mirror of
https://github.com/love2d/love.git
synced 2026-08-12 16:40:57 +02:00
Alex Szpakowski
124 lines
2.5 KiB
C++
124 lines
2.5 KiB
C++
/**
|
|
* Copyright (c) 2006-2017 LOVE Development Team
|
|
*
|
|
* This software is provided 'as-is', without any express or implied
|
|
* warranty. In no event will the authors be held liable for any damages
|
|
* arising from the use of this software.
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
*
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software. If you use this software
|
|
* in a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
**/
|
|
|
|
#ifndef LOVE_VARIANT_H
|
|
#define LOVE_VARIANT_H
|
|
|
|
#include "common/runtime.h"
|
|
#include "common/Object.h"
|
|
#include "common/int.h"
|
|
|
|
#include <cstring>
|
|
#include <vector>
|
|
|
|
namespace love
|
|
{
|
|
|
|
class Variant
|
|
{
|
|
public:
|
|
|
|
enum Type
|
|
{
|
|
UNKNOWN = 0,
|
|
BOOLEAN,
|
|
NUMBER,
|
|
STRING,
|
|
SMALLSTRING,
|
|
LUSERDATA,
|
|
FUSERDATA,
|
|
NIL,
|
|
TABLE
|
|
};
|
|
|
|
Variant();
|
|
Variant(bool boolean);
|
|
Variant(double number);
|
|
Variant(const char *string, size_t len);
|
|
Variant(void *userdata);
|
|
Variant(love::Type *udatatype, void *userdata);
|
|
Variant(std::vector<std::pair<Variant, Variant>> *table);
|
|
Variant(const Variant &v);
|
|
Variant(Variant &&v);
|
|
~Variant();
|
|
|
|
Variant &operator = (const Variant &v);
|
|
|
|
Type getType() const { return type; }
|
|
|
|
static Variant fromLua(lua_State *L, int n, bool allowTables = true);
|
|
void toLua(lua_State *L) const;
|
|
|
|
private:
|
|
|
|
class SharedString : public love::Object
|
|
{
|
|
public:
|
|
|
|
SharedString(const char *string, size_t len)
|
|
: len(len)
|
|
{
|
|
str = new char[len+1];
|
|
memcpy(str, string, len);
|
|
}
|
|
virtual ~SharedString() { delete[] str; }
|
|
|
|
char *str;
|
|
size_t len;
|
|
};
|
|
|
|
class SharedTable : public love::Object
|
|
{
|
|
public:
|
|
|
|
SharedTable(std::vector<std::pair<Variant, Variant>> *table)
|
|
: table(table)
|
|
{
|
|
}
|
|
|
|
virtual ~SharedTable() { delete table; }
|
|
|
|
std::vector<std::pair<Variant, Variant>> *table;
|
|
};
|
|
|
|
static const int MAX_SMALL_STRING_LENGTH = 15;
|
|
|
|
Type type;
|
|
love::Type *udatatype;
|
|
|
|
union Data
|
|
{
|
|
bool boolean;
|
|
double number;
|
|
SharedString *string;
|
|
void *userdata;
|
|
SharedTable *table;
|
|
struct
|
|
{
|
|
char str[MAX_SMALL_STRING_LENGTH];
|
|
uint8 len;
|
|
} smallstring;
|
|
} data;
|
|
|
|
}; // Variant
|
|
} // love
|
|
|
|
#endif // LOVE_VARIANT_H
|