1 | // Copyright David Abrahams 2002.
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2 | // Distributed under the Boost Software License, Version 1.0. (See
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3 | // accompanying file LICENSE_1_0.txt or copy at
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4 | // http://www.boost.org/LICENSE_1_0.txt)
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5 | #ifndef MAKE_KEYWORD_RANGE_FN_DWA2002927_HPP
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6 | # define MAKE_KEYWORD_RANGE_FN_DWA2002927_HPP
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7 |
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8 | # include <boost/python/make_function.hpp>
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9 | # include <boost/python/args_fwd.hpp>
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10 |
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11 | # include <boost/python/object/make_holder.hpp>
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12 |
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13 | # include <boost/mpl/size.hpp>
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14 |
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15 |
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16 | namespace boost { namespace python { namespace detail {
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17 |
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18 | // Think of this as a version of make_function without a compile-time
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19 | // check that the size of kw is no greater than the expected arity of
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20 | // F. This version is needed when defining functions with default
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21 | // arguments, because compile-time information about the number of
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22 | // keywords is missing for all but the initial function definition.
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23 | //
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24 | // @group make_keyword_range_function {
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25 | template <class F, class Policies>
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26 | object make_keyword_range_function(
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27 | F f
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28 | , Policies const& policies
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29 | , keyword_range const& kw)
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30 | {
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31 | return detail::make_function_aux(
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32 | f, policies, detail::get_signature(f), kw, mpl::int_<0>());
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33 | }
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34 |
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35 | template <class F, class Policies, class Signature>
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36 | object make_keyword_range_function(
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37 | F f
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38 | , Policies const& policies
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39 | , keyword_range const& kw
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40 | , Signature const& sig)
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41 | {
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42 | return detail::make_function_aux(
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43 | f, policies, sig, kw, mpl::int_<0>());
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44 | }
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45 | // }
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46 |
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47 | // Builds an '__init__' function which inserts the given Holder type
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48 | // in a wrapped C++ class instance. ArgList is an MPL type sequence
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49 | // describing the C++ argument types to be passed to Holder's
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50 | // constructor.
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51 | //
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52 | // Holder and ArgList are intended to be explicitly specified.
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53 | template <class ArgList, class Arity, class Holder, class CallPolicies>
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54 | object make_keyword_range_constructor(
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55 | CallPolicies const& policies // The CallPolicies with which to invoke the Holder's constructor
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56 | , detail::keyword_range const& kw // The (possibly empty) set of associated argument keywords
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57 | , Holder* = 0
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58 | , ArgList* = 0, Arity* = 0)
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59 | {
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60 | return detail::make_keyword_range_function(
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61 | objects::make_holder<Arity::value>
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62 | ::template apply<Holder,ArgList>::execute
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63 | , policies
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64 | , kw);
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65 | }
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66 |
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67 | }}} // namespace boost::python::detail
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68 |
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69 | #endif // MAKE_KEYWORD_RANGE_FN_DWA2002927_HPP
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