|
1
|
|
|
<?php declare(strict_types=1); |
|
2
|
|
|
|
|
3
|
|
|
namespace DaveRandom\Jom; |
|
4
|
|
|
|
|
5
|
|
|
use DaveRandom\Jom\Exceptions\InvalidReferenceNodeException; |
|
6
|
|
|
use DaveRandom\Jom\Exceptions\InvalidSubjectNodeException; |
|
7
|
|
|
|
|
8
|
|
|
/** @noinspection PhpInconsistentReturnPointsInspection */ |
|
9
|
|
|
|
|
10
|
|
|
final class PointerGenerator |
|
11
|
|
|
{ |
|
12
|
|
|
/** |
|
13
|
|
|
* @var Node |
|
14
|
|
|
*/ |
|
15
|
|
|
private $root; |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* @var Node|null |
|
19
|
|
|
*/ |
|
20
|
|
|
private $rootParent; |
|
21
|
|
|
|
|
22
|
|
|
/** |
|
23
|
|
|
* @var Document |
|
24
|
|
|
*/ |
|
25
|
|
|
private $ownerDocument; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* Create an array of the node's path to root in reverse order, including the root node |
|
29
|
|
|
* |
|
30
|
|
|
* @return Node[] |
|
31
|
|
|
*/ |
|
32
|
11 |
|
private function getNodePath(Node $node): array |
|
33
|
|
|
{ |
|
34
|
11 |
|
$path = []; |
|
35
|
|
|
|
|
36
|
|
|
do { |
|
37
|
11 |
|
$path[] = $node; |
|
38
|
11 |
|
$node = $node->getParent(); |
|
39
|
11 |
|
} while ($node !== $this->rootParent && $node !== null); |
|
40
|
|
|
|
|
41
|
11 |
|
return $path; |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* @param Node[] $nodePath |
|
46
|
|
|
* @return string[] |
|
47
|
|
|
*/ |
|
48
|
11 |
|
private function nodePathToPointerPath(array $nodePath): array |
|
49
|
|
|
{ |
|
50
|
11 |
|
$result = []; |
|
51
|
|
|
|
|
52
|
11 |
|
for ($i = \count($nodePath) - 1; $i >= 0; $i--) { |
|
53
|
7 |
|
$result[] = $nodePath[$i]->getKey(); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
11 |
|
return $result; |
|
57
|
|
|
} |
|
58
|
|
|
|
|
59
|
|
|
/** |
|
60
|
|
|
* @throws InvalidSubjectNodeException |
|
61
|
|
|
* @throws InvalidReferenceNodeException |
|
62
|
|
|
*/ |
|
63
|
11 |
|
private function validateAndRemoveNodePathRoots(array &$targetPath, array &$basePath = null): void |
|
64
|
|
|
{ |
|
65
|
11 |
|
if (\array_pop($targetPath) !== $this->root) { |
|
66
|
|
|
throw new InvalidSubjectNodeException('Target node for pointer is not a child of the generator root node'); |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
11 |
|
if ($basePath !== null && \array_pop($basePath) !== $this->root) { |
|
70
|
|
|
throw new InvalidReferenceNodeException('Base node for pointer is not a child of the generator root node'); |
|
71
|
|
|
} |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* @param Node|Document $root |
|
76
|
|
|
* @throws InvalidReferenceNodeException |
|
77
|
|
|
*/ |
|
78
|
14 |
|
public function __construct($root) |
|
79
|
|
|
{ |
|
80
|
14 |
|
if ($root instanceof Document) { |
|
81
|
1 |
|
$root = $root->getRootNode(); |
|
82
|
|
|
} |
|
83
|
|
|
|
|
84
|
14 |
|
if (!($root instanceof Node)) { |
|
|
|
|
|
|
85
|
1 |
|
throw new InvalidReferenceNodeException( |
|
86
|
1 |
|
'Pointer generator root node must be instance of ' . Node::class . ' or ' . Document::class |
|
87
|
|
|
); |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
13 |
|
$this->root = $root; |
|
91
|
13 |
|
$this->rootParent = $root->getParent(); |
|
92
|
13 |
|
$this->ownerDocument = $root->getOwnerDocument(); |
|
93
|
|
|
} |
|
94
|
|
|
|
|
95
|
2 |
|
public function getRootNode(): Node |
|
96
|
|
|
{ |
|
97
|
2 |
|
return $this->root; |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
/** |
|
101
|
|
|
* @throws InvalidSubjectNodeException |
|
102
|
|
|
*/ |
|
103
|
4 |
|
public function generateAbsolutePointer(Node $target): Pointer |
|
104
|
|
|
{ |
|
105
|
|
|
try { |
|
106
|
4 |
|
$targetPath = self::getNodePath($target); |
|
|
|
|
|
|
107
|
|
|
|
|
108
|
4 |
|
$this->validateAndRemoveNodePathRoots($targetPath); |
|
109
|
|
|
|
|
110
|
4 |
|
return Pointer::createFromParameters($this->nodePathToPointerPath($targetPath)); |
|
111
|
|
|
} catch (InvalidSubjectNodeException $e) { |
|
112
|
|
|
throw $e; |
|
113
|
|
|
//@codeCoverageIgnoreStart |
|
114
|
|
|
} catch (\Exception $e) { |
|
115
|
|
|
throw unexpected($e); |
|
116
|
|
|
} |
|
117
|
|
|
//@codeCoverageIgnoreEnd |
|
118
|
|
|
} |
|
119
|
|
|
|
|
120
|
|
|
/** |
|
121
|
|
|
* @throws InvalidSubjectNodeException |
|
122
|
|
|
* @throws InvalidReferenceNodeException |
|
123
|
|
|
*/ |
|
124
|
7 |
|
public function generateRelativePointer(Node $target, Node $base): Pointer |
|
125
|
|
|
{ |
|
126
|
7 |
|
$targetPath = self::getNodePath($target); |
|
|
|
|
|
|
127
|
7 |
|
$basePath = self::getNodePath($base); |
|
128
|
|
|
|
|
129
|
7 |
|
$this->validateAndRemoveNodePathRoots($targetPath, $basePath); |
|
130
|
|
|
|
|
131
|
7 |
|
while (!empty($targetPath) && \end($targetPath) === \end($basePath)) { |
|
132
|
2 |
|
\array_pop($targetPath); |
|
133
|
2 |
|
\array_pop($basePath); |
|
134
|
|
|
} |
|
135
|
|
|
|
|
136
|
|
|
try { |
|
137
|
7 |
|
return Pointer::createFromParameters($this->nodePathToPointerPath($targetPath), \count($basePath)); |
|
138
|
|
|
//@codeCoverageIgnoreStart |
|
139
|
|
|
} catch (\Exception $e) { |
|
140
|
|
|
throw unexpected($e); |
|
141
|
|
|
} |
|
142
|
|
|
//@codeCoverageIgnoreEnd |
|
143
|
|
|
} |
|
144
|
|
|
} |
|
145
|
|
|
|
DaveRandom /
JOM
Loading history...