Inheritance/Multiple: Difference between revisions
Added Wren
Mercerenies (talk | contribs) (Latitude language added) |
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superclass Camera MobilePhone
}</lang>
=={{header|Wren}}==
Wren does not support either multiple inheritance or interfaces.
However, multiple inheritance can be simulated by inheriting from a single class and then embedding objects of other classes and wrapping their methods.
<lang ecmascript>class Camera {
construct new() {}
snap() { System.print("taking a photo") }
}
class Phone {
construct new() {}
call() { System.print("calling home") }
}
class CameraPhone is Camera {
construct new(phone) { _phone = phone } // uses composition for the Phone part
// inherits Camera's snap() method
// Phone's call() method can be wrapped
call() { _phone.call() }
}
var p = Phone.new()
var cp = CameraPhone.new(p)
cp.snap()
cp.call()</lang>
{{out}}
<pre>
taking a photo
calling home
</pre>
=={{header|zkl}}==
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