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https://github.com/boostorg/python.git
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56e7b2a592
* function pointer from a function should work also. * make_function/make_constructor now return object instead of a raw pointer. * module::setattr() now accepts anything which can be passed to object's constructor. * Rework upcast<> to catch more errors at compile-time instead of infinite-looping. * Rationalize class<>::def() in preparation for docstring support * Partial docstring support in module::def (untested) * dependent<> trick moved to detail namespace and separate header * Added __doc__ attribute to C++ function wrapper objects * Sunk implementation of function_object into a library source file. [SVN r14724]
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
// (C) Copyright R.W. Grosse-Kunstleve 2002.
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies. This
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// software is provided "as is" without express or implied warranty, and
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// with no claim as to its suitability for any purpose.
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#include <boost/python/make_function.hpp>
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#include <boost/python/object/class.hpp>
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#include <boost/python/tuple.hpp>
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#include <boost/python/list.hpp>
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#include <boost/python/dict.hpp>
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#include <boost/python/detail/api_placeholder.hpp>
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namespace boost { namespace python {
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namespace {
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tuple instance_reduce(object instance_obj)
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{
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list result;
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object instance_class(instance_obj.attr("__class__"));
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result.append(instance_class);
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object none;
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object getinitargs = getattr(instance_obj, "__getinitargs__", none);
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tuple initargs;
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if (getinitargs.ptr() != none.ptr()) {
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initargs = tuple(getinitargs());
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}
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result.append(initargs);
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object getstate = getattr(instance_obj, "__getstate__", none);
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object instance_dict = getattr(instance_obj, "__dict__", none);
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long len_instance_dict = 0;
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if (instance_dict.ptr() != none.ptr()) {
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len_instance_dict = len(instance_dict);
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}
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if (getstate.ptr() != none.ptr()) {
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if (len_instance_dict > 0) {
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object getstate_manages_dict = getattr(
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instance_obj, "__getstate_manages_dict__", none);
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if (getstate_manages_dict.ptr() == none.ptr()) {
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PyErr_SetString(PyExc_RuntimeError,
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"Incomplete pickle support"
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" (__getstate_manages_dict__ not set)");
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throw_error_already_set();
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}
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}
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result.append(getstate());
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}
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else if (len_instance_dict > 0) {
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result.append(instance_dict);
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}
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return tuple(result);
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}
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} // namespace
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object const& make_instance_reduce_function()
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{
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static object result(&instance_reduce);
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return result;
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}
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}} // namespace boost::python
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