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authorEsteban Küber <esteban@kuber.com.ar>2024-01-29 18:31:02 +0000
committerEsteban Küber <esteban@kuber.com.ar>2024-01-30 21:28:18 +0000
commit6efddac288643c4b0bc85ea317ea275e6cb4739f (patch)
tree2a8729a40eb6266fc410458c64066fa3ffa40c94 /tests/ui/kindck/kindck-send-object1.stderr
parentf3d71c9249072413f014b378bb5ea79c8a7dc9a7 (diff)
downloadrust-6efddac288643c4b0bc85ea317ea275e6cb4739f.tar.gz
rust-6efddac288643c4b0bc85ea317ea275e6cb4739f.zip
Provide more context on derived obligation error primary label
Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote:

```
error[E0277]: the trait bound `i32: Bar` is not satisfied
 --> f100.rs:6:6
  |
6 |     <i32 as Foo>::foo();
  |      ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
  |
help: this trait has no implementations, consider adding one
 --> f100.rs:2:1
  |
2 | trait Bar {}
  | ^^^^^^^^^
note: required for `i32` to implement `Foo`
 --> f100.rs:3:14
  |
3 | impl<T: Bar> Foo for T {}
  |         ---  ^^^     ^
  |         |
  |         unsatisfied trait bound introduced here
```

Fix #40120.
Diffstat (limited to 'tests/ui/kindck/kindck-send-object1.stderr')
-rw-r--r--tests/ui/kindck/kindck-send-object1.stderr4
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/ui/kindck/kindck-send-object1.stderr b/tests/ui/kindck/kindck-send-object1.stderr
index c0d516e3f62..771c54dce0d 100644
--- a/tests/ui/kindck/kindck-send-object1.stderr
+++ b/tests/ui/kindck/kindck-send-object1.stderr
@@ -4,7 +4,7 @@ error[E0277]: `(dyn Dummy + 'a)` cannot be shared between threads safely
 LL |     assert_send::<&'a dyn Dummy>();
    |                   ^^^^^^^^^^^^^ `(dyn Dummy + 'a)` cannot be shared between threads safely
    |
-   = help: the trait `Sync` is not implemented for `(dyn Dummy + 'a)`
+   = help: the trait `Sync` is not implemented for `(dyn Dummy + 'a)`, which is required by `&'a (dyn Dummy + 'a): Send`
    = note: required for `&'a (dyn Dummy + 'a)` to implement `Send`
 note: required by a bound in `assert_send`
   --> $DIR/kindck-send-object1.rs:5:18
@@ -18,7 +18,7 @@ error[E0277]: `(dyn Dummy + 'a)` cannot be sent between threads safely
 LL |     assert_send::<Box<dyn Dummy + 'a>>();
    |                   ^^^^^^^^^^^^^^^^^^^ `(dyn Dummy + 'a)` cannot be sent between threads safely
    |
-   = help: the trait `Send` is not implemented for `(dyn Dummy + 'a)`
+   = help: the trait `Send` is not implemented for `(dyn Dummy + 'a)`, which is required by `Box<(dyn Dummy + 'a)>: Send`
    = note: required for `Unique<(dyn Dummy + 'a)>` to implement `Send`
 note: required because it appears within the type `Box<(dyn Dummy + 'a)>`
   --> $SRC_DIR/alloc/src/boxed.rs:LL:COL