77 lines
2.1 KiB
PHP
77 lines
2.1 KiB
PHP
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<?php
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/**
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* PHPCompatibility, an external standard for PHP_CodeSniffer.
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*
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* @package PHPCompatibility
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* @copyright 2012-2019 PHPCompatibility Contributors
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* @license https://opensource.org/licenses/LGPL-3.0 LGPL3
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* @link https://github.com/PHPCompatibility/PHPCompatibility
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*/
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namespace PHPCompatibility\Sniffs\Keywords;
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use PHPCompatibility\Sniff;
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use PHP_CodeSniffer_File as File;
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/**
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* Detect usage of `self`, `parent` and `static` and verify they are lowercase.
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*
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* Prior to PHP 5.5, cases existed where the `self`, `parent`, and `static` keywords
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* were treated in a case sensitive fashion.
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*
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* PHP version 5.5
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*
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* @link https://www.php.net/manual/en/migration55.incompatible.php#migration55.incompatible.self-parent-static
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*
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* @since 7.1.4
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*/
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class CaseSensitiveKeywordsSniff extends Sniff
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{
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/**
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* Returns an array of tokens this test wants to listen for.
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*
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* @since 7.1.4
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*
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* @return array
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*/
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public function register()
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{
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return array(
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\T_SELF,
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\T_STATIC,
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\T_PARENT,
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);
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}
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/**
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* Processes this test, when one of its tokens is encountered.
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*
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* @since 7.1.4
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*
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* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
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* @param int $stackPtr The position of the current token in the
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* stack passed in $tokens.
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*
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* @return void
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*/
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public function process(File $phpcsFile, $stackPtr)
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{
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if ($this->supportsBelow('5.4') === false) {
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return;
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}
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$tokens = $phpcsFile->getTokens();
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$tokenContentLC = strtolower($tokens[$stackPtr]['content']);
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if ($tokenContentLC !== $tokens[$stackPtr]['content']) {
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$phpcsFile->addError(
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'The keyword \'%s\' was treated in a case-sensitive fashion in certain cases in PHP 5.4 or earlier. Use the lowercase version for consistent support.',
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$stackPtr,
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'NonLowercaseFound',
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array($tokenContentLC)
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);
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}
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}
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}
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