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Diffstat (limited to 'boost/spirit/home/x3/support/traits/handles_container.hpp')
| -rw-r--r-- | boost/spirit/home/x3/support/traits/handles_container.hpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/boost/spirit/home/x3/support/traits/handles_container.hpp b/boost/spirit/home/x3/support/traits/handles_container.hpp new file mode 100644 index 0000000000..3fe05aef87 --- /dev/null +++ b/boost/spirit/home/x3/support/traits/handles_container.hpp @@ -0,0 +1,31 @@ +/*============================================================================= + Copyright (c) 2001-2011 Hartmut Kaiser + Copyright (c) 2013 Agustin Berge + + 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) +==============================================================================*/ +#if !defined(BOOST_SPIRIT_X3_HANDLES_CONTAINER_DEC_18_2010_0920AM) +#define BOOST_SPIRIT_X3_HANDLES_CONTAINER_DEC_18_2010_0920AM + +#if defined(_MSC_VER) +#pragma once +#endif + +#include <boost/mpl/bool.hpp> + +namespace boost { namespace spirit { namespace x3 { namespace traits +{ + /////////////////////////////////////////////////////////////////////////// + // Whether a component handles container attributes intrinsically + // (or whether container attributes need to be split up separately). + // By default, this gets the Component's handles_container nested value. + // Components may specialize this if such a handles_container is not + // readily available (e.g. expensive to compute at compile time). + /////////////////////////////////////////////////////////////////////////// + template <typename Component, typename Context, typename Enable = void> + struct handles_container : mpl::bool_<Component::handles_container> {}; + +}}}} + +#endif |