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// Copyright Chsritian Neumüller 2013. Use, modification and distribution is
// subject to 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.hpp"
#include <luabind/intrusive_ptr_converter.hpp>
#include <luabind/luabind.hpp>
#include <boost/noncopyable.hpp>
#include <iostream>
using boost::intrusive_ptr;
namespace {
struct B: private boost::noncopyable, counted_type<B>
{
B(int val_): ref_cnt(0), val(val_) {}
virtual ~B() {
std::cout << "~B\n";
TEST_CHECK(ref_cnt == 0);
}
int ref_cnt;
int val;
};
COUNTER_GUARD(B);
struct D: B
{
D(int val_): B(val_) {}
};
void intrusive_ptr_add_ref(B* b)
{
++b->ref_cnt;
}
void intrusive_ptr_release(B* b)
{
if (!--b->ref_cnt)
delete b;
}
void needs_b(intrusive_ptr<B> pb, int expected_rc)
{
TEST_CHECK(pb->ref_cnt == expected_rc);
}
void needs_d(intrusive_ptr<D> pd)
{
TEST_CHECK(pd->ref_cnt == 2);
}
intrusive_ptr<B> filter_b(intrusive_ptr<B> pb)
{
TEST_CHECK(pb->ref_cnt == 2);
return pb;
}
} // namespace unnamed
void test_main(lua_State* L)
{
using namespace luabind;
module(L) [
class_<B, intrusive_ptr<B> >("B")
.def(constructor<int>())
.def_readonly("val", &B::val)
.def_readonly("ref_cnt", &B::ref_cnt),
class_<D, B, intrusive_ptr<D> >("D")
.def(constructor<int>()),
def("needs_b", &needs_b),
def("needs_d", &needs_d),
def("filter_b", &filter_b)
];
DOSTRING(L,
"d = D(1)\n"
"print(d.val, d.ref_cnt)\n"
"assert(d.val == 1)\n"
"assert(d.ref_cnt == 1)\n"
);
DOSTRING(L,
"needs_d(d)\n"
"needs_b(d, 2)\n"
);
DOSTRING(L,
"bd = filter_b(d)\n"
"assert(bd.val == 1)\n"
"assert(bd.ref_cnt == 2)\n"
"needs_b(bd, 3)\n"
"assert(bd.ref_cnt == 2)\n"
);
DOSTRING(L,
"d = nil\n"
"collectgarbage()\n"
"collectgarbage()\n"
"assert(bd.ref_cnt == 1)\n"
);
}
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