(Int(_) | Float, Int(_) | Float) => Ok(CastKind::NumericCast),
- (_, DynStar) | (DynStar, _) => {
+ (_, DynStar) => {
if fcx.tcx.features().dyn_star {
bug!("should be handled by `try_coerce`")
} else {
Err(CastError::IllegalCast)
}
}
+
+ (DynStar, _) => Err(CastError::IllegalCast),
}
}
--- /dev/null
+#![feature(dyn_star)]
+#![allow(incomplete_features)]
+
+trait Tr {}
+
+fn f(x: dyn* Tr) -> usize {
+ x as usize
+ //~^ ERROR casting `(dyn* Tr + 'static)` as `usize` is invalid
+}
+
+fn main() {}
--- /dev/null
+error[E0606]: casting `(dyn* Tr + 'static)` as `usize` is invalid
+ --> $DIR/dyn-to-rigid.rs:7:5
+ |
+LL | x as usize
+ | ^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0606`.