mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-14 09:36:06 +00:00
38 lines
1.7 KiB
Plaintext
38 lines
1.7 KiB
Plaintext
error[E0495]: cannot infer an appropriate lifetime for lifetime parameter '_ in generic type due to conflicting requirements
|
|
--> $DIR/resolve-re-error-ice.rs:12:5
|
|
|
|
|
LL | fn key_set(&self) -> Subject<'a, Keys<K, V>, (), R> {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
note: first, the lifetime cannot outlive the anonymous lifetime defined here...
|
|
--> $DIR/resolve-re-error-ice.rs:5:16
|
|
|
|
|
LL | fn key_set(&self) -> Subject<Keys<K, V>, (), R>;
|
|
| ^^^^^
|
|
note: ...so that the method type is compatible with trait
|
|
--> $DIR/resolve-re-error-ice.rs:12:5
|
|
|
|
|
LL | fn key_set(&self) -> Subject<'a, Keys<K, V>, (), R> {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
= note: expected `fn(&Subject<'_, _, _, _>) -> Subject<'_, std::collections::hash_map::Keys<'_, _, _>, _, _>`
|
|
found `fn(&Subject<'_, _, _, _>) -> Subject<'a, std::collections::hash_map::Keys<'_, _, _>, _, _>`
|
|
note: but, the lifetime must be valid for the lifetime `'a` as defined here...
|
|
--> $DIR/resolve-re-error-ice.rs:10:6
|
|
|
|
|
LL | impl<'a, K, V, R> MapAssertion<'a, K, V, R> for Subject<'a, HashMap<K, V>, (), R>
|
|
| ^^
|
|
note: ...so that the type `std::collections::hash_map::Keys<'_, K, V>` will meet its required lifetime bounds...
|
|
--> $DIR/resolve-re-error-ice.rs:12:5
|
|
|
|
|
LL | fn key_set(&self) -> Subject<'a, Keys<K, V>, (), R> {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
note: ...that is required by this bound
|
|
--> $DIR/resolve-re-error-ice.rs:8:29
|
|
|
|
|
LL | struct Subject<'a, T, V, R>(PhantomData<(&'a T, V, R)>);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0495`.
|