mirror of
https://github.com/matrix-construct/construct
synced 2024-11-17 23:40:57 +01:00
d9a4f06bf6
This is not a move to c++17. If the compiler happens to have support for c++17 namespace scope resolution, they have been kind enough to backport it to gnu++14. This limits our support for really old c++14 compilers, but that was limited anyway. GCC 6.1 and clang 3.6 tested.
277 lines
7 KiB
C++
277 lines
7 KiB
C++
/*
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* Copyright (C) 2017 Charybdis Development Team
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* Copyright (C) 2017 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.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#define HAVE_IRCD_JSON_INDEX_H
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struct ircd::json::index
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{
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struct member;
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struct const_iterator;
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using key_type = value;
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using mapped_type = value;
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using value_type = const member;
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using size_type = size_t;
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using difference_type = size_t;
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using key_compare = std::less<member>;
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using index_type = std::vector<member>;
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index_type idx;
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const_iterator begin() const;
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const_iterator end() const;
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const_iterator cbegin();
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const_iterator cend();
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bool empty() const;
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size_t count() const;
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size_t size() const;
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const_iterator find(const string_view &name) const;
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bool has(const string_view &name) const;
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const value &operator[](const string_view &name) const;
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const value &at(const string_view &name) const;
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const_iterator erase(const const_iterator &s, const const_iterator &e);
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void erase(const const_iterator &s);
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bool erase(const string_view &name);
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operator std::string() const;
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IRCD_OVERLOAD(recursive)
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index(std::initializer_list<member>);
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index(const object &d);
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index(recursive_t, const object &d);
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index() = default;
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index(index &&) = default;
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index(const index &) = delete;
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friend index &operator+=(index &, const object &); // integration
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friend index operator+(const object &, const object &); // integral
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friend object serialize(const index &, char *&start, char *const &stop);
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friend size_t print(char *const &buf, const size_t &max, const index &);
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friend std::ostream &operator<<(std::ostream &, const index &);
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};
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struct ircd::json::index::member
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:std::pair<value, value>
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{
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template<class K> member(const K &k, std::initializer_list<member> v);
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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 std::ostream &operator<<(std::ostream &, const member &);
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};
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struct ircd::json::index::const_iterator
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{
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using value_type = const member;
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using pointer = value_type *;
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using reference = value_type &;
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using difference_type = size_t;
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using iterator_category = std::bidirectional_iterator_tag;
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protected:
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friend class index;
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index::index_type::const_iterator it;
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operator const auto &() const { return it; }
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const_iterator(const decltype(it) &it)
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:it{it}
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{}
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public:
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value_type *operator->() const { return it.operator->(); }
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value_type &operator*() const { return it.operator*(); }
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const_iterator &operator++() { ++it; return *this; }
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const_iterator &operator--() { --it; return *this; }
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friend bool operator==(const const_iterator &a, const const_iterator &b);
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friend bool operator!=(const const_iterator &a, const const_iterator &b);
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friend bool operator<(const const_iterator &a, const const_iterator &b);
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};
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inline const ircd::json::value &
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ircd::json::index::operator[](const string_view &name)
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const
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{
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return at(name);
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}
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inline bool
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ircd::json::index::has(const string_view &name)
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const
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{
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return find(name) != end();
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}
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inline ircd::json::index::const_iterator
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ircd::json::index::find(const string_view &name)
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const
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{
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return std::find(std::begin(idx), std::end(idx), name);
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}
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inline size_t
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ircd::json::index::count()
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const
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{
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return idx.size();
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}
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inline bool
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ircd::json::index::empty()
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const
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{
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return idx.empty();
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}
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inline ircd::json::index::const_iterator
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ircd::json::index::cbegin()
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{
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return { std::begin(idx) };
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}
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inline ircd::json::index::const_iterator
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ircd::json::index::cend()
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{
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return { std::end(idx) };
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}
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inline ircd::json::index::const_iterator
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ircd::json::index::begin()
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const
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{
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return { std::begin(idx) };
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}
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inline ircd::json::index::const_iterator
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ircd::json::index::end()
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const
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{
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return { std::end(idx) };
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}
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template<class K,
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class V>
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ircd::json::index::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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template<class K>
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ircd::json::index::member::member(const K &k,
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std::initializer_list<member> v)
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:std::pair<value, value>
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{
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value { k }, value { std::make_unique<index>(std::move(v)) }
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}
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{}
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inline
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ircd::json::index::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::index::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 index::member &a, const index::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 index::member &a, const index::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 index::member &a, const index::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 index::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 index::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 index::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 index::const_iterator &a, const index::const_iterator &b)
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{
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return a.it < b.it;
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}
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inline bool
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ircd::json::operator!=(const index::const_iterator &a, const index::const_iterator &b)
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{
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return a.it != b.it;
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}
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inline bool
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ircd::json::operator==(const index::const_iterator &a, const index::const_iterator &b)
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{
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return a.it == b.it;
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}
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