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tweak SFINAE checks for internal types (see commit body)

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only check for public types (iterators, json_pointer)

for private ones (m_array.iterator, primitive_iterator) simply double
parentheses on relevant Catch checks
This commit is contained in:
Théo DELRIEU
2017-01-08 18:17:33 +01:00
parent 317883b21b
commit be6b417c87
4 changed files with 146 additions and 154 deletions
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26
src/json.hpp.re2c
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@ -469,14 +469,13 @@ struct is_compatible_float_type
std::is_floating_point<CompatibleFloat>::value;
};
template <typename T, typename BasicJson, typename PrimitiveIterator>
struct is_basic_json_nested_class
template <typename BasicJson, typename T>
struct is_basic_json_nested_type
{
static auto constexpr value = std::is_same<T, typename BasicJson::iterator>::value or
std::is_same<T, typename BasicJson::const_iterator>::value or
std::is_same<T, typename BasicJson::reverse_iterator>::value or
std::is_same<T, typename BasicJson::const_reverse_iterator>::value or
std::is_same<T, PrimitiveIterator>::value or
std::is_same<T, typename BasicJson::json_pointer>::value;
};
@ -1844,19 +1843,16 @@ class basic_json
// constructor chosen when:
// - JSONSerializer::to_json exists for type T
// - T is not a istream, nor convertible to basic_json (float, vectors, etc)
template <
typename T,
enable_if_t<not std::is_base_of<std::istream, uncvref_t<T>>::value and
not detail::is_basic_json_nested_class<uncvref_t<T>, basic_json_t, primitive_iterator_t>::value and
not std::is_same<uncvref_t<T>, basic_json_t>::value and
not std::is_same<uncvref_t<T>, typename basic_json_t::array_t::iterator>::value and
not std::is_same<uncvref_t<T>, typename basic_json_t::object_t::iterator>::value and
detail::has_to_json<JSONSerializer, basic_json,
uncvref_t<T>>::value,
int> = 0 >
basic_json(T && val)
template <typename T, typename U = uncvref_t<T>,
enable_if_t<
not std::is_base_of<std::istream, U>::value and
not std::is_same<U, basic_json_t>::value and
not detail::is_basic_json_nested_type<basic_json_t,U>::value and
detail::has_to_json<JSONSerializer, basic_json, U>::value,
int> = 0>
basic_json(T &&val)
{
JSONSerializer<uncvref_t<T>>::to_json(*this, std::forward<T>(val));
JSONSerializer<uncvref_t<T>>::to_json(*this, std::forward<T>(val));
}
/*!