tests/ui/generator/issue-105084.drop_tracking_mir.stderr

   1 error[E0382]: borrow of moved value: `g`
   2   --> $DIR/issue-105084.rs:45:14
   3    |
   4 LL |     let mut g = || {
   5    |         ----- move occurs because `g` has type `[generator@$DIR/issue-105084.rs:22:17: 22:19]`, which does not implement the `Copy` trait
   6 ...
   7 LL |     let mut h = copy(g);
   8    |                      - value moved here
   9 ...
  10 LL |     Pin::new(&mut g).resume(());
  11    |              ^^^^^^ value borrowed here after move
  12    |
  13 note: consider changing this parameter type in function `copy` to borrow instead if owning the value isn't necessary
  14   --> $DIR/issue-105084.rs:17:21
  15    |
  16 LL | fn copy<T: Copy>(x: T) -> T {
  17    |    ----             ^ this parameter takes ownership of the value
  18    |    |
  19    |    in this function
  20 help: consider cloning the value if the performance cost is acceptable
  21    |
  22 LL |     let mut h = copy(g.clone());
  23    |                       ++++++++
  24
  25 error[E0277]: the trait bound `Box<(i32, ())>: Copy` is not satisfied in `[generator@$DIR/issue-105084.rs:22:17: 22:19]`
  26   --> $DIR/issue-105084.rs:39:17
  27    |
  28 LL |     let mut g = || {
  29    |                 -- within this `[generator@$DIR/issue-105084.rs:22:17: 22:19]`
  30 ...
  31 LL |     let mut h = copy(g);
  32    |                 ^^^^ within `[generator@$DIR/issue-105084.rs:22:17: 22:19]`, the trait `Copy` is not implemented for `Box<(i32, ())>`
  33    |
  34 note: generator does not implement `Copy` as this value is used across a yield
  35   --> $DIR/issue-105084.rs:29:22
  36    |
  37 LL |         Box::new((5, yield));
  38    |         -------------^^^^^--
  39    |         |            |
  40    |         |            yield occurs here, with `Box::new((5, yield))` maybe used later
  41    |         has type `Box<(i32, ())>` which does not implement `Copy`
  42 note: required by a bound in `copy`
  43   --> $DIR/issue-105084.rs:17:12
  44    |
  45 LL | fn copy<T: Copy>(x: T) -> T {
  46    |            ^^^^ required by this bound in `copy`
  47
  48 error: aborting due to 2 previous errors
  49
  50 Some errors have detailed explanations: E0277, E0382.
  51 For more information about an error, try `rustc --explain E0277`.