mirror of
https://github.com/matrix-construct/construct
synced 2024-11-12 04:51:08 +01:00
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
|
// Matrix Construct
|
||
|
|
//
|
||
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
||
|
|
// Copyright (C) 2016-2023 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_STACK_ARRAY_H
|
||
|
|
|
||
|
|
/// stack::array is constructed under the scope of either a stack::member,
|
||
|
|
/// or a stack::array, or a stack itself. stack::object and stack::array
|
||
|
|
/// can be constructed directly under its scope, but not stack::member.
|
||
|
|
///
|
||
|
|
/// The same behavior as described by stack::object documentation applies
|
||
|
|
/// here translated to arrays.
|
||
|
|
///
|
||
|
|
struct ircd::json::stack::array
|
||
|
|
{
|
||
|
|
member m; ///< optional internal member
|
||
|
|
stack *s {nullptr}; ///< root stack ref
|
||
|
|
member *pm {nullptr}; ///< parent member (if value of one)
|
||
|
|
array *pa {nullptr}; ///< parent array (if value in one)
|
||
|
|
object *co {nullptr}; ///< current child object
|
||
|
|
array *ca {nullptr}; ///< current child array
|
||
|
|
size_t vc {0}; ///< values witnessed (monotonic)
|
||
|
|
|
||
|
|
void _pre_append();
|
||
|
|
void _post_append();
|
||
|
|
|
||
|
|
public:
|
||
|
|
template<class... T> void append(const json::tuple<T...> &);
|
||
|
|
void append(const json::value &);
|
||
|
|
|
||
|
|
array(member &pm); ///< Array is value of the named member
|
||
|
|
array(array &pa); ///< Array is value in the array
|
||
|
|
array(object &po, const string_view &name);
|
||
|
|
array(stack &s, const string_view &name);
|
||
|
|
array(stack &s);
|
||
|
|
array(const array &) = delete;
|
||
|
|
array(array &&) noexcept;
|
||
|
|
~array() noexcept;
|
||
|
|
|
||
|
|
static const array &top(const stack &);
|
||
|
|
static array &top(stack &);
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class... T>
|
||
|
|
inline void
|
||
|
|
ircd::json::stack::array::append(const json::tuple<T...> &t)
|
||
|
|
{
|
||
|
|
_pre_append();
|
||
|
|
const unwind post{[this]
|
||
|
|
{
|
||
|
|
_post_append();
|
||
|
|
}};
|
||
|
|
|
||
|
|
s->append(serialized(t), [&t](mutable_buffer buf)
|
||
|
|
{
|
||
|
|
return ircd::size(stringify(buf, t));
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void
|
||
|
|
ircd::json::stack::array::_post_append()
|
||
|
|
{
|
||
|
|
++vc;
|
||
|
|
}
|