function OptimizedFunctionsWithoutUnpackingSniff::process

* @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint *

Parameters

int $pointer:

Overrides Sniff::process

File

vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/PHP/OptimizedFunctionsWithoutUnpackingSniff.php, line 39

Class

OptimizedFunctionsWithoutUnpackingSniff

Namespace

SlevomatCodingStandard\Sniffs\PHP

Code

public function process(File $phpcsFile, $pointer) : void {
    $previousTokenPointer = TokenHelper::findPreviousEffective($phpcsFile, $pointer - 1);
    $openBracketPointer = TokenHelper::findNextEffective($phpcsFile, $pointer + 1);
    $tokens = $phpcsFile->getTokens();
    if ($openBracketPointer === null || $tokens[$openBracketPointer]['code'] !== T_OPEN_PARENTHESIS) {
        return;
    }
    if (in_array($tokens[$previousTokenPointer]['code'], [
        T_FUNCTION,
        T_NEW,
        T_OBJECT_OPERATOR,
    ], true)) {
        return;
    }
    
    /** @var int $tokenBeforeInvocationPointer */
    $tokenBeforeInvocationPointer = TokenHelper::findPreviousExcluding($phpcsFile, TokenHelper::getNameTokenCodes(), $pointer);
    $invokedName = TokenHelper::getContent($phpcsFile, $tokenBeforeInvocationPointer + 1, $pointer);
    $useName = sprintf('function %s', $invokedName);
    $uses = UseStatementHelper::getUseStatementsForPointer($phpcsFile, $pointer);
    if ($invokedName[0] === '\\') {
        $invokedName = substr($invokedName, 1);
    }
    elseif (array_key_exists($useName, $uses) && $uses[$useName]->isFunction()) {
        $invokedName = $uses[$useName]->getFullyQualifiedTypeName();
    }
    elseif (NamespaceHelper::findCurrentNamespaceName($phpcsFile, $pointer) !== null) {
        return;
    }
    if (!in_array($invokedName, FunctionHelper::SPECIAL_FUNCTIONS, true)) {
        return;
    }
    $closeBracketPointer = $tokens[$openBracketPointer]['parenthesis_closer'];
    if (TokenHelper::findNextEffective($phpcsFile, $openBracketPointer + 1, $closeBracketPointer + 1) === $closeBracketPointer) {
        return;
    }
    $pointerBeforeCloseBracket = TokenHelper::findPreviousEffective($phpcsFile, $closeBracketPointer - 1);
    $startPointer = $tokens[$pointerBeforeCloseBracket]['code'] === T_COMMA ? $pointerBeforeCloseBracket : $closeBracketPointer;
    do {
        $lastArgumentSeparatorPointer = TokenHelper::findPrevious($phpcsFile, [
            T_COMMA,
        ], $startPointer - 1, $openBracketPointer);
        $startPointer = $lastArgumentSeparatorPointer;
    } while ($lastArgumentSeparatorPointer !== null && $tokens[$lastArgumentSeparatorPointer]['level'] !== $tokens[$openBracketPointer]['level']);
    if ($lastArgumentSeparatorPointer === null) {
        $lastArgumentSeparatorPointer = $openBracketPointer;
    }
    
    /** @var int $nextTokenAfterSeparatorPointer */
    $nextTokenAfterSeparatorPointer = TokenHelper::findNextEffective($phpcsFile, $lastArgumentSeparatorPointer + 1, $closeBracketPointer);
    if ($tokens[$nextTokenAfterSeparatorPointer]['code'] !== T_ELLIPSIS) {
        return;
    }
    if (TokenHelper::findNextEffective($phpcsFile, $nextTokenAfterSeparatorPointer + 1) === $closeBracketPointer) {
        // First class callables
        return;
    }
    $phpcsFile->addError(sprintf('Function %s is specialized by PHP and should not use argument unpacking.', $invokedName), $nextTokenAfterSeparatorPointer, self::CODE_UNPACKING_USED);
}