Cannot use unary method taking 2 operators

Hey, I’ve probably found a bug inside parser. This code would work without problems in Scala 2. It’s a blocker for allowing to compile Scala Native with Scala 3. If it’s not a bug, but expected behaviour we would need to change our syntax for Scala 3 users.

Compiler version 3.0.1

Minimized code

class Ptr[T](var value: T):
   def `unary_!` : T = value
   def `unary_!_=`(value: T): Unit = this.value = value
end Ptr

println(!x)
!x = 10                                                                                          

Output

1 |!x = 10
  |   ^
  |   end of statement expected but '=' found

Expectation

Should not fail, since it works in Scala 2

[nicolasstucki]

Note that x.unary_! = 10 does get desugared to x.unary_!_=(10). We are probably only missing the parser rule for !x = y syntax.

[som-snytt]

Those are some great pointers.