[C++-sig] Wrapping an abstract interface

[Ralf W. Grosse-Kunstleve]

--- Andreas Kloeckner <ak at ixion.net> wrote:
> This boils down to this: Can I make it appear from Python as if a class
> has a method for which no member function in C++ actually exists (but
> maybe just a regular function)?

Definitely yes. With 1.31.0 you can do this even with constructors.
Methods:

Your free function must take the wrapped type as the first argument:

void addl_method(wrapped_t const& self);

class_<wrapped_t>("wrapped_t")
  .def("addl_method", addl_method)
;

Constructors:

See boost/libs/python/test/injected.cpp

Ralf


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