|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* PHPCompatibility_Sniffs_PHP_NewUseConstFunctionSniff. |
|
4
|
|
|
* |
|
5
|
|
|
* PHP version 5.6 |
|
6
|
|
|
* |
|
7
|
|
|
* @category PHP |
|
8
|
|
|
* @package PHPCompatibility |
|
9
|
|
|
* @author Juliette Reinders Folmer <[email protected]> |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
/** |
|
13
|
|
|
* PHPCompatibility_Sniffs_PHP_NewUseConstFunctionSniff. |
|
14
|
|
|
* |
|
15
|
|
|
* The use operator has been extended to support importing functions and |
|
16
|
|
|
* constants in addition to classes. This is achieved via the use function |
|
17
|
|
|
* and use const constructs, respectively. |
|
18
|
|
|
* |
|
19
|
|
|
* PHP version 5.6 |
|
20
|
|
|
* |
|
21
|
|
|
* @category PHP |
|
22
|
|
|
* @package PHPCompatibility |
|
23
|
|
|
* @author Juliette Reinders Folmer <[email protected]> |
|
24
|
|
|
*/ |
|
25
|
|
|
class PHPCompatibility_Sniffs_PHP_NewUseConstFunctionSniff extends PHPCompatibility_Sniff |
|
|
|
|
|
|
26
|
|
|
{ |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* A list of keywords that can follow use statements. |
|
30
|
|
|
* |
|
31
|
|
|
* @var array(string => string) |
|
32
|
|
|
*/ |
|
33
|
|
|
protected $validUseNames = array( |
|
34
|
|
|
'const' => true, |
|
35
|
|
|
'function' => true, |
|
36
|
|
|
); |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* Returns an array of tokens this test wants to listen for. |
|
40
|
|
|
* |
|
41
|
|
|
* @return array |
|
42
|
|
|
*/ |
|
43
|
|
|
public function register() |
|
44
|
|
|
{ |
|
45
|
|
|
return array(T_USE); |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
|
|
49
|
|
|
/** |
|
50
|
|
|
* Processes this test, when one of its tokens is encountered. |
|
51
|
|
|
* |
|
52
|
|
|
* @param PHP_CodeSniffer_File $phpcsFile The file being scanned. |
|
53
|
|
|
* @param int $stackPtr The position of the current token in the |
|
54
|
|
|
* stack passed in $tokens. |
|
55
|
|
|
* |
|
56
|
|
|
* @return void |
|
57
|
|
|
*/ |
|
58
|
|
|
public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr) |
|
59
|
|
|
{ |
|
60
|
|
|
if ($this->supportsBelow('5.5') !== true) { |
|
61
|
|
|
return; |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
$tokens = $phpcsFile->getTokens(); |
|
65
|
|
|
|
|
66
|
|
|
$nextNonEmpty = $phpcsFile->findNext(PHP_CodeSniffer_Tokens::$emptyTokens, ($stackPtr + 1), null, true); |
|
67
|
|
|
if ($nextNonEmpty === false) { |
|
68
|
|
|
// Live coding. |
|
69
|
|
|
return; |
|
70
|
|
|
} |
|
71
|
|
|
|
|
72
|
|
|
if (isset($this->validUseNames[strtolower($tokens[$nextNonEmpty]['content'])]) === false) { |
|
73
|
|
|
// Not a `use const` or `use function` statement. |
|
74
|
|
|
return; |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
// `use const` and `use function` have to be followed by the function/constant name. |
|
78
|
|
|
$functionOrConstName = $phpcsFile->findNext(PHP_CodeSniffer_Tokens::$emptyTokens, ($nextNonEmpty + 1), null, true); |
|
79
|
|
|
if ($functionOrConstName === false |
|
80
|
|
|
// Identifies as T_AS or T_STRING, this covers both. |
|
81
|
|
|
|| ($tokens[$functionOrConstName]['content'] === 'as' |
|
82
|
|
|
|| $tokens[$functionOrConstName]['code'] === T_COMMA) |
|
83
|
|
|
) { |
|
84
|
|
|
// Live coding or incorrect use of reserved keyword, but that is |
|
85
|
|
|
// covered by the ForbiddenNames sniff. |
|
86
|
|
|
return; |
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
|
|
// Still here ? In that case we have encountered a `use const` or `use function` statement. |
|
90
|
|
|
$phpcsFile->addError( |
|
91
|
|
|
'Importing functions and constants through a "use" statement is not supported in PHP 5.5 or lower.', |
|
92
|
|
|
$nextNonEmpty, |
|
93
|
|
|
'Found' |
|
94
|
|
|
); |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
} |
|
98
|
|
|
|
wimg /
PHPCompatibility
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.