rust/src/test/ui/cast/issue-88621.stderr

error[E0605]: non-primitive cast: `Kind2` as `u8`
  --> $DIR/issue-88621.rs:11:13
   |
LL |     let _ = Kind2::Foo() as u8;
   |             ^^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object

error: aborting due to previous error

For more information about this error, try `rustc --explain E0605`.
Disallow non-c-like but "fieldless" ADTs from being casted to integer... ... if they use arbitrary enum discriminant. Code like ```rust enum Enum { Foo = 1, Bar(), Baz{} } ``` seems to be unintentionally allowed so we couldn't disallow them now, but we could disallow them if arbitrary enum discriminant is used before 1.56 hits stable. 2021-09-24 20:58:25 +00:00			error[E0605]: non-primitive cast: `Kind2` as `u8`
			`--> $DIR/issue-88621.rs:11:13`
			`\|`
			`LL \| let _ = Kind2::Foo() as u8;`
			\| ^^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object

			`error: aborting due to previous error`

			For more information about this error, try `rustc --explain E0605`.