Give code outside basic_json the reference tokens of a json_pointer

detail::json_pointer_access returns the reference tokens of a pointer, so
that code resolving pointers without a basic_json value (such as the
zero-copy view) does not have to parse to_string() again. No change in
behavior.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-29 14:02:51 +02:00
parent daad8ea9b5
commit 358970ee7f
2 changed files with 42 additions and 0 deletions
+21
View File
@@ -30,6 +30,11 @@
NLOHMANN_JSON_NAMESPACE_BEGIN
namespace detail
{
struct json_pointer_access;
} // namespace detail
/// @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 RefStringType>
@@ -42,6 +47,8 @@ class json_pointer
template<typename>
friend class json_pointer;
friend struct detail::json_pointer_access;
template<typename T>
struct string_t_helper
{
@@ -1164,4 +1171,18 @@ inline bool operator<(const json_pointer<RefStringTypeLhs>& lhs,
}
#endif
namespace detail
{
/// the reference tokens of a json_pointer, for code that resolves pointers
/// without a basic_json value (such as the zero-copy view)
struct json_pointer_access
{
template<typename RefStringType>
static const std::vector<typename json_pointer<RefStringType>::string_t>& reference_tokens(const json_pointer<RefStringType>& ptr) noexcept
{
return ptr.reference_tokens;
}
};
} // namespace detail
NLOHMANN_JSON_NAMESPACE_END
+21
View File
@@ -19781,6 +19781,11 @@ NLOHMANN_JSON_NAMESPACE_END
NLOHMANN_JSON_NAMESPACE_BEGIN
namespace detail
{
struct json_pointer_access;
} // namespace detail
/// @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 RefStringType>
@@ -19793,6 +19798,8 @@ class json_pointer
template<typename>
friend class json_pointer;
friend struct detail::json_pointer_access;
template<typename T>
struct string_t_helper
{
@@ -20915,6 +20922,20 @@ inline bool operator<(const json_pointer<RefStringTypeLhs>& lhs,
}
#endif
namespace detail
{
/// the reference tokens of a json_pointer, for code that resolves pointers
/// without a basic_json value (such as the zero-copy view)
struct json_pointer_access
{
template<typename RefStringType>
static const std::vector<typename json_pointer<RefStringType>::string_t>& reference_tokens(const json_pointer<RefStringType>& ptr) noexcept
{
return ptr.reference_tokens;
}
};
} // namespace detail
NLOHMANN_JSON_NAMESPACE_END
// #include <nlohmann/detail/json_ref.hpp>