|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Akizuki\enum; |
|
4
|
|
|
|
|
5
|
|
|
use Akizuki\enum\Exceptions\ { |
|
6
|
|
|
EnumConstantTypeException, |
|
7
|
|
|
InvalidInitializerException, |
|
8
|
|
|
DuplicatedConstantException |
|
9
|
|
|
}; |
|
10
|
|
|
use BadMethodCallException; |
|
11
|
|
|
use ReflectionClass; |
|
12
|
|
|
use Akizuki\BSC\StandardClass; |
|
13
|
|
|
|
|
14
|
|
|
/** |
|
15
|
|
|
* [ Abstract Class ] Enumeration |
|
16
|
|
|
* |
|
17
|
|
|
* Provides basic function of Enumeration. |
|
18
|
|
|
* |
|
19
|
|
|
* @author 4kizuki <[email protected]> |
|
20
|
|
|
* @copyright 2017 4kizuki. All Rights Reserved. |
|
21
|
|
|
* @package 4kizuki/php-enum |
|
22
|
|
|
* @since 1.0.0 |
|
23
|
|
|
*/ |
|
24
|
|
|
abstract class Enum extends StandardClass { |
|
25
|
|
|
|
|
26
|
|
|
private static $___constants = [ ]; |
|
27
|
|
|
protected $scalar; |
|
28
|
|
|
|
|
29
|
14 |
|
public function __construct( $scalar ) { |
|
30
|
|
|
|
|
31
|
14 |
|
self::_init( ); |
|
32
|
|
|
|
|
33
|
8 |
|
if( !self::_validate_constants( $scalar ) or !isset( self::$___constants[ static::class ][ 1 ][ $scalar ] ) ) |
|
34
|
5 |
|
throw new InvalidInitializerException; |
|
35
|
|
|
|
|
36
|
3 |
|
$this->scalar = $scalar; |
|
37
|
|
|
|
|
38
|
3 |
|
} |
|
39
|
|
|
|
|
40
|
5 |
|
final public static function __callStatic( string $name, array $args ) { |
|
41
|
|
|
|
|
42
|
5 |
|
if( !empty( $args ) ) throw new BadMethodCallException; |
|
43
|
|
|
|
|
44
|
4 |
|
self::_init( ); |
|
45
|
|
|
|
|
46
|
2 |
|
if( !isset( self::$___constants[ static::class ][ 0 ][ $name ] ) ) |
|
47
|
1 |
|
throw new InvalidInitializerException; |
|
48
|
|
|
|
|
49
|
1 |
|
$class = static::class; |
|
50
|
1 |
|
return new $class( self::$___constants[ static::class ][ 0 ][ $name ] ); |
|
51
|
|
|
|
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
17 |
|
private static function _init( ) { |
|
55
|
|
|
|
|
56
|
17 |
|
if( !isset( self::$___constants[ static::class ] ) ) { |
|
57
|
|
|
|
|
58
|
11 |
|
$csts = ( new ReflectionClass( static::class ) )->getConstants( ); |
|
59
|
11 |
|
$vals = [ ]; |
|
60
|
|
|
|
|
61
|
11 |
|
foreach( $csts as $key => $value ) { |
|
62
|
|
|
|
|
63
|
11 |
|
if( !static::_validate_constants( $value ) ) |
|
64
|
7 |
|
throw new EnumConstantTypeException( static::class, $key, gettype( $value ) ); |
|
65
|
|
|
|
|
66
|
5 |
|
if( isset( $vals[ $value ] ) ) |
|
67
|
1 |
|
throw new DuplicatedConstantException( static::class, $key ); |
|
68
|
|
|
|
|
69
|
5 |
|
$vals[$value] = true; |
|
70
|
|
|
|
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
3 |
|
self::$___constants[ static::class ] = [ $csts, $vals ]; |
|
74
|
|
|
|
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
9 |
|
} |
|
78
|
|
|
|
|
79
|
|
|
public function value( ) { return $this->scalar; } |
|
80
|
|
|
|
|
81
|
12 |
|
protected static function _validate_constants( $value ) : bool { |
|
82
|
|
|
|
|
83
|
12 |
|
if( is_int( $value ) ) return true; |
|
84
|
10 |
|
if( is_string( $value ) && $value !== '' ) return true; |
|
85
|
6 |
|
return false; |
|
86
|
|
|
|
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
|
|
} |
4kizuki /
php-enum
