Rustc builds forever due to infinite recursion error #74201
Description
I tried this code:
struct Recurse {
recurse: Recurse
}
enum AType {
ARecurse(Recurse),
}
struct MyStruct {
atype: AType,
}
fn main() {
let x = MyStruct { atype: AType::ARecurse(Recurse{}) };
}I expected to see this happen:
error[E0072]: recursive type `Recurse` has infinite size
--> main.rs:1:1
|
1 | struct Recurse {
| ^^^^^^^^^^^^^^ recursive type has infinite size
2 | next: Recurse
| ------------- recursive without indirection
|
= help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Recurse` representable
error: aborting due to previous error
For more information about this error, try `rustc --explain E0072`.
Instead, this happened:
error[E0072]: recursive type `Recurse` has infinite size
--> main.rs:1:1
|
1 | struct Recurse {
| ^^^^^^^^^^^^^^ recursive type has infinite size
2 | next: Recurse
| ------------- recursive without indirection
|
= help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `Recurse` representable
Rustc never aborts. It gets stuck in compilation limbo.
Meta
rustc --version --verbose:
rustc 1.44.1 (c7087fe00 2020-06-17)
binary: rustc
commit-hash: c7087fe00d2ba919df1d813c040a5d47e43b0fe7
commit-date: 2020-06-17
host: x86_64-unknown-linux-gnu
release: 1.44.1
LLVM version: 9.0
No backtrace summary available as compilation never ends.