106 lines
2.8 KiB
C++
106 lines
2.8 KiB
C++
/*
|
|
* Copyright 2019 by its authors. See AUTHORS.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#ifndef EOLIAN_CXX_CASE_HH
|
|
#define EOLIAN_CXX_CASE_HH
|
|
|
|
#include "grammar/context.hpp"
|
|
#include "grammar/generator.hpp"
|
|
|
|
namespace efl { namespace eolian { namespace grammar {
|
|
|
|
struct upper_case_tag {};
|
|
struct lower_case_tag {};
|
|
|
|
template <typename Context>
|
|
context_cons<upper_case_tag, Context>
|
|
add_upper_case_context(Context const& context)
|
|
{
|
|
return context_add_tag(upper_case_tag{}, context);
|
|
}
|
|
|
|
template <typename Context>
|
|
context_cons<lower_case_tag, Context>
|
|
add_lower_case_context(Context const& context)
|
|
{
|
|
return context_add_tag(lower_case_tag{}, context);
|
|
}
|
|
|
|
template <typename G>
|
|
struct lower_case_generator
|
|
{
|
|
lower_case_generator(G g) : g(g) {}
|
|
|
|
template <typename OutputIterator, typename Attribute, typename Context>
|
|
bool generate(OutputIterator sink, Attribute const& attribute, Context const& context) const
|
|
{
|
|
return as_generator(g).generate(sink, attribute, add_lower_case_context(context));
|
|
}
|
|
|
|
G g;
|
|
};
|
|
|
|
template <typename G>
|
|
struct upper_case_generator
|
|
{
|
|
upper_case_generator(G g) : g(g) {}
|
|
|
|
template <typename OutputIterator, typename Attribute, typename Context>
|
|
bool generate(OutputIterator sink, Attribute const& attribute, Context const& context) const
|
|
{
|
|
return as_generator(g).generate(sink, attribute, add_upper_case_context(context));
|
|
}
|
|
|
|
G g;
|
|
};
|
|
|
|
template <typename G>
|
|
struct is_eager_generator<lower_case_generator<G>> : std::true_type {};
|
|
template <typename G>
|
|
struct is_eager_generator<upper_case_generator<G>> : std::true_type {};
|
|
template <typename G>
|
|
struct is_generator<lower_case_generator<G>> : std::true_type {};
|
|
template <typename G>
|
|
struct is_generator<upper_case_generator<G>> : std::true_type {};
|
|
|
|
namespace type_traits {
|
|
template <typename G>
|
|
struct attributes_needed<lower_case_generator<G>> : attributes_needed<G> {};
|
|
template <typename G>
|
|
struct attributes_needed<upper_case_generator<G>> : attributes_needed<G> {};
|
|
}
|
|
|
|
struct lower_case_directive
|
|
{
|
|
template <typename G>
|
|
lower_case_generator<G> operator[](G&& g) const
|
|
{
|
|
return lower_case_generator<G>{g};
|
|
}
|
|
} const lower_case = {};
|
|
|
|
struct upper_case_directive
|
|
{
|
|
template <typename G>
|
|
upper_case_generator<G> operator[](G&& g) const
|
|
{
|
|
return upper_case_generator<G>{g};
|
|
}
|
|
} const upper_case = {};
|
|
|
|
} } }
|
|
|
|
#endif
|