diff options
| author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2013-06-25 22:59:01 +0000 |
|---|---|---|
| committer | <> | 2013-09-27 11:49:28 +0000 |
| commit | 8c4528713d907ee2cfd3bfcbbad272c749867f84 (patch) | |
| tree | c09e2ce80f47b90c85cc720f5139089ad9c8cfff /libs/python/pyste/doc/adding_new_methods.html | |
| download | boost-tarball-baserock/morph.tar.gz | |
Imported from /home/lorry/working-area/delta_boost-tarball/boost_1_54_0.tar.bz2.boost_1_54_0baserock/morph
Diffstat (limited to 'libs/python/pyste/doc/adding_new_methods.html')
| -rw-r--r-- | libs/python/pyste/doc/adding_new_methods.html | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/libs/python/pyste/doc/adding_new_methods.html b/libs/python/pyste/doc/adding_new_methods.html new file mode 100644 index 000000000..afa772bcc --- /dev/null +++ b/libs/python/pyste/doc/adding_new_methods.html @@ -0,0 +1,79 @@ +<html> +<head> +<!-- Generated by the Spirit (http://spirit.sf.net) QuickDoc --> +<title>Adding New Methods</title> +<link rel="stylesheet" href="theme/style.css" type="text/css"> +<link rel="prev" href="global_variables.html"> +<link rel="next" href="inserting_code.html"> +</head> +<body> +<table width="100%" height="48" border="0" cellspacing="2"> + <tr> + <td><img src="../../../../boost.png"> + </td> + <td width="85%"> + <font size="6" face="Verdana, Arial, Helvetica, sans-serif"><b>Adding New Methods</b></font> + </td> + </tr> +</table> +<br> +<table border="0"> + <tr> + <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> + <td width="30"><a href="global_variables.html"><img src="theme/l_arr.gif" border="0"></a></td> + <td width="20"><a href="inserting_code.html"><img src="theme/r_arr.gif" border="0"></a></td> + </tr> +</table> +<p> +Suppose that you want to add a function to a class, turning it into a member +function:</p> +<code><pre> + <span class=keyword>struct </span><span class=identifier>World + </span><span class=special>{ + </span><span class=keyword>void </span><span class=identifier>set</span><span class=special>(</span><span class=identifier>std</span><span class=special>::</span><span class=identifier>string </span><span class=identifier>msg</span><span class=special>) { </span><span class=keyword>this</span><span class=special>-></span><span class=identifier>msg </span><span class=special>= </span><span class=identifier>msg</span><span class=special>; } + </span><span class=identifier>std</span><span class=special>::</span><span class=identifier>string </span><span class=identifier>msg</span><span class=special>; + }; + + </span><span class=identifier>std</span><span class=special>::</span><span class=identifier>string </span><span class=identifier>greet</span><span class=special>(</span><span class=identifier>World</span><span class=special>& </span><span class=identifier>w</span><span class=special>) + { + </span><span class=keyword>return </span><span class=identifier>w</span><span class=special>.</span><span class=identifier>msg</span><span class=special>; + } +</span></pre></code> +<p> +Here, we want to make <tt>greet</tt> work as a member function of the class <tt>World</tt>. We do +that using the <tt>add_method</tt> construct:</p> +<code><pre> + <span class=identifier>W </span><span class=special>= </span><span class=identifier>Class</span><span class=special>(</span><span class=string>"World"</span><span class=special>, </span><span class=string>"hello.h"</span><span class=special>) + </span><span class=identifier>add_method</span><span class=special>(</span><span class=identifier>W</span><span class=special>, </span><span class=string>"greet"</span><span class=special>) +</span></pre></code> +<p> +Notice also that then you can rename it, set its policy, just like a regular +member function:</p> +<code><pre> + <span class=identifier>rename</span><span class=special>(</span><span class=identifier>W</span><span class=special>.</span><span class=identifier>greet</span><span class=special>, </span><span class=literal>'Greet'</span><span class=special>) +</span></pre></code> +<p> +Now from Python:</p> +<code><pre> + <span class=special>>>> </span><span class=identifier>import </span><span class=identifier>hello + </span><span class=special>>>> </span><span class=identifier>w </span><span class=special>= </span><span class=identifier>hello</span><span class=special>.</span><span class=identifier>World</span><span class=special>() + >>> </span><span class=identifier>w</span><span class=special>.</span><span class=identifier>set</span><span class=special>(</span><span class=literal>'Ni'</span><span class=special>) + >>> </span><span class=identifier>w</span><span class=special>.</span><span class=identifier>greet</span><span class=special>() + </span><span class=literal>'Ni' + </span><span class=special>>>> </span><span class=identifier>print </span><span class=literal>'Oh no! The knights who say Ni!' + </span><span class=identifier>Oh </span><span class=identifier>no</span><span class=special>! </span><span class=identifier>The </span><span class=identifier>knights </span><span class=identifier>who </span><span class=identifier>say </span><span class=identifier>Ni</span><span class=special>! +</span></pre></code> +<table border="0"> + <tr> + <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> + <td width="30"><a href="global_variables.html"><img src="theme/l_arr.gif" border="0"></a></td> + <td width="20"><a href="inserting_code.html"><img src="theme/r_arr.gif" border="0"></a></td> + </tr> +</table> +<br> +<hr size="1"><p class="copyright">Copyright © 2003 Bruno da Silva de Oliveira<br>Copyright © 2002-2003 Joel de Guzman<br><br> +<font size="2">Distributed under + the Boost Software License, Version 1.0. (See accompanying file + LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) </font> </p> +</body> +</html> |