[Swig-devel] [ swig-Bugs-1877490 ] option -O conflicts with %pythonnondynamic and %extend

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Bugs item #1877490, was opened at 2008-01-22 17:38
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Category: python
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Lars Immisch (larsimmisch)
Assigned to: Nobody/Anonymous (nobody)
Summary: option -O conflicts with %pythonnondynamic and %extend 

Initial Comment:
The option -O conflicts with %pythonnondynamic and %extend.

The interface below uses %feature(python:nondynamic) and %extend.

When it is compiled with -O, the resulting shadow module cannot be loaded.

If -O is omitted whenn swigging, the resulting module can be imported.

Also, this bug was not present in swig 1.3.28.

%module nondynamic
%{
	typedef struct
	{
		int bar;
		int baz;
	} FOO;
%}

%feature("python:nondynamic");

typedef struct
{
	int bar;
	int baz;
} FOO;

%extend FOO {
	void clear(void)
	{
		self->bar = 0;
		self->baz = 0;
	}
};

When this interface is compiled with: 

swig -python -O

an attempt to load the module will fail:

>>> import nondynamic
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "nondynamic.py", line 65, in <module>
    FOO.clear = new_instancemethod(_nondynamic.FOO_clear,None,FOO)
  File "nondynamic.py", line 50, in set_attr
    raise AttributeError("You cannot add attributes to %s" % self)
AttributeError: You cannot add attributes to <class 'nondynamic.FOO'>


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