|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Colada |
|
4
|
|
|
{ |
|
5
|
|
|
use Colada\X\LazyObjectProxy; |
|
6
|
|
|
use InvalidArgumentException; |
|
7
|
|
|
|
|
8
|
|
|
if (!function_exists('\\Colada\\x')) { |
|
9
|
|
|
/** |
|
10
|
|
|
* Represents future value (useful for processing collection elements with {@see \Colada\Collection::mapBy()}, for example). |
|
11
|
|
|
* |
|
12
|
|
|
* Example: |
|
13
|
|
|
* <code> |
|
14
|
|
|
* $users->acceptBy(\Colada\x()->isActive()); |
|
15
|
|
|
* </code> |
|
16
|
|
|
* |
|
17
|
|
|
* And example for PHP 5.6: |
|
18
|
|
|
* <code> |
|
19
|
|
|
* use function Colada\x; |
|
20
|
|
|
* |
|
21
|
|
|
* $users->acceptBy(x()->isActive()); |
|
22
|
|
|
* </code> |
|
23
|
|
|
* |
|
24
|
|
|
* vs. |
|
25
|
|
|
* |
|
26
|
|
|
* <code> |
|
27
|
|
|
* $users->acceptBy( |
|
28
|
|
|
* function($user) { return $user->isActive(); } |
|
29
|
|
|
* ); |
|
30
|
|
|
* </code> |
|
31
|
|
|
* |
|
32
|
|
|
* @api |
|
33
|
|
|
* |
|
34
|
|
|
* @param null|string $t Return class type hint (for PHPStorm, see .phpstorm.meta.php in the package's root) |
|
35
|
|
|
* |
|
36
|
|
|
* @return callable |
|
37
|
|
|
*/ |
|
38
|
|
|
function x($t = null) |
|
|
|
|
|
|
39
|
|
|
{ |
|
40
|
|
|
return new LazyObjectProxy(); |
|
41
|
|
|
} |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
if (!function_exists('\\Colada\\lazy')) { |
|
45
|
|
|
/** |
|
46
|
|
|
* Wraps object to proxy, that collects all actions and plays them only when asked. |
|
47
|
|
|
* |
|
48
|
|
|
* Example: |
|
49
|
|
|
* <code> |
|
50
|
|
|
* use function Colada\lazy; |
|
51
|
|
|
* |
|
52
|
|
|
* $value = lazy(new \ArrayObject([1, 2, 3]))->count(); |
|
53
|
|
|
* |
|
54
|
|
|
* echo $value(); // Will print "3". |
|
55
|
|
|
* </code> |
|
56
|
|
|
* |
|
57
|
|
|
* @api |
|
58
|
|
|
* |
|
59
|
|
|
* @param mixed $object |
|
60
|
|
|
* |
|
61
|
|
|
* @return callable |
|
62
|
|
|
*/ |
|
63
|
|
|
function lazy($object) |
|
64
|
|
|
{ |
|
65
|
|
|
if (!is_object($object)) { |
|
66
|
|
|
throw new InvalidArgumentException('Only objects can be wrapped.'); |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
|
|
return new LazyObjectProxy(function () use ($object) { |
|
70
|
|
|
return $object; |
|
71
|
|
|
}); |
|
72
|
|
|
} |
|
73
|
|
|
} |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
namespace Colada\X |
|
77
|
|
|
{ |
|
78
|
|
|
use ArrayAccess; |
|
79
|
|
|
use Closure; |
|
80
|
|
|
use ReflectionFunction; |
|
81
|
|
|
use ReflectionMethod; |
|
82
|
|
|
use ReflectionObject; |
|
83
|
|
|
|
|
84
|
|
|
if (!function_exists('\\Colada\\X\\id')) { |
|
85
|
|
|
/** |
|
86
|
|
|
* @param $value |
|
87
|
|
|
* |
|
88
|
|
|
* @return mixed |
|
89
|
|
|
*/ |
|
90
|
|
|
function id($value) |
|
91
|
|
|
{ |
|
92
|
|
|
return $value; |
|
93
|
|
|
} |
|
94
|
|
|
} |
|
95
|
|
|
|
|
96
|
|
|
if (!function_exists('\\Colada\\X\\is_array_accessible')) { |
|
97
|
|
|
/** |
|
98
|
|
|
* @param mixed $value |
|
99
|
|
|
* |
|
100
|
|
|
* @return bool |
|
101
|
|
|
*/ |
|
102
|
|
|
function is_array_accessible($value) |
|
103
|
|
|
{ |
|
104
|
|
|
return is_array($value) || (is_object($value) && ($value instanceof ArrayAccess)); |
|
105
|
|
|
} |
|
106
|
|
|
} |
|
107
|
|
|
|
|
108
|
|
|
if (!function_exists('\\Colada\\X\\as_closure')) { |
|
109
|
|
|
/** |
|
110
|
|
|
* Create \Closure view of given callable |
|
111
|
|
|
* |
|
112
|
|
|
* Closure style calling can speed up callback (see http://php.net/manual/en/reflectionfunction.getclosure.php |
|
113
|
|
|
* for details). |
|
114
|
|
|
* |
|
115
|
|
|
* @see https://wiki.php.net/rfc/closurefromcallable |
|
116
|
|
|
* |
|
117
|
|
|
* @param callable $callback |
|
118
|
|
|
* |
|
119
|
|
|
* @return Closure |
|
120
|
|
|
*/ |
|
121
|
|
|
function as_closure(callable $callback) |
|
122
|
|
|
{ |
|
123
|
|
|
if (method_exists('Closure','fromCallable')) { |
|
124
|
|
|
// Available as of PHP 7.1 |
|
125
|
|
|
$closure = Closure::fromCallable($callback); |
|
126
|
|
|
} else { |
|
127
|
|
|
if (is_object($callback) && ($callback instanceof Closure)) { |
|
128
|
|
|
$closure = $callback; |
|
129
|
|
|
} elseif (is_object($callback)) { |
|
130
|
|
|
// Object with __invoke(). |
|
131
|
|
|
$closure = (new ReflectionObject($callback))->getMethod('__invoke')->getClosure($callback); |
|
132
|
|
|
} elseif (is_array($callback) && is_object($callback[0])) { |
|
133
|
|
|
// Object method. |
|
134
|
|
|
$closure = (new ReflectionMethod($callback[0], $callback[1]))->getClosure($callback[0]); |
|
135
|
|
|
} elseif (is_array($callback)) { |
|
136
|
|
|
// Static method. |
|
137
|
|
|
$closure = (new ReflectionMethod($callback[0], $callback[1]))->getClosure(); |
|
138
|
|
|
} else { |
|
139
|
|
|
// Function name as a string. |
|
140
|
|
|
$closure = (new ReflectionFunction($callback))->getClosure(); |
|
141
|
|
|
} |
|
142
|
|
|
} |
|
143
|
|
|
|
|
144
|
|
|
return $closure; |
|
145
|
|
|
} |
|
146
|
|
|
} |
|
147
|
|
|
} |
|
148
|
|
|
|
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.