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error[E0792]: expected generic type parameter, found `&str`
--> $DIR/recursive-ice-101862.rs:6:19
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LL | pub fn ice(x: impl AsRef<str>) -> impl IntoIterator<Item = ()> {
| --------------- this generic parameter must be used with a generic type parameter
LL |
LL | vec![].append(&mut ice(x.as_ref()));
| ^^^^^^^^^^^^^^^^^^^^
warning: function cannot return without recursing
--> $DIR/recursive-ice-101862.rs:4:1
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LL | pub fn ice(x: impl AsRef<str>) -> impl IntoIterator<Item = ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
LL |
LL | vec![].append(&mut ice(x.as_ref()));
| --------------- recursive call site
|
= help: a `loop` may express intention better if this is on purpose
= note: `#[warn(unconditional_recursion)]` on by default
error: aborting due to 1 previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0792`.
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