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cxx: Add event_cb_add functions to events 

This enables a syntax like:

  button.clicked_event_cb_add([]() { std::cout << "Hello" << std::endl; });

I could not manage to pass the std::placeholders inside the template,
depending on whether the lambda has arguments or not. Not sure if
that's even possible.
This commit is contained in:
Jean-Philippe Andre 2017-11-10 19:04:23 +09:00
parent db8227a34a
commit 258a214e0f
1 changed files with 18 additions and 0 deletions
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18
src/lib/eolian_cxx/grammar/class_definition.hpp
View File

@ -156,6 +156,24 @@ struct class_definition_generator
<< scope_tab << "} const " << string_replace(',', '_') << "_event;\n"
))).generate(sink, std::vector<attributes::event_def>{e}, context))
return false;
if (!as_generator(
scope_tab << "template <typename F>\n"
<< scope_tab << "typename std::enable_if<std::is_bind_expression<F>::value, ::efl::eolian::signal_connection>::type\n"
<< scope_tab << string_replace(',', '_') << "_event_cb_add(F function)\n"
<< scope_tab << "{\n"
<< scope_tab << scope_tab << "return ::efl::eolian::event_add(" << string_replace(',', '_') << "_event, *this, function);\n"
<< scope_tab << "}\n")
.generate(sink, std::make_tuple(e.name, e.name), context))
return false;
if (!as_generator(
scope_tab << "template <typename F>\n"
<< scope_tab << "typename std::enable_if<!std::is_bind_expression<F>::value, ::efl::eolian::signal_connection>::type\n"
<< scope_tab << string_replace(',', '_') << "_event_cb_add(F function)\n"
<< scope_tab << "{\n"
<< scope_tab << scope_tab << "return ::efl::eolian::event_add(" << string_replace(',', '_') << "_event, *this, std::bind(function));\n"
<< scope_tab << "}\n")
.generate(sink, std::make_tuple(e.name, e.name), context))
return false;
if (e.beta && !as_generator("#endif\n").generate(sink, attributes::unused, context))
return false;
if (e.protect && !as_generator("#endif\n").generate(sink, attributes::unused, context))