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Additions to %types so that a user can specify the code to go into the casting / conversion function

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10222 626c5289-ae23-0410-ae9c-e8d60b6d4f22
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William S Fulton 2008-01-31 22:45:59 +00:00
commit 629aae375c
5 changed files with 76 additions and 13 deletions
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@ -1,6 +1,37 @@
Version 1.3.34 (in progress)
============================
01/31/2008: wsfulton
Additions to the %types directive. Now the conversion / casting code can be
overridden to some custom code in the %types directive, like so:
%types(fromtype = totype) %{
... code to convert fromtype to totype and return ...
%}
The special variable $from will be replaced by the name of the parameter of the
type being converted from. The code must return the totype cast to void *. Example:
class Time;
class Date;
Date &Time::dateFromTime();
%types(Time = Date) %{
Time *t = (Time *)$from;
Date &d = t->dateFromTime();
return (void *) &d;
%}
resulting in the conversion / casting code looking something like:
static void *_p_TimeTo_p_Date(void *x) {
Time *t = (Time *)x;
Date &d = t->dateFromTime();
return (void *) &d;
}
This is advanced usage, please use only if you understand the runtime type system.
01/30/2008: mgossage
Small update to documentation in Typemaps.html, to warn about use of local
variables in typemaps for multiple types.
@ -26,7 +57,7 @@ Version 1.3.34 (in progress)
containers should be faster.
01/18/2008: wsfulton
Add 'directorinattributes' and 'directoroutattributes' typemap attributes
[C#] Add 'directorinattributes' and 'directoroutattributes' typemap attributes
for the imtype typemap. These should contain C# attributes which will
be generated into the C# director delegate methods.