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--- at:tutorial:objects [2007/06/29 14:31] – jorge
+++ at:tutorial:objects [2007/06/29 14:58] – jorge
@@ Line 91: / Line 91: @@
 ===== First-class Delegation =====
 ===== Encapsulation =====
+In AmbientTalk, all fields and methods are "public" via selection. Still, a field or method can be made "private" by means of lexical scoping. The following code shows the definition of an object inside the definition of a function. The fields and methods of this object cannot be accessed directly from outside the funuction.
+<code>
+> def makeObject(hidden) {
+    object: {
+      def foo() { /* use hidden */ }
+    }
+  }
+</code>
+Due to the encapsulation of this object the following instruction fails:
+<code>
+> makeObject(5).hidden;
+>>Lookup failure : selector hidden could not be found in
+  <object:5068254>
+</code>