tests/ui/suggestions/adt-param-with-implicit-sized-bound.stderr

   1 error[E0277]: the size for values of type `T` cannot be known at compilation time
   2   --> $DIR/adt-param-with-implicit-sized-bound.rs:25:9
   3    |
   4 LL | struct Struct5<T: ?Sized>{
   5    |                - this type parameter needs to be `std::marker::Sized`
   6 LL |     _t: X<T>,
   7    |         ^^^^ doesn't have a size known at compile-time
   8    |
   9 note: required by a bound in `X`
  10   --> $DIR/adt-param-with-implicit-sized-bound.rs:18:10
  11    |
  12 LL | struct X<T>(T);
  13    |          ^ required by this bound in `X`
  14 help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
  15   --> $DIR/adt-param-with-implicit-sized-bound.rs:18:10
  16    |
  17 LL | struct X<T>(T);
  18    |          ^  - ...if indirection were used here: `Box<T>`
  19    |          |
  20    |          this could be changed to `T: ?Sized`...
  21 help: consider removing the `?Sized` bound to make the type parameter `Sized`
  22    |
  23 LL - struct Struct5<T: ?Sized>{
  24 LL + struct Struct5<T>{
  25    |
  26
  27 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  28   --> $DIR/adt-param-with-implicit-sized-bound.rs:2:19
  29    |
  30 LL |     fn func1() -> Struct1<Self>;
  31    |                   ^^^^^^^^^^^^^ doesn't have a size known at compile-time
  32    |
  33 note: required by a bound in `Struct1`
  34   --> $DIR/adt-param-with-implicit-sized-bound.rs:8:16
  35    |
  36 LL | struct Struct1<T>{
  37    |                ^ required by this bound in `Struct1`
  38 help: consider further restricting `Self`
  39    |
  40 LL |     fn func1() -> Struct1<Self> where Self: Sized;
  41    |                                 +++++++++++++++++
  42 help: consider relaxing the implicit `Sized` restriction
  43    |
  44 LL | struct Struct1<T: ?Sized>{
  45    |                 ++++++++
  46
  47 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  48   --> $DIR/adt-param-with-implicit-sized-bound.rs:3:23
  49    |
  50 LL |     fn func2<'a>() -> Struct2<'a, Self>;
  51    |                       ^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
  52    |
  53 note: required by a bound in `Struct2`
  54   --> $DIR/adt-param-with-implicit-sized-bound.rs:11:20
  55    |
  56 LL | struct Struct2<'a, T>{
  57    |                    ^ required by this bound in `Struct2`
  58 help: consider further restricting `Self`
  59    |
  60 LL |     fn func2<'a>() -> Struct2<'a, Self> where Self: Sized;
  61    |                                         +++++++++++++++++
  62 help: consider relaxing the implicit `Sized` restriction
  63    |
  64 LL | struct Struct2<'a, T: ?Sized>{
  65    |                     ++++++++
  66
  67 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  68   --> $DIR/adt-param-with-implicit-sized-bound.rs:4:19
  69    |
  70 LL |     fn func3() -> Struct3<Self>;
  71    |                   ^^^^^^^^^^^^^ doesn't have a size known at compile-time
  72    |
  73 note: required by a bound in `Struct3`
  74   --> $DIR/adt-param-with-implicit-sized-bound.rs:14:16
  75    |
  76 LL | struct Struct3<T>{
  77    |                ^ required by this bound in `Struct3`
  78 help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
  79   --> $DIR/adt-param-with-implicit-sized-bound.rs:14:16
  80    |
  81 LL | struct Struct3<T>{
  82    |                ^ this could be changed to `T: ?Sized`...
  83 LL |     _t: T,
  84    |         - ...if indirection were used here: `Box<T>`
  85 help: consider further restricting `Self`
  86    |
  87 LL |     fn func3() -> Struct3<Self> where Self: Sized;
  88    |                                 +++++++++++++++++
  89
  90 error[E0277]: the size for values of type `Self` cannot be known at compilation time
  91   --> $DIR/adt-param-with-implicit-sized-bound.rs:5:19
  92    |
  93 LL |     fn func4() -> Struct4<Self>;
  94    |                   ^^^^^^^^^^^^^ doesn't have a size known at compile-time
  95    |
  96 note: required by a bound in `Struct4`
  97   --> $DIR/adt-param-with-implicit-sized-bound.rs:20:16
  98    |
  99 LL | struct Struct4<T>{
 100    |                ^ required by this bound in `Struct4`
 101 help: consider further restricting `Self`
 102    |
 103 LL |     fn func4() -> Struct4<Self> where Self: Sized;
 104    |                                 +++++++++++++++++
 105 help: consider relaxing the implicit `Sized` restriction
 106    |
 107 LL | struct Struct4<T: ?Sized>{
 108    |                 ++++++++
 109
 110 error: aborting due to 5 previous errors
 111
 112 For more information about this error, try `rustc --explain E0277`.