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🔀 merge branch 'develop' into feature/exceptions_3.0.0

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This commit is contained in:
Niels Lohmann
2017-03-12 20:22:30 +01:00
parent 28dbe4e651 8feaf8dc94
commit 855cdcf05c
8 changed files with 229 additions and 90 deletions
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86
src/json.hpp
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@ -468,16 +468,8 @@ struct external_constructor<value_t::number_float>
template<typename BasicJsonType>
static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept
{
// replace infinity and NAN by null
if (not std::isfinite(val))
{
j = BasicJsonType{};
}
else
{
j.m_type = value_t::number_float;
j.m_value = val;
}
j.m_type = value_t::number_float;
j.m_value = val;
j.assert_invariant();
}
};
@ -904,22 +896,15 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::array_t& arr)
}
// forward_list doesn't have an insert method
template<typename BasicJsonType, typename T, typename Allocator>
template<typename BasicJsonType, typename T, typename Allocator,
enable_if_t<std::is_convertible<BasicJsonType, T>::value, int> = 0>
void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
{
// do not perform the check when user wants to retrieve jsons
// (except when it's null.. ?)
if (j.is_null())
if (not j.is_array())
{
JSON_THROW(type_error(302, "type must be array, but is " + j.type_name()));
}
if (not std::is_same<T, BasicJsonType>::value)
{
if (not j.is_array())
{
JSON_THROW(type_error(302, "type must be array, but is " + j.type_name()));
}
}
for (auto it = j.rbegin(), end = j.rend(); it != end; ++it)
{
l.push_front(it->template get<T>());
@ -951,8 +936,8 @@ auto from_json_array_impl(const BasicJsonType& j, CompatibleArrayType& arr, prio
using std::end;
arr.reserve(j.size());
std::transform(
j.begin(), j.end(), std::inserter(arr, end(arr)), [](const BasicJsonType & i)
std::transform(j.begin(), j.end(),
std::inserter(arr, end(arr)), [](const BasicJsonType & i)
{
// get<BasicJsonType>() returns *this, this won't call a from_json
// method when value_type is BasicJsonType
@ -962,22 +947,15 @@ auto from_json_array_impl(const BasicJsonType& j, CompatibleArrayType& arr, prio
template<typename BasicJsonType, typename CompatibleArrayType,
enable_if_t<is_compatible_array_type<BasicJsonType, CompatibleArrayType>::value and
std::is_convertible<BasicJsonType, typename CompatibleArrayType::value_type>::value and
not std::is_same<typename BasicJsonType::array_t, CompatibleArrayType>::value, int> = 0>
void from_json(const BasicJsonType& j, CompatibleArrayType& arr)
{
if (j.is_null())
if (not j.is_array())
{
JSON_THROW(type_error(302, "type must be array, but is " + j.type_name()));
}
// when T == BasicJsonType, do not check if value_t is correct
if (not std::is_same<typename CompatibleArrayType::value_type, BasicJsonType>::value)
{
if (not j.is_array())
{
JSON_THROW(type_error(302, "type must be array, but is " + j.type_name()));
}
}
from_json_array_impl(j, arr, priority_tag<1> {});
}
@ -6916,6 +6894,13 @@ class basic_json
*/
void dump_float(number_float_t x)
{
// NaN / inf
if (not std::isfinite(x) or std::isnan(x))
{
o.write("null", 4);
return;
}
// special case for 0.0 and -0.0
if (x == 0)
{
@ -8020,6 +8005,35 @@ class basic_json
}
}
/*!
@brief check if the next byte belongs to a string
While parsing a map, the keys must be strings. This function checks if the
current byte is one of the start bytes for a string in MessagePack:
- 0xa0 - 0xbf: fixstr
- 0xd9: str 8
- 0xda: str 16
- 0xdb: str 32
@param[in] v MessagePack serialization
@param[in] idx byte index in @a v to check for a string
@throw std::invalid_argument if `v[idx]` does not belong to a string
*/
static void msgpack_expect_string(const std::vector<uint8_t>& v, size_t idx)
{
check_length(v.size(), 1, idx);
const auto byte = v[idx];
if ((byte >= 0xa0 and byte <= 0xbf) or (byte >= 0xd9 and byte <= 0xdb))
{
return;
}
JSON_THROW(std::invalid_argument("error parsing a msgpack string @ " + std::to_string(idx) + ": " + std::to_string(static_cast<int>(v[idx]))));
}
/*!
@brief create a JSON value from a given MessagePack vector
@ -8054,6 +8068,7 @@ class basic_json
const size_t len = v[current_idx] & 0x0f;
for (size_t i = 0; i < len; ++i)
{
msgpack_expect_string(v, idx);
std::string key = from_msgpack_internal(v, idx);
result[key] = from_msgpack_internal(v, idx);
}
@ -8233,6 +8248,7 @@ class basic_json
idx += 2; // skip 2 size bytes
for (size_t i = 0; i < len; ++i)
{
msgpack_expect_string(v, idx);
std::string key = from_msgpack_internal(v, idx);
result[key] = from_msgpack_internal(v, idx);
}
@ -8246,6 +8262,7 @@ class basic_json
idx += 4; // skip 4 size bytes
for (size_t i = 0; i < len; ++i)
{
msgpack_expect_string(v, idx);
std::string key = from_msgpack_internal(v, idx);
result[key] = from_msgpack_internal(v, idx);
}
@ -11697,11 +11714,10 @@ basic_json_parser_74:
result.m_type = value_t::number_float;
result.m_value = val;
// replace infinity and NAN by null
// throw in case of infinity or NAN
if (not std::isfinite(result.m_value.number_float))
{
result.m_type = value_t::null;
result.m_value = basic_json::json_value();
JSON_THROW(std::out_of_range("number overflow: " + get_token_string()));
}
return true;