at:tutorial:objects
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at:tutorial:objects [2007/06/29 11:01] – jorge | at:tutorial:objects [2007/06/29 14:24] – jorge | ||
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def sumOfSquares() { x*x + y*y }; | def sumOfSquares() { x*x + y*y }; | ||
} | } | ||
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> def anotherPoint := point.new(2, | > def anotherPoint := point.new(2, | ||
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Every object understands the message '' | Every object understands the message '' | ||
- | ===== Delegation and Dynamic Inheritance | + | ===== Delegation and cloning |
- | AmbientTalk features object inheritance or delegation. By means of delegation, an object can reuse and extend the defintion of another establishing a child-parent relationship. We identify two kinds of delegation relationships: | + | AmbientTalk features object inheritance or delegation. By means of delegation, an object can reuse and extend the defintion of another establishing a parent-child |
- | The following code shows how to extend objects with a **IS-A** relationship. | + | The following code shows how to extend objects with a **IS-A** relationship. It uses the '' |
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} | } | ||
} | } | ||
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- | The following code shows how to extend objects with a **SHARE-A** relationship. | + | The following code shows how to extend objects with a **SHARE-A** relationship. It uses the '' |
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} | } | ||
} | } | ||
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- | + | ===== Delegation and dynamic inheritance | |
- | These relationships defines two different semantics for clonning child objects | + | The parent of an object is bound to a field named '' |
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- | in the way | + | |
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- | . While both relationships | + | |
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- | ===== Delegation and cloning | + | |
===== First-class Delegation ===== | ===== First-class Delegation ===== |
at/tutorial/objects.txt · Last modified: 2013/05/17 20:23 by tvcutsem