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

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