#include "StarJson.hpp" #include "StarJsonBuilder.hpp" #include "StarJsonPath.hpp" #include "StarFormat.hpp" #include "StarLexicalCast.hpp" #include "StarIterator.hpp" #include "StarFile.hpp" namespace Star { Json::Type Json::typeFromName(String const& t) { if (t == "float") return Type::Float; else if (t == "bool") return Type::Bool; else if (t == "int") return Type::Int; else if (t == "string") return Type::String; else if (t == "array") return Type::Array; else if (t == "object") return Type::Object; else if (t == "null") return Type::Null; else throw JsonException(strf("String '{}' is not a valid json type", t)); } String Json::typeName(Type t) { switch (t) { case Type::Float: return "float"; case Type::Bool: return "bool"; case Type::Int: return "int"; case Type::String: return "string"; case Type::Array: return "array"; case Type::Object: return "object"; default: return "null"; } } bool Json::operator==(const Json& v) const { if (type() == Type::Null && v.type() == Type::Null) { return true; } else if (type() != v.type()) { if ((type() == Type::Float || type() == Type::Int) && (v.type() == Type::Float || v.type() == Type::Int)) return toDouble() == v.toDouble() && toInt() == v.toInt(); return false; } else { if (type() == Type::Float) return m_data.get() == v.m_data.get(); else if (type() == Type::Bool) return m_data.get() == v.m_data.get(); else if (type() == Type::Int) return m_data.get() == v.m_data.get(); else if (type() == Type::String) return *m_data.get() == *v.m_data.get(); else if (type() == Type::Array) return *m_data.get() == *v.m_data.get(); else if (type() == Type::Object) return *m_data.get() == *v.m_data.get(); } return false; } bool Json::operator!=(const Json& v) const { return !(*this == v); } bool Json::unique() const { if (m_data.is()) return m_data.get().unique(); else if (m_data.is()) return m_data.get().unique(); else if (m_data.is()) return m_data.get().unique(); else return true; } Json Json::ofType(Type t) { switch (t) { case Type::Float: return Json(0.0); case Type::Bool: return Json(false); case Type::Int: return Json(0); case Type::String: return Json(""); case Type::Array: return Json(JsonArray()); case Type::Object: return Json(JsonObject()); default: return Json(); } } Json Json::parse(String const& string) { return inputUtf32Json(string.begin(), string.end(), true); } Json Json::parseJson(String const& json) { return inputUtf32Json(json.begin(), json.end(), false); } Json::Json() {} Json::Json(double d) { m_data = d; } Json::Json(bool b) { m_data = b; } Json::Json(int i) { m_data = (int64_t)i; } Json::Json(long i) { m_data = (int64_t)i; } Json::Json(long long i) { m_data = (int64_t)i; } Json::Json(unsigned int i) { m_data = (int64_t)i; } Json::Json(unsigned long i) { m_data = (int64_t)i; } Json::Json(unsigned long long i) { m_data = (int64_t)i; } Json::Json(char const* s) { m_data = make_shared(s); } Json::Json(String::Char const* s) { m_data = make_shared(s); } Json::Json(String::Char const* s, size_t len) { m_data = make_shared(s, len); } Json::Json(String s) { m_data = make_shared(std::move(s)); } Json::Json(std::string s) { m_data = make_shared((std::move(s))); } Json::Json(JsonArray l) { m_data = make_shared(std::move(l)); } Json::Json(JsonObject m) { m_data = make_shared(std::move(m)); } double Json::toDouble() const { if (type() == Type::Float) return m_data.get(); if (type() == Type::Int) return (double)m_data.get(); throw JsonException::format("Improper conversion to double from {}", typeName()); } float Json::toFloat() const { return (float)toDouble(); } bool Json::toBool() const { if (type() != Type::Bool) throw JsonException::format("Improper conversion to bool from {}", typeName()); return m_data.get(); } int64_t Json::toInt() const { if (type() == Type::Float) { return (int64_t)m_data.get(); } else if (type() == Type::Int) { return m_data.get(); } else { throw JsonException::format("Improper conversion to int from {}", typeName()); } } uint64_t Json::toUInt() const { if (type() == Type::Float) { return (uint64_t)m_data.get(); } else if (type() == Type::Int) { return (uint64_t)m_data.get(); } else { throw JsonException::format("Improper conversion to unsigned int from {}", typeName()); } } String Json::toString() const { if (type() != Type::String) throw JsonException(strf("Cannot convert from {} to string", typeName())); return *m_data.get(); } JsonArray Json::toArray() const { if (type() != Type::Array) throw JsonException::format("Improper conversion to JsonArray from {}", typeName()); return *m_data.get(); } JsonObject Json::toObject() const { if (type() != Type::Object) throw JsonException::format("Improper conversion to JsonObject from {}", typeName()); return *m_data.get(); } StringConstPtr Json::stringPtr() const { if (type() != Type::String) throw JsonException(strf("Cannot convert from {} to string", typeName())); return m_data.get(); } JsonArrayConstPtr Json::arrayPtr() const { if (type() != Type::Array) throw JsonException::format("Improper conversion to JsonArray from {}", typeName()); return m_data.get(); } JsonObjectConstPtr Json::objectPtr() const { if (type() != Type::Object) throw JsonException::format("Improper conversion to JsonObject from {}", typeName()); return m_data.get(); } Json::IteratorWrapper Json::iterateArray() const { return IteratorWrapper{arrayPtr()}; } Json::IteratorWrapper Json::iterateObject() const { return IteratorWrapper{objectPtr()}; } Maybe Json::opt() const { if (isNull()) return {}; return *this; } Maybe Json::optDouble() const { if (isNull()) return {}; return toDouble(); } Maybe Json::optFloat() const { if (isNull()) return {}; return toFloat(); } Maybe Json::optBool() const { if (isNull()) return {}; return toBool(); } Maybe Json::optInt() const { if (isNull()) return {}; return toInt(); } Maybe Json::optUInt() const { if (isNull()) return {}; return toUInt(); } Maybe Json::optString() const { if (isNull()) return {}; return toString(); } Maybe Json::optArray() const { if (isNull()) return {}; return toArray(); } Maybe Json::optObject() const { if (isNull()) return {}; return toObject(); } size_t Json::size() const { if (type() == Type::Array) return m_data.get()->size(); else if (type() == Type::Object) return m_data.get()->size(); else throw JsonException("size() called on improper json type"); } bool Json::contains(String const& key) const { if (type() == Type::Object) return m_data.get()->contains(key); else throw JsonException("contains() called on improper json type"); } Json Json::get(size_t index) const { if (auto p = ptr(index)) return *p; throw JsonException(strf("Json::get({}) out of range", index)); } double Json::getDouble(size_t index) const { return get(index).toDouble(); } float Json::getFloat(size_t index) const { return get(index).toFloat(); } bool Json::getBool(size_t index) const { return get(index).toBool(); } int64_t Json::getInt(size_t index) const { return get(index).toInt(); } uint64_t Json::getUInt(size_t index) const { return get(index).toUInt(); } String Json::getString(size_t index) const { return get(index).toString(); } JsonArray Json::getArray(size_t index) const { return get(index).toArray(); } JsonObject Json::getObject(size_t index) const { return get(index).toObject(); } Json Json::get(size_t index, Json def) const { if (auto p = ptr(index)) return *p; return def; } double Json::getDouble(size_t index, double def) const { if (auto p = ptr(index)) return p->toDouble(); return def; } float Json::getFloat(size_t index, float def) const { if (auto p = ptr(index)) return p->toFloat(); return def; } bool Json::getBool(size_t index, bool def) const { if (auto p = ptr(index)) return p->toBool(); return def; } int64_t Json::getInt(size_t index, int64_t def) const { if (auto p = ptr(index)) return p->toInt(); return def; } uint64_t Json::getUInt(size_t index, int64_t def) const { if (auto p = ptr(index)) return p->toUInt(); return def; } String Json::getString(size_t index, String def) const { if (auto p = ptr(index)) return p->toString(); return def; } JsonArray Json::getArray(size_t index, JsonArray def) const { if (auto p = ptr(index)) return p->toArray(); return def; } JsonObject Json::getObject(size_t index, JsonObject def) const { if (auto p = ptr(index)) return p->toObject(); return def; } Json Json::get(String const& key) const { if (auto p = ptr(key)) return *p; throw JsonException(strf("No such key in Json::get(\"{}\")", key)); } double Json::getDouble(String const& key) const { return get(key).toDouble(); } float Json::getFloat(String const& key) const { return get(key).toFloat(); } bool Json::getBool(String const& key) const { return get(key).toBool(); } int64_t Json::getInt(String const& key) const { return get(key).toInt(); } uint64_t Json::getUInt(String const& key) const { return get(key).toUInt(); } String Json::getString(String const& key) const { return get(key).toString(); } JsonArray Json::getArray(String const& key) const { return get(key).toArray(); } JsonObject Json::getObject(String const& key) const { return get(key).toObject(); } Json Json::get(String const& key, Json def) const { if (auto p = ptr(key)) return *p; return def; } double Json::getDouble(String const& key, double def) const { auto p = ptr(key); if (p && *p) return p->toDouble(); return def; } float Json::getFloat(String const& key, float def) const { auto p = ptr(key); if (p && *p) return p->toFloat(); return def; } bool Json::getBool(String const& key, bool def) const { auto p = ptr(key); if (p && *p) return p->toBool(); return def; } int64_t Json::getInt(String const& key, int64_t def) const { auto p = ptr(key); if (p && *p) return p->toInt(); return def; } uint64_t Json::getUInt(String const& key, int64_t def) const { auto p = ptr(key); if (p && *p) return p->toUInt(); return def; } String Json::getString(String const& key, String def) const { auto p = ptr(key); if (p && *p) return p->toString(); return def; } JsonArray Json::getArray(String const& key, JsonArray def) const { auto p = ptr(key); if (p && *p) return p->toArray(); return def; } JsonObject Json::getObject(String const& key, JsonObject def) const { auto p = ptr(key); if (p && *p) return p->toObject(); return def; } Maybe Json::opt(String const& key) const { auto p = ptr(key); if (p && *p) return *p; return {}; } Maybe Json::optDouble(String const& key) const { auto p = ptr(key); if (p && *p) return p->toDouble(); return {}; } Maybe Json::optFloat(String const& key) const { auto p = ptr(key); if (p && *p) return p->toFloat(); return {}; } Maybe Json::optBool(String const& key) const { auto p = ptr(key); if (p && *p) return p->toBool(); return {}; } Maybe Json::optInt(String const& key) const { auto p = ptr(key); if (p && *p) return p->toInt(); return {}; } Maybe Json::optUInt(String const& key) const { auto p = ptr(key); if (p && *p) return p->toUInt(); return {}; } Maybe Json::optString(String const& key) const { auto p = ptr(key); if (p && *p) return p->toString(); return {}; } Maybe Json::optArray(String const& key) const { auto p = ptr(key); if (p && *p) return p->toArray(); return {}; } Maybe Json::optObject(String const& key) const { auto p = ptr(key); if (p && *p) return p->toObject(); return {}; } Json Json::query(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q); } double Json::queryDouble(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toDouble(); } float Json::queryFloat(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toFloat(); } bool Json::queryBool(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toBool(); } int64_t Json::queryInt(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toInt(); } uint64_t Json::queryUInt(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toUInt(); } String Json::queryString(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toString(); } JsonArray Json::queryArray(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toArray(); } JsonObject Json::queryObject(String const& q) const { return JsonPath::pathGet(*this, JsonPath::parseQueryPath, q).toObject(); } Json Json::query(String const& query, Json def) const { if (auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query)) return *json; return def; } double Json::queryDouble(String const& query, double def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toDouble(); return def; } float Json::queryFloat(String const& query, float def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toFloat(); return def; } bool Json::queryBool(String const& query, bool def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toBool(); return def; } int64_t Json::queryInt(String const& query, int64_t def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toInt(); return def; } uint64_t Json::queryUInt(String const& query, uint64_t def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toUInt(); return def; } String Json::queryString(String const& query, String const& def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toString(); return def; } JsonArray Json::queryArray(String const& query, JsonArray def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toArray(); return def; } JsonObject Json::queryObject(String const& query, JsonObject def) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, query); if (json && *json) return json->toObject(); return def; } Maybe Json::optQuery(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return *json; return {}; } Maybe Json::optQueryDouble(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toDouble(); return {}; } Maybe Json::optQueryFloat(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toFloat(); return {}; } Maybe Json::optQueryBool(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toBool(); return {}; } Maybe Json::optQueryInt(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toInt(); return {}; } Maybe Json::optQueryUInt(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toUInt(); return {}; } Maybe Json::optQueryString(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toString(); return {}; } Maybe Json::optQueryArray(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toArray(); return {}; } Maybe Json::optQueryObject(String const& path) const { auto json = JsonPath::pathFind(*this, JsonPath::parseQueryPath, path); if (json && *json) return json->toObject(); return {}; } Json Json::set(String key, Json value) const { auto map = toObject(); map[std::move(key)] = std::move(value); return map; } Json Json::setPath(String path, Json value) const { return JsonPath::pathSet(*this, JsonPath::parseQueryPath, path, value); } Json Json::erasePath(String path) const { return JsonPath::pathRemove(*this, JsonPath::parseQueryPath, path); } Json Json::setAll(JsonObject values) const { auto map = toObject(); for (auto& p : values) map[std::move(p.first)] = std::move(p.second); return map; } Json Json::eraseKey(String key) const { auto map = toObject(); map.erase(std::move(key)); return map; } Json Json::set(size_t index, Json value) const { auto array = toArray(); array[index] = std::move(value); return array; } Json Json::insert(size_t index, Json value) const { auto array = toArray(); array.insertAt(index, std::move(value)); return array; } Json Json::append(Json value) const { auto array = toArray(); array.append(std::move(value)); return array; } Json Json::eraseIndex(size_t index) const { auto array = toArray(); array.eraseAt(index); return array; } Json::Type Json::type() const { return (Type)m_data.typeIndex(); } String Json::typeName() const { return typeName(type()); } Json Json::convert(Type u) const { if (type() == u) return *this; switch (u) { case Type::Null: return Json(); case Type::Float: return toDouble(); case Type::Bool: return toBool(); case Type::Int: return toInt(); case Type::String: return toString(); case Type::Array: return toArray(); case Type::Object: return toObject(); default: throw JsonException::format("Improper conversion to type {}", typeName(u)); } } bool Json::isType(Type t) const { return type() == t; } bool Json::canConvert(Type t) const { if (type() == t) return true; if (t == Type::Null) return true; if ((type() == Type::Float || type() == Type::Int) && (t == Type::Float || t == Type::Int)) return true; return false; } bool Json::isNull() const { return type() == Type::Null; } Json::operator bool() const { return !isNull(); } String Json::repr(int pretty, bool sort) const { String result; outputUtf32Json(*this, std::back_inserter(result), pretty, sort); return result; } String Json::printJson(int pretty, bool sort) const { if (type() != Type::Object && type() != Type::Array) throw JsonException("printJson called on non-top-level JSON type"); return repr(pretty, sort); } std::ostream& operator<<(std::ostream& os, Json const& v) { outputUtf8Json(v, std::ostream_iterator(os), 0, false); return os; } std::ostream& operator<<(std::ostream& os, JsonObject const& v) { // Blargh copy os << Json(v); return os; } DataStream& operator<<(DataStream& os, const Json& v) { // Compatibility with old serialization, 0 was INVALID but INVALID is no // longer used. os.write((uint8_t)v.type() + 1); if (v.type() == Json::Type::Float) { os.write(v.toDouble()); } else if (v.type() == Json::Type::Bool) { os.write(v.toBool()); } else if (v.type() == Json::Type::Int) { os.writeVlqI(v.toInt()); } else if (v.type() == Json::Type::String) { os.write(v.toString()); } else if (v.type() == Json::Type::Array) { auto const& l = v.toArray(); os.writeVlqU(l.size()); for (auto const& v : l) os.write(v); } else if (v.type() == Json::Type::Object) { auto const& m = v.toObject(); os.writeVlqU(m.size()); for (auto const& v : m) { os.write(v.first); os.write(v.second); } } return os; } DataStream& operator>>(DataStream& os, Json& v) { // Compatibility with old serialization, 0 was INVALID but INVALID is no // longer used. uint8_t typeIndex = os.read(); if (typeIndex > 0) typeIndex -= 1; Json::Type type = (Json::Type)typeIndex; if (type == Json::Type::Float) { v = Json(os.read()); } else if (type == Json::Type::Bool) { v = Json(os.read()); } else if (type == Json::Type::Int) { v = Json(os.readVlqI()); } else if (type == Json::Type::String) { v = Json(os.read()); } else if (type == Json::Type::Array) { JsonArray l; size_t s = os.readVlqU(); for (size_t i = 0; i < s; ++i) l.append(os.read()); v = std::move(l); } else if (type == Json::Type::Object) { JsonObject m; size_t s = os.readVlqU(); for (size_t i = 0; i < s; ++i) { String k = os.read(); m[k] = os.read(); } v = std::move(m); } return os; } DataStream& operator<<(DataStream& ds, JsonArray const& l) { ds.writeContainer(l); return ds; } DataStream& operator>>(DataStream& ds, JsonArray& l) { ds.readContainer(l); return ds; } DataStream& operator<<(DataStream& ds, JsonObject const& m) { ds.writeMapContainer(m); return ds; } DataStream& operator>>(DataStream& ds, JsonObject& m) { ds.readMapContainer(m); return ds; } void Json::getHash(XXHash3& hasher) const { Json::Type type = (Json::Type)m_data.typeIndex(); if (type == Json::Type::Bool) hasher.push(m_data.get() ? "\2\1" : "\2\0", 2); else { hasher.push((const char*)&type, sizeof(type)); if (type == Json::Type::Float) hasher.push((const char*)m_data.ptr(), sizeof(double)); else if (type == Json::Type::Int) hasher.push((const char*)m_data.ptr(), sizeof(int64_t)); else if (type == Json::Type::String) { const String& str = *m_data.get(); hasher.push(str.utf8Ptr(), str.utf8Size()); } else if (type == Json::Type::Array) { for (Json const& json : *m_data.get()) json.getHash(hasher); } else if (type == Json::Type::Object) { for (auto const& pair : *m_data.get()) { hasher.push(pair.first.utf8Ptr(), pair.first.utf8Size()); pair.second.getHash(hasher); } } } } size_t hash::operator()(Json const& v) const { XXHash3 hasher; v.getHash(hasher); return hasher.digest(); } Json const* Json::ptr(size_t index) const { if (type() != Type::Array) throw JsonException::format("Cannot call get with index on Json type {}, must be Array type", typeName()); auto const& list = *m_data.get(); if (index >= list.size()) return nullptr; return &list[index]; } Json const* Json::ptr(String const& key) const { if (type() != Type::Object) throw JsonException::format("Cannot call get with key on Json type {}, must be Object type", typeName()); auto const& map = m_data.get(); auto i = map->find(key); if (i == map->end()) return nullptr; return &i->second; } Json jsonMerge(Json const& base, Json const& merger) { if (base.type() == Json::Type::Object && merger.type() == Json::Type::Object) { JsonObject merged = base.toObject(); for (auto const& p : merger.toObject()) { auto res = merged.insert(p); if (!res.second) res.first->second = jsonMerge(res.first->second, p.second); } return merged; } else if (merger.type() == Json::Type::Null) { return base; } else { return merger; } } }