blob: 5019e544bd562566540a1a8b2a94823bfa9f6cfd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
warning: function cannot return without recursing
--> $DIR/issue-87450.rs:5:1
|
LL | fn foo() -> impl Fn() {
| ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
...
LL | wrap(wrap(wrap(wrap(wrap(wrap(wrap(foo())))))))
| ----- recursive call site
|
= note: `#[warn(unconditional_recursion)]` on by default
= help: a `loop` may express intention better if this is on purpose
error[E0720]: cannot resolve opaque type
--> $DIR/issue-87450.rs:5:13
|
LL | fn foo() -> impl Fn() {
| ^^^^^^^^^ recursive opaque type
...
LL | wrap(wrap(wrap(wrap(wrap(wrap(wrap(foo())))))))
| ----------------------------------------------- returning here with type `impl Fn()`
...
LL | fn wrap(f: impl Fn()) -> impl Fn() {
| --------- returning this opaque type `impl Fn()`
error: aborting due to previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0720`.
|
