Class Object

class Class extends Object

A Class object represents a class definition; it contains static methods and properties.

Each class object is based on whatever class it extends, or Object if not specified. The global class object Object is based on Class.Prototype, which is based on Object.Prototype, so classes can inherit methods and properties from any of these base objects.

"Static" methods and properties are any methods and properties which are owned by the class object itself (and therefore do not apply to a specific instance), while methods and properties for instances of the class are owned by the class's Prototype.

"ClassObj" is used below as a placeholder for any class object, as "Class" is the Class class itself. Ordinarily, one refers to a class object by the name given in its class definition.

Table of Contents



Constructs a new instance of the class.

Obj := ClassObj(Params*)
Obj := ClassObj.Call(Params*)

This static method is typically inherited from the Object, Array or Map class. It performs the following functions:

Call can be overridden within a class definition by defining a static method, such as static Call(). This allows classes to modify or prevent the construction of new instances.

Note that Class() (literally using "Class" in this case) can be used to construct a new Class object based on Class.Prototype. However, this new object initially has no Call method as it is not a subclass of Object. It can become a subclass of Object by assigning to Base, or the Call method can be reimplemented or copied from another class. A Prototype must also be created and assigned to the class before it can be instantiated with the standard Call method.



Retrieves or sets the object on which all instances of the class are based.

Proto := ClassObj.Prototype
ClassObj.Prototype := Proto

By default, the class's Prototype contains all instance methods and dynamic properties defined within the class definition, and can be used to retrieve references to methods or property getters/setters or define new ones. The script can also define new value properties, which act as default property values for all instances.

A class's Prototype is normally based on the Prototype of its base class, so ClassObj.Prototype.base == ClassObj.base.Prototype.

Prototype is automatically defined as an own property of any class object created by a class definition.