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// Copyright David Abrahams 2002.
// Copyright Stefan Seefeld 2016.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include "test_class.hpp"
using namespace boost::python;
typedef test_class<> X;
typedef test_class<1> Y;
template <class T>
struct functions
{
static int look(shared_ptr<T> const& x)
{
return (x.get()) ? x->value() : -1;
}
static void store(shared_ptr<T> x)
{
storage = x;
}
static void release_store()
{
store(shared_ptr<T>());
}
static void modify(shared_ptr<T>& x)
{
x.reset();
}
static shared_ptr<T> get() { return storage; }
static shared_ptr<T> &get1() { return storage; }
static int look_store()
{
return look(get());
}
template <class C>
static void expose(C const& c)
{
def("look", &look);
def("store", &store);
def("modify", &modify);
def("identity", &identity);
def("null", &null);
const_cast<C&>(c)
.def("look", &look)
.staticmethod("look")
.def("store", &store)
.staticmethod("store")
.def("modify", &modify)
.staticmethod("modify")
.def("look_store", &look_store)
.staticmethod("look_store")
.def("identity", &identity)
.staticmethod("identity")
.def("null", &null)
.staticmethod("null")
.def("get1", &get1, return_internal_reference<>())
.staticmethod("get1")
.def("get", &get)
.staticmethod("get")
.def("count", &T::count)
.staticmethod("count")
.def("release", &release_store)
.staticmethod("release")
;
}
static shared_ptr<T> identity(shared_ptr<T> x) { return x; }
static shared_ptr<T> null(T const&) { return shared_ptr<T>(); }
static shared_ptr<T> storage;
};
template <class T> shared_ptr<T> functions<T>::storage;
struct Z : test_class<2>
{
Z(int x) : test_class<2>(x) {}
virtual int v() { return this->value(); }
};
struct ZWrap : Z
{
ZWrap(PyObject* self, int x)
: Z(x), m_self(self) {}
virtual int v() { return call_method<int>(m_self, "v"); }
int default_v() { return Z::v(); }
PyObject* m_self;
};
struct YY : Y
{
YY(int n) : Y(n) {}
};
struct YYY : Y
{
YYY(int n) : Y(n) {}
};
shared_ptr<Y> factory(int n)
{
return shared_ptr<Y>(n < 42 ? new Y(n) : new YY(n));
}
// regressions from Nicodemus
struct A
{
virtual ~A() {}; // silence compiler warnings
virtual int f() = 0;
static int call_f(shared_ptr<A>& a) { return a->f(); }
};
struct B: A
{
int f() { return 1; }
};
shared_ptr<A> New(bool make)
{
return shared_ptr<A>( make ? new B() : 0 );
}
struct A_Wrapper: A
{
A_Wrapper(PyObject* self_):
A(), self(self_) {}
int f() {
return call_method< int >(self, "f");
}
PyObject* self;
};
// ------
// from Neal Becker
struct Test {
shared_ptr<X> x;
};
// ------
BOOST_PYTHON_MODULE(MODULE)
{
class_<A, shared_ptr<A_Wrapper>, boost::noncopyable>("A")
.def("call_f", &A::call_f)
.staticmethod("call_f")
;
// This is the ugliness required to register a to-python converter
// for shared_ptr<A>.
objects::class_value_wrapper<
shared_ptr<A>
, objects::make_ptr_instance<A, objects::pointer_holder<shared_ptr<A>,A> >
>();
def("New", &New);
def("factory", factory);
functions<X>::expose(
class_<X, boost::noncopyable>("X", init<int>())
.def("value", &X::value)
);
functions<Y>::expose(
class_<Y, shared_ptr<Y> >("Y", init<int>())
.def("value", &Y::value)
);
class_<YY, bases<Y>, boost::noncopyable>("YY", init<int>())
;
class_<YYY, shared_ptr<YYY>, bases<Y> >("YYY", init<int>())
;
functions<Z>::expose(
class_<Z, ZWrap>("Z", init<int>())
.def("value", &Z::value)
.def("v", &Z::v, &ZWrap::default_v)
);
// from Neal Becker
class_<Test> ("Test")
.def_readonly ("x", &Test::x, "x")
;
// ------
}
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