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This model combines object oriented programming with information
hiding. It helps you writing large application, where scoping is
necessary, because it provides class-oriented scoping.
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Named objects, object pointers, and object arrays can be created,
selector invocation uses the "object selector" syntax. Selector invocation
to objects and/or selectors on the stack is a bit less convenient, but
possible.
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Selector invocation and instance variable usage of the active object is
straight forward, since both make use of the active object.
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Late binding is efficient and easy to use.
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State-smart objects parse selectors. However, extensibility is provided
using a (parsing) selector
postpone
and a selector '
.
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An implementation in ANS Forth is available.
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