jyapayne/swig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mention and public access

Browse source 
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9899 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
William S Fulton 2007-08-15 20:36:40 +00:00
commit 24c6f53f10
1 changed files with 6 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Doc/Manual/SWIGPlus.html
View file

@ -46,7 +46,7 @@
<li><a href="#SWIGPlus_nn27">Comments on overloading</a> <li><a href="#SWIGPlus_nn27">Comments on overloading</a>
</ul> </ul>
<li><a href="#SWIGPlus_nn28">Wrapping overloaded operators</a> <li><a href="#SWIGPlus_nn28">Wrapping overloaded operators</a>
<li><a href="#SWIGPlus_nn29">Class extension</a> <li><a href="#SWIGPlus_class_extension">Class extension</a>
<li><a href="#SWIGPlus_nn30">Templates</a> <li><a href="#SWIGPlus_nn30">Templates</a>
<li><a href="#SWIGPlus_nn31">Namespaces</a> <li><a href="#SWIGPlus_nn31">Namespaces</a>
<li><a href="#SWIGPlus_renaming_templated_types_namespaces">Renaming templated types in namespaces</a> <li><a href="#SWIGPlus_renaming_templated_types_namespaces">Renaming templated types in namespaces</a>
@ -2731,7 +2731,7 @@ are ignored as well as conversion operators.
</li> </li>
</ul> </ul>
<H2><a name="SWIGPlus_nn29"></a>6.17 Class extension</H2> <H2><a name="SWIGPlus_class_extension"></a>6.17 Class extension</H2>
<p> <p>
@ -2786,6 +2786,8 @@ command.
The C++ 'this' pointer is often needed to access member variables, methods etc. The C++ 'this' pointer is often needed to access member variables, methods etc.
The <tt>$self</tt> special variable should be used wherever you could use 'this'. The <tt>$self</tt> special variable should be used wherever you could use 'this'.
The example above demonstrates this for accessing member variables. The example above demonstrates this for accessing member variables.
Note that the members dereferenced by <tt>$self</tt> must be public members as the code is ultimately generated
into a global function and so will not have any access to non-public members.
The implicit 'this' pointer that is present in C++ methods is not present in <tt>%extend</tt> methods. The implicit 'this' pointer that is present in C++ methods is not present in <tt>%extend</tt> methods.
In order to access anything in the extended class or its base class, an explicit 'this' is required. In order to access anything in the extended class or its base class, an explicit 'this' is required.
The following example shows how one could access base class members: The following example shows how one could access base class members:
@ -2802,8 +2804,8 @@ struct Derived : Base {
}; };
%extend Derived { %extend Derived {
virtual void method(int v) { virtual void method(int v) {
$self-&gt;Base::method(v); $self-&gt;Base::method(v); // akin to this-&gt;Base::method(v);
$self-&gt;value = v; $self-&gt;value = v; // akin to this-&gt;value = v;
... ...
} }
} }