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move type_name outside of basic_json, make it a friend

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This commit is contained in:
Théo DELRIEU 2017-01-07 16:57:52 +01:00
parent d359684f2b
commit c833b22b7b
2 changed files with 46 additions and 40 deletions
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43
src/json.hpp
View file

@ -181,6 +181,27 @@ using is_unscoped_enum =
namespace detail
{
template <typename Json> std::string type_name(Json const &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";
}
}
// very useful construct against boilerplate (more boilerplate needed than in
// C++17: http://en.cppreference.com/w/cpp/types/void_t)
template <typename...> struct make_void
@ -585,6 +606,7 @@ template <
class basic_json
{
private:
template <typename Json> friend std::string detail::type_name(Json const &);
/// workaround type for MSVC
using basic_json_t = basic_json<ObjectType, ArrayType, StringType,
BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType,
@ -8129,26 +8151,7 @@ class basic_json
@since version 1.0.0
*/
std::string type_name() const
{
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";
}
}
std::string type_name() const { return detail::type_name(*this); }
private:
/*!

43
src/json.hpp.re2c
View file

@ -181,6 +181,27 @@ using is_unscoped_enum =
namespace detail
{
template <typename Json> std::string type_name(Json const &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";
}
}
// very useful construct against boilerplate (more boilerplate needed than in
// C++17: http://en.cppreference.com/w/cpp/types/void_t)
template <typename...> struct make_void
@ -586,6 +607,7 @@ template <
class basic_json
{
private:
template <typename Json> friend std::string detail::type_name(Json const &);
/// workaround type for MSVC
using basic_json_t = basic_json<ObjectType, ArrayType, StringType,
BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType,
@ -8127,26 +8149,7 @@ class basic_json
@since version 1.0.0
*/
std::string type_name() const
{
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";
}
}
std::string type_name() const { return detail::type_name(*this); }
private:
/*!