91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
#ifndef EOLIAN_CXX_CASE_HH
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#define EOLIAN_CXX_CASE_HH
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#include "grammar/context.hpp"
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#include "grammar/generator.hpp"
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namespace efl { namespace eolian { namespace grammar {
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struct upper_case_tag {};
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struct lower_case_tag {};
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template <typename Context>
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context_cons<upper_case_tag, Context>
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add_upper_case_context(Context const& context)
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{
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return context_add_tag(upper_case_tag{}, context);
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}
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template <typename Context>
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context_cons<lower_case_tag, Context>
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add_lower_case_context(Context const& context)
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{
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return context_add_tag(lower_case_tag{}, context);
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}
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template <typename G>
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struct lower_case_generator
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{
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lower_case_generator(G g) : g(g) {}
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template <typename OutputIterator, typename Attribute, typename Context>
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bool generate(OutputIterator sink, Attribute const& attribute, Context const& context) const
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{
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return as_generator(g).generate(sink, attribute, add_lower_case_context(context));
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}
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G g;
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};
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template <typename G>
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struct upper_case_generator
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{
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upper_case_generator(G g) : g(g) {}
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template <typename OutputIterator, typename Attribute, typename Context>
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bool generate(OutputIterator sink, Attribute const& attribute, Context const& context) const
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{
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return as_generator(g).generate(sink, attribute, add_upper_case_context(context));
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}
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G g;
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};
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template <typename G>
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struct is_eager_generator<lower_case_generator<G>> : std::true_type {};
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template <typename G>
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struct is_eager_generator<upper_case_generator<G>> : std::true_type {};
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template <typename G>
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struct is_generator<lower_case_generator<G>> : std::true_type {};
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template <typename G>
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struct is_generator<upper_case_generator<G>> : std::true_type {};
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namespace type_traits {
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template <typename G>
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struct attributes_needed<lower_case_generator<G>> : attributes_needed<G> {};
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template <typename G>
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struct attributes_needed<upper_case_generator<G>> : attributes_needed<G> {};
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}
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struct lower_case_directive
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{
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template <typename G>
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lower_case_generator<G> operator[](G&& g) const
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{
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return lower_case_generator<G>{g};
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}
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} const lower_case = {};
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struct upper_case_directive
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{
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template <typename G>
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upper_case_generator<G> operator[](G&& g) const
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{
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return upper_case_generator<G>{g};
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}
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} const upper_case = {};
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} } }
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#endif
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