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2007-Jun-25 22:49 UTC

[Wxruby-development] [1069] trunk/wxruby2/swig/typemap.i: Fix big memory leak in methods taking wxString as a parameter

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<title>[1069] trunk/wxruby2/swig/typemap.i: Fix big memory leak in methods
taking wxString as a parameter</title>
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<body>

<div id="msg">
<dl>
<dt>Revision</dt> <dd>1069</dd>
<dt>Author</dt> <dd>brokentoy</dd>
<dt>Date</dt> <dd>2007-06-25 18:49:21 -0400 (Mon, 25 Jun
2007)</dd>
</dl>

<h3>Log Message</h3>
<pre>Fix big memory leak in methods taking wxString as a
parameter</pre>

<h3>Modified Paths</h3>
<ul>
<li><a
href="#trunkwxruby2swigtypemapi">trunk/wxruby2/swig/typemap.i</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkwxruby2swigtypemapi"></a>
<div class="modfile"><h4>Modified:
trunk/wxruby2/swig/typemap.i (1068 => 1069)</h4>
<pre class="diff"><span>
<span class="info">---
trunk/wxruby2/swig/typemap.i&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp2007-06-25
18:37:07 UTC (rev 1068)
+++
trunk/wxruby2/swig/typemap.i&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp2007-06-25
22:49:21 UTC (rev 1069)
</span><span class="lines">@@ -1,24 +1,11 @@
</span><span class="cx"> // Copyright 2004-2007 by Kevin
Smith
</span><span class="cx"> // released under the MIT-style
wxruby2 license
</span><span class="cx"> 
</span><del>-##############################################################
-%typemap(in) wxString& {
-&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp//
$argnum: $1_type $1_name ($1_mangle) [$1_ltype]
-&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp$1 =
new wxString(StringValuePtr($input), wxConvUTF8);
-}
</del><span class="cx"> 
</span><del>-%typemap(in) const wxString& {
-&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp$1 =
new wxString(StringValuePtr($input), wxConvUTF8);
-}
-
-%typemap(in) wxString* {
-&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp$1 =
new wxString(StringValuePtr($input), wxConvUTF8);
-}
-
-%typemap(directorout) wxString, wxString& "$result =
wxString(StringValuePtr($input), wxConvUTF8);";
-
</del><ins>+// include SWIG''s built-in typemaps, eg for
OUTPUT/INPUT
</ins><span class="cx"> %include "typemaps.i"
</span><span class="cx"> 
</span><ins>+
</ins><span class="cx"> %typemap(directorargout) ( int *
OUTPUT ) {
</span><span class="cx">   if($1 != NULL)
</span><span class="cx">   {
</span><span class="lines">@@ -59,22 +46,17 @@
</span><span class="cx">   }
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-/*
-Currently incompatible with the ruby post-processing of swigged .cpp files
-Needs to be fixed in fixdeleting.rb before this can be uncommented out
-%typemap(freearg) wxString & {
-&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspdelete
$1;
-}
</del><ins>+// (ruby) String <-> wxString
+%typemap(in) wxString& "$1 = new wxString(StringValuePtr($input),
wxConvUTF8);"
+%typemap(in) wxString* "$1 = new wxString(StringValuePtr($input),
wxConvUTF8);"
</ins><span class="cx"> 
</span><del>-%typemap(freearg) const wxString& {
-&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspdelete
$1;
-}
</del><ins>+%typemap(directorout) wxString, wxString&
"$result = wxString(StringValuePtr($input), wxConvUTF8);";
</ins><span class="cx"> 
</span><del>- Removed temporarily 2006-04-16 kbs
-%typemap(freearg) wxString* {
-&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspdelete
$1;
-}
-*/
</del><ins>+// Only free the wxString argument if it has been
assigned as a heap
+// variable by the typemap - SWIG assigns the default as stack varialbes
+// - but can''t get these to work in the input typemap for now.
+%typemap(freearg) wxString & "if ( argc > $argnum - 2 ) delete
$1;"
+%typemap(freearg) wxString* "if ( argc > $argnum - 2 ) delete $1;"
</ins><span class="cx"> 
</span><span class="cx"> %typemap(directorin) wxString,
const wxString &, wxString & "$input = rb_str_new2((const char
*)$1.mb_str());";
</span><span class="cx"> 
</span></span></pre>
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