Quote: use immutable classes to convert a non-polymorphic specialization hierarchy into a polymorphic hierarchy; quadratic cost

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The goal of a specialization hierarchy of immutable … is that each method is a function returning … is immutable. If the state of an object … [for robustness] are not affected. … [p. 504] The immutable hierarchies are robust and flexible. … is the efficiency of its implementations: constructing an …   Google-1   Google-2

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Topic: generic operations and polymorphism (65 items)