src/test/ui/associated-type-bounds/inside-adt.stderr

   1 error: associated type bounds are not allowed within structs, enums, or unions
   2   --> $DIR/inside-adt.rs:5:29
   3    |
   4 LL | struct S1 { f: dyn Iterator<Item: Copy> }
   5    |                             ^^^^^^^^^^
   6
   7 error: associated type bounds are not allowed within structs, enums, or unions
   8   --> $DIR/inside-adt.rs:7:33
   9    |
  10 LL | struct S2 { f: Box<dyn Iterator<Item: Copy>> }
  11    |                                 ^^^^^^^^^^
  12
  13 error: associated type bounds are not allowed within structs, enums, or unions
  14   --> $DIR/inside-adt.rs:9:29
  15    |
  16 LL | struct S3 { f: dyn Iterator<Item: 'static> }
  17    |                             ^^^^^^^^^^^^^
  18
  19 error: associated type bounds are not allowed within structs, enums, or unions
  20   --> $DIR/inside-adt.rs:12:26
  21    |
  22 LL | enum E1 { V(dyn Iterator<Item: Copy>) }
  23    |                          ^^^^^^^^^^
  24
  25 error: associated type bounds are not allowed within structs, enums, or unions
  26   --> $DIR/inside-adt.rs:15:30
  27    |
  28 LL | enum E2 { V(Box<dyn Iterator<Item: Copy>>) }
  29    |                              ^^^^^^^^^^
  30
  31 error: associated type bounds are not allowed within structs, enums, or unions
  32   --> $DIR/inside-adt.rs:17:26
  33    |
  34 LL | enum E3 { V(dyn Iterator<Item: 'static>) }
  35    |                          ^^^^^^^^^^^^^
  36
  37 error: associated type bounds are not allowed within structs, enums, or unions
  38   --> $DIR/inside-adt.rs:21:41
  39    |
  40 LL | union U1 { f: ManuallyDrop<dyn Iterator<Item: Copy>> }
  41    |                                         ^^^^^^^^^^
  42
  43 error: associated type bounds are not allowed within structs, enums, or unions
  44   --> $DIR/inside-adt.rs:24:45
  45    |
  46 LL | union U2 { f: ManuallyDrop<Box<dyn Iterator<Item: Copy>>> }
  47    |                                             ^^^^^^^^^^
  48
  49 error: associated type bounds are not allowed within structs, enums, or unions
  50   --> $DIR/inside-adt.rs:26:41
  51    |
  52 LL | union U3 { f: ManuallyDrop<dyn Iterator<Item: 'static>> }
  53    |                                         ^^^^^^^^^^^^^
  54
  55 error[E0277]: the size for values of type `(dyn Iterator<Item = impl Copy> + 'static)` cannot be known at compilation time
  56   --> $DIR/inside-adt.rs:12:13
  57    |
  58 LL | enum E1 { V(dyn Iterator<Item: Copy>) }
  59    |             ^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
  60    |
  61    = help: the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Copy> + 'static)`
  62    = note: no field of an enum variant may have a dynamically sized type
  63    = help: change the field's type to have a statically known size
  64 help: borrowed types always have a statically known size
  65    |
  66 LL | enum E1 { V(&dyn Iterator<Item: Copy>) }
  67    |             +
  68 help: the `Box` type always has a statically known size and allocates its contents in the heap
  69    |
  70 LL | enum E1 { V(Box<dyn Iterator<Item: Copy>>) }
  71    |             ++++                        +
  72
  73 error[E0277]: the size for values of type `(dyn Iterator<Item = impl Sized + 'static> + 'static)` cannot be known at compilation time
  74   --> $DIR/inside-adt.rs:17:13
  75    |
  76 LL | enum E3 { V(dyn Iterator<Item: 'static>) }
  77    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
  78    |
  79    = help: the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Sized + 'static> + 'static)`
  80    = note: no field of an enum variant may have a dynamically sized type
  81    = help: change the field's type to have a statically known size
  82 help: borrowed types always have a statically known size
  83    |
  84 LL | enum E3 { V(&dyn Iterator<Item: 'static>) }
  85    |             +
  86 help: the `Box` type always has a statically known size and allocates its contents in the heap
  87    |
  88 LL | enum E3 { V(Box<dyn Iterator<Item: 'static>>) }
  89    |             ++++                           +
  90
  91 error[E0277]: the size for values of type `(dyn Iterator<Item = impl Copy> + 'static)` cannot be known at compilation time
  92   --> $DIR/inside-adt.rs:21:15
  93    |
  94 LL | union U1 { f: ManuallyDrop<dyn Iterator<Item: Copy>> }
  95    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
  96    |
  97    = help: within `ManuallyDrop<(dyn Iterator<Item = impl Copy> + 'static)>`, the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Copy> + 'static)`
  98    = note: required because it appears within the type `ManuallyDrop<(dyn Iterator<Item = impl Copy> + 'static)>`
  99    = note: no field of a union may have a dynamically sized type
 100    = help: change the field's type to have a statically known size
 101 help: borrowed types always have a statically known size
 102    |
 103 LL | union U1 { f: &ManuallyDrop<dyn Iterator<Item: Copy>> }
 104    |               +
 105 help: the `Box` type always has a statically known size and allocates its contents in the heap
 106    |
 107 LL | union U1 { f: Box<ManuallyDrop<dyn Iterator<Item: Copy>>> }
 108    |               ++++                                      +
 109
 110 error[E0277]: the size for values of type `(dyn Iterator<Item = impl Sized + 'static> + 'static)` cannot be known at compilation time
 111   --> $DIR/inside-adt.rs:26:15
 112    |
 113 LL | union U3 { f: ManuallyDrop<dyn Iterator<Item: 'static>> }
 114    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
 115    |
 116    = help: within `ManuallyDrop<(dyn Iterator<Item = impl Sized + 'static> + 'static)>`, the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Sized + 'static> + 'static)`
 117    = note: required because it appears within the type `ManuallyDrop<(dyn Iterator<Item = impl Sized + 'static> + 'static)>`
 118    = note: no field of a union may have a dynamically sized type
 119    = help: change the field's type to have a statically known size
 120 help: borrowed types always have a statically known size
 121    |
 122 LL | union U3 { f: &ManuallyDrop<dyn Iterator<Item: 'static>> }
 123    |               +
 124 help: the `Box` type always has a statically known size and allocates its contents in the heap
 125    |
 126 LL | union U3 { f: Box<ManuallyDrop<dyn Iterator<Item: 'static>>> }
 127    |               ++++                                         +
 128
 129 error: aborting due to 13 previous errors
 130
 131 For more information about this error, try `rustc --explain E0277`.