Hi All,
I'm trying to write in python a object implementing several GInterfaces.
My problem is that several functions in these interfaces have the same
name. By example I have something like:
In IDebuggerFrame
void list(void) // List all frames
In IDebuggerBreakpoint
void list(void) // List all breakpoints
In C, these functions are called with
void idebugger_frame_list(IDebuggerFrame *obj)
{
IDEBUGGER_FRAME(obj)->list();
}
void idebugger_breakpoint_list(IDebuggerBreakpoint *obj)
{
IDEBUGGER_BREAKPOINT(obj)->list();
}
There is no problem here, an object implementing both interfaces will
have 2 different structure with a list member in each one.
In python, the wrapper of both interfaces will look for the same do_list
method.
I can override both do_list methods to use a different function in both
case by example do_list_frame and do_list_breakpoint here. But then I
have a problem in the function initializing the interface
__IDebuggerBreakpoint__interface_init.
There is a code like the following:
py_method = pytype? PyObject_GetAttrString((PyObject *) pytype,
"do_list") : NULL;
if (py_method && !PyObject_TypeCheck(py_method, &PyCFunction_Type)) {
iface->list = wrap_IDebuggerBreakpoint__proxy_do_list;
} else {
PyErr_Clear();
if (parent_iface) {
iface->list = parent_iface->list;
}
Py_XDECREF(py_method);
This code is generated in codegen.py in write_virtuals function. The
"do_list" string is generated by adding "do_" to the function name. And
this function name is used to name the iface field.
What is the best way to handle this ?
I can think about a few solutions.
1. Add in the .defs file another name, let's call it python name, like
we already have c name and use it instead of do_* name. If this name is
not defined generates a name adding "do_" before the function name like
now. I can write a patch for this.
2. Allow to override the __IDebuggerBreakpoint__interface_init function,
so I can provide another implementation of this function, using more
complex name. I have tried a bit but didn't succeed perhaps it's already
possible. I need to override all functions using a special name too.
Perhaps I can simply not use codegen for these interfaces and write
everything by hand.
3. Rename my GInterface function in the C code. It's the easiest
solution, but the function name is C will be very long and I would
prefer to handle problem added by the python wrapper in python code.
Regards,
Sébastien
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