/usr/include/MYGUI/MyGUI_Any.h is in libmygui-dev 3.2.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | /*
* This source file is part of MyGUI. For the latest info, see http://mygui.info/
* Distributed under the MIT License
* (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
*/
// -- Based on boost::any, original copyright information follows --
// Copyright Kevlin Henney, 2000, 2001, 2002. All rights reserved.
//
// Distributed under the Boost Software License, Version 1.0.
// (See at http://www.boost.org/LICENSE_1_0.txt)
// -- End original copyright --
#ifndef MYGUI_ANY_H_
#define MYGUI_ANY_H_
#include "MyGUI_Prerequest.h"
#include "MyGUI_Diagnostic.h"
#include <algorithm>
#include <typeinfo>
namespace MyGUI
{
/** @example "Class Any usage"
@code
void f()
{
// RU: тестовый класс, с простыми типами все аналогично
// EN: test class, with simple types all is similar
struct Data { int value; };
// RU: экземпляр и инициализация
// EN: instance and initialization
Data data;
data.value = 0xDEAD;
// RU: создастся копия класса Data
// EN: copy of class Data will be created
MyGUI::Any any = data;
// RU: копия класса Data
// EN: copy of class Data
Data copy_data = *any.castType<Data>();
// RU: теперь value == 0xDEAD
// EN: now value == 0xDEAD
int value = copy_data.value;
// RU: создастся копия указателя на класс Data
// EN: copy of pointer on class Data will be created
any = &data;
// RU: копия указателя на класс Data и конкретно на объект data
// EN: copy of pointer on class Data and on object data
Data* copy_ptr = *any.castType<Data*>();
// RU: теперь data.value == 0
// EN: now value == 0
copy_ptr->value = 0;
}
@endcode
*/
class MYGUI_EXPORT Any
{
public:
struct AnyEmpty { };
static AnyEmpty Null;
Any();
Any(const Any::AnyEmpty& value);
Any(const Any& other);
template<typename ValueType>
Any(const ValueType& value) :
mContent(new Holder<ValueType>(value))
{
}
~Any();
Any& swap(Any& rhs);
template<typename ValueType>
Any& operator = (const ValueType& rhs)
{
Any(rhs).swap(*this);
return *this;
}
Any& operator = (const Any::AnyEmpty& rhs);
Any& operator = (const Any& rhs);
bool empty() const;
const std::type_info& getType() const;
template<typename ValueType>
ValueType* castType(bool _throw = true) const
{
if (this->getType() == typeid(ValueType))
return &static_cast<Any::Holder<ValueType> *>(this->mContent)->held;
MYGUI_ASSERT(!_throw, "Bad cast from type '" << getType().name() << "' to '" << typeid(ValueType).name() << "'");
return nullptr;
}
void* castUnsafe() const;
private:
class Placeholder
{
public:
virtual ~Placeholder() { }
public:
virtual const std::type_info& getType() const = 0;
virtual Placeholder* clone() const = 0;
};
template<typename ValueType>
class Holder :
public Placeholder
{
public:
Holder(const ValueType& value) :
held(value)
{
}
public:
virtual const std::type_info& getType() const
{
return typeid(ValueType);
}
virtual Placeholder* clone() const
{
return new Holder(held);
}
public:
ValueType held;
private:
Holder& operator=(const Holder&);
};
private:
Placeholder* mContent;
};
} // namespace MyGUI
#endif // MYGUI_ANY_H_
|