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Diffstat (limited to 'boost/local_function/aux_/macro/code_/functor.hpp')
| -rw-r--r-- | boost/local_function/aux_/macro/code_/functor.hpp | 892 |
1 files changed, 892 insertions, 0 deletions
diff --git a/boost/local_function/aux_/macro/code_/functor.hpp b/boost/local_function/aux_/macro/code_/functor.hpp new file mode 100644 index 0000000000..cc34946260 --- /dev/null +++ b/boost/local_function/aux_/macro/code_/functor.hpp @@ -0,0 +1,892 @@ + +// 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 + |