117 lines
3.3 KiB
PHP
117 lines
3.3 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\ControlStructures;
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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 using `break` and/or `continue` statements outside of a looping structure.
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*
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* PHP version 7.0
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*
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* @link https://www.php.net/manual/en/migration70.incompatible.php#migration70.incompatible.other.break-continue
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* @link https://www.php.net/manual/en/control-structures.break.php
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* @link https://www.php.net/manual/en/control-structures.continue.php
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*
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* @since 7.0.7
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*/
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class ForbiddenBreakContinueOutsideLoopSniff extends Sniff
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{
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/**
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* Token codes of control structure in which usage of break/continue is valid.
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*
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* @since 7.0.7
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*
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* @var array
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*/
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protected $validLoopStructures = array(
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\T_FOR => true,
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\T_FOREACH => true,
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\T_WHILE => true,
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\T_DO => true,
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\T_SWITCH => true,
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);
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/**
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* Token codes which did not correctly get a condition assigned in older PHPCS versions.
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*
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* @since 7.0.7
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*
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* @var array
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*/
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protected $backCompat = array(
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\T_CASE => true,
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\T_DEFAULT => 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 7.0.7
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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_BREAK,
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\T_CONTINUE,
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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 7.0.7
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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, $stackPtr)
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{
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$tokens = $phpcsFile->getTokens();
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$token = $tokens[$stackPtr];
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// Check if the break/continue is within a valid loop structure.
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if (empty($token['conditions']) === false) {
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foreach ($token['conditions'] as $tokenCode) {
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if (isset($this->validLoopStructures[$tokenCode]) === true) {
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return;
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}
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}
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} else {
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// Deal with older PHPCS versions.
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if (isset($token['scope_condition']) === true && isset($this->backCompat[$tokens[$token['scope_condition']]['code']]) === true) {
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return;
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}
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}
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// If we're still here, no valid loop structure container has been found, so throw an error.
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$error = "Using '%s' outside of a loop or switch structure is invalid";
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$isError = false;
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$errorCode = 'Found';
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$data = array($token['content']);
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if ($this->supportsAbove('7.0')) {
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$error .= ' and will throw a fatal error since PHP 7.0';
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$isError = true;
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$errorCode = 'FatalError';
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}
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$this->addMessage($phpcsFile, $error, $stackPtr, $isError, $errorCode, $data);
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}
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}
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