|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types = 1); |
|
3
|
|
|
/* |
|
4
|
|
|
* Go! AOP framework |
|
5
|
|
|
* |
|
6
|
|
|
* @copyright Copyright 2017, Lisachenko Alexander <[email protected]> |
|
7
|
|
|
* |
|
8
|
|
|
* This source file is subject to the license that is bundled |
|
9
|
|
|
* with this source code in the file LICENSE. |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
namespace Go\Instrument\Transformer; |
|
13
|
|
|
|
|
14
|
|
|
use PhpParser\Node; |
|
15
|
|
|
use PhpParser\NodeVisitorAbstract; |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* Node finder visitor for compatibility with PHP-Parser < 4.0 |
|
19
|
|
|
*/ |
|
20
|
|
|
class NodeFinderVisitor extends NodeVisitorAbstract |
|
21
|
|
|
{ |
|
22
|
|
|
/** |
|
23
|
|
|
* List of node class names to search |
|
24
|
|
|
* |
|
25
|
|
|
* @var string[] |
|
26
|
|
|
*/ |
|
27
|
|
|
protected $searchNodes; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* List of found nodes |
|
31
|
|
|
* |
|
32
|
|
|
* @var Node[] Found nodes |
|
33
|
|
|
*/ |
|
34
|
|
|
protected $foundNodes; |
|
35
|
|
|
|
|
36
|
|
|
/** |
|
37
|
|
|
* @param array $searchNodes List of node names to search in AST |
|
38
|
|
|
*/ |
|
39
|
25 |
|
public function __construct(array $searchNodes) |
|
40
|
|
|
{ |
|
41
|
25 |
|
$this->searchNodes = $searchNodes; |
|
42
|
25 |
|
} |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* Get found nodes. |
|
46
|
|
|
* |
|
47
|
|
|
* Nodes are returned in pre-order. |
|
48
|
|
|
* |
|
49
|
|
|
* @return Node[] Found nodes |
|
50
|
|
|
*/ |
|
51
|
25 |
|
public function getFoundNodes(): array |
|
52
|
|
|
{ |
|
53
|
25 |
|
return $this->foundNodes; |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
/** |
|
57
|
|
|
* Called once before traversal. |
|
58
|
|
|
* |
|
59
|
|
|
* Return value semantics: |
|
60
|
|
|
* * null: $nodes stays as-is |
|
61
|
|
|
* * otherwise: $nodes is set to the return value |
|
62
|
|
|
* |
|
63
|
|
|
* @param Node[] $nodes Array of nodes |
|
64
|
|
|
* |
|
65
|
|
|
* @return null|Node[] Array of nodes |
|
66
|
|
|
*/ |
|
67
|
25 |
|
public function beforeTraverse(array $nodes) |
|
68
|
|
|
{ |
|
69
|
25 |
|
$this->foundNodes = []; |
|
70
|
|
|
|
|
71
|
25 |
|
return null; |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* Called when entering a node. |
|
76
|
|
|
* |
|
77
|
|
|
* Return value semantics: |
|
78
|
|
|
* * null |
|
79
|
|
|
* => $node stays as-is |
|
80
|
|
|
* * NodeTraverser::DONT_TRAVERSE_CHILDREN |
|
81
|
|
|
* => Children of $node are not traversed. $node stays as-is |
|
82
|
|
|
* * NodeTraverser::STOP_TRAVERSAL |
|
83
|
|
|
* => Traversal is aborted. $node stays as-is |
|
84
|
|
|
* * otherwise |
|
85
|
|
|
* => $node is set to the return value |
|
86
|
|
|
* |
|
87
|
|
|
* @param Node $node Node |
|
88
|
|
|
* |
|
89
|
|
|
* @return null|int|Node Node |
|
90
|
|
|
*/ |
|
91
|
25 |
|
public function enterNode(Node $node) |
|
92
|
|
|
{ |
|
93
|
25 |
|
foreach ($this->searchNodes as $nodeClassName) { |
|
94
|
25 |
|
if ($node instanceof $nodeClassName) { |
|
95
|
25 |
|
$this->foundNodes[] = $node; |
|
96
|
|
|
} |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
25 |
|
return null; |
|
100
|
|
|
} |
|
101
|
|
|
} |
|
102
|
|
|
|
goaop /
framework
