mirror of
https://github.com/matrix-construct/construct
synced 2024-10-31 10:58:54 +01:00
107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_JSON_VECTOR_H
|
|
|
|
namespace ircd::json
|
|
{
|
|
struct vector;
|
|
|
|
bool empty(const json::vector &);
|
|
size_t size(const json::vector &);
|
|
bool operator!(const json::vector &);
|
|
}
|
|
|
|
/// Interface for non-standard, non-delimited concatenations of objects
|
|
///
|
|
/// This class parses a "vector of objects" with a similar strategy and
|
|
/// interface to that of json::array etc. The elements of the vector are
|
|
/// JSON objects delimited only by their structure. This is primarily for
|
|
/// test vectors and internal use and should not be used in public facing
|
|
/// code.
|
|
///
|
|
/// As with json::array, the same stateless forward-iteration notice applies
|
|
/// here. This object will not perform well for random access.
|
|
///
|
|
struct ircd::json::vector
|
|
:string_view
|
|
{
|
|
struct const_iterator;
|
|
|
|
using value_type = const object;
|
|
using pointer = value_type *;
|
|
using reference = value_type &;
|
|
using iterator = const_iterator;
|
|
using size_type = size_t;
|
|
using difference_type = ptrdiff_t;
|
|
|
|
const_iterator end() const;
|
|
const_iterator begin() const;
|
|
|
|
const_iterator find(size_t i) const;
|
|
value_type at(const size_t &i) const;
|
|
value_type operator[](const size_t &i) const;
|
|
|
|
bool empty() const;
|
|
operator bool() const;
|
|
size_t count() const;
|
|
size_t size() const;
|
|
|
|
using string_view::string_view;
|
|
};
|
|
|
|
namespace ircd::json
|
|
{
|
|
bool operator==(const vector::const_iterator &, const vector::const_iterator &);
|
|
bool operator!=(const vector::const_iterator &, const vector::const_iterator &);
|
|
bool operator<=(const vector::const_iterator &, const vector::const_iterator &);
|
|
bool operator>=(const vector::const_iterator &, const vector::const_iterator &);
|
|
bool operator<(const vector::const_iterator &, const vector::const_iterator &);
|
|
bool operator>(const vector::const_iterator &, const vector::const_iterator &);
|
|
}
|
|
|
|
struct ircd::json::vector::const_iterator
|
|
{
|
|
using value_type = const object;
|
|
using pointer = value_type *;
|
|
using reference = value_type &;
|
|
using iterator = const_iterator;
|
|
using size_type = size_t;
|
|
using difference_type = ptrdiff_t;
|
|
using iterator_category = std::forward_iterator_tag;
|
|
|
|
protected:
|
|
friend class vector;
|
|
|
|
const char *start {nullptr};
|
|
const char *stop {nullptr};
|
|
object state;
|
|
|
|
const_iterator(const char *const &start, const char *const &stop)
|
|
:start{start}
|
|
,stop{stop}
|
|
{}
|
|
|
|
public:
|
|
value_type *operator->() const { return &state; }
|
|
value_type &operator*() const { return *operator->(); }
|
|
|
|
const_iterator &operator++();
|
|
|
|
const_iterator() = default;
|
|
|
|
friend bool operator==(const const_iterator &, const const_iterator &);
|
|
friend bool operator!=(const const_iterator &, const const_iterator &);
|
|
friend bool operator<=(const const_iterator &, const const_iterator &);
|
|
friend bool operator>=(const const_iterator &, const const_iterator &);
|
|
friend bool operator<(const const_iterator &, const const_iterator &);
|
|
friend bool operator>(const const_iterator &, const const_iterator &);
|
|
};
|