MHO on immutability
-1 to immutability enforced by the core +1 to immutability enforced by standard Ant tasks
My reasons:
I have always seen the core as a repository of values which may be written as well as read. In Ant1 that means primarily string properties. In Ant2, we intend to unify properties with other data types. Can we be so sure that all such values will also be immutable. Maybe or maybe not. I would rather keep the core simple and implement immutability at the task level.
That allows the Ant tasks to make the decision about immutability depending on the type of data they are manipulating. It also allows Task writers to decide if they want to implement mutable data values (not necessarily just string properties). I don't see why we want to force immutability at the core level. It is an unecessary restriction.
Conor
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