Thomas, On 01 Jul 2013, at 22:47, "Thomas Worthington" <thomas@technouveau.co.uk> wrote:

Why does SequencableCollection>>#remove:ifAbsent: say

self shouldNotImplement ?

All the subclasses I've looked at do implement some sort of removal methods.

Thomas

This is by design, you cannot remove elements from SequencableCollections, once created they remain the same size. If you want that, you need OrderedCollection for example. HTH, Sven -- Powering the T3 Platform - http://t3-platform.net Sven Van Caekenberghe - mailto:sven@beta9.be Beta Nine - software engineering - http://www.beta9.be