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error[E0277]: expected a `FnOnce<()>` closure, found `()`
--> $DIR/issue-63279.rs:7:11
|
LL | fn c() -> Closure {
| ^^^^^^^ expected an `FnOnce<()>` closure, found `()`
|
= help: the trait `FnOnce<()>` is not implemented for `()`
= note: wrap the `()` in a closure with no arguments: `|| { /* code */ }`
error[E0277]: expected a `FnOnce<()>` closure, found `()`
--> $DIR/issue-63279.rs:9:11
|
LL | || -> Closure { || () }
| ^^^^^^^ expected an `FnOnce<()>` closure, found `()`
|
= help: the trait `FnOnce<()>` is not implemented for `()`
= note: wrap the `()` in a closure with no arguments: `|| { /* code */ }`
error[E0308]: mismatched types
--> $DIR/issue-63279.rs:9:21
|
LL | || -> Closure { || () }
| ^^^^^ expected `()`, found closure
|
= note: expected unit type `()`
found closure `[closure@$DIR/issue-63279.rs:9:21: 9:23]`
help: use parentheses to call this closure
|
LL | || -> Closure { (|| ())() }
| + +++
error[E0308]: mismatched types
--> $DIR/issue-63279.rs:9:5
|
LL | || -> Closure { || () }
| ^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found closure
|
= note: expected unit type `()`
found closure `[closure@$DIR/issue-63279.rs:9:5: 9:18]`
help: use parentheses to call this closure
|
LL | (|| -> Closure { || () })()
| + +++
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.
|
