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construct/include/ircd/json/json.h

84 lines
2.2 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_H
/// JavaScript Object Notation: formal grammars & tools
///
namespace ircd::json
{
IRCD_EXCEPTION(ircd::error, error);
IRCD_PANICKING(error, print_error);
IRCD_EXCEPTION(error, parse_error);
IRCD_EXCEPTION(error, type_error);
IRCD_EXCEPTION(error, not_found);
IRCD_EXCEPTION(parse_error, recursion_limit);
struct expectation_failure;
struct value;
struct member;
struct string;
struct object;
struct array;
struct vector;
struct iov;
enum type
{
STRING = 0,
OBJECT = 1,
ARRAY = 2,
NUMBER = 3,
LITERAL = 4,
};
enum type type(const string_view &);
enum type type(const string_view &, std::nothrow_t);
string_view reflect(const enum type &);
template<class... T> string_view stringify(const mutable_buffer &&mb, T&&... t);
}
#include "util.h"
#include "array.h"
#include "object.h"
#include "vector.h"
#include "value.h"
#include "member.h"
#include "iov.h"
#include "strung.h"
#include "tuple/tuple.h"
#include "stack.h"
namespace ircd
{
using json::operator ""_;
using json::operator<<;
using json::defined;
using json::for_each;
using json::until;
using json::get;
}
/// Convenience template for const rvalue mutable_buffers or basically
/// allowing a bracket initialization of a mutable_buffer in the argument
/// to stringify(). The const rvalue reference is on purpose. The stringify()
/// family of friends all use a non-const lvalue mutable_buffer as an append
/// only "stream" buffer. We don't want to modify any non-const instances of
/// the mutable_buffer you pass here by offering a `mutable_buffer &` overload
///
template<class... T>
ircd::string_view
ircd::json::stringify(const mutable_buffer &&mb,
T&&... t)
{
mutable_buffer mbc{mb};
return stringify(mbc, std::forward<T>(t)...);
}