msgpack::object const& operator()(msgpack::object const& o, my_class& v) const {
if (o.type != msgpack::type::ARRAY) throw msgpack::type_error();
if (o.via.array.size != 2) throw msgpack::type_error();
v = my_class(
o.via.array.ptr[0].as<std::string>(),
o.via.array.ptr[1].as<int>());
return o;
}
// The test checks that default formatting work
BOOST_AUTO_TEST_CASE_TEMPLATE(default_formatting, CharT, char_types)
{
typedef logging::record_view record_view;
typedef logging::attribute_set attr_set;
typedef std::basic_string< CharT > string;
typedef logging::basic_formatting_ostream< CharT > osstream;
typedef logging::basic_formatter< CharT > formatter;
typedef test_data< CharT > data;
attrs::constant< int > attr1(10);
attrs::constant< double > attr2(5.5);
attrs::constant< my_class > attr3(my_class(77));
attr_set set1;
set1[data::attr1()] = attr1;
set1[data::attr2()] = attr2;
set1[data::attr3()] = attr3;
record_view rec = make_record_view(set1);
// Check for various modes of attribute value type specification
{
string str1, str2;
osstream strm1(str1), strm2(str2);
formatter f = expr::stream << expr::attr< int >(data::attr1()) << expr::attr< double >(data::attr2());
f(rec, strm1);
strm2 << 10 << 5.5;
BOOST_CHECK(equal_strings(strm1.str(), strm2.str()));
}
{
string str1, str2;
osstream strm1(str1), strm2(str2);
formatter f = expr::stream << expr::attr< logging::numeric_types >(data::attr1()) << expr::attr< logging::numeric_types >(data::attr2());
f(rec, strm1);
strm2 << 10 << 5.5;
BOOST_CHECK(equal_strings(strm1.str(), strm2.str()));
}
// Check that custom types as attribute values are also supported
{
string str1, str2;
osstream strm1(str1), strm2(str2);
formatter f = expr::stream << expr::attr< my_class >(data::attr3());
f(rec, strm1);
strm2 << my_class(77);
BOOST_CHECK(equal_strings(strm1.str(), strm2.str()));
}
// Check how missing attribute values are handled
{
string str1;
osstream strm1(str1);
formatter f = expr::stream
<< expr::attr< int >(data::attr1())
<< expr::attr< int >(data::attr4()).or_throw()
<< expr::attr< double >(data::attr2());
BOOST_CHECK_THROW(f(rec, strm1), logging::runtime_error);
}
{
string str1, str2;
osstream strm1(str1), strm2(str2);
formatter f = expr::stream
<< expr::attr< int >(data::attr1())
<< expr::attr< int >(data::attr4())
<< expr::attr< double >(data::attr2());
f(rec, strm1);
strm2 << 10 << 5.5;
BOOST_CHECK(equal_strings(strm1.str(), strm2.str()));
}
}
