|
1
|
|
|
<?php |
|
2
|
|
|
namespace Aerophant\Ramda; |
|
3
|
|
|
|
|
4
|
|
|
/** |
|
5
|
|
|
* @param int $a |
|
6
|
|
|
* @param int $b |
|
7
|
|
|
* @return int |
|
8
|
|
|
*/ |
|
9
|
|
|
function add() |
|
10
|
|
|
{ |
|
11
|
|
|
$add = function (int $a, int $b) { |
|
12
|
|
|
return $a + $b; |
|
13
|
|
|
}; |
|
14
|
|
|
$arguments = func_get_args(); |
|
15
|
|
|
$curried = curryN($add, 2); |
|
16
|
|
|
return call_user_func_array($curried, $arguments); |
|
17
|
|
|
} |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* @param mixed $data |
|
21
|
|
|
* @return \Closure |
|
22
|
|
|
*/ |
|
23
|
|
|
function always() |
|
24
|
|
|
{ |
|
25
|
|
|
$always = function ($data) { |
|
26
|
|
|
return function () use ($data) { |
|
27
|
|
|
return $data; |
|
28
|
|
|
}; |
|
29
|
|
|
}; |
|
30
|
|
|
$arguments = func_get_args(); |
|
31
|
|
|
$curried = curryN($always, 1); |
|
32
|
|
|
return call_user_func_array($curried, $arguments); |
|
33
|
|
|
} |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* @return callable |
|
37
|
|
|
* @throws \Exception |
|
38
|
|
|
*/ |
|
39
|
|
|
function compose() |
|
40
|
|
|
{ |
|
41
|
|
|
$arguments = array_reverse(func_get_args()); |
|
42
|
|
|
return call_user_func_array('Aerophant\Ramda\pipe', $arguments); |
|
43
|
|
|
} |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* @param string $class |
|
47
|
|
|
* @return \Closure |
|
48
|
|
|
*/ |
|
49
|
|
|
function construct() |
|
50
|
|
|
{ |
|
51
|
|
|
$construct = function ($class) { |
|
52
|
|
|
return function () use ($class) { |
|
53
|
|
|
return new $class(); |
|
54
|
|
|
}; |
|
55
|
|
|
}; |
|
56
|
|
|
$arguments = func_get_args(); |
|
57
|
|
|
$curried = curryN($construct, 1); |
|
58
|
|
|
return call_user_func_array($curried, $arguments); |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
|
|
function curryN(callable $fn, int $numberOfArguments) |
|
62
|
|
|
{ |
|
63
|
|
|
return function () use ($fn, $numberOfArguments) { |
|
64
|
|
|
$arguments = func_get_args(); |
|
65
|
|
|
$length = count($arguments); |
|
66
|
|
|
if ($length > $numberOfArguments) { |
|
67
|
|
|
throw new \InvalidArgumentException( |
|
68
|
|
|
"Number of passed($length) parameters is greater than expected($numberOfArguments)" |
|
69
|
|
|
); |
|
70
|
|
|
} |
|
71
|
|
|
// NO CURRY |
|
72
|
|
|
if ($length == $numberOfArguments) { |
|
73
|
|
|
return call_user_func_array($fn, $arguments); |
|
74
|
|
|
} |
|
75
|
|
|
// AUTO CURRY |
|
76
|
|
|
$curriedFn = function () use ($fn, $arguments) { |
|
77
|
|
|
$curriedArguments = func_get_args(); |
|
78
|
|
|
return call_user_func_array($fn, array_merge($arguments, $curriedArguments)); |
|
79
|
|
|
}; |
|
80
|
|
|
return curryN($curriedFn, $numberOfArguments - $length); |
|
81
|
|
|
}; |
|
82
|
|
|
} |
|
83
|
|
|
|
|
84
|
|
|
/** |
|
85
|
|
|
* @return callable |
|
86
|
|
|
* @throws \Exception |
|
87
|
|
|
*/ |
|
88
|
|
|
function pipe() |
|
89
|
|
|
{ |
|
90
|
|
|
$arguments = func_get_args(); |
|
91
|
|
|
$length = count($arguments); |
|
92
|
|
|
if ($length === 0) { |
|
93
|
|
|
throw new \Exception("pipe requires at least one argument"); |
|
94
|
|
|
} |
|
95
|
|
|
return function () use ($arguments) { |
|
96
|
|
|
$internalArguments = func_get_args(); |
|
97
|
|
|
$initialValue = call_user_func_array($arguments[0], $internalArguments); |
|
98
|
|
|
$accumulator = function ($acc, $it) { |
|
99
|
|
|
return call_user_func_array($it, [$acc]); |
|
100
|
|
|
}; |
|
101
|
|
|
return array_reduce(drop(0, $arguments), $accumulator, $initialValue); |
|
102
|
|
|
}; |
|
103
|
|
|
} |
|
104
|
|
|
|
aerophant /
ramda
