150 lines
3.8 KiB
C++
150 lines
3.8 KiB
C++
// Copyright (c) 2011-2016 The Cryptonote developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <map>
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#include <string>
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#include <vector>
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namespace Common {
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class JsonValue {
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public:
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typedef std::string Key;
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typedef std::vector<JsonValue> Array;
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typedef bool Bool;
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typedef int64_t Integer;
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typedef std::nullptr_t Nil;
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typedef std::map<Key, JsonValue> Object;
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typedef double Real;
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typedef std::string String;
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enum Type {
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ARRAY,
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BOOL,
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INTEGER,
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NIL,
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OBJECT,
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REAL,
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STRING
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};
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JsonValue();
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JsonValue(const JsonValue& other);
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JsonValue(JsonValue&& other);
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JsonValue(Type valueType);
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JsonValue(const Array& value);
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JsonValue(Array&& value);
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explicit JsonValue(Bool value);
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JsonValue(Integer value);
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JsonValue(Nil value);
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JsonValue(const Object& value);
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JsonValue(Object&& value);
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JsonValue(Real value);
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JsonValue(const String& value);
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JsonValue(String&& value);
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template<size_t size> JsonValue(const char(&value)[size]) {
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new(valueString)String(value, size - 1);
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type = STRING;
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}
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~JsonValue();
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JsonValue& operator=(const JsonValue& other);
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JsonValue& operator=(JsonValue&& other);
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JsonValue& operator=(const Array& value);
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JsonValue& operator=(Array&& value);
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//JsonValue& operator=(Bool value);
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JsonValue& operator=(Integer value);
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JsonValue& operator=(Nil value);
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JsonValue& operator=(const Object& value);
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JsonValue& operator=(Object&& value);
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JsonValue& operator=(Real value);
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JsonValue& operator=(const String& value);
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JsonValue& operator=(String&& value);
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template<size_t size> JsonValue& operator=(const char(&value)[size]) {
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if (type != STRING) {
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destructValue();
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type = NIL;
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new(valueString)String(value, size - 1);
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type = STRING;
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} else {
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reinterpret_cast<String*>(valueString)->assign(value, size - 1);
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}
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return *this;
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}
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bool isArray() const;
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bool isBool() const;
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bool isInteger() const;
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bool isNil() const;
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bool isObject() const;
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bool isReal() const;
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bool isString() const;
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Type getType() const;
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Array& getArray();
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const Array& getArray() const;
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Bool getBool() const;
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Integer getInteger() const;
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Object& getObject();
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const Object& getObject() const;
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Real getReal() const;
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String& getString();
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const String& getString() const;
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size_t size() const;
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JsonValue& operator[](size_t index);
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const JsonValue& operator[](size_t index) const;
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JsonValue& pushBack(const JsonValue& value);
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JsonValue& pushBack(JsonValue&& value);
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JsonValue& operator()(const Key& key);
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const JsonValue& operator()(const Key& key) const;
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bool contains(const Key& key) const;
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JsonValue& insert(const Key& key, const JsonValue& value);
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JsonValue& insert(const Key& key, JsonValue&& value);
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// sets or creates value, returns reference to self
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JsonValue& set(const Key& key, const JsonValue& value);
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JsonValue& set(const Key& key, JsonValue&& value);
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size_t erase(const Key& key);
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static JsonValue fromString(const std::string& source);
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std::string toString() const;
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friend std::ostream& operator<<(std::ostream& out, const JsonValue& jsonValue);
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friend std::istream& operator>>(std::istream& in, JsonValue& jsonValue);
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private:
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Type type;
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union {
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uint8_t valueArray[sizeof(Array)];
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Bool valueBool;
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Integer valueInteger;
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uint8_t valueObject[sizeof(Object)];
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Real valueReal;
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uint8_t valueString[sizeof(std::string)];
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};
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void destructValue();
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void readArray(std::istream& in);
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void readTrue(std::istream& in);
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void readFalse(std::istream& in);
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void readNull(std::istream& in);
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void readNumber(std::istream& in, char c);
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void readObject(std::istream& in);
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void readString(std::istream& in);
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};
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}
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