forked from enlightenment/efl
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
/*
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* Copyright 2019 by its authors. See AUTHORS.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef EOLIAN_CXX_C_TYPE_HH
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#define EOLIAN_CXX_C_TYPE_HH
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#include "grammar/generator.hpp"
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#include "grammar/klass_def.hpp"
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#include "grammar/string.hpp"
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namespace efl { namespace eolian { namespace grammar { namespace attributes {
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struct c_type_visitor
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{
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std::string const* c_type;
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typedef std::string result_type;
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std::string operator()(attributes::klass_name const& name) const
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{
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std::string n;
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as_generator(" ::" << *(string << "_") << string << string << "*")
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.generate(std::back_insert_iterator<std::string>(n)
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, std::make_tuple(name.namespaces, name.eolian_name
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, std::string{name.base_qualifier & qualifier_info::is_const ? " const" : ""})
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, context_null {});
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if(name.base_qualifier & qualifier_info::is_ref)
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n += '*';
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return n;
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}
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template <typename T>
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std::string operator()(T const&) const
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{
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return *c_type;
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}
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};
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inline std::string c_type(parameter_def const& param)
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{
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switch(param.direction)
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{
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case parameter_direction::in:
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return param.type.original_type.visit(c_type_visitor{¶m.type.c_type});
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case parameter_direction::out:
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case parameter_direction::inout:
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return param.type.original_type.visit(c_type_visitor{¶m.type.c_type}) + "*";
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default:
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throw std::runtime_error("Unknown parameter direction");
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};
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}
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}
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struct c_type_generator
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{
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template <typename OutputIterator, typename Context>
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bool generate(OutputIterator sink, attributes::parameter_def const& attribute, Context const& context) const
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{
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return as_generator(attributes::c_type(attribute)).generate(sink, attributes::unused, context);
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}
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template <typename OutputIterator, typename Context>
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bool generate(OutputIterator sink, attributes::type_def const& attribute, Context const& context) const
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{
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return as_generator(attribute.original_type.visit(attributes::c_type_visitor{&attribute.c_type}))
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.generate(sink, attributes::unused, context);
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}
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};
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template <>
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struct is_eager_generator<c_type_generator> : std::true_type {};
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template <>
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struct is_generator<c_type_generator> : std::true_type {};
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namespace type_traits {
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template <>
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struct attributes_needed<c_type_generator> : std::integral_constant<int, 1> {};
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}
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c_type_generator const c_type = {};
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} } }
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#endif
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