ceylon/ceylon-spec — Issue #223: Missing error for concrete methods in interfaces
Author: FroMage
Created: 2012-03-08 16:45:07+00:00
State: open
Labels: bug, high priority

If I write:

```java
class MyIterable() satisfies Iterable{
shared actual Iterator iterator {
return bottom;
}
}
```

I got:

> formal member empty of Iterable not implemented in class hierarchy

I was expecting an error/warning in the IDE (nothing), and an error message that would mention that the issue is caused by missing support for concrete methods in interfaces.