87 lines
2.5 KiB
Plaintext
87 lines
2.5 KiB
Plaintext
|
// Copyright David Abrahams 2003.
|
||
|
|
// 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)
|
||
|
|
#ifndef DEF_VISITOR_DWA2003810_HPP
|
||
|
|
# define DEF_VISITOR_DWA2003810_HPP
|
||
|
|
|
||
|
|
# include <boost/python/detail/prefix.hpp>
|
||
|
|
# include <boost/detail/workaround.hpp>
|
||
|
|
|
||
|
|
namespace boost { namespace python {
|
||
|
|
|
||
|
|
template <class DerivedVisitor> class def_visitor;
|
||
|
|
template <class T, class X1, class X2, class X3> class class_;
|
||
|
|
|
||
|
|
class def_visitor_access
|
||
|
|
{
|
||
|
|
# if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS) \
|
||
|
|
|| BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
|
||
|
|
// Tasteless as this may seem, making all members public allows member templates
|
||
|
|
// to work in the absence of member template friends.
|
||
|
|
public:
|
||
|
|
# else
|
||
|
|
template <class Derived> friend class def_visitor;
|
||
|
|
# endif
|
||
|
|
|
||
|
|
// unnamed visit, c.f. init<...>, container suites
|
||
|
|
template <class V, class classT>
|
||
|
|
static void visit(V const& v, classT& c)
|
||
|
|
{
|
||
|
|
v.derived_visitor().visit(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
// named visit, c.f. object, pure_virtual
|
||
|
|
template <class V, class classT, class OptionalArgs>
|
||
|
|
static void visit(
|
||
|
|
V const& v
|
||
|
|
, classT& c
|
||
|
|
, char const* name
|
||
|
|
, OptionalArgs const& options
|
||
|
|
)
|
||
|
|
{
|
||
|
|
v.derived_visitor().visit(c, name, options);
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
template <class DerivedVisitor>
|
||
|
|
class def_visitor
|
||
|
|
{
|
||
|
|
friend class def_visitor_access;
|
||
|
|
|
||
|
|
# if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS) \
|
||
|
|
|| BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
|
||
|
|
// Tasteless as this may seem, making all members public allows member templates
|
||
|
|
// to work in the absence of member template friends.
|
||
|
|
public:
|
||
|
|
# else
|
||
|
|
template <class T, class X1, class X2, class X3> friend class class_;
|
||
|
|
# endif
|
||
|
|
|
||
|
|
// unnamed visit, c.f. init<...>, container suites
|
||
|
|
template <class classT>
|
||
|
|
void visit(classT& c) const
|
||
|
|
{
|
||
|
|
def_visitor_access::visit(*this, c);
|
||
|
|
}
|
||
|
|
|
||
|
|
// named visit, c.f. object, pure_virtual
|
||
|
|
template <class classT, class OptionalArgs>
|
||
|
|
void visit(classT& c, char const* name, OptionalArgs const& options) const
|
||
|
|
{
|
||
|
|
def_visitor_access::visit(*this, c, name, options);
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
DerivedVisitor const& derived_visitor() const
|
||
|
|
{
|
||
|
|
return static_cast<DerivedVisitor const&>(*this);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
}} // namespace boost::python
|
||
|
|
|
||
|
|
#endif // DEF_VISITOR_DWA2003810_HPP
|