1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
<?php
/*
* This file is part of PHP CS Fixer.
*
* (c) Fabien Potencier <fabien@symfony.com>
* Dariusz Rumiński <dariusz.ruminski@gmail.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace PhpCsFixer\Fixer\Casing;
use PhpCsFixer\AbstractFixer;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\Tokenizer\CT;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @author SpacePossum
*/
final class NativeFunctionCasingFixer extends AbstractFixer
{
/**
* {@inheritdoc}
*/
public function getDefinition()
{
return new FixerDefinition(
'Function defined by PHP should be called using the correct casing.',
[new CodeSample("<?php\nSTRLEN(\$str);\n")]
);
}
/**
* {@inheritdoc}
*/
public function isCandidate(Tokens $tokens)
{
return $tokens->isTokenKindFound(T_STRING);
}
/**
* {@inheritdoc}
*/
protected function applyFix(\SplFileInfo $file, Tokens $tokens)
{
static $nativeFunctionNames = null;
if (null === $nativeFunctionNames) {
$nativeFunctionNames = $this->getNativeFunctionNames();
}
for ($index = 0, $count = $tokens->count(); $index < $count; ++$index) {
// test if we are at a function all
if (!$tokens[$index]->isGivenKind(T_STRING)) {
continue;
}
$next = $tokens->getNextMeaningfulToken($index);
if (!$tokens[$next]->equals('(')) {
$index = $next;
continue;
}
$functionNamePrefix = $tokens->getPrevMeaningfulToken($index);
if ($tokens[$functionNamePrefix]->isGivenKind([T_DOUBLE_COLON, T_NEW, T_OBJECT_OPERATOR, T_FUNCTION, CT::T_RETURN_REF])) {
continue;
}
if ($tokens[$functionNamePrefix]->isGivenKind(T_NS_SEPARATOR)) {
// skip if the call is to a constructor or to a function in a namespace other than the default
$prev = $tokens->getPrevMeaningfulToken($functionNamePrefix);
if ($tokens[$prev]->isGivenKind([T_STRING, T_NEW])) {
continue;
}
}
// test if the function call is to a native PHP function
$lower = strtolower($tokens[$index]->getContent());
if (!array_key_exists($lower, $nativeFunctionNames)) {
continue;
}
$tokens[$index] = new Token([T_STRING, $nativeFunctionNames[$lower]]);
$index = $next;
}
}
/**
* @return array<string, string>
*/
private function getNativeFunctionNames()
{
$allFunctions = get_defined_functions();
$functions = [];
foreach ($allFunctions['internal'] as $function) {
$functions[strtolower($function)] = $function;
}
return $functions;
}
}