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/*
* 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_MONO_ASYNC_FUNCTION_DEFINITION_HH
#define EOLIAN_MONO_ASYNC_FUNCTION_DEFINITION_HH
#include <Eina.hh>
#include "grammar/generator.hpp"
#include "grammar/klass_def.hpp"
#include "grammar/indentation.hpp"
#include "grammar/list.hpp"
#include "grammar/alternative.hpp"
#include "grammar/attribute_reorder.hpp"
#include "logging.hh"
#include "type.hh"
#include "name_helpers.hh"
#include "helpers.hh"
#include "function_helpers.hh"
#include "marshall_type.hh"
#include "parameter.hh"
#include "documentation.hh"
#include "using_decl.hh"
#include "generation_contexts.hh"
#include "blacklist.hh"
namespace eolian_mono {
struct is_future
{
typedef is_future visitor_type;
typedef bool result_type;
bool operator()(grammar::attributes::complex_type_def const& c) const
{
return c.outer.base_type == "future";
}
template<typename T>
bool operator()(T const&) const
{
return false;
}
};
struct async_function_declaration_generator
{
template<typename OutputIterator, typename Context>
bool generate(OutputIterator sink, attributes::function_def const& f, Context const& context) const
{
if (f.is_static)
return true;
if (blacklist::is_function_blacklisted(f, context))
return true;
if (!f.return_type.original_type.visit(is_future{}))
return true;
// C# interfaces can't have non-public members
if(f.scope != attributes::member_scope::scope_public)
return true;
if (!as_generator(
scope_tab << "/// <summary>Async wrapper for <see cref=\"" << name_helpers::managed_method_name(f) << "\" />.\n"
).generate(sink, attributes::unused, context))
return false;
if (!f.documentation.since.empty())
if (!as_generator
(scope_tab << "/// <para>Since EFL " + f.documentation.since + ".</para>\n")
.generate (sink, attributes::unused, context))
return false;
if (!as_generator(
scope_tab << "/// </summary>\n"
).generate(sink, attributes::unused, context))
return false;
// generate_parameter is not a proper as_generator-compatible generator, so we had to do an old fashioned loop
for (auto&& param : f.parameters)
if (!documentation(1).generate_parameter(sink, param, context))
return false;
if (!as_generator(
scope_tab << "/// <param name=\"token\">Token to notify the async operation of external request to cancel.</param>\n"
<< scope_tab << "/// <returns>An async task wrapping the result of the operation.</returns>\n"
<< scope_tab << "System.Threading.Tasks.Task<Eina.Value> " << name_helpers::managed_async_method_name(f) << "(" << *(parameter << ",") <<
" System.Threading.CancellationToken token = default(System.Threading.CancellationToken));\n\n"
).generate(sink, f.parameters, context))
return false;
return true;
}
} const async_function_declaration {};
struct async_function_definition_generator
{
async_function_definition_generator(bool do_super = false)
: do_super(do_super)
{}
template <typename OutputIterator, typename Context>
bool generate(OutputIterator sink, attributes::function_def const& f, Context const& context) const
{
EINA_CXX_DOM_LOG_DBG(eolian_mono::domain) << "async_function_definition_generator: " << f.c_name;
if(do_super && f.is_static) // Static methods goes only on Concrete classes.
return true;
if(blacklist::is_function_blacklisted(f, context))
return true;
if(!f.return_type.original_type.visit(is_future{}))
return true;
auto parameter_forwarding = [](attributes::parameter_def const& param) {
return direction_modifier(param) + " " + name_helpers::escape_keyword(param.param_name);
};
std::vector<std::string> param_forwarding;
std::transform(f.parameters.begin(), f.parameters.end(), std::back_inserter(param_forwarding), parameter_forwarding);
if (!as_generator(
scope_tab << "/// <summary>Async wrapper for <see cref=\"" << name_helpers::managed_method_name(f) << "\" />.\n"
).generate(sink, attributes::unused, context))
return false;
if (!f.documentation.since.empty())
if (!as_generator
(scope_tab << "/// <para>Since EFL " + f.documentation.since + ".</para>\n")
.generate (sink, attributes::unused, context))
return false;
if (!as_generator(
scope_tab << "/// </summary>\n"
).generate(sink, attributes::unused, context))
return false;
// generate_parameter is not a proper as_generator-compatible generator, so we had to do an old fashioned loop
for (auto&& param : f.parameters)
if (!documentation(1).generate_parameter(sink, param, context))
return false;
if(!as_generator(
scope_tab << "/// <param name=\"token\">Token to notify the async operation of external request to cancel.</param>\n"
<< scope_tab << "/// <returns>An async task wrapping the result of the operation.</returns>\n"
<< scope_tab << "public System.Threading.Tasks.Task<Eina.Value> " << name_helpers::managed_async_method_name(f) << "(" << *(parameter << ",") << " System.Threading.CancellationToken token = default(System.Threading.CancellationToken))\n"
<< scope_tab << "{\n"
<< scope_tab << scope_tab << "Eina.Future future = " << name_helpers::managed_method_name(f) << "(" << (string % ",") << ");\n"
<< scope_tab << scope_tab << "return Efl.Eo.Globals.WrapAsync(future, token);\n"
<< scope_tab << "}\n\n"
).generate(sink, std::make_tuple(f.parameters, param_forwarding), context))
return false;
return true;
}
bool do_super;
};
struct async_function_definition_parameterized
{
async_function_definition_generator operator()(bool do_super=false) const
{
return {do_super};
}
} const async_function_definition;
async_function_definition_generator as_generator(async_function_definition_parameterized)
{
return {};
}
}
namespace efl { namespace eolian { namespace grammar {
template <>
struct is_eager_generator< ::eolian_mono::async_function_declaration_generator> : std::true_type {};
template <>
struct is_generator< ::eolian_mono::async_function_declaration_generator> : std::true_type {};
template <>
struct is_eager_generator< ::eolian_mono::async_function_definition_generator> : std::true_type {};
template <>
struct is_generator< ::eolian_mono::async_function_definition_generator> : std::true_type {};
template <>
struct is_generator< ::eolian_mono::async_function_definition_parameterized> : std::true_type {};
namespace type_traits {
template <>
struct attributes_needed< ::eolian_mono::async_function_declaration_generator> : std::integral_constant<int, 1> {};
template <>
struct attributes_needed< ::eolian_mono::async_function_definition_generator> : std::integral_constant<int, 1> {};
template <>
struct attributes_needed< ::eolian_mono::async_function_definition_parameterized> : std::integral_constant<int, 1> {};
}
} } }
#endif
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