mirror of
https://github.com/matrix-construct/construct
synced 2024-11-29 18:22:50 +01:00
130 lines
3.4 KiB
C++
130 lines
3.4 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_JSON_MEMBER_H
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namespace ircd::json
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{
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struct member;
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size_t serialized(const member *const &begin, const member *const &end);
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string_view stringify(mutable_buffer &, const member *const *const &begin, const member *const *const &end);
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string_view stringify(mutable_buffer &, const member *const &begin, const member *const &end);
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}
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/// A pair of json::value representing state for a member of an object.
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///
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/// This is slightly heavier than object::member as that only deals with
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/// a pair of strings while the value here holds more diverse native state.
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///
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/// The key value (member.first) should always be a STRING type. We don't use
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/// string_view directly in member.first because json::value can take ownership
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/// of a string or use a literal depending on the circumstance and it's more
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/// consistent this way.
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///
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struct ircd::json::member
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:std::pair<value, value>
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{
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using std::pair<value, value>::pair;
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template<class K, class V> member(const K &k, V&& v);
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explicit member(const string_view &k);
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explicit member(const object::member &m);
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member() = default;
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friend bool operator==(const member &a, const member &b);
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friend bool operator!=(const member &a, const member &b);
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friend bool operator<(const member &a, const member &b);
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friend bool operator==(const member &a, const string_view &b);
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friend bool operator!=(const member &a, const string_view &b);
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friend bool operator<(const member &a, const string_view &b);
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friend bool defined(const member &);
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friend size_t serialized(const member &);
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friend string_view stringify(mutable_buffer &, const member &);
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friend std::ostream &operator<<(std::ostream &, const member &);
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};
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namespace ircd::json
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{
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using members = std::initializer_list<member>;
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size_t serialized(const members &);
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string_view stringify(mutable_buffer &, const members &);
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}
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template<class K,
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class V>
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ircd::json::member::member(const K &k,
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V&& v)
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:std::pair<value, value>
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{
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value { k }, value { std::forward<V>(v) }
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}
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{}
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inline
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ircd::json::member::member(const object::member &m)
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:std::pair<value, value>
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{
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m.first, value { m.second, type(m.second) }
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}
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{}
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inline
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ircd::json::member::member(const string_view &k)
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:std::pair<value, value>
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{
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k, string_view{}
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}
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{}
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inline bool
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ircd::json::operator<(const member &a, const member &b)
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{
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return a.first < b.first;
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}
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inline bool
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ircd::json::operator!=(const member &a, const member &b)
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{
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return a.first != b.first;
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}
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inline bool
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ircd::json::operator==(const member &a, const member &b)
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{
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return a.first == b.first;
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}
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inline bool
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ircd::json::operator<(const member &a, const string_view &b)
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{
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return string_view{a.first.string, a.first.len} < b;
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}
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inline bool
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ircd::json::operator!=(const member &a, const string_view &b)
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{
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return string_view{a.first.string, a.first.len} != b;
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}
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inline bool
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ircd::json::operator==(const member &a, const string_view &b)
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{
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return string_view{a.first.string, a.first.len} == b;
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}
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inline bool
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ircd::json::defined(const member &a)
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{
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return defined(a.second);
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}
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