diff options
Diffstat (limited to 'src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr')
| -rw-r--r-- | src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr b/src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr new file mode 100644 index 000000000..60b0b3ee7 --- /dev/null +++ b/src/test/ui/underscore-lifetime/dyn-trait-underscore.stderr @@ -0,0 +1,16 @@ +error: lifetime may not live long enough + --> $DIR/dyn-trait-underscore.rs:8:5 + | +LL | fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T>> { + | - let's call the lifetime of this reference `'1` +LL | // ^^^^^^^^^^^^^^^^^^^^^ bound *here* defaults to `'static` +LL | Box::new(items.iter()) + | ^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static` + | +help: to declare that the trait object captures data from argument `items`, you can add an explicit `'_` lifetime bound + | +LL | fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T> + '_> { + | ++++ + +error: aborting due to previous error + |