|
1
|
|
|
<?php |
|
2
|
|
|
/****************************************************************************** |
|
3
|
|
|
* An implementation of dicto (scg.unibe.ch/dicto) in and for PHP. |
|
4
|
|
|
* |
|
5
|
|
|
* Copyright (c) 2016 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\Rules; |
|
12
|
|
|
|
|
13
|
|
|
use Lechimp\Dicto\Analysis\Index; |
|
14
|
|
|
use Lechimp\Dicto\Definition\ArgumentParser; |
|
15
|
|
|
use Lechimp\Dicto\Indexer\Insert; |
|
16
|
|
|
use Lechimp\Dicto\Indexer\Location; |
|
17
|
|
|
use Lechimp\Dicto\Variables\Variable; |
|
18
|
|
|
use Lechimp\Dicto\Graph\Node; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* This is a rule that checks a relation between two entities |
|
22
|
|
|
* in the code. |
|
23
|
|
|
*/ |
|
24
|
|
|
abstract class Relation extends Schema { |
|
25
|
|
|
/** |
|
26
|
|
|
* @inheritdoc |
|
27
|
|
|
*/ |
|
28
|
4 |
|
public function fetch_arguments(ArgumentParser $parser) { |
|
29
|
4 |
|
$var = $parser->fetch_variable(); |
|
30
|
4 |
|
return array($var); |
|
31
|
|
|
} |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* @inheritdoc |
|
35
|
|
|
*/ |
|
36
|
37 |
|
public function arguments_are_valid(array &$arguments) { |
|
37
|
37 |
|
if (count($arguments) != 1) { |
|
38
|
|
|
return false; |
|
39
|
|
|
} |
|
40
|
37 |
|
if (!($arguments[0] instanceof Variable)) { |
|
41
|
|
|
return false; |
|
42
|
|
|
} |
|
43
|
37 |
|
return true; |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
/** |
|
47
|
|
|
* @inheritdoc |
|
48
|
|
|
*/ |
|
49
|
29 |
|
public function pprint(Rule $rule) { |
|
50
|
29 |
|
return $this->name()." ".$rule->argument(0)->name(); |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
/** |
|
54
|
|
|
* @inheritdoc |
|
55
|
|
|
*/ |
|
56
|
17 |
|
public function compile(Index $index, Rule $rule) { |
|
57
|
17 |
|
$mode = $rule->mode(); |
|
58
|
17 |
|
$var_left = $rule->checked_on(); |
|
59
|
17 |
|
$var_right = $rule->argument(0); |
|
60
|
17 |
|
$query = $index->query(); |
|
61
|
17 |
|
$predicate_factory = $query->predicate_factory(); |
|
62
|
17 |
|
if ($mode == Rule::MODE_CANNOT || $mode == Rule::MODE_ONLY_CAN) { |
|
63
|
11 |
|
$filter_left = $var_left->compile($predicate_factory); |
|
64
|
11 |
|
$filter_right = $var_right->compile($predicate_factory); |
|
65
|
|
|
return [$query |
|
66
|
11 |
|
->filter($filter_left) |
|
|
|
|
|
|
67
|
11 |
|
->expand_relations([$this->name()]) |
|
68
|
|
View Code Duplication |
->extract(function($e,&$r) use ($rule) { |
|
|
|
|
|
|
69
|
6 |
|
$file = $e->property("file"); |
|
70
|
6 |
|
assert('$file->type() == "file"'); |
|
71
|
6 |
|
$r["file"] = $file->property("path"); |
|
72
|
6 |
|
$line = $e->property("line"); |
|
73
|
6 |
|
$r["line"] = $line; |
|
74
|
6 |
|
$r["source"] = $file->property("source")[$line - 1]; |
|
75
|
11 |
|
}) |
|
76
|
11 |
|
->expand_target() |
|
77
|
11 |
|
->filter($filter_right)] |
|
78
|
11 |
|
; |
|
79
|
|
|
} |
|
80
|
6 |
|
if ($mode == Rule::MODE_MUST) { |
|
81
|
6 |
|
$filter_left = $var_left->compile($predicate_factory); |
|
82
|
6 |
|
$filter_right = $var_right->compile($predicate_factory)->compile(); |
|
83
|
|
|
return [$query |
|
84
|
6 |
|
->filter($filter_left) |
|
|
|
|
|
|
85
|
|
|
->filter($predicate_factory->_custom(function(Node $n) use ($filter_right) { |
|
86
|
|
|
$rels = $n->relations(function($r) { |
|
87
|
6 |
|
return $r->type() == $this->name(); |
|
88
|
6 |
|
}); |
|
89
|
6 |
|
if (count($rels) == 0) { |
|
90
|
|
|
return true; |
|
91
|
|
|
} |
|
92
|
6 |
|
foreach ($rels as $rel) { |
|
93
|
6 |
|
if ($filter_right($rel->target())) { |
|
94
|
3 |
|
return false; |
|
95
|
|
|
} |
|
96
|
4 |
|
} |
|
97
|
3 |
|
return true; |
|
98
|
6 |
|
})) |
|
99
|
|
|
->extract(function($e,&$r) use ($index, $rule) { |
|
100
|
3 |
|
$rels = $e->relations(function($r) { |
|
101
|
3 |
|
return $r->type() == "defined in"; |
|
102
|
3 |
|
}); |
|
103
|
3 |
|
assert('count($rels) == 1'); |
|
104
|
3 |
|
$file = $rels[0]->target(); |
|
105
|
3 |
|
assert('$file->type() == "file"'); |
|
106
|
3 |
|
$r["file"] = $file->property("path"); |
|
107
|
3 |
|
$line = $rels[0]->property("start_line"); |
|
108
|
3 |
|
$r["line"] = $line; |
|
109
|
3 |
|
$r["source"] = $file->property("source")[$line - 1]; |
|
110
|
6 |
|
})] |
|
111
|
6 |
|
; |
|
112
|
|
|
} |
|
113
|
|
|
throw new \LogicException("Unknown rule mode: '$mode'"); |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
|
|
/** |
|
117
|
|
|
* Insert this relation somewhere, where it is recorded for all |
|
118
|
|
|
* entities that the current location is in. |
|
119
|
|
|
* |
|
120
|
|
|
* @param Insert $insert |
|
121
|
|
|
* @param Location $location |
|
122
|
|
|
* @param mixed $other |
|
123
|
|
|
* @return null |
|
124
|
|
|
*/ |
|
125
|
23 |
|
protected function insert_relation_into(Insert $insert, Location $location, $other) { |
|
126
|
23 |
|
foreach ($location->in_entities() as $entity) { |
|
127
|
23 |
|
if ($entity[0] == Variable::FILE_TYPE) { |
|
128
|
23 |
|
continue; |
|
129
|
|
|
} |
|
130
|
23 |
|
$insert->_relation |
|
131
|
23 |
|
( $entity[1] |
|
132
|
23 |
|
, $this->name() |
|
133
|
23 |
|
, $other |
|
134
|
23 |
|
, $location->file() |
|
135
|
23 |
|
, $location->line() |
|
136
|
23 |
|
); |
|
137
|
23 |
|
} |
|
138
|
23 |
|
} |
|
139
|
|
|
} |
|
140
|
|
|
|
lechimp-p /
dicto.php
Loading history...
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: