03878c682a
uses a `ProofTreeVisitor` to look into nested goals when looking at the pending obligations during hir typeck. Used by closure signature inference, coercion, and for async functions.
18 lines
480 B
Plaintext
18 lines
480 B
Plaintext
error[E0282]: type annotations needed
|
|
--> $DIR/obligation-with-leaking-placeholders.rs:18:16
|
|
|
|
|
LL | needs_foo(|x| {
|
|
| ^
|
|
...
|
|
LL | x.to_string();
|
|
| - type must be known at this point
|
|
|
|
|
help: consider giving this closure parameter an explicit type
|
|
|
|
|
LL | needs_foo(|x: /* Type */| {
|
|
| ++++++++++++
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0282`.
|