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Diffstat (limited to '')
| -rw-r--r-- | src/test/ui/regions/regions-close-object-into-object-2.stderr | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-close-object-into-object-2.stderr b/src/test/ui/regions/regions-close-object-into-object-2.stderr new file mode 100644 index 000000000..aacb5ea4e --- /dev/null +++ b/src/test/ui/regions/regions-close-object-into-object-2.stderr @@ -0,0 +1,29 @@ +error: lifetime may not live long enough + --> $DIR/regions-close-object-into-object-2.rs:9:5 + | +LL | fn g<'a, T: 'static>(v: Box<dyn A<T> + 'a>) -> Box<dyn X + 'static> { + | -- lifetime `'a` defined here +LL | Box::new(B(&*v)) as Box<dyn X> + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'a` must outlive `'static` + | +help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `v` + | +LL | fn g<'a, T: 'static>(v: Box<dyn A<T> + 'a>) -> Box<dyn X + 'a> { + | ~~ +help: alternatively, add an explicit `'static` bound to this reference + | +LL | fn g<'a, T: 'static>(v: Box<(dyn A<T> + 'static)>) -> Box<dyn X + 'static> { + | ~~~~~~~~~~~~~~~~~~~~~~~~~ + +error[E0515]: cannot return value referencing local data `*v` + --> $DIR/regions-close-object-into-object-2.rs:9:5 + | +LL | Box::new(B(&*v)) as Box<dyn X> + | ^^^^^^^^^^^---^^^^^^^^^^^^^^^^ + | | | + | | `*v` is borrowed here + | returns a value referencing data owned by the current function + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0515`. |