branch | jv |
changeset 20579 | 9add81aadb7a |
parent 20079 | 8d884971c2ed |
parent 20525 | d7da56a61fc0 |
child 23547 | c69c97cec351 |
--- a/ImmutableString.st Mon Oct 03 12:44:41 2016 +0100 +++ b/ImmutableString.st Sun Oct 09 21:28:18 2016 +0100 @@ -125,6 +125,18 @@ "return a writable copy of myself" ^ self copy changeClassTo:String +! + +beImmutable + "that's what I am" + + ^ self +! + +beMutable + "you never go back" + + ^ self shouldNotImplement ! ! !ImmutableString methodsFor:'copying'!