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error[E0121]: the placeholder `_` is not allowed within types on item signatures for structs
--> $DIR/macro-span-issue-116502.rs:7:13
|
LL | _
| ^
| |
| not allowed in type signatures
| not allowed in type signatures
| not allowed in type signatures
...
LL | struct S<T = m!()>(m!(), T)
| ---- ---- in this macro invocation
| |
| in this macro invocation
LL | where
LL | T: Trait<m!()>;
| ---- in this macro invocation
|
= note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
help: use type parameters instead
|
LL ~ U
LL | };
LL | }
LL ~ struct S<U>(m!(), T)
|
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0121`.
|
