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cleanup after #184

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Niels
2016-01-20 21:14:58 +01:00
parent 663ad13fc3
commit a04bd4f851
7 changed files with 103 additions and 58 deletions
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61
src/json.hpp
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@ -2416,17 +2416,33 @@ class basic_json
return is_number_float() ? &m_value.number_float : nullptr;
}
/// helper function to implement get_ref without code duplication
/// for const and non-const overloads
/// ThisType will be deduced as 'basic_jason' or 'const basic_json'
template<typename ReferenceType, typename ThisType>
/*!
@brief helper function to implement get_ref()
This funcion helps to implement get_ref() without code duplication for
const and non-const overloads
@tparam ThisType will be deduced as `basic_json` or `const basic_json`
@throw std::domain_error if ReferenceType does not match underlying value
type of the current JSON
*/
template<typename ReferenceType, typename ThisType>
static ReferenceType get_ref_impl(ThisType& obj)
{
using PointerType = typename std::add_pointer<ReferenceType>::type;
// delegate the call to get_ptr<>()
using PointerType = typename std::add_pointer<ReferenceType>::type;
auto ptr = obj.template get_ptr<PointerType>();
if (ptr) return *ptr;
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " + obj.type_name());
if (ptr != nullptr)
{
return *ptr;
}
else
{
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " +
obj.type_name());
}
}
public:
@ -2576,7 +2592,7 @@ class basic_json
return get_impl_ptr(static_cast<const PointerType>(nullptr));
}
/*!
/*!
@brief get a reference value (implicit)
Implict reference access to the internally stored JSON value. No copies are
@ -2585,17 +2601,22 @@ class basic_json
@warning Writing data to the referee of the result yields an undefined
state.
@tparam ReferenceType reference type; must be a reference to @ref array_t, @ref
object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, or @ref
number_float_t.
@tparam ReferenceType reference type; must be a reference to @ref array_t,
@ref object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, or
@ref number_float_t.
@return reference to the internally stored JSON value if the requested reference
type @a ReferenceType fits to the JSON value; throws std::domain_error otherwise
@return reference to the internally stored JSON value if the requested
reference type @a ReferenceType fits to the JSON value; throws
std::domain_error otherwise
@throw std::domain_error in case passed type @a ReferenceType is incompatible
with the stored JSON value
@throw std::domain_error in case passed type @a ReferenceType is
incompatible with the stored JSON value
@complexity Constant.
@liveexample{The example shows several calls to `get_ref()`.,get_ref}
@since version 1.0.1
*/
template<typename ReferenceType, typename
std::enable_if<
@ -2603,8 +2624,8 @@ class basic_json
, int>::type = 0>
ReferenceType get_ref()
{
// delegate call to get_ref_impl
return get_ref_impl<ReferenceType>(*this);
// delegate call to get_ref_impl
return get_ref_impl<ReferenceType>(*this);
}
/*!
@ -2614,12 +2635,12 @@ class basic_json
template<typename ReferenceType, typename
std::enable_if<
std::is_reference<ReferenceType>::value
and std::is_const< typename std::remove_reference<ReferenceType>::type >::value
and std::is_const<typename std::remove_reference<ReferenceType>::type>::value
, int>::type = 0>
ReferenceType get_ref() const
{
// delegate call to get_ref_impl
return get_ref_impl<ReferenceType>(*this);
// delegate call to get_ref_impl
return get_ref_impl<ReferenceType>(*this);
}
/*!