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put back type_name in basic_json

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This can however not be done easily for value_t, since
external_constructor depends on it, as is operator< which was moved
outside basic_json too.
This is not really an issue, since all basic_json classes share the same
enum
This commit is contained in:
Théo DELRIEU 2017-01-21 17:09:41 +01:00
parent f997758cad
commit 7d771c71ed
2 changed files with 60 additions and 66 deletions
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63
src/json.hpp
View File

@ -187,27 +187,6 @@ struct conjunction<B1, Bn...>
template <class B> struct negation : std::integral_constant < bool, !B::value > {};
template <typename BasicJsonType> std::string type_name(const BasicJsonType& j)
{
switch (j.m_type)
{
case value_t::null:
return "null";
case value_t::object:
return "object";
case value_t::array:
return "array";
case value_t::string:
return "string";
case value_t::boolean:
return "boolean";
case value_t::discarded:
return "discarded";
default:
return "number";
}
}
// dispatch utility (taken from ranges-v3)
template <unsigned N> struct priority_tag : priority_tag < N - 1 > {};
@ -514,7 +493,7 @@ void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val)
break;
default:
JSON_THROW(
std::domain_error("type must be number, but is " + type_name(j)));
std::domain_error("type must be number, but is " + j.type_name()));
}
}
@ -593,7 +572,7 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b)
{
if (!j.is_boolean())
{
JSON_THROW(std::domain_error("type must be boolean, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be boolean, but is " + j.type_name()));
}
b = *j.template get_ptr<const typename BasicJsonType::boolean_t*>();
}
@ -603,7 +582,7 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s)
{
if (!j.is_string())
{
JSON_THROW(std::domain_error("type must be string, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be string, but is " + j.type_name()));
}
s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
}
@ -640,7 +619,7 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::array_t& arr)
{
if (!j.is_array())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
arr = *j.template get_ptr<const typename BasicJsonType::array_t*>();
}
@ -653,13 +632,13 @@ void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
// (except when it's null.. ?)
if (j.is_null())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
if (not std::is_same<T, BasicJsonType>::value)
{
if (!j.is_array())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
}
for (auto it = j.rbegin(), end = j.rend(); it != end; ++it)
@ -712,14 +691,14 @@ void from_json(const BasicJsonType& j, CompatibleArrayType& arr)
{
if (j.is_null())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("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 (!j.is_array())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
}
from_json_array_impl(j, arr, priority_tag<1> {});
@ -734,7 +713,7 @@ void from_json(const BasicJsonType& j, CompatibleObjectType& obj)
{
if (!j.is_object())
{
JSON_THROW(std::domain_error("type must be object, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be object, but is " + j.type_name()));
}
auto inner_object = j.template get_ptr<const typename BasicJsonType::object_t*>();
@ -783,7 +762,7 @@ void from_json(const BasicJsonType& j, ArithmeticType& val)
break;
default:
JSON_THROW(
std::domain_error("type must be number, but is " + type_name(j)));
std::domain_error("type must be number, but is " + j.type_name()));
}
}
@ -989,7 +968,6 @@ class basic_json
{
private:
template <::nlohmann::value_t> friend struct detail::external_constructor;
template <typename BasicJsonType> friend std::string detail::type_name(const BasicJsonType&);
/// workaround type for MSVC
using basic_json_t = basic_json<ObjectType, ArrayType, StringType,
BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType,
@ -7914,7 +7892,26 @@ class basic_json
*/
std::string type_name() const
{
return detail::type_name(*this);
{
switch (m_type)
{
case value_t::null:
return "null";
case value_t::object:
return "object";
case value_t::array:
return "array";
case value_t::string:
return "string";
case value_t::boolean:
return "boolean";
case value_t::discarded:
return "discarded";
default:
return "number";
}
}
}
private:

63
src/json.hpp.re2c
View File

@ -187,27 +187,6 @@ struct conjunction<B1, Bn...>
template <class B> struct negation : std::integral_constant < bool, !B::value > {};
template <typename BasicJsonType> std::string type_name(const BasicJsonType& j)
{
switch (j.m_type)
{
case value_t::null:
return "null";
case value_t::object:
return "object";
case value_t::array:
return "array";
case value_t::string:
return "string";
case value_t::boolean:
return "boolean";
case value_t::discarded:
return "discarded";
default:
return "number";
}
}
// dispatch utility (taken from ranges-v3)
template <unsigned N> struct priority_tag : priority_tag < N - 1 > {};
@ -514,7 +493,7 @@ void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val)
break;
default:
JSON_THROW(
std::domain_error("type must be number, but is " + type_name(j)));
std::domain_error("type must be number, but is " + j.type_name()));
}
}
@ -593,7 +572,7 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b)
{
if (!j.is_boolean())
{
JSON_THROW(std::domain_error("type must be boolean, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be boolean, but is " + j.type_name()));
}
b = *j.template get_ptr<const typename BasicJsonType::boolean_t*>();
}
@ -603,7 +582,7 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s)
{
if (!j.is_string())
{
JSON_THROW(std::domain_error("type must be string, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be string, but is " + j.type_name()));
}
s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
}
@ -640,7 +619,7 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::array_t& arr)
{
if (!j.is_array())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
arr = *j.template get_ptr<const typename BasicJsonType::array_t*>();
}
@ -653,13 +632,13 @@ void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
// (except when it's null.. ?)
if (j.is_null())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
if (not std::is_same<T, BasicJsonType>::value)
{
if (!j.is_array())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
}
for (auto it = j.rbegin(), end = j.rend(); it != end; ++it)
@ -712,14 +691,14 @@ void from_json(const BasicJsonType& j, CompatibleArrayType& arr)
{
if (j.is_null())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("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 (!j.is_array())
{
JSON_THROW(std::domain_error("type must be array, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be array, but is " + j.type_name()));
}
}
from_json_array_impl(j, arr, priority_tag<1> {});
@ -734,7 +713,7 @@ void from_json(const BasicJsonType& j, CompatibleObjectType& obj)
{
if (!j.is_object())
{
JSON_THROW(std::domain_error("type must be object, but is " + type_name(j)));
JSON_THROW(std::domain_error("type must be object, but is " + j.type_name()));
}
auto inner_object = j.template get_ptr<const typename BasicJsonType::object_t*>();
@ -783,7 +762,7 @@ void from_json(const BasicJsonType& j, ArithmeticType& val)
break;
default:
JSON_THROW(
std::domain_error("type must be number, but is " + type_name(j)));
std::domain_error("type must be number, but is " + j.type_name()));
}
}
@ -989,7 +968,6 @@ class basic_json
{
private:
template <::nlohmann::value_t> friend struct detail::external_constructor;
template <typename BasicJsonType> friend std::string detail::type_name(const BasicJsonType&);
/// workaround type for MSVC
using basic_json_t = basic_json<ObjectType, ArrayType, StringType,
BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType,
@ -7914,7 +7892,26 @@ class basic_json
*/
std::string type_name() const
{
return detail::type_name(*this);
{
switch (m_type)
{
case value_t::null:
return "null";
case value_t::object:
return "object";
case value_t::array:
return "array";
case value_t::string:
return "string";
case value_t::boolean:
return "boolean";
case value_t::discarded:
return "discarded";
default:
return "number";
}
}
}
private: