`, or `&`) \ - at some point to make `{}` representable", - tcx.def_path_str(type_def_id) - )); - err + for &span in &spans { + err.span_label(span, "recursive without indirection"); + } + let msg = format!( + "insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `{}` representable", + path, + ); + if spans.len() <= 4 { + err.multipart_suggestion( + &msg, + spans + .iter() + .flat_map(|&span| { + vec![ + (span.shrink_to_lo(), "Box<".to_string()), + (span.shrink_to_hi(), ">".to_string()), + ] + .into_iter() + }) + .collect(), + Applicability::HasPlaceholders, + ); + } else { + err.help(&msg); + } + err.emit(); } /// Summarizes information diff --git a/src/librustc_typeck/check/mod.rs b/src/librustc_typeck/check/mod.rs index 7b8f1802196..a409e20953d 100644 --- a/src/librustc_typeck/check/mod.rs +++ b/src/librustc_typeck/check/mod.rs @@ -2387,11 +2387,7 @@ fn check_representable(tcx: TyCtxt<'_>, sp: Span, item_def_id: LocalDefId) -> bo // caught by case 1. match rty.is_representable(tcx, sp) { Representability::SelfRecursive(spans) => { - let mut err = recursive_type_with_infinite_size_error(tcx, item_def_id.to_def_id()); - for span in spans { - err.span_label(span, "recursive without indirection"); - } - err.emit(); + recursive_type_with_infinite_size_error(tcx, item_def_id.to_def_id(), spans); return false; } Representability::Representable | Representability::ContainsRecursive => (), diff --git a/src/test/ui/infinite/infinite-tag-type-recursion.stderr b/src/test/ui/infinite/infinite-tag-type-recursion.stderr index 11f82b842ba..6d1df4fda2e 100644 --- a/src/test/ui/infinite/infinite-tag-type-recursion.stderr +++ b/src/test/ui/infinite/infinite-tag-type-recursion.stderr @@ -6,7 +6,10 @@ LL | enum MList { Cons(isize, MList), Nil } | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `MList` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `MList` representable + | +LL | enum MList { Cons(isize, Box<MList>), Nil } + | ^^^^ ^ error[E0391]: cycle detected when computing drop-check constraints for `MList` --> $DIR/infinite-tag-type-recursion.rs:1:1 diff --git a/src/test/ui/issues/issue-17431-1.stderr b/src/test/ui/issues/issue-17431-1.stderr index eb5a1366e89..58d087ca199 100644 --- a/src/test/ui/issues/issue-17431-1.stderr +++ b/src/test/ui/issues/issue-17431-1.stderr @@ -2,11 +2,14 @@ error[E0072]: recursive type `Foo` has infinite size --> $DIR/issue-17431-1.rs:1:1 | LL | struct Foo { foo: Option<Option<Foo>> } - | ^^^^^^^^^^ ------------------------ recursive without indirection + | ^^^^^^^^^^ ------------------- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | struct Foo { foo: Box<Option<Option<Foo>>> } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-17431-2.stderr b/src/test/ui/issues/issue-17431-2.stderr index 3a7b0e9ce79..eba4bf6d1d5 100644 --- a/src/test/ui/issues/issue-17431-2.stderr +++ b/src/test/ui/issues/issue-17431-2.stderr @@ -2,21 +2,27 @@ error[E0072]: recursive type `Baz` has infinite size --> $DIR/issue-17431-2.rs:1:1 | LL | struct Baz { q: Option<Foo> } - | ^^^^^^^^^^ -------------- recursive without indirection + | ^^^^^^^^^^ ----------- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Baz` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Baz` representable + | +LL | struct Baz { q: Box<Option<Foo>> } + | ^^^^ ^ error[E0072]: recursive type `Foo` has infinite size --> $DIR/issue-17431-2.rs:4:1 | LL | struct Foo { q: Option<Baz> } - | ^^^^^^^^^^ -------------- recursive without indirection + | ^^^^^^^^^^ ----------- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | struct Foo { q: Box<Option<Baz>> } + | ^^^^ ^ error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-17431-3.stderr b/src/test/ui/issues/issue-17431-3.stderr index 675a2e27142..f6b15d0528a 100644 --- a/src/test/ui/issues/issue-17431-3.stderr +++ b/src/test/ui/issues/issue-17431-3.stderr @@ -2,11 +2,14 @@ error[E0072]: recursive type `Foo` has infinite size --> $DIR/issue-17431-3.rs:3:1 | LL | struct Foo { foo: Mutex<Option<Foo>> } - | ^^^^^^^^^^ ----------------------- recursive without indirection + | ^^^^^^^^^^ ------------------ recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | struct Foo { foo: Box<Mutex<Option<Foo>>> } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-17431-4.stderr b/src/test/ui/issues/issue-17431-4.stderr index aff9071095c..aa709e1ad51 100644 --- a/src/test/ui/issues/issue-17431-4.stderr +++ b/src/test/ui/issues/issue-17431-4.stderr @@ -2,11 +2,14 @@ error[E0072]: recursive type `Foo` has infinite size --> $DIR/issue-17431-4.rs:3:1 | LL | struct Foo<T> { foo: Option<Option<Foo<T>>>, marker: marker::PhantomData<T> } - | ^^^^^^^^^^^^^ --------------------------- recursive without indirection + | ^^^^^^^^^^^^^ ---------------------- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | struct Foo<T> { foo: Box<Option<Option<Foo<T>>>>, marker: marker::PhantomData<T> } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-17431-5.stderr b/src/test/ui/issues/issue-17431-5.stderr index 537f9f34f55..1558cffb036 100644 --- a/src/test/ui/issues/issue-17431-5.stderr +++ b/src/test/ui/issues/issue-17431-5.stderr @@ -2,11 +2,14 @@ error[E0072]: recursive type `Bar` has infinite size --> $DIR/issue-17431-5.rs:5:1 | LL | struct Bar<T> { x: Bar<Foo> , marker: marker::PhantomData<T> } - | ^^^^^^^^^^^^^ ----------- recursive without indirection + | ^^^^^^^^^^^^^ -------- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Bar` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Bar` representable + | +LL | struct Bar<T> { x: Box<Bar<Foo>> , marker: marker::PhantomData<T> } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-17431-6.stderr b/src/test/ui/issues/issue-17431-6.stderr index cb2dab95014..f2aa2a79c82 100644 --- a/src/test/ui/issues/issue-17431-6.stderr +++ b/src/test/ui/issues/issue-17431-6.stderr @@ -6,7 +6,10 @@ LL | enum Foo { X(Mutex<Option<Foo>>) } | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | enum Foo { X(Box<Mutex<Option<Foo>>>) } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-17431-7.stderr b/src/test/ui/issues/issue-17431-7.stderr index de70851da4b..684c3089e85 100644 --- a/src/test/ui/issues/issue-17431-7.stderr +++ b/src/test/ui/issues/issue-17431-7.stderr @@ -6,7 +6,10 @@ LL | enum Foo { Voo(Option<Option<Foo>>) } | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | enum Foo { Voo(Box<Option<Option<Foo>>>) } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-2718-a.stderr b/src/test/ui/issues/issue-2718-a.stderr index 0f52c791928..d152ffde4e5 100644 --- a/src/test/ui/issues/issue-2718-a.stderr +++ b/src/test/ui/issues/issue-2718-a.stderr @@ -7,7 +7,10 @@ LL | pub struct Pong(SendPacket<Ping>); | | recursive without indirection | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `pingpong::Pong` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `pingpong::Pong` representable + | +LL | pub struct Pong(Box<SendPacket<Ping>>); + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-3008-1.stderr b/src/test/ui/issues/issue-3008-1.stderr index f12274134ee..87ee36df216 100644 --- a/src/test/ui/issues/issue-3008-1.stderr +++ b/src/test/ui/issues/issue-3008-1.stderr @@ -7,7 +7,10 @@ LL | enum Bar { LL | BarSome(Bar) | --- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Bar` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Bar` representable + | +LL | BarSome(Box<Bar>) + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-3008-2.stderr b/src/test/ui/issues/issue-3008-2.stderr index acc15f4b57c..369a19d37e6 100644 --- a/src/test/ui/issues/issue-3008-2.stderr +++ b/src/test/ui/issues/issue-3008-2.stderr @@ -2,11 +2,14 @@ error[E0072]: recursive type `Bar` has infinite size --> $DIR/issue-3008-2.rs:2:1 | LL | struct Bar { x: Bar } - | ^^^^^^^^^^ ------ recursive without indirection + | ^^^^^^^^^^ --- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Bar` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Bar` representable + | +LL | struct Bar { x: Box<Bar> } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-3008-3.stderr b/src/test/ui/issues/issue-3008-3.stderr index d08a3d9708d..0b162eff94a 100644 --- a/src/test/ui/issues/issue-3008-3.stderr +++ b/src/test/ui/issues/issue-3008-3.stderr @@ -6,7 +6,10 @@ LL | enum E2<T> { V2(E2<E1>, marker::PhantomData<T>), } | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `E2` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `E2` representable + | +LL | enum E2<T> { V2(Box<E2<E1>>, marker::PhantomData<T>), } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-32326.stderr b/src/test/ui/issues/issue-32326.stderr index 5967627e51a..0f3d3690b73 100644 --- a/src/test/ui/issues/issue-32326.stderr +++ b/src/test/ui/issues/issue-32326.stderr @@ -8,7 +8,10 @@ LL | Plus(Expr, Expr), | | | recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Expr` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Expr` representable + | +LL | Plus(Box<Expr>, Box<Expr>), + | ^^^^ ^ ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-3779.stderr b/src/test/ui/issues/issue-3779.stderr index ba1e842c610..7b17e914216 100644 --- a/src/test/ui/issues/issue-3779.stderr +++ b/src/test/ui/issues/issue-3779.stderr @@ -5,9 +5,12 @@ LL | struct S { | ^^^^^^^^ recursive type has infinite size LL | LL | element: Option<S> - | ------------------ recursive without indirection + | --------- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `S` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `S` representable + | +LL | element: Box<Option<S>> + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-57271.stderr b/src/test/ui/issues/issue-57271.stderr index 4f164624f7a..b7c799e163c 100644 --- a/src/test/ui/issues/issue-57271.stderr +++ b/src/test/ui/issues/issue-57271.stderr @@ -7,7 +7,10 @@ LL | Class(ClassTypeSignature), LL | Array(TypeSignature), | ------------- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `ObjectType` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `ObjectType` representable + | +LL | Array(Box<TypeSignature>), + | ^^^^ ^ error[E0072]: recursive type `TypeSignature` has infinite size --> $DIR/issue-57271.rs:19:1 @@ -18,7 +21,10 @@ LL | Base(BaseType), LL | Object(ObjectType), | ---------- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `TypeSignature` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `TypeSignature` representable + | +LL | Object(Box<ObjectType>), + | ^^^^ ^ error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-72554.stderr b/src/test/ui/issues/issue-72554.stderr index 9db65f4a2ee..9de94c393a7 100644 --- a/src/test/ui/issues/issue-72554.stderr +++ b/src/test/ui/issues/issue-72554.stderr @@ -6,7 +6,10 @@ LL | pub enum ElemDerived { LL | A(ElemDerived) | ----------- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `ElemDerived` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `ElemDerived` representable + | +LL | A(Box<ElemDerived>) + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/recursion/recursive-enum.stderr b/src/test/ui/recursion/recursive-enum.stderr index e4674b57a6d..ab4709d8e70 100644 --- a/src/test/ui/recursion/recursive-enum.stderr +++ b/src/test/ui/recursion/recursive-enum.stderr @@ -6,7 +6,10 @@ LL | enum List<T> { Cons(T, List<T>), Nil } | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `List` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `List` representable + | +LL | enum List<T> { Cons(T, Box<List<T>>), Nil } + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/sized-cycle-note.stderr b/src/test/ui/sized-cycle-note.stderr index 95bdc349426..45062c2ea6c 100644 --- a/src/test/ui/sized-cycle-note.stderr +++ b/src/test/ui/sized-cycle-note.stderr @@ -2,21 +2,27 @@ error[E0072]: recursive type `Baz` has infinite size --> $DIR/sized-cycle-note.rs:9:1 | LL | struct Baz { q: Option<Foo> } - | ^^^^^^^^^^ -------------- recursive without indirection + | ^^^^^^^^^^ ----------- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Baz` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Baz` representable + | +LL | struct Baz { q: Box<Option<Foo>> } + | ^^^^ ^ error[E0072]: recursive type `Foo` has infinite size --> $DIR/sized-cycle-note.rs:11:1 | LL | struct Foo { q: Option<Baz> } - | ^^^^^^^^^^ -------------- recursive without indirection + | ^^^^^^^^^^ ----------- recursive without indirection | | | recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | struct Foo { q: Box<Option<Baz>> } + | ^^^^ ^ error: aborting due to 2 previous errors diff --git a/src/test/ui/span/E0072.stderr b/src/test/ui/span/E0072.stderr index d4a5e7400d2..06493f05142 100644 --- a/src/test/ui/span/E0072.stderr +++ b/src/test/ui/span/E0072.stderr @@ -5,9 +5,12 @@ LL | struct ListNode { | ^^^^^^^^^^^^^^^ recursive type has infinite size LL | head: u8, LL | tail: Option<ListNode>, - | ---------------------- recursive without indirection + | ---------------- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `ListNode` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `ListNode` representable + | +LL | tail: Box<Option<ListNode>>, + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/span/multiline-span-E0072.stderr b/src/test/ui/span/multiline-span-E0072.stderr index dd322fe833b..55128347f74 100644 --- a/src/test/ui/span/multiline-span-E0072.stderr +++ b/src/test/ui/span/multiline-span-E0072.stderr @@ -6,11 +6,14 @@ LL | | ListNode LL | | { LL | | head: u8, LL | | tail: Option<ListNode>, - | | ---------------------- recursive without indirection + | | ---------------- recursive without indirection LL | | } | |_^ recursive type has infinite size | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `ListNode` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `ListNode` representable + | +LL | tail: Box<Option<ListNode>>, + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/span/recursive-type-field.stderr b/src/test/ui/span/recursive-type-field.stderr index d240872647e..fb1d98b58df 100644 --- a/src/test/ui/span/recursive-type-field.stderr +++ b/src/test/ui/span/recursive-type-field.stderr @@ -4,9 +4,12 @@ error[E0072]: recursive type `Foo` has infinite size LL | struct Foo<'a> { | ^^^^^^^^^^^^^^ recursive type has infinite size LL | bar: Bar<'a>, - | ------------ recursive without indirection + | ------- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Foo` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable + | +LL | bar: Box<Bar<'a>>, + | ^^^^ ^ error[E0072]: recursive type `Bar` has infinite size --> $DIR/recursive-type-field.rs:8:1 @@ -14,18 +17,18 @@ error[E0072]: recursive type `Bar` has infinite size LL | struct Bar<'a> { | ^^^^^^^^^^^^^^ recursive type has infinite size LL | y: (Foo<'a>, Foo<'a>), - | --------------------- recursive without indirection + | ------------------ recursive without indirection LL | z: Option<Bar<'a>>, - | ------------------ recursive without indirection + | --------------- recursive without indirection ... LL | d: [Bar<'a>; 1], - | --------------- recursive without indirection + | ------------ recursive without indirection LL | e: Foo<'a>, - | ---------- recursive without indirection + | ------- recursive without indirection LL | x: Bar<'a>, - | ---------- recursive without indirection + | ------- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Bar` representable + = help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Bar` representable error: aborting due to 2 previous errors diff --git a/src/test/ui/type/type-recursive.stderr b/src/test/ui/type/type-recursive.stderr index 72bf372e561..d6d32cc5d6f 100644 --- a/src/test/ui/type/type-recursive.stderr +++ b/src/test/ui/type/type-recursive.stderr @@ -5,9 +5,12 @@ LL | struct T1 { | ^^^^^^^^^ recursive type has infinite size LL | foo: isize, LL | foolish: T1 - | ----------- recursive without indirection + | -- recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `T1` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `T1` representable + | +LL | foolish: Box<T1> + | ^^^^ ^ error: aborting due to previous error diff --git a/src/test/ui/union/union-nonrepresentable.stderr b/src/test/ui/union/union-nonrepresentable.stderr index 746c1033ea3..c54d04de12c 100644 --- a/src/test/ui/union/union-nonrepresentable.stderr +++ b/src/test/ui/union/union-nonrepresentable.stderr @@ -5,9 +5,12 @@ LL | union U { | ^^^^^^^ recursive type has infinite size LL | a: u8, LL | b: U, - | ---- recursive without indirection + | - recursive without indirection | - = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `U` representable +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `U` representable + | +LL | b: Box<U>, + | ^^^^ ^ error: aborting due to previous error |