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INI File | 1995-06-30 | 2.1 KB | 51 lines |
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- Caveat: This overview does not attempt to provide an introduction to object
- orientation.
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- Object Tcl is a standard Tcl extension package that makes it possible to use
- object oriented programming concepts from within Tcl and, if required, provides
- a tight object oriented coupling to C++.
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- From the Tcl perspective, Object Tcl provides additional commands to support
- the description of classes of objects, along with attributes and methods, and
- manipulation of those classes. The concepts introduced into Tcl are:
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- Class
- Object
- Method
- Attribute
- Class Method
- Class Attribute
- Object Reference
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- In Object Tcl, a class description contains details of its behaviors, via
- methods, and state, via attributes. Object Tcl classes may have methods and
- attributes that have class scope or object scope.
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- Object Tcl classes may inherit from other classes, described in Object Tcl or
- C++, as a way of structuring and reusing common code. Both single and multiple
- inheritance is available.
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- Object Tcl classes may be instantiated to create objects of that class. The
- instantiation of a class results in an object reference that may be used to
- invoke methods upon the object. Finally, objects may be discarded.
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- A primary objective of Object Tcl is to support the reuse of classes that are
- described in C++. Object Tcl makes it possible to create new classes in Tcl
- that inherit from C++ classes. The dynamic binding of virtual methods crosses
- the boundary from Tcl to C++ and, if the method is called on the object from
- C++, will cross over into Tcl if the method is defined in the Tcl subclass.
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- The tight coupling to C++ makes it possible to build a class hierarchy or
- framework in C++ that can then be extended using the interpreted Tcl language.
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- Object Tcl | Overview | Language Reference | C++ Binding Reference | Example |
- Source Code
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- otcl@x.co.uk
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