Function main

examples/source/dynamic_object.cpp:37–88

int main() {
	std::cout << "=== dynamic_object ===" << std::endl;

	sol::state lua;
	lua.open_libraries(sol::lib::base);

	lua.new_usertype<dynamic_object>("dynamic_object",
	     sol::meta_function::index,
	     &dynamic_object::dynamic_get,
	     sol::meta_function::new_index,
	     &dynamic_object::dynamic_set,
	     sol::meta_function::length,
	     [](dynamic_object& d) { return d.entries.size(); });

	lua.safe_script(R"(
d1 = dynamic_object.new()
d2 = dynamic_object.new()

print(#d1) -- length operator
print(#d2)

function d2:run(lim)
	local r = 0
	for i=0,lim do
		r = r + i
	end
	if (r % 2) == 1 then
		print("odd")
	end
	return r
end

-- only added an entry to d2
print(#d1) 
print(#d2)

-- only works on d2
local value = d2:run(5)
assert(value == 15)
)");

	// does not work on d1: 'run' wasn't added to d1, only d2
	auto script_result = lua.safe_script(
	     "local value = d1:run(5)", sol::script_pass_on_error);
	SOL_ASSERT(!script_result.valid());
	sol::error err = script_result;
	std::cout << "received expected error: " << err.what()
	          << std::endl;
	std::cout << std::endl;

	return 0;
}