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SmallMain
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cocos2d-x/cocos/base/CCValue.h
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255
cocos2d-x/cocos/base/CCValue.h
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/****************************************************************************
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Copyright (c) 2013-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __cocos2d_libs__CCValue__
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#define __cocos2d_libs__CCValue__
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#include "base/ccMacros.h"
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#include "base/ccMacros.h"
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#include <string>
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#include <vector>
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#include <unordered_map>
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#include <map>
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/**
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* @addtogroup base
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* @{
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*/
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NS_CC_BEGIN
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class Value;
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typedef std::vector<Value> ValueVector;
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typedef std::map<std::string, Value> OrderedValueMap;
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typedef std::unordered_map<std::string, Value> ValueMap;
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typedef std::unordered_map<int, Value> ValueMapIntKey;
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CC_DLL extern const ValueVector ValueVectorNull;
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CC_DLL extern const ValueMap ValueMapNull;
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CC_DLL extern const ValueMapIntKey ValueMapIntKeyNull;
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/*
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* This class is provide as a wrapper of basic types, such as int and bool.
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*/
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class CC_DLL Value
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{
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public:
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/** A predefined Value that has not value. */
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static const Value Null;
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/** Default constructor. */
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Value();
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/** Create a Value by an unsigned char value. */
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explicit Value(unsigned char v);
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/** Create a Value by an integer value. */
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explicit Value(int v);
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/** Create a Value by an unsigned value. */
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explicit Value(unsigned int v);
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/** Create a Value by a float value. */
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explicit Value(float v);
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/** Create a Value by a double value. */
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explicit Value(double v);
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/** Create a Value by a bool value. */
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explicit Value(bool v);
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/** Create a Value by a char pointer. It will copy the chars internally. */
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explicit Value(const char* v);
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/** Create a Value by a string. */
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explicit Value(const std::string& v);
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/** Create a Value by a ValueVector object. */
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explicit Value(const ValueVector& v);
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/** Create a Value by a ValueVector object. It will use std::move internally. */
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explicit Value(ValueVector&& v);
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/** Create a Value by a ValueMap object. */
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explicit Value(const ValueMap& v);
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/** Create a Value by a ValueMap object. It will use std::move internally. */
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explicit Value(ValueMap&& v);
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/** Create a Value by a ValueMapIntKey object. */
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explicit Value(const ValueMapIntKey& v);
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/** Create a Value by a ValueMapIntKey object. It will use std::move internally. */
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explicit Value(ValueMapIntKey&& v);
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/** Create a Value by another Value object. */
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Value(const Value& other);
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/** Create a Value by a Value object. It will use std::move internally. */
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Value(Value&& other);
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/** Destructor. */
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~Value();
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/** Assignment operator, assign from Value to Value. */
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Value& operator= (const Value& other);
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/** Assignment operator, assign from Value to Value. It will use std::move internally. */
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Value& operator= (Value&& other);
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/** Assignment operator, assign from unsigned char to Value. */
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Value& operator= (unsigned char v);
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/** Assignment operator, assign from integer to Value. */
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Value& operator= (int v);
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/** Assignment operator, assign from integer to Value. */
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Value& operator= (unsigned int v);
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/** Assignment operator, assign from float to Value. */
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Value& operator= (float v);
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/** Assignment operator, assign from double to Value. */
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Value& operator= (double v);
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/** Assignment operator, assign from bool to Value. */
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Value& operator= (bool v);
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/** Assignment operator, assign from char* to Value. */
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Value& operator= (const char* v);
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/** Assignment operator, assign from string to Value. */
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Value& operator= (const std::string& v);
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/** Assignment operator, assign from ValueVector to Value. */
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Value& operator= (const ValueVector& v);
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/** Assignment operator, assign from ValueVector to Value. */
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Value& operator= (ValueVector&& v);
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/** Assignment operator, assign from ValueMap to Value. */
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Value& operator= (const ValueMap& v);
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/** Assignment operator, assign from ValueMap to Value. It will use std::move internally. */
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Value& operator= (ValueMap&& v);
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/** Assignment operator, assign from ValueMapIntKey to Value. */
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Value& operator= (const ValueMapIntKey& v);
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/** Assignment operator, assign from ValueMapIntKey to Value. It will use std::move internally. */
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Value& operator= (ValueMapIntKey&& v);
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/** != operator overloading */
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bool operator!= (const Value& v);
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/** != operator overloading */
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bool operator!= (const Value& v) const;
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/** == operator overloading */
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bool operator== (const Value& v);
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/** == operator overloading */
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bool operator== (const Value& v) const;
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/** Gets as a byte value. Will convert to unsigned char if possible, or will trigger assert error. */
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unsigned char asByte() const;
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/** Gets as an integer value. Will convert to integer if possible, or will trigger assert error. */
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int asInt() const;
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/** Gets as an unsigned value. Will convert to unsigned if possible, or will trigger assert error. */
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unsigned int asUnsignedInt() const;
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/** Gets as a float value. Will convert to float if possible, or will trigger assert error. */
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float asFloat() const;
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/** Gets as a double value. Will convert to double if possible, or will trigger assert error. */
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double asDouble() const;
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/** Gets as a bool value. Will convert to bool if possible, or will trigger assert error. */
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bool asBool() const;
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/** Gets as a string value. Will convert to string if possible, or will trigger assert error. */
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std::string asString() const;
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/** Gets as a ValueVector reference. Will convert to ValueVector if possible, or will trigger assert error. */
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ValueVector& asValueVector();
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/** Gets as a const ValueVector reference. Will convert to ValueVector if possible, or will trigger assert error. */
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const ValueVector& asValueVector() const;
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/** Gets as a ValueMap reference. Will convert to ValueMap if possible, or will trigger assert error. */
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ValueMap& asValueMap();
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/** Gets as a const ValueMap reference. Will convert to ValueMap if possible, or will trigger assert error. */
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const ValueMap& asValueMap() const;
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/** Gets as a ValueMapIntKey reference. Will convert to ValueMapIntKey if possible, or will trigger assert error. */
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ValueMapIntKey& asIntKeyMap();
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/** Gets as a const ValueMapIntKey reference. Will convert to ValueMapIntKey if possible, or will trigger assert error. */
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const ValueMapIntKey& asIntKeyMap() const;
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/**
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* Checks if the Value is null.
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* @return True if the Value is null, false if not.
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*/
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inline bool isNull() const { return _type == Type::NONE; }
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/** Value type wrapped by Value. */
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enum class Type
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{
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/// no value is wrapped, an empty Value
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NONE = 0,
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/// wrap byte
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BYTE,
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/// wrap integer
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INTEGER,
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/// wrap unsigned
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UNSIGNED,
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/// wrap float
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FLOAT,
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/// wrap double
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DOUBLE,
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/// wrap bool
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BOOLEAN,
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/// wrap string
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STRING,
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/// wrap vector
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VECTOR,
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/// wrap ValueMap
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MAP,
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/// wrap ValueMapIntKey
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INT_KEY_MAP
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};
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/** Gets the value type. */
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inline Type getType() const { return _type; }
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/** Gets the description of the class. */
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std::string getDescription() const;
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private:
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void clear();
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void reset(Type type);
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union
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{
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unsigned char byteVal;
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int intVal;
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unsigned int unsignedVal;
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float floatVal;
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double doubleVal;
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bool boolVal;
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std::string* strVal;
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ValueVector* vectorVal;
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ValueMap* mapVal;
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ValueMapIntKey* intKeyMapVal;
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}_field;
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Type _type;
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};
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/** @} */
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NS_CC_END
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#endif /* defined(__cocos2d_libs__CCValue__) */
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