[Swig-devel] [ swig-Patches-3224663 ] Tcl: NULL bug fix and hash table method lookup

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Patches item #3224663, was opened at 2011-03-18 23:20
Message generated for change (Tracker Item Submitted) made by delbaere
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Christian Delbaere (delbaere)
Assigned to: Nobody/Anonymous (nobody)
Summary: Tcl: NULL bug fix and hash table method lookup

Initial Comment:
This patch addresses two issues:
1. Currently if a wrapped function returns a NULL value, a "NULL" command will be created in the Tcl interpreter.  Calling this command will cause a segmentation fault.  A very small part of this patch makes a change to not create the "NULL" command when returning a NULL object value.

2. The current implementation searches for class methods using a linear search.  This can cause performance issues in wrappers for classes with many member functions.  This patch adds a method hash table to classes and changes method name lookup to use the hash table instead of doing a linear search.

I've also added a Tcl run-time test for null_pointer to check for the unwanted "NULL" command.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=301645&aid=3224663&group_id=1645