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--- at:tutorial:objects [2007/06/27 11:40] – jorge
+++ at:tutorial:objects [2013/05/17 20:23] – updated tvcutsem
@@ Line 1: / Line 1: @@
-In this section, we explain how the object-oriented programming paradigm is implemented in AmbientTalk.
-===== Objects, fields and methods =====
-In AmbientTalk, objects are not instantiated from
-classes. Rather, they are either created ex-nihilo or by cloning
-and adapting existing objects, like prototypes in the SELF programming language. The definition of such a prototypical object contains a number of fields and methods that represent the object's state and behaviour respectively.
-The following code illustrates the ex-nihilo creation of an object:
-<code>
-> def Point := object: {
-    def x := 0;
-    def y := 0;
-    def init(m,n) {
-      x := m;
-      y := n;
-    }
-    def sumofsquares() { x*x + y*y };
-  }
->><object:439658>
-</code>
-This object can be instantiated to create new points as follows:
-<code>
-> def initialPoint := Point.new(0,0)
-</code>
-===== Sending messages =====
-In AmbientTalk, computation is expressed in terms of object sending messages to one another.
-===== Cloning and instantiation =====
-===== Delegation and Dynamic Inheritance =====
-===== Delegation and cloning =====
-===== First-class Delegation =====
-===== Encapsulation =====