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|
error: lifetime may not live long enough
--> $DIR/region-object-lifetime-in-coercion.rs:8:12
|
LL | fn a(v: &[u8]) -> Box<dyn Foo + 'static> {
| - let's call the lifetime of this reference `'1`
LL | let x: Box<dyn Foo + 'static> = Box::new(v);
| ^^^^^^^^^^^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static`
|
help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `v`
|
LL | fn a(v: &[u8]) -> Box<dyn Foo + '_> {
| ~~
help: alternatively, add an explicit `'static` bound to this reference
|
LL | fn a(v: &'static [u8]) -> Box<dyn Foo + 'static> {
| ~~~~~~~~~~~~~
error: lifetime may not live long enough
--> $DIR/region-object-lifetime-in-coercion.rs:14:5
|
LL | fn b(v: &[u8]) -> Box<dyn Foo + 'static> {
| - let's call the lifetime of this reference `'1`
LL | Box::new(v)
| ^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static`
|
help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `v`
|
LL | fn b(v: &[u8]) -> Box<dyn Foo + '_> {
| ~~
help: alternatively, add an explicit `'static` bound to this reference
|
LL | fn b(v: &'static [u8]) -> Box<dyn Foo + 'static> {
| ~~~~~~~~~~~~~
error: lifetime may not live long enough
--> $DIR/region-object-lifetime-in-coercion.rs:21:5
|
LL | fn c(v: &[u8]) -> Box<dyn Foo> {
| - let's call the lifetime of this reference `'1`
...
LL | Box::new(v)
| ^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static`
|
help: to declare that the trait object captures data from argument `v`, you can add an explicit `'_` lifetime bound
|
LL | fn c(v: &[u8]) -> Box<dyn Foo + '_> {
| ++++
error: lifetime may not live long enough
--> $DIR/region-object-lifetime-in-coercion.rs:26:5
|
LL | fn d<'a,'b>(v: &'a [u8]) -> Box<dyn Foo+'b> {
| -- -- lifetime `'b` defined here
| |
| lifetime `'a` defined here
LL | Box::new(v)
| ^^^^^^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a`
|
= help: consider adding the following bound: `'a: 'b`
error: aborting due to 4 previous errors
|
