boost/local_function/aux_/macro/code_/functor.hpp
// Copyright (C) 2009-2012 Lorenzo Caminiti // Distributed under the Boost Software License, Version 1.0 // (see accompanying file LICENSE_1_0.txt or a copy at // http://www.boost.org/LICENSE_1_0.txt) // Home at http://www.boost.org/libs/local_function #ifndef BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_HPP_ #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_HPP_ #include <boost/local_function/config.hpp> #include <boost/local_function/aux_/symbol.hpp> #include <boost/local_function/aux_/function.hpp> #include <boost/local_function/aux_/add_pointed_const.hpp> #include <boost/local_function/aux_/member.hpp> #include <boost/local_function/aux_/nobind.hpp> #include <boost/local_function/aux_/macro/decl.hpp> #include <boost/local_function/aux_/macro/typeof.hpp> #include <boost/local_function/aux_/macro/code_/result.hpp> #include <boost/local_function/aux_/macro/code_/bind.hpp> #include <boost/local_function/aux_/preprocessor/traits/decl_params.hpp> #include <boost/local_function/aux_/preprocessor/traits/decl_binds.hpp> #include <boost/local_function/aux_/preprocessor/traits/decl_const_binds.hpp> #include <boost/local_function/detail/preprocessor/keyword/auto.hpp> #include <boost/local_function/detail/preprocessor/keyword/register.hpp> #include <boost/local_function/detail/preprocessor/keyword/thisunderscore.hpp> #include <boost/utility/identity_type.hpp> #include <boost/scope_exit.hpp> #include <boost/type_traits/add_const.hpp> #include <boost/preprocessor/cat.hpp> #include <boost/preprocessor/punctuation/comma_if.hpp> #include <boost/preprocessor/control/expr_iif.hpp> #include <boost/preprocessor/control/iif.hpp> #include <boost/preprocessor/facilities/expand.hpp> #include <boost/preprocessor/facilities/is_empty.hpp> #include <boost/preprocessor/facilities/empty.hpp> #include <boost/preprocessor/facilities/identity.hpp> #include <boost/preprocessor/repetition/enum.hpp> #include <boost/preprocessor/repetition/repeat.hpp> #include <boost/preprocessor/arithmetic/inc.hpp> #include <boost/preprocessor/arithmetic/sub.hpp> #include <boost/preprocessor/arithmetic/add.hpp> #include <boost/preprocessor/logical/bitor.hpp> #include <boost/preprocessor/logical/bitand.hpp> #include <boost/preprocessor/logical/compl.hpp> #include <boost/preprocessor/tuple/elem.hpp> #include <boost/preprocessor/tuple/eat.hpp> #include <boost/preprocessor/tuple/rem.hpp> #include <boost/preprocessor/list/adt.hpp> #include <boost/preprocessor/list/size.hpp> #include <boost/preprocessor/list/for_each_i.hpp> #include <boost/preprocessor/list/first_n.hpp> // PRIVATE // #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CLASS_TYPE_(id) \ BOOST_LOCAL_FUNCTION_AUX_SYMBOL( (functor)(id) ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_F_TYPE_ \ BOOST_LOCAL_FUNCTION_AUX_SYMBOL( (function_type) ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BODY_FUNC_ \ BOOST_LOCAL_FUNCTION_AUX_SYMBOL( (body) ) // Unbind parameters. // i: 1 for 1st param, 2 for 2nd, ... (start from 1 not 0). #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_NAME_(i) \ /* this must be a generic parameter name because type and name */ \ /* are not separate tokens in the macro syntax so name is not available */ \ /* separately from its type */ \ BOOST_PP_CAT(arg, i) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_NAME_ENUM_( \ r, unused, i, param_traits) \ BOOST_PP_COMMA_IF(i) /* enumeration commas */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_NAME_(BOOST_PP_INC(i)) // i: 1 for 1st param, 2 for 2nd, ... (start from 1 not 0). #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_TYPE_(typename01, i) \ /* the parameter type must be accessed using function traits from */ \ /* function type because it is not available to the macro syntax */ \ /* separately from the parameter name */ \ BOOST_PP_EXPR_IIF(typename01, typename) \ ::boost::function_traits< \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_F_TYPE_ \ >::BOOST_PP_CAT(BOOST_PP_CAT(arg, i), _type) \ #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_ARG_TYPEDEF_( \ r, typename01, i, param_traits) \ typedef \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_TYPE_(typename01, \ BOOST_PP_INC(i)) \ /* name must follow Boost.FunctionTraits arg1_type, arg2_type, ... */ \ BOOST_PP_CAT(BOOST_PP_CAT(arg, BOOST_PP_INC(i)), _type) \ ; #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_DECL_( \ r, typename01, i, param_traits) \ BOOST_PP_EXPR_IIF(typename01, typename) \ ::boost::call_traits< \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_TYPE_(typename01, \ BOOST_PP_INC(i)) \ >::param_type \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_NAME_(BOOST_PP_INC(i)) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_DECL_ENUM_( \ r, typename01, i, param_traits) \ BOOST_PP_COMMA_IF(i) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_DECL_(r, typename01, i, \ param_traits) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_PARAM_ARG_DECL_( \ r, typename01, i, param_traits) \ , BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_DECL_(r, typename01, i, \ param_traits) // Precondition: !EMPTY(DEFAULT(param_traits)) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_DEFAULT_ASSIGNMENT_( \ param_traits) \ = BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_DEFAULT_REMOVE_FRONT( \ BOOST_LOCAL_FUNCTION_AUX_PP_PARAM_TRAITS_DEFAULT(param_traits)) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_DECL_ENUM_( \ r, default01, i, param_traits) \ BOOST_PP_COMMA_IF(i) \ BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_AUTO_REMOVE_BACK( \ BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_REGISTER_REMOVE_BACK( \ BOOST_LOCAL_FUNCTION_AUX_PP_PARAM_TRAITS_DECL(param_traits) \ )) \ BOOST_PP_IIF(BOOST_PP_COMPL(default01), \ BOOST_PP_TUPLE_EAT(1) /* without default */ \ , BOOST_PP_IIF(BOOST_PP_IS_EMPTY( \ BOOST_LOCAL_FUNCTION_AUX_PP_PARAM_TRAITS_DEFAULT(param_traits)), \ BOOST_PP_TUPLE_EAT(1) /* has no default */ \ , /* else, with default and has default */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_DEFAULT_ASSIGNMENT_ \ ))(param_traits) // Bound parameters. #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAMS_ \ bind_params /* constructor void* param */ #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_VAR_(i) \ /* named `bind0`, `bind1`, ... */ \ BOOST_LOCAL_FUNCTION_AUX_SYMBOL( (bind)(i) ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_THIS_ \ BOOST_LOCAL_FUNCTION_AUX_SYMBOL( (bind_this) ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_STATIC_BIND_MEMBER_THIS_( \ id) \ , static_cast< BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CLASS_TYPE_(id)* >( \ object)->BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_THIS_ #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_TYPE_( \ id, typename01, offset, i, bind_var_without_type) \ BOOST_PP_EXPR_IIF(typename01, typename) \ BOOST_SCOPE_EXIT_DETAIL_PARAMS_T(id):: \ BOOST_SCOPE_EXIT_DETAIL_PARAM_T(id, BOOST_PP_ADD(i, offset), \ bind_var_without_type) \ #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_MEMBER_BIND_ENUM_( \ r, offset, i, bind_traits) \ BOOST_PP_COMMA_IF(i) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_VAR_( \ BOOST_PP_ADD(offset, i)) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_TYPE_( \ r, id_typename_offset_const, i, bind_var_without_type) \ /* IMPORTANT: here can't use `PP_KEYWORD_IS_THISUNDERSCORE_FRONT()` */ \ /* because some `param_name` might start with non-alphanumeric symbol */ \ /* `&` (but that is never the case for `this`) */ \ BOOST_PP_IIF(BOOST_PP_COMPL(BOOST_PP_TUPLE_ELEM(4, 3, \ id_typename_offset_const)), \ BOOST_PP_EMPTY \ , BOOST_PP_IIF( \ BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_IS_THISUNDERSCORE_BACK( \ bind_var_without_type), \ /* pointed obj const */ \ BOOST_PP_EXPR_IIF(BOOST_PP_TUPLE_ELEM(4, 1, id_typename_offset_const), \ typename \ ) \ BOOST_PP_IDENTITY( ::boost::local_function::aux::add_pointed_const< ) \ , \ BOOST_PP_EXPR_IIF(BOOST_PP_TUPLE_ELEM(4, 1, id_typename_offset_const), \ typename \ ) \ BOOST_PP_IDENTITY( ::boost::add_const< ) /* outer type const */ \ ))() \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_TYPE_( \ BOOST_PP_TUPLE_ELEM(4, 0, id_typename_offset_const), \ BOOST_PP_TUPLE_ELEM(4, 1, id_typename_offset_const), \ BOOST_PP_TUPLE_ELEM(4, 2, id_typename_offset_const), \ i, bind_var_without_type) \ BOOST_PP_EXPR_IIF(BOOST_PP_TUPLE_ELEM(4, 3, id_typename_offset_const), \ >::type \ ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_( \ r, id_typename_offset_const, i, bind_var_without_type) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_TYPE_( \ r, id_typename_offset_const, i, bind_var_without_type) \ BOOST_PP_IIF( \ BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_IS_THISUNDERSCORE_BACK( \ BOOST_LOCAL_FUNCTION_AUX_PP_BIND_TRAITS_VAR_WITHOUT_TYPE( \ bind_var_without_type)), \ this_ BOOST_PP_TUPLE_EAT(1) \ , \ BOOST_PP_TUPLE_REM(1) \ )(bind_var_without_type) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_BIND_TYPE_( \ r, id_typename_offset_const, i, bind_traits) \ , BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_TYPE_( \ r, id_typename_offset_const, i, \ BOOST_LOCAL_FUNCTION_AUX_PP_BIND_TRAITS_VAR_WITHOUT_TYPE( \ bind_traits)) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_PARAM_( \ offset, i) \ BOOST_PP_CAT(bind, BOOST_PP_ADD(offset, i)) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_PARAM_ENUM_( \ r, offset, i, bind_traits) \ BOOST_PP_COMMA_IF(i) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_PARAM_(offset, i) #define \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_BIND_PARAM_DECL_( \ r, id_typename_offset_const, i, bind_traits) \ , BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_TYPE_( \ r, id_typename_offset_const, i, \ BOOST_LOCAL_FUNCTION_AUX_PP_BIND_TRAITS_VAR_WITHOUT_TYPE( \ bind_traits)) & \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_PARAM_( \ BOOST_PP_TUPLE_ELEM(4, 2, id_typename_offset_const), i) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_BIND_THIS_TYPE_( \ id, typename01) \ , BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_TYPE(id, typename01) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_THIS_PARAM_ \ bind_this #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_BIND_THIS_PARAM_DECL_( \ id, typename01) \ , BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_TYPE(id, typename01) & \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_THIS_PARAM_ #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_NOBIND_(z, n, unused) \ , ::boost::local_function::aux::nobind #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_NOBIND_TYPE_(z, n, unused) \ , ::boost::local_function::aux::nobind_t #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_NOBIND_PARAM_DECL_( \ z, n, unused) \ , ::boost::local_function::aux::nobind_t & \ /* param name not needed here because no bind param not used */ #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_ENUM_( \ r, id_typename_offset_const, i, bind_traits) \ BOOST_PP_COMMA_IF(i) /* enumeration commas */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_( \ r, id_typename_offset_const, i, \ BOOST_LOCAL_FUNCTION_AUX_PP_BIND_TRAITS_VAR_WITHOUT_TYPE( \ bind_traits)) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_DECL_( \ r, id_typename_offset_const, i, bind_traits) \ BOOST_PP_EXPR_IIF(BOOST_PP_TUPLE_ELEM(4, 1, id_typename_offset_const), \ typename \ ) \ ::boost::local_function::aux::member_type< \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_TYPE_( \ r, id_typename_offset_const, i, bind_var_without_type) \ >::reference \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_VAR_( \ BOOST_PP_ADD(i, BOOST_PP_TUPLE_ELEM(4, 2, \ id_typename_offset_const))) \ ; /* end member variable declaration */ #define \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_STATIC_BIND_MEMBER_( \ r, id_typename_offset_const, i, bind_traits) \ , static_cast< BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CLASS_TYPE_( \ BOOST_PP_TUPLE_ELEM(4, 0, id_typename_offset_const))* >(object)-> \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_VAR_( \ BOOST_PP_ADD(i, BOOST_PP_TUPLE_ELEM(4, 2, \ id_typename_offset_const))) #define \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_INIT_ENUM_( \ r, id_offset, i, bind_traits) \ BOOST_PP_COMMA_IF(i) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_VAR_( \ BOOST_PP_ADD(i, BOOST_PP_TUPLE_ELEM(2, 1, id_offset))) \ ( /* member variable initialization */ \ static_cast< \ BOOST_SCOPE_EXIT_DETAIL_PARAMS_T( \ BOOST_PP_TUPLE_ELEM(2, 0, id_offset))* \ >(BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAMS_)-> \ BOOST_SCOPE_EXIT_DETAIL_PARAM( \ BOOST_PP_TUPLE_ELEM(2, 0, id_offset) \ , BOOST_PP_ADD(i, BOOST_PP_TUPLE_ELEM(2, 1, id_offset)) \ , BOOST_LOCAL_FUNCTION_AUX_PP_BIND_TRAITS_VAR_WITHOUT_TYPE( \ bind_traits) \ ).value \ ) // Typeof type-definitions. #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_TYPEDEF_( \ r, id_typename_offset_const, i, bind_traits) \ typedef /* the type with the special typeof name */ \ BOOST_LOCAL_FUNCTION_AUX_TYPEOF_TYPE( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_( \ r, id_typename_offset_const, i, \ BOOST_LOCAL_FUNCTION_AUX_PP_BIND_TRAITS_VAR_WITHOUT_TYPE( \ bind_traits)) \ ) \ ; /* end typedef */ // Expand to the function type `R (A1, ...)`. #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_F_( \ id, typename01, decl_traits, has_type, function_type) \ BOOST_LOCAL_FUNCTION_AUX_CODE_RESULT_TYPE(id, typename01) \ BOOST_PP_EXPR_IIF(has_type, (function_type) ) \ ( \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_DECL_ENUM_, \ 0, /* without defaults */ \ BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS(decl_traits)) \ ) // Functor call operations. #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_BODY_(id, typename01, \ const_bind_macro, bind_macro, const_bind_this_macro, bind_this_macro, \ param_macro, params, \ const_binds, has_const_bind_this, binds, has_bind_this) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BODY_FUNC_( \ BOOST_PP_LIST_FOR_EACH_I(const_bind_macro, \ 0 /* no offset */, const_binds) \ /* pass plain binds */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ ) \ BOOST_PP_LIST_FOR_EACH_I(bind_macro, \ /* offset index of # const-binds (could be 0) */ \ BOOST_PP_LIST_SIZE(const_binds), binds) \ /* pass bind `this` */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_BITOR( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ , BOOST_PP_BITOR(has_const_bind_this, has_bind_this) \ ) \ ) \ BOOST_PP_EXPR_IIF(has_const_bind_this, const_bind_this_macro) \ BOOST_PP_EXPR_IIF(has_bind_this, bind_this_macro) \ /* pass params */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_BITOR( \ BOOST_PP_BITOR( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ , BOOST_PP_BITOR(has_const_bind_this, has_bind_this) \ ) \ , BOOST_PP_LIST_IS_CONS(params) \ ) \ ) \ BOOST_PP_LIST_FOR_EACH_I(param_macro, ~, params) \ ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_(z, defaults_n, \ id, typename01, decl_traits, params, \ const_binds, has_const_bind_this, binds, has_bind_this) \ inline BOOST_LOCAL_FUNCTION_AUX_CODE_RESULT_TYPE(id, typename01) \ operator()( \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_DECL_ENUM_, \ typename01, params) \ ) /* cannot be const because of binds (same as for global fctor) */ { \ /* just forward call to member function with local func name */ \ return BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_BODY_(id, typename01,\ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_MEMBER_BIND_ENUM_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_MEMBER_BIND_ENUM_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_THIS_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_THIS_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_NAME_ENUM_, \ params, const_binds, has_const_bind_this, binds, \ has_bind_this); \ } #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_FUNC_( \ z, defaults_n, unused) \ BOOST_LOCAL_FUNCTION_AUX_SYMBOL( (call)(defaults_n) ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_COMMA_FUNC_ADDR_( \ z, defaults_n, unused) \ , &BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_FUNC_(z, defaults_n, ~) // Precondition: NO_LOCAL_TYPES_AS_TEMPLATE_PARAMS. #define \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_COMMA_BIND_PARAM_DECLS_( \ id, typename01, const_binds, has_const_bind_this, binds, has_bind_this)\ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_BIND_PARAM_DECL_, \ ( id, typename01, 0 /* no offset */, 1 /* const */ ), const_binds) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_BIND_PARAM_DECL_, \ /* offset of # of const-binds */ \ ( id, typename01, BOOST_PP_LIST_SIZE(const_binds), 0 /* const */ ),\ binds) \ BOOST_PP_IIF(BOOST_PP_BITOR(has_bind_this, \ has_const_bind_this), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_BIND_THIS_PARAM_DECL_ \ , \ BOOST_PP_TUPLE_EAT(2) \ )(id, typename01) \ /* fill with nobind_t (if no local-types as tparams) */ \ BOOST_PP_REPEAT(BOOST_PP_SUB(BOOST_LOCAL_FUNCTION_CONFIG_BIND_MAX, \ BOOST_PP_IIF(BOOST_PP_BITOR(has_bind_this, \ has_const_bind_this), \ BOOST_PP_INC \ , \ BOOST_PP_TUPLE_REM(1) \ )(BOOST_PP_LIST_SIZE(BOOST_PP_LIST_APPEND(const_binds, \ binds)))), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_NOBIND_PARAM_DECL_, ~) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_OPERATOR_( \ id, typename01, \ params, const_binds, has_const_bind_this, binds, has_bind_this) \ operator()( \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_NAME_ENUM_, ~, \ params) \ ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_BODY_( \ id, typename01, \ params, const_binds, has_const_bind_this, binds, has_bind_this) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_BODY_(id, typename01, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_PARAM_ENUM_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_PARAM_ENUM_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_THIS_PARAM_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_THIS_PARAM_, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_ARG_NAME_ENUM_, \ params, const_binds, has_const_bind_this, binds, has_bind_this) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_(z, defaults_n, \ id, typename01, decl_traits, params, \ const_binds, has_const_bind_this, binds, has_bind_this) \ inline static BOOST_LOCAL_FUNCTION_AUX_CODE_RESULT_TYPE(id, typename01) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_FUNC_(z, defaults_n, ~)( \ void* object \ BOOST_PP_IIF(BOOST_LOCAL_FUNCTION_CONFIG_LOCALS_AS_TPARAMS, \ BOOST_PP_TUPLE_EAT(6) \ , \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_COMMA_BIND_PARAM_DECLS_ \ )(id, typename01, \ const_binds, has_const_bind_this, binds, has_bind_this) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_PARAM_ARG_DECL_, \ typename01, params) \ ) { \ /* run-time: casting object to this class type and forward call to */ \ /* `operator()` (this performs better than doing multiple casting */ \ /* or using a casted object local variable here to call body */ \ /* directly from here without passing via `operator()`) */ \ /* compliance: passing local class type to `static_cast` is fully */ \ /* C++03 compliant because `static_cast` is not a template (even */ \ /* if its syntax resembles a function template call) in fact even */ \ /* in C is legal to cast to a local struct (using C-style casting) */ \ return \ static_cast< \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CLASS_TYPE_(id)* \ >(object)-> \ BOOST_PP_IIF(BOOST_LOCAL_FUNCTION_CONFIG_LOCALS_AS_TPARAMS,\ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_OPERATOR_ \ , \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_BODY_ \ )(id, typename01, params, \ const_binds, has_const_bind_this, binds, has_bind_this) \ ; \ } #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_FOR_DEFAULTS_(z, defaults_n, \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ BOOST_PP_EXPAND( \ BOOST_PP_TUPLE_ELEM(9, 0, \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ ( z, defaults_n \ , BOOST_PP_TUPLE_ELEM(9, 1, /* id */\ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ , BOOST_PP_TUPLE_ELEM(9, 2, /* typename01 */ \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ , BOOST_PP_TUPLE_ELEM(9, 3, /* decl_traits */ \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ , BOOST_PP_LIST_FIRST_N( /* remove last n default params */ \ BOOST_PP_SUB(BOOST_PP_LIST_SIZE(BOOST_PP_TUPLE_ELEM(9, 4, \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis)),\ defaults_n) \ , BOOST_PP_TUPLE_ELEM(9, 4, \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ ) \ , BOOST_PP_TUPLE_ELEM(9, 5, /* const_binds */ \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ , BOOST_PP_TUPLE_ELEM(9, 6, /* has_const_bind_this */ \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ , BOOST_PP_TUPLE_ELEM(9, 7, /* binds */ \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ , BOOST_PP_TUPLE_ELEM(9, 8, /* has_bind_this */ \ op_id_typename_decl_params_constbinds_hasconstthis_binds_hasthis) \ ) /* end `op_macro(...)` */ \ ) /* end expand */ // Functor binds. // Precondition: NO_LOCAL_TYPES_AS_TEMPLATE_PARAMS. #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_BIND_TYPES_( \ id, typename01, const_binds, has_const_bind_this, binds, has_bind_this)\ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_BIND_TYPE_, \ ( id, typename01, 0 /* no offset */, 1 /* const */ ), \ const_binds) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_BIND_TYPE_, \ /* offset of # of const-binds */ \ ( id, typename01, BOOST_PP_LIST_SIZE(const_binds), 0 /* const */ ),\ binds) \ BOOST_PP_IIF(BOOST_PP_BITOR(has_bind_this, \ has_const_bind_this), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_BIND_THIS_TYPE_ \ , \ BOOST_PP_TUPLE_EAT(2) \ )(id, typename01) \ /* fill with nobind_t (if no local-types as tparams) */ \ BOOST_PP_REPEAT(BOOST_PP_SUB(BOOST_LOCAL_FUNCTION_CONFIG_BIND_MAX, \ BOOST_PP_IIF(BOOST_PP_BITOR(has_bind_this, has_const_bind_this), \ BOOST_PP_INC \ , \ BOOST_PP_TUPLE_REM(1) \ )(BOOST_PP_LIST_SIZE(BOOST_PP_LIST_APPEND(const_binds, binds)))), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_NOBIND_TYPE_, ~) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_TYPEOF_TYPEDEFS_( \ id, typename01, const_binds, has_const_bind_this, binds, has_bind_this)\ /* typeof types -- these types are qualified with extra eventual */ \ /* const and/or & if their variables are bound by const and/or & */ \ /* (this is because it is not possible to strip the eventual & */ \ /* given that the var name is always attached to the & symbol plus */ \ /* programmers can always remove const& using type traits) */ \ /* const bind typeof types */ \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_TYPEDEF_,\ (id, typename01, 0 /* no offset */, 1 /* const-bind */ ), \ const_binds) \ /* bind typeof types */ \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_TYPEDEF_, \ /* offset index with # of preceding const-binds (if any) */ \ ( id, typename01, BOOST_PP_LIST_SIZE(const_binds), \ 0 /* not const-bind */ ), binds) \ /* const this... */ \ BOOST_PP_EXPR_IIF(has_const_bind_this, \ typedef BOOST_LOCAL_FUNCTION_AUX_TYPEOF_TYPE( \ BOOST_PP_EXPR_IIF(typename01, typename) \ ::boost::local_function::aux::add_pointed_const< \ BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_TYPE(id, typename01) \ >::type \ this_ \ ) ; /* close typedef */ \ ) \ /* ... or, non-const this */ \ BOOST_PP_EXPR_IIF(has_bind_this, \ typedef BOOST_LOCAL_FUNCTION_AUX_TYPEOF_TYPE( \ BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_TYPE(id, typename01) \ this_ \ ) ; /* close typedef */ \ ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_DECLS_( \ id, typename01, const_binds, has_const_bind_this, binds, has_bind_this)\ /* run-time: it is faster if call `operator()` just accesses member */ \ /* references to the ScopeExit struct instead of accessing the bind */ \ /* struct at each call (these mem refs are init by the constructor) */ \ BOOST_PP_LIST_FOR_EACH_I( /* const bind member references */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_DECL_,\ ( id, typename01, 0 /* no offset */, 1 /* const */ ), \ const_binds) \ BOOST_PP_LIST_FOR_EACH_I( /* bind member references */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_DECL_,\ /* offset index of # of const-binds (could be 0) */ \ ( id, typename01, BOOST_PP_LIST_SIZE(const_binds), \ 0 /* no const */ ), binds) \ /* bind this const or not (pointed-const is not added here because */ \ /* this is a reference, it is added to the this_ body param instead */ \ BOOST_PP_EXPR_IIF(BOOST_PP_BITOR(has_bind_this, has_const_bind_this), \ /* this is * so no & */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_TYPE(id, typename01) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_THIS_ \ ; /* end member variable declaration */ \ ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_STATIC_BINDS_( \ id, typename01, \ const_binds, has_const_bind_this, binds, has_bind_this) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_STATIC_BIND_MEMBER_, \ ( id, typename01, 0 /* no offset */, 1 /* const */ ), const_binds) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_MAYBECONST_STATIC_BIND_MEMBER_, \ /* offset of # of const-binds */ \ ( id, typename01, BOOST_PP_LIST_SIZE(const_binds), 0 /* const */ ), \ binds) \ BOOST_PP_IIF(BOOST_PP_BITOR(has_bind_this, \ has_const_bind_this), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_STATIC_BIND_MEMBER_THIS_ \ , \ BOOST_PP_TUPLE_EAT(1) \ )(id) \ /* fill with nobind_t (if no local-types as tparams) */ \ BOOST_PP_REPEAT(BOOST_PP_SUB(BOOST_LOCAL_FUNCTION_CONFIG_BIND_MAX, \ BOOST_PP_IIF(BOOST_PP_BITOR(has_bind_this, has_const_bind_this), \ BOOST_PP_INC \ , \ BOOST_PP_TUPLE_REM(1) \ )(BOOST_PP_LIST_SIZE(BOOST_PP_LIST_APPEND(const_binds, binds)))), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_NOBIND_, ~) // Functor inits. #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MEMBER_INITS_(id, typename01, \ const_binds, has_const_bind_this, binds, has_bind_this) \ BOOST_PP_EXPR_IIF(BOOST_PP_BITOR(BOOST_PP_BITOR(BOOST_PP_BITOR( \ BOOST_PP_LIST_IS_CONS(const_binds), BOOST_PP_LIST_IS_CONS(binds)), \ has_bind_this), has_const_bind_this), \ : \ ) \ /* init const binds */ \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_INIT_ENUM_, \ ( id, 0 /* no offset */ ), const_binds) \ /* init plain binds */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ ) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_MEMBER_INIT_ENUM_, \ /* offset index of # of const-binds (could be 0) */ \ ( id, BOOST_PP_LIST_SIZE(const_binds) ), binds) \ /* init `this` bind (const or not) */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_BITOR( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ , BOOST_PP_BITOR(has_const_bind_this, has_bind_this) \ ) \ ) \ BOOST_PP_EXPR_IIF(BOOST_PP_BITOR(has_const_bind_this, has_bind_this), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_THIS_( \ static_cast< BOOST_SCOPE_EXIT_DETAIL_PARAMS_T(id)* >( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAMS_)-> \ BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_VAR \ ) \ ) // Functor class. #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_( \ id, typename01, decl_traits, params, \ default_count, const_binds, has_const_bind_this, binds, has_bind_this) \ typedef class BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CLASS_TYPE_(id) \ /* run-time: do not use base class to allow for compiler optimizations */ \ { \ /* function type */ \ private: \ typedef \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_F_(id, typename01, \ decl_traits, 1 /* has type */, \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_F_TYPE_) \ ; \ /* functor type -- this type cannot have ID postfix because it is */ \ /* used the `NAME` macro (this symbol is within functor class so */ \ /* it does not have to have ID postfix), must be public so it */ \ /* can be accessed by `NAME` macro from outside this class */ \ public: \ typedef BOOST_PP_EXPR_IIF(typename01, typename) \ BOOST_IDENTITY_TYPE(( /* IDENTITY for template param comma */ \ ::boost::local_function::aux::function< \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_F_TYPE_ \ , default_count \ BOOST_PP_IIF(BOOST_LOCAL_FUNCTION_CONFIG_LOCALS_AS_TPARAMS,\ BOOST_PP_TUPLE_EAT(6) \ , \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_BIND_TYPES_\ )(id, typename01, const_binds, has_const_bind_this, \ binds, has_bind_this) \ > \ )) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_TYPE \ ; \ private: \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_TYPEOF_TYPEDEFS_( \ id, typename01, \ const_binds, has_const_bind_this, binds, has_bind_this) \ public: \ /* public trait interface following Boost.FunctionTraits names */ \ /* (traits must be defined in both this and the global functor) */ \ enum { arity = ::boost::function_traits< /* can't use static data */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_F_TYPE_ >::arity }; \ typedef BOOST_LOCAL_FUNCTION_AUX_CODE_RESULT_TYPE(id, typename01) \ result_type; \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_ARG_TYPEDEF_, \ typename01, params) \ /* constructor */ \ inline explicit BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CLASS_TYPE_(id)( \ void* BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAMS_) \ /* NOTE: there is no way to wrap member initializer commas */ \ /* within paren so you must handle these commas manually if */ \ /* expanding this macro within another macro */ \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MEMBER_INITS_(id, typename01,\ const_binds, has_const_bind_this, binds, has_bind_this) \ { /* do nothing */ } \ /* run-time: implement `operator()` (and for all default params) so */ \ /* this obj can be used directly as a functor for C++03 extensions */ \ /* and optimized macros */ \ BOOST_PP_REPEAT( \ /* PP_INC to handle no dflt (EXPAND for MVSC) */ \ BOOST_PP_EXPAND(BOOST_PP_INC(default_count)), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_FOR_DEFAULTS_,\ ( BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_, id, typename01 \ , decl_traits, params, const_binds, has_const_bind_this, binds \ , has_bind_this ) ) \ /* compliance: trick to pass this local class as a template param */ \ /* on pure C++03 without non C++03 extension */ \ /* performance: this trick introduced _one_ indirect function call */ \ /* via a function pointer that is usually not inlined by compliers */ \ /* thus increasing run-time (also another trick using a base */ \ /* interface class was investigated but virtual calls also cannot */ \ /* inlined plus they require virtual table lookups to the "virtual */ \ /* call trick" measured longer run-times than this "static call */ \ /* trick") */ \ BOOST_PP_REPEAT( \ /* PP_INC to handle no dflt (EXPAND for MVSC) */ \ BOOST_PP_EXPAND(BOOST_PP_INC(default_count)), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_CALL_FOR_DEFAULTS_,\ ( BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_, id \ , typename01, decl_traits, params, const_binds \ , has_const_bind_this, binds, has_bind_this ) ) \ inline static void BOOST_LOCAL_FUNCTION_AUX_FUNCTION_INIT_CALL_FUNC( \ void* object \ , BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_TYPE& functor \ ) { \ functor.BOOST_LOCAL_FUNCTION_AUX_FUNCTION_INIT_CALL_FUNC( \ object \ BOOST_PP_IIF(BOOST_LOCAL_FUNCTION_CONFIG_LOCALS_AS_TPARAMS,\ BOOST_PP_TUPLE_EAT(6) \ , \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_COMMA_STATIC_BINDS_ \ )(id, typename01, const_binds, has_const_bind_this, \ binds, has_bind_this) \ BOOST_PP_REPEAT( /* INC to handle no dflt (EXPAND for MVSC) */ \ BOOST_PP_EXPAND(BOOST_PP_INC(default_count)), \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_STATIC_CALL_COMMA_FUNC_ADDR_, \ ~) \ ); \ } \ private: \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BIND_MEMBER_DECLS_(id, \ typename01, const_binds, has_const_bind_this, binds, \ has_bind_this) \ /* this decl allows for nesting (local functions, etc) as */ \ /* it makes the args variable visible within the body code (which */ \ /* cannot be static); this is for compilation only as the args */ \ /* variable is actually declared by the 1st enclosing local func */ \ boost::scope_exit::detail::undeclared \ BOOST_LOCAL_FUNCTION_AUX_DECL_ARGS_VAR; \ /* body function (unfortunately, cannot be static to allow access */ \ /* to member var with local function name for recursion but doing */ \ /* so also allows the body to misuse `this` instead of `this_`) */ \ inline BOOST_LOCAL_FUNCTION_AUX_CODE_RESULT_TYPE(id, typename01) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_BODY_FUNC_( \ /* const binds */ \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_ENUM_, \ ( id, typename01, 0 /* no offset */, 1 /* const */ ), \ const_binds) \ /* plain binds */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ ) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_MAYBECONST_BIND_DECL_ENUM_, \ /* offset index of # of const-binds (could be 0) */ \ ( id, typename01, BOOST_PP_LIST_SIZE(const_binds), \ 0 /* not const-bind */ ), binds) \ /* `this` bind */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_BITOR( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ , BOOST_PP_BITOR(has_const_bind_this, has_bind_this) \ ) \ ) \ /* const pointer to const object */ \ BOOST_PP_EXPR_IIF(has_const_bind_this, \ BOOST_PP_EXPR_IIF(typename01, typename) \ ::boost::local_function::aux::add_pointed_const< \ BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_TYPE(id, \ typename01) \ >::type \ const this_ /* special name to access object this */ \ ) \ /* const pointer to non-const object */ \ BOOST_PP_EXPR_IIF(has_bind_this, \ BOOST_LOCAL_FUNCTION_AUX_CODE_BIND_THIS_TYPE(id, \ typename01) \ const this_ /* special name to access object this */ \ ) \ /* params (last because they can have defaults) */ \ BOOST_PP_COMMA_IF( \ BOOST_PP_BITAND( \ BOOST_PP_BITOR( \ BOOST_PP_BITOR( \ BOOST_PP_LIST_IS_CONS(const_binds) \ , BOOST_PP_LIST_IS_CONS(binds) \ ) \ , BOOST_PP_BITOR(has_const_bind_this, \ has_bind_this) \ ) \ , BOOST_PP_LIST_IS_CONS(params) \ ) \ ) \ BOOST_PP_LIST_FOR_EACH_I( \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_PARAM_DECL_ENUM_, \ 1 /* with defaults */, params) \ ) /* end body function params */ \ /* cannot be const because recursive functor is non const member */\ /* user local function definition `{ ... }` will follow here */ \ /* `END` macro will close function class decl `};` here */ // PUBLIC // #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_TYPE \ BOOST_LOCAL_FUNCTION_AUX_SYMBOL( (functor_type) ) #define BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR(id, typename01, decl_traits) \ BOOST_LOCAL_FUNCTION_AUX_CODE_FUNCTOR_(id, typename01, decl_traits \ /* params (might have defaults) */ \ , BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS(decl_traits) \ , BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_PARAMS_DEFAULT_COUNT( \ decl_traits) \ /* const bind vars (`this` excluded) */ \ , BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_CONST_BINDS(decl_traits) \ /* if const bind `this` is present */ \ , BOOST_PP_LIST_IS_CONS( \ BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_CONST_BIND_THIS_TYPES( \ decl_traits)) \ /* bind (non-const) vars (`this` excluded) */ \ , BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_BINDS(decl_traits) \ /* if (non-const) bind `this` is present */ \ , BOOST_PP_LIST_IS_CONS( \ BOOST_LOCAL_FUNCTION_AUX_PP_DECL_TRAITS_BIND_THIS_TYPES( \ decl_traits)) \ ) #endif // #include guard