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Results tagged with immutability
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user 81351
Immutability is the inability to modify data after it has been created. Modifications are instead made by copying the data. A property of immutable data is that it is *referentially transparent*.
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Immutable subclass of a Set class
I would recommend doing it the other way around, making ImmutableSet the base class and encapsulating the functionality you need.
class ImmutableSet implements \ArrayAccess, \Countable, \IteratorAggr …
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