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https://github.com/matrix-construct/construct
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ircd::json: Break up json.h into util.h
This commit is contained in:
Jason Volk
parent
01235e3851
commit
2e356709bd
2 changed files with 94 additions and 85 deletions
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@ -35,8 +35,9 @@ namespace ircd::json
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struct value;
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struct member;
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struct array;
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struct string;
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struct object;
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struct array;
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struct vector;
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struct iov;
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@ -52,65 +53,23 @@ namespace ircd::json
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enum type type(const string_view &, std::nothrow_t);
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string_view reflect(const enum type &);
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using name_hash_t = size_t;
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constexpr name_hash_t name_hash(const char *const name, const size_t len = 0);
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constexpr name_hash_t name_hash(const string_view &name);
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constexpr name_hash_t operator ""_(const char *const name, const size_t len);
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/// Higher order type beyond a string to cleanly delimit multiple keys.
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using path = std::initializer_list<string_view>;
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std::ostream &operator<<(std::ostream &, const path &);
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extern const string_view literal_null;
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extern const string_view literal_true;
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extern const string_view literal_false;
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extern const string_view empty_string;
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extern const string_view empty_object;
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extern const string_view empty_array;
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/// These templates are generic frontends for building a JSON string. They
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/// eventually all lead to the stringify() friend function of the argument
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/// you pass to the template.
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struct strung;
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template<size_t SIZE> struct buffer;
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template<class... T> string_view stringify(const mutable_buffer &&mb, T&&... t);
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template<class... T> size_t print(const mutable_buffer &buf, T&&... t);
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template<size_t SIZE> struct buffer;
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struct strung;
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size_t serialized(const string_view &);
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string_view stringify(mutable_buffer &, const string_view &);
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struct string;
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using members = std::initializer_list<member>;
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// Validate JSON - checks if canonical value.
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bool valid(const string_view &, std::nothrow_t) noexcept;
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void valid(const string_view &);
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// Convert to canonical JSON
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string_view canonize(const mutable_buffer &out, const string_view &in);
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std::string canonize(const string_view &in);
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}
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/// Strong type representing quoted strings in JSON (which may be unquoted
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/// automatically when this type is encountered in a tuple etc)
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struct ircd::json::string
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:string_view
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{
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using string_view::string_view;
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};
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#include "array.h"
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#include "object.h"
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#include "vector.h"
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/// Convenience template to allocate std::string and print() arguments to it.
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///
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struct ircd::json::strung
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:std::string
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{
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template<class... T> strung(T&&... t);
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};
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#include "util.h"
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#include "array.h"
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#include "object.h"
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#include "vector.h"
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#include "value.h"
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#include "member.h"
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#include "property.h"
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@ -126,6 +85,14 @@ namespace ircd
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using json::until;
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}
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/// Strong type representing quoted strings in JSON (which may be unquoted
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/// automatically when this type is encountered in a tuple etc)
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struct ircd::json::string
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:string_view
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{
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using string_view::string_view;
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};
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template<size_t SIZE>
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struct ircd::json::buffer
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:string_view
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@ -138,7 +105,6 @@ struct ircd::json::buffer
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{}
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};
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///
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/// Convenience template for const rvalue mutable_buffers or basically
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/// allowing a bracket initialization of a mutable_buffer in the argument
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/// to stringify(). The const rvalue reference is on purpose. The stringify()
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@ -155,7 +121,6 @@ ircd::json::stringify(const mutable_buffer &&mb,
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return stringify(mbc, std::forward<T>(t)...);
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}
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///
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/// Convenience template using the syntax print(mutable_buffer, ...)
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/// which stringifies with null termination into buffer.
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///
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@ -205,37 +170,3 @@ ircd::json::strung::strung(T&&... t)
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}()}
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{
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}
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inline std::ostream &
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ircd::json::operator<<(std::ostream &s, const path &p)
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{
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auto it(std::begin(p));
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if(it != std::end(p))
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{
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s << *it;
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++it;
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}
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for(; it != std::end(p); ++it)
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s << '.' << *it;
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return s;
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}
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constexpr ircd::json::name_hash_t
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ircd::json::operator ""_(const char *const text, const size_t len)
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{
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return name_hash(text, len);
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}
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constexpr ircd::json::name_hash_t
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ircd::json::name_hash(const string_view &name)
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{
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return ircd::hash(name);
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}
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constexpr ircd::json::name_hash_t
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ircd::json::name_hash(const char *const name, const size_t len)
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{
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return ircd::hash(name);
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}
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78
include/ircd/json/util.h
Normal file
78
include/ircd/json/util.h
Normal file
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@ -0,0 +1,78 @@
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// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 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. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_JSON_UTIL_H
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namespace ircd::json
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{
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using name_hash_t = size_t;
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constexpr name_hash_t name_hash(const char *const name, const size_t len = 0);
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constexpr name_hash_t name_hash(const string_view &name);
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constexpr name_hash_t operator ""_(const char *const name, const size_t len);
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/// Higher order type beyond a string to cleanly delimit multiple keys.
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using path = std::initializer_list<string_view>;
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std::ostream &operator<<(std::ostream &, const path &);
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extern const string_view literal_null;
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extern const string_view literal_true;
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extern const string_view literal_false;
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extern const string_view empty_string;
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extern const string_view empty_object;
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extern const string_view empty_array;
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size_t serialized(const string_view &);
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string_view stringify(mutable_buffer &, const string_view &);
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using members = std::initializer_list<member>;
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// Validate JSON - checks if canonical value.
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bool valid(const string_view &, std::nothrow_t) noexcept;
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void valid(const string_view &);
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// Convert to canonical JSON
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string_view canonize(const mutable_buffer &out, const string_view &in);
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std::string canonize(const string_view &in);
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}
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inline std::ostream &
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ircd::json::operator<<(std::ostream &s, const path &p)
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{
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auto it(std::begin(p));
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if(it != std::end(p))
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{
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s << *it;
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++it;
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}
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for(; it != std::end(p); ++it)
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s << '.' << *it;
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return s;
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}
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constexpr ircd::json::name_hash_t
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ircd::json::operator ""_(const char *const text, const size_t len)
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{
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return name_hash(text, len);
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}
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constexpr ircd::json::name_hash_t
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ircd::json::name_hash(const string_view &name)
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{
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return ircd::hash(name);
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}
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constexpr ircd::json::name_hash_t
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ircd::json::name_hash(const char *const name, const size_t len)
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{
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return ircd::hash(name);
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}
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