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Opportunistically resolve regions when processing region outlives obligations #121743
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Feb 29, 2024
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20 changes: 4 additions & 16 deletions
20
tests/ui/implied-bounds/impl-implied-bounds-compatibility.stderr
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,32 +1,20 @@ | ||
error[E0495]: cannot infer an appropriate lifetime for lifetime parameter 'b in generic type due to conflicting requirements | ||
error[E0491]: in type `&'a MessageListeners<'_>`, reference has a longer lifetime than the data it references | ||
--> $DIR/impl-implied-bounds-compatibility.rs:12:5 | ||
| | ||
LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> { | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
| | ||
note: first, the lifetime cannot outlive the lifetime `'c` as defined here... | ||
--> $DIR/impl-implied-bounds-compatibility.rs:12:5 | ||
| | ||
LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> { | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
note: ...so that the method type is compatible with trait | ||
--> $DIR/impl-implied-bounds-compatibility.rs:12:5 | ||
| | ||
LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> { | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
= note: expected `fn(&'c MessageListeners<'_>) -> &'c MessageListeners<'c>` | ||
found `fn(&MessageListeners<'_>) -> &'a MessageListeners<'_>` | ||
note: but, the lifetime must be valid for the lifetime `'a` as defined here... | ||
note: the pointer is valid for the lifetime `'a` as defined here | ||
--> $DIR/impl-implied-bounds-compatibility.rs:11:6 | ||
| | ||
LL | impl<'a> MessageListenersInterface for MessageListeners<'a> { | ||
| ^^ | ||
note: ...so that the reference type `&'a MessageListeners<'_>` does not outlive the data it points at | ||
note: but the referenced data is only valid for the lifetime `'c` as defined here | ||
--> $DIR/impl-implied-bounds-compatibility.rs:12:5 | ||
| | ||
LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> { | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
|
||
error: aborting due to 1 previous error | ||
|
||
For more information about this error, try `rustc --explain E0495`. | ||
For more information about this error, try `rustc --explain E0491`. |
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🤔 I guess we're now matching an implied bound?