116 lines
3.0 KiB
PHP
116 lines
3.0 KiB
PHP
<?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\Classes;
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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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* Using `parent` inside a class without parent is deprecated since PHP 7.4.
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*
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* This will throw a compile-time error in the future. Currently an error will only
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* be generated if/when the parent is accessed at run-time.
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*
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* PHP version 7.4
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*
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* @link https://www.php.net/manual/en/migration74.deprecated.php#migration74.deprecated.core.parent
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*
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* @since 9.2.0
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*/
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class RemovedOrphanedParentSniff extends Sniff
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{
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/**
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* Class scopes to check the class declaration.
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*
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* @since 9.2.0
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*
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* @var array
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*/
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public $classScopeTokens = array(
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'T_CLASS' => true,
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'T_ANON_CLASS' => true,
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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 9.2.0
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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(\T_PARENT);
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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 9.2.0
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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
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* in the 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->supportsAbove('7.4') === false) {
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return;
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}
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$tokens = $phpcsFile->getTokens();
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if (empty($tokens[$stackPtr]['conditions']) === true) {
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// Use within the global namespace. Not our concern.
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return;
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}
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/*
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* Find the class within which this parent keyword is used.
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*/
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$conditions = $tokens[$stackPtr]['conditions'];
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$conditions = array_reverse($conditions, true);
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$classPtr = false;
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foreach ($conditions as $ptr => $type) {
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if (isset($this->classScopeTokens[$tokens[$ptr]['type']])) {
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$classPtr = $ptr;
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break;
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}
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}
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if ($classPtr === false) {
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// Use outside of a class scope. Not our concern.
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return;
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}
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if (isset($tokens[$classPtr]['scope_opener']) === false) {
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// No scope opener known. Probably a parse error.
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return;
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}
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$extends = $phpcsFile->findNext(\T_EXTENDS, ($classPtr + 1), $tokens[$classPtr]['scope_opener']);
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if ($extends !== false) {
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// Class has a parent.
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return;
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}
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$phpcsFile->addError(
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'Using "parent" inside a class without parent is deprecated since PHP 7.4',
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$stackPtr,
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'Deprecated'
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);
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}
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}
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