kjs Library API Documentation

KJS::BooleanInstanceImp Class Reference

Inheritance diagram for KJS::BooleanInstanceImp:

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Collaboration diagram for KJS::BooleanInstanceImp:

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List of all members.

Public Member Functions

 BooleanInstanceImp (ObjectImp *proto)
virtual const ClassInfoclassInfo () const

Static Public Attributes

static const ClassInfo info = {"Boolean", 0, 0, 0}

Detailed Description

Definition at line 30 of file bool_object.h.


Member Function Documentation

virtual const ClassInfo* KJS::BooleanInstanceImp::classInfo  )  const [inline, virtual]
 

A pointer to a ClassInfo struct for this class.

This provides a basic facility for run-time type information, and can be used to check an object's class an inheritance (see inherits()). This should always return a statically declared pointer, or 0 to indicate that there is no class information.

This is primarily useful if you have application-defined classes that you wish to check against for casting purposes.

For example, to specify the class info for classes FooImp and BarImp, where FooImp inherits from BarImp, you would add the following in your class declarations:

   class BarImp : public ObjectImp {
     virtual const ClassInfo *classInfo() const { return &info; }
     static const ClassInfo info;
     // ...
   };

   class FooImp : public ObjectImp {
     virtual const ClassInfo *classInfo() const { return &info; }
     static const ClassInfo info;
     // ...
   };

And in your source file:

   const ClassInfo BarImp::info = {0, 0, 0}; // no parent class
   const ClassInfo FooImp::info = {&BarImp::info, 0, 0};

See also:
inherits()

Reimplemented from KJS::ObjectImp.

Definition at line 34 of file bool_object.h.

References info.


The documentation for this class was generated from the following files:
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This file is part of the documentation for kjs Library Version 3.4.2.
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Generated on Fri Sep 16 06:53:33 2005 by doxygen 1.4.4 written by Dimitri van Heesch, © 1997-2003