function AssignThisSniff::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/MySource/Sniffs/Objects/AssignThisSniff.php, line 49

Class

AssignThisSniff

Namespace

PHP_CodeSniffer\Standards\MySource\Sniffs\Objects

Code

public function process(File $phpcsFile, $stackPtr) {
    $tokens = $phpcsFile->getTokens();
    // Ignore this.something and other uses of "this" that are not
    // direct assignments.
    $next = $phpcsFile->findNext(T_WHITESPACE, $stackPtr + 1, null, true);
    if ($tokens[$next]['code'] !== T_SEMICOLON) {
        if ($tokens[$next]['line'] === $tokens[$stackPtr]['line']) {
            return;
        }
    }
    // Something must be assigned to "this".
    $prev = $phpcsFile->findPrevious(T_WHITESPACE, $stackPtr - 1, null, true);
    if ($tokens[$prev]['code'] !== T_EQUAL) {
        return;
    }
    // A variable needs to be assigned to "this".
    $prev = $phpcsFile->findPrevious(T_WHITESPACE, $prev - 1, null, true);
    if ($tokens[$prev]['code'] !== T_STRING) {
        return;
    }
    // We can only assign "this" to a var called "self".
    if ($tokens[$prev]['content'] !== 'self' && $tokens[$prev]['content'] !== '_self') {
        $error = 'Keyword "this" can only be assigned to a variable called "self" or "_self"';
        $phpcsFile->addError($error, $prev, 'NotSelf');
    }
}