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1 | #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
2 | ||
3 | #include <boost/proto/detail/preprocessed/args.hpp> | |
4 | ||
5 | #elif !defined(BOOST_PP_IS_ITERATING) | |
6 | ||
7 | /// INTERNAL ONLY | |
8 | /// | |
9 | #define BOOST_PROTO_DEFINE_CHILD_N(Z, N, DATA) \ | |
10 | typedef BOOST_PP_CAT(Arg, N) BOOST_PP_CAT(child, N); \ | |
11 | /**< INTERNAL ONLY */ | |
12 | ||
13 | /// INTERNAL ONLY | |
14 | /// | |
15 | #define BOOST_PROTO_DEFINE_VOID_N(z, n, data) \ | |
16 | typedef mpl::void_ BOOST_PP_CAT(child, n); \ | |
17 | /**< INTERNAL ONLY */ | |
18 | ||
19 | #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) | |
20 | #pragma wave option(preserve: 2, line: 0, output: "preprocessed/args.hpp") | |
21 | #endif | |
22 | ||
23 | /////////////////////////////////////////////////////////////////////////////// | |
24 | /// \file args.hpp | |
25 | /// Contains definition of \c term\<\>, \c list1\<\>, \c list2\<\>, ... | |
26 | /// class templates. | |
27 | // | |
28 | // Copyright 2008 Eric Niebler. Distributed under the Boost | |
29 | // Software License, Version 1.0. (See accompanying file | |
30 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
31 | ||
32 | #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) | |
33 | #pragma wave option(preserve: 1) | |
34 | #endif | |
35 | ||
36 | /// \brief A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. | |
37 | /// | |
38 | /// A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. | |
39 | /// The types in the sequence correspond to the children of a node in an expression tree. | |
40 | template< typename Arg0 > | |
41 | struct term | |
42 | { | |
43 | static const long arity = 0; | |
44 | typedef Arg0 child0; | |
45 | BOOST_PP_REPEAT_FROM_TO(1, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_DEFINE_VOID_N, ~) | |
46 | ||
47 | /// INTERNAL ONLY | |
48 | /// | |
49 | typedef Arg0 back_; | |
50 | }; | |
51 | ||
52 | #define BOOST_PP_ITERATION_PARAMS_1 \ | |
53 | (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/args.hpp>)) | |
54 | #include BOOST_PP_ITERATE() | |
55 | ||
56 | #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) | |
57 | #pragma wave option(output: null) | |
58 | #endif | |
59 | ||
60 | #undef BOOST_PROTO_DEFINE_VOID_N | |
61 | #undef BOOST_PROTO_DEFINE_CHILD_N | |
62 | ||
63 | #else | |
64 | ||
65 | #define N BOOST_PP_ITERATION() | |
66 | ||
67 | /// \brief A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. | |
68 | /// | |
69 | /// A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. | |
70 | /// The types in the sequence correspond to the children of a node in an expression tree. | |
71 | template< BOOST_PP_ENUM_PARAMS(N, typename Arg) > | |
72 | struct BOOST_PP_CAT(list, N) | |
73 | { | |
74 | static const long arity = N; | |
75 | BOOST_PP_REPEAT(N, BOOST_PROTO_DEFINE_CHILD_N, ~) | |
76 | BOOST_PP_REPEAT_FROM_TO(N, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_DEFINE_VOID_N, ~) | |
77 | ||
78 | /// INTERNAL ONLY | |
79 | /// | |
80 | typedef BOOST_PP_CAT(Arg, BOOST_PP_DEC(N)) back_; | |
81 | }; | |
82 | ||
83 | #undef N | |
84 | ||
85 | #endif |