|
1
|
|
|
<?php |
|
2
|
|
|
/****************************************************************************** |
|
3
|
|
|
* An implementation of dicto (scg.unibe.ch/dicto) in and for PHP. |
|
4
|
|
|
* |
|
5
|
|
|
* Copyright (c) 2016, 2015 Richard Klees <[email protected]> |
|
6
|
|
|
* |
|
7
|
|
|
* This software is licensed under The MIT License. You should have received |
|
8
|
|
|
* a copy of the license along with the code. |
|
9
|
|
|
*/ |
|
10
|
|
|
|
|
11
|
|
|
namespace Lechimp\Dicto\Variables; |
|
12
|
|
|
|
|
13
|
|
|
use Lechimp\Dicto\Graph\Node; |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* A variable with a certain property. |
|
17
|
|
|
*/ |
|
18
|
|
|
class WithProperty extends Variable { |
|
19
|
|
|
/** |
|
20
|
|
|
* @var Variable |
|
21
|
|
|
*/ |
|
22
|
|
|
private $other; |
|
23
|
|
|
|
|
24
|
|
|
/** |
|
25
|
|
|
* @var Property |
|
26
|
|
|
*/ |
|
27
|
|
|
private $property; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* @var array |
|
31
|
|
|
*/ |
|
32
|
|
|
private $arguments; |
|
33
|
|
|
|
|
34
|
29 |
|
public function __construct(Variable $other, Property $property, array $arguments) { |
|
35
|
29 |
|
parent::__construct(); |
|
36
|
29 |
|
assert('$property->arguments_are_valid($arguments)'); |
|
37
|
29 |
|
$this->other = $other; |
|
38
|
29 |
|
$this->property = $property; |
|
39
|
29 |
|
$this->arguments = $arguments; |
|
40
|
29 |
|
} |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* @return Variable |
|
44
|
|
|
*/ |
|
45
|
14 |
|
public function variable() { |
|
46
|
14 |
|
return $this->other; |
|
47
|
|
|
} |
|
48
|
|
|
|
|
49
|
|
|
/** |
|
50
|
|
|
* @inheritdocs |
|
51
|
|
|
*/ |
|
52
|
14 |
|
public function meaning() { |
|
53
|
14 |
|
return $this->variable()->meaning()." ".$this->property->parse_as().": ".$this->argument_list(); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
14 |
|
protected function argument_list() { |
|
57
|
14 |
|
$args = array(); |
|
58
|
14 |
|
foreach ($this->arguments as $argument) { |
|
59
|
14 |
|
if (is_string($argument)) { |
|
60
|
12 |
|
$args[] = "\"$argument\""; |
|
61
|
12 |
|
} |
|
62
|
2 |
|
else if ($argument instanceof Variable) { |
|
63
|
2 |
|
$name = $argument->name(); |
|
64
|
2 |
|
if ($name !== null) { |
|
65
|
2 |
|
$args[] = $name; |
|
66
|
2 |
|
} |
|
67
|
|
|
else { |
|
68
|
|
|
$args[] = "(".$argument->meaning().")"; |
|
69
|
|
|
} |
|
70
|
2 |
|
} |
|
71
|
|
|
else { |
|
72
|
|
|
throw new \LogicException("Unknown arg type: ".gettype($argument)); |
|
73
|
|
|
} |
|
74
|
14 |
|
} |
|
75
|
14 |
|
return implode(", ", $args); |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* @inheritdocs |
|
80
|
|
|
*/ |
|
81
|
23 |
|
public function compile() { |
|
82
|
23 |
|
$left_condition = $this->other->compile(); |
|
83
|
23 |
|
$property_condition = $this->property->compile($this->arguments); |
|
84
|
|
|
|
|
85
|
23 |
|
return function(Node $n) use ($left_condition, $property_condition) { |
|
86
|
23 |
|
return $left_condition($n) |
|
87
|
23 |
|
&& $property_condition($n); |
|
88
|
23 |
|
}; |
|
89
|
|
|
} |
|
90
|
|
|
} |
|
91
|
|
|
|
lechimp-p /
dicto.php
