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Add json_pointer/string_t equality comparison operators (#3664)

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This commit is contained in:
Florian Albrechtskirchinger
2022-08-05 14:08:27 +02:00
committed by GitHub
parent e839f58a2a
commit 9e1a7c85e3
16 changed files with 582 additions and 61 deletions
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119
single_include/nlohmann/json.hpp
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@ -3373,7 +3373,7 @@ NLOHMANN_JSON_NAMESPACE_END
/// @brief JSON Pointer defines a string syntax for identifying a specific value within a JSON document
/// @sa https://json.nlohmann.me/api/json_pointer/
template<typename BasicJsonType>
template<typename RefStringType>
class json_pointer;
/*!
@ -14448,57 +14448,120 @@ class json_pointer
return result;
}
/*!
@brief compares two JSON pointers for equality
public:
#ifdef JSON_HAS_CPP_20
/// @brief compares two JSON pointers for equality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_eq/
template<typename RefStringTypeRhs>
bool operator==(const json_pointer<RefStringTypeRhs>& rhs) const noexcept
{
return reference_tokens == rhs.reference_tokens;
}
@param[in] lhs JSON pointer to compare
@param[in] rhs JSON pointer to compare
@return whether @a lhs is equal to @a rhs
@complexity Linear in the length of the JSON pointer
@exceptionsafety No-throw guarantee: this function never throws exceptions.
*/
/// @brief compares JSON pointer and string for equality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_eq/
bool operator==(const string_t& rhs) const
{
return *this == json_pointer(rhs);
}
#else
/// @brief compares two JSON pointers for equality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_eq/
template<typename RefStringTypeLhs, typename RefStringTypeRhs>
// NOLINTNEXTLINE(readability-redundant-declaration)
friend bool operator==(json_pointer<RefStringTypeLhs> const& lhs,
json_pointer<RefStringTypeRhs> const& rhs) noexcept;
friend bool operator==(const json_pointer<RefStringTypeLhs>& lhs,
const json_pointer<RefStringTypeRhs>& rhs) noexcept;
/*!
@brief compares two JSON pointers for inequality
/// @brief compares JSON pointer and string for equality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_eq/
template<typename RefStringTypeLhs, typename StringType>
// NOLINTNEXTLINE(readability-redundant-declaration)
friend bool operator==(const json_pointer<RefStringTypeLhs>& lhs,
const StringType& rhs);
@param[in] lhs JSON pointer to compare
@param[in] rhs JSON pointer to compare
@return whether @a lhs is not equal @a rhs
/// @brief compares string and JSON pointer for equality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_eq/
template<typename RefStringTypeRhs, typename StringType>
// NOLINTNEXTLINE(readability-redundant-declaration)
friend bool operator==(const StringType& lhs,
const json_pointer<RefStringTypeRhs>& rhs);
@complexity Linear in the length of the JSON pointer
@exceptionsafety No-throw guarantee: this function never throws exceptions.
*/
/// @brief compares two JSON pointers for inequality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_ne/
template<typename RefStringTypeLhs, typename RefStringTypeRhs>
// NOLINTNEXTLINE(readability-redundant-declaration)
friend bool operator!=(json_pointer<RefStringTypeLhs> const& lhs,
json_pointer<RefStringTypeRhs> const& rhs) noexcept;
friend bool operator!=(const json_pointer<RefStringTypeLhs>& lhs,
const json_pointer<RefStringTypeRhs>& rhs) noexcept;
/// @brief compares JSON pointer and string for inequality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_ne/
template<typename RefStringTypeLhs, typename StringType>
// NOLINTNEXTLINE(readability-redundant-declaration)
friend bool operator!=(const json_pointer<RefStringTypeLhs>& lhs,
const StringType& rhs);
/// @brief compares string and JSON pointer for inequality
/// @sa https://json.nlohmann.me/api/json_pointer/operator_ne/
template<typename RefStringTypeRhs, typename StringType>
// NOLINTNEXTLINE(readability-redundant-declaration)
friend bool operator!=(const StringType& lhs,
const json_pointer<RefStringTypeRhs>& rhs);
#endif
private:
/// the reference tokens
std::vector<string_t> reference_tokens;
};
#ifndef JSON_HAS_CPP_20
// functions cannot be defined inside class due to ODR violations
template<typename RefStringTypeLhs, typename RefStringTypeRhs>
inline bool operator==(json_pointer<RefStringTypeLhs> const& lhs,
json_pointer<RefStringTypeRhs> const& rhs) noexcept
inline bool operator==(const json_pointer<RefStringTypeLhs>& lhs,
const json_pointer<RefStringTypeRhs>& rhs) noexcept
{
return lhs.reference_tokens == rhs.reference_tokens;
}
template<typename RefStringTypeLhs,
typename StringType = typename json_pointer<RefStringTypeLhs>::string_t>
inline bool operator==(const json_pointer<RefStringTypeLhs>& lhs,
const StringType& rhs)
{
return lhs == json_pointer<RefStringTypeLhs>(rhs);
}
template<typename RefStringTypeRhs,
typename StringType = typename json_pointer<RefStringTypeRhs>::string_t>
inline bool operator==(const StringType& lhs,
const json_pointer<RefStringTypeRhs>& rhs)
{
return json_pointer<RefStringTypeRhs>(lhs) == rhs;
}
template<typename RefStringTypeLhs, typename RefStringTypeRhs>
inline bool operator!=(json_pointer<RefStringTypeLhs> const& lhs,
json_pointer<RefStringTypeRhs> const& rhs) noexcept
inline bool operator!=(const json_pointer<RefStringTypeLhs>& lhs,
const json_pointer<RefStringTypeRhs>& rhs) noexcept
{
return !(lhs == rhs);
}
template<typename RefStringTypeLhs,
typename StringType = typename json_pointer<RefStringTypeLhs>::string_t>
inline bool operator!=(const json_pointer<RefStringTypeLhs>& lhs,
const StringType& rhs)
{
return !(lhs == rhs);
}
template<typename RefStringTypeRhs,
typename StringType = typename json_pointer<RefStringTypeRhs>::string_t>
inline bool operator!=(const StringType& lhs,
const json_pointer<RefStringTypeRhs>& rhs)
{
return !(lhs == rhs);
}
#endif
NLOHMANN_JSON_NAMESPACE_END
// #include <nlohmann/detail/json_ref.hpp>