|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace PeacefulBit\Slate\Core\Modules\Relation; |
|
4
|
|
|
|
|
5
|
|
|
use function Nerd\Common\Arrays\toHeadTail; |
|
6
|
|
|
use PeacefulBit\Slate\Exceptions\EvaluatorException; |
|
7
|
|
|
use PeacefulBit\Slate\Parser\Nodes\NativeExpression; |
|
8
|
|
|
|
|
9
|
|
|
function relationReduce($eval, $callback, array $arguments) |
|
10
|
|
|
{ |
|
11
|
|
|
if (empty($arguments)) { |
|
12
|
|
|
throw new EvaluatorException("Too few arguments"); |
|
13
|
|
|
} |
|
14
|
|
|
$iter = function ($rest, $first) use (&$iter, $callback, $eval) { |
|
15
|
|
|
if (empty($rest)) { |
|
16
|
|
|
return true; |
|
17
|
|
|
} |
|
18
|
|
|
list ($head, $tail) = toHeadTail($rest); |
|
19
|
|
|
$visitedHead = $eval($head); |
|
20
|
|
|
if ($callback($first, $visitedHead)) { |
|
21
|
|
|
return $iter($tail, $visitedHead); |
|
22
|
|
|
} |
|
23
|
|
|
return false; |
|
24
|
|
|
}; |
|
25
|
|
|
list ($head, $tail) = toHeadTail($arguments); |
|
26
|
|
|
return $iter($tail, $eval($head)); |
|
27
|
|
|
} |
|
28
|
|
|
|
|
29
|
|
|
function export() |
|
30
|
|
|
{ |
|
31
|
|
|
return [ |
|
32
|
|
|
'@' => [ |
|
33
|
|
|
'>' => new NativeExpression(function ($eval, array $arguments) { |
|
34
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
35
|
|
|
return $first > $second; |
|
36
|
|
|
}, $arguments); |
|
37
|
|
|
}), |
|
38
|
|
|
'<' => new NativeExpression(function ($eval, array $arguments) { |
|
39
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
40
|
|
|
return $first < $second; |
|
41
|
|
|
}, $arguments); |
|
42
|
|
|
}), |
|
43
|
|
|
'>=' => new NativeExpression(function ($eval, array $arguments) { |
|
44
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
45
|
|
|
return $first >= $second; |
|
46
|
|
|
}, $arguments); |
|
47
|
|
|
}), |
|
48
|
|
|
'<=' => new NativeExpression(function ($eval, array $arguments) { |
|
49
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
50
|
|
|
return $first <= $second; |
|
51
|
|
|
}, $arguments); |
|
52
|
|
|
}), |
|
53
|
|
|
'=' => new NativeExpression(function ($eval, array $arguments) { |
|
54
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
55
|
|
|
return $first == $second; |
|
56
|
|
|
}, $arguments); |
|
57
|
|
|
}), |
|
58
|
|
|
'==' => new NativeExpression(function ($eval, array $arguments) { |
|
59
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
60
|
|
|
return $first === $second; |
|
61
|
|
|
}, $arguments); |
|
62
|
|
|
}), |
|
63
|
|
|
'!=' => new NativeExpression(function ($eval, array $arguments) { |
|
64
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
65
|
|
|
return $first != $second; |
|
66
|
|
|
}, $arguments); |
|
67
|
|
|
}), |
|
68
|
|
|
'!==' => new NativeExpression(function ($eval, array $arguments) { |
|
69
|
|
|
return relationReduce($eval, function ($first, $second) { |
|
70
|
|
|
return $first !== $second; |
|
71
|
|
|
}, $arguments); |
|
72
|
|
|
}) |
|
73
|
|
|
] |
|
74
|
|
|
]; |
|
75
|
|
|
} |
|
76
|
|
|
|
peacefulbit /
packet-lite
