sourcemeta::core::JSONObject< Key, Value, Hash >::Entry Struct Reference

A single object property entry. More...

Public Member Functions
auto	key_equals (const KeyView key, const hash_type key_hash) const -> bool

Public Attributes
key_type	first
	The property key.
mapped_type	second
	The property value.
hash_type	hash
	The precomputed hash of the property key.

Detailed Description

template<typename Key, typename Value, typename Hash>
struct sourcemeta::core::JSONObject< Key, Value, Hash >::Entry

A single object property entry.

Member Function Documentation

key_equals()

template<typename Key, typename Value, typename Hash>

auto sourcemeta::core::JSONObject< Key, Value, Hash >::Entry::key_equals ( const KeyView key, const hash_type key_hash ) const -> bool

inlinenodiscard

Check whether this entry's key equals the given key, comparing the precomputed hashes first and only falling back to a string comparison when the hash is not perfect. For example:

#include <sourcemeta/core/json.h>
#include <cassert>
 
const sourcemeta::core::JSON document =
  sourcemeta::core::parse_json("{ \"foo\": 1 }");
const auto &entry{*document.as_object().cbegin()};
assert(entry.key_equals(
  "foo", sourcemeta::core::JSON::Object::hash("foo")));

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The documentation for this struct was generated from the following file:

• /__w/core/core/src/core/json/include/sourcemeta/core/json_object.h