|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
namespace Marcosh\PhpValidationDSL; |
|
6
|
|
|
|
|
7
|
|
|
use Closure; |
|
8
|
|
|
use ReflectionFunction; |
|
9
|
|
|
|
|
10
|
|
|
/** |
|
11
|
|
|
* implementation heavily inspired by https://github.com/m4rw3r/autoCurry |
|
12
|
|
|
* |
|
13
|
|
|
* @param callable $f with signature ($a1, $a2, ...) -> $something |
|
14
|
|
|
* @return Closure with signature $a1 -> ($a2 -> (... -> $something)) |
|
15
|
|
|
* |
|
16
|
|
|
* @psalm-return Closure(): callable |
|
17
|
|
|
*/ |
|
18
|
|
|
function curry(callable $f): Closure |
|
19
|
|
|
{ |
|
20
|
|
|
$innerCurry = |
|
21
|
|
|
/** |
|
22
|
|
|
* @return Closure |
|
23
|
|
|
* |
|
24
|
|
|
* @psalm-return Closure(): callable |
|
25
|
|
|
*/ |
|
26
|
|
|
static function ( |
|
27
|
|
|
callable $f, |
|
28
|
|
|
?int $numberOfParameters = null, |
|
29
|
|
|
array $parameters = [] |
|
30
|
|
|
) use (&$innerCurry) : Closure { |
|
31
|
|
|
if (null === $numberOfParameters) { |
|
32
|
|
|
// retrieve number of parameters from reflection |
|
33
|
|
|
$fClosure = Closure::fromCallable($f); |
|
34
|
|
|
$fRef = new ReflectionFunction($fClosure); |
|
35
|
|
|
$numberOfParameters = $fRef->getNumberOfParameters(); |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
/** @psalm-suppress MissingClosureReturnType */ |
|
39
|
|
|
return static function () use ($f, $numberOfParameters, $parameters, $innerCurry) { |
|
40
|
|
|
/** @var array<int, mixed> $newParameters */ |
|
41
|
|
|
$newParameters = array_merge($parameters, func_get_args()); |
|
42
|
|
|
|
|
43
|
|
|
if (count($newParameters) >= $numberOfParameters) { |
|
44
|
|
|
return call_user_func_array($f, $newParameters); |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
|
|
return $innerCurry($f, $numberOfParameters, $newParameters); |
|
48
|
|
|
}; |
|
49
|
|
|
}; |
|
50
|
|
|
|
|
51
|
|
|
return $innerCurry($f); |
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
/** |
|
55
|
|
|
* @param callable $f with signature $a1 -> ($a2 -> (... -> $something)) |
|
56
|
|
|
* @return Closure with signature ($a1, $a2, ...) -> $something |
|
57
|
|
|
* |
|
58
|
|
|
* @psalm-return Closure(... array<int, mixed>): mixed |
|
59
|
|
|
*/ |
|
60
|
|
|
function uncurry(callable $f): Closure |
|
61
|
|
|
{ |
|
62
|
|
|
/** |
|
63
|
|
|
* @psalm-suppress MissingClosureParamType |
|
64
|
|
|
* @psalm-suppress MissingClosureReturnType |
|
65
|
|
|
*/ |
|
66
|
|
|
return static function (...$params) use ($f) { |
|
67
|
|
|
if ([] === $params) { |
|
68
|
|
|
return $f(); |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
$firstParam = $params[0]; |
|
72
|
|
|
|
|
73
|
|
|
$firstApplication = $f($firstParam); |
|
74
|
|
|
|
|
75
|
|
|
if (! is_callable($firstApplication)) { |
|
76
|
|
|
return $firstApplication; |
|
77
|
|
|
} |
|
78
|
|
|
|
|
79
|
|
|
return uncurry($firstApplication)(...array_slice($params, 1)); |
|
80
|
|
|
}; |
|
81
|
|
|
} |
|
82
|
|
|
|
marcosh /
php-validation-dsl
