function ForLoopShouldBeWhileLoopSniff::process

Processes this test, when one of its tokens is encountered.

Parameters

\PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.:

int $stackPtr The position of the current token: in the stack passed in $tokens.

Return value

void

Overrides Sniff::process

File

vendor/squizlabs/php_codesniffer/src/Standards/Generic/Sniffs/CodeAnalysis/ForLoopShouldBeWhileLoopSniff.php, line 54

Class

ForLoopShouldBeWhileLoopSniff

Namespace

PHP_CodeSniffer\Standards\Generic\Sniffs\CodeAnalysis

Code

public function process(File $phpcsFile, $stackPtr) {
    $tokens = $phpcsFile->getTokens();
    $token = $tokens[$stackPtr];
    // Skip invalid statement.
    if (isset($token['parenthesis_opener'], $token['parenthesis_closer']) === false) {
        return;
    }
    $next = ++$token['parenthesis_opener'];
    $end = --$token['parenthesis_closer'];
    $parts = [
        0,
        0,
        0,
    ];
    $index = 0;
    for (; $next <= $end; ++$next) {
        $code = $tokens[$next]['code'];
        if ($code === T_SEMICOLON) {
            ++$index;
        }
        else {
            if (isset(Tokens::$emptyTokens[$code]) === false) {
                ++$parts[$index];
            }
        }
    }
    if ($parts[0] === 0 && $parts[2] === 0 && $parts[1] > 0) {
        $error = 'This FOR loop can be simplified to a WHILE loop';
        $phpcsFile->addWarning($error, $stackPtr, 'CanSimplify');
    }
}