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construct/include/ircd/json/stack/chase.h

40 lines
1.1 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_CHASE_H
/// This device chases the current active path by updating its member pointers.
struct ircd::json::stack::chase
{
array *a {nullptr};
object *o {nullptr};
member *m {nullptr};
bool next() noexcept;
bool prev() noexcept;
chase(stack &s, const bool prechase = false) noexcept;
chase() = default;
};
/// This device chases the current active path by updating its member pointers.
struct ircd::json::stack::const_chase
{
const array *a {nullptr};
const object *o {nullptr};
const member *m {nullptr};
bool next() noexcept;
bool prev() noexcept;
const_chase(const stack &s, const bool prechase = false) noexcept;
const_chase() = default;
};