File "ObjectInstantiationSniff.php"
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Charset: utf-8
<?php
/**
* Ensures objects are assigned to a variable when instantiated.
*
* @author Greg Sherwood <gsherwood@squiz.net>
* @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
*/
namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\Objects;
use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
use PHP_CodeSniffer\Util\Tokens;
class ObjectInstantiationSniff implements Sniff
{
/**
* Registers the token types that this sniff wishes to listen to.
*
* @return array
*/
public function register()
{
return [T_NEW];
}//end register()
/**
* Process the tokens that this sniff is listening for.
*
* @param \PHP_CodeSniffer\Files\File $phpcsFile The file where the token was found.
* @param int $stackPtr The position in the stack where
* the token was found.
*
* @return void
*/
public function process(File $phpcsFile, $stackPtr)
{
$tokens = $phpcsFile->getTokens();
$allowedTokens = Tokens::$emptyTokens;
$allowedTokens[] = T_BITWISE_AND;
$prev = $phpcsFile->findPrevious($allowedTokens, ($stackPtr - 1), null, true);
$allowedTokens = [
T_EQUAL => T_EQUAL,
T_COALESCE_EQUAL => T_COALESCE_EQUAL,
T_DOUBLE_ARROW => T_DOUBLE_ARROW,
T_FN_ARROW => T_FN_ARROW,
T_MATCH_ARROW => T_MATCH_ARROW,
T_THROW => T_THROW,
T_RETURN => T_RETURN,
];
if (isset($allowedTokens[$tokens[$prev]['code']]) === true) {
return;
}
$ternaryLikeTokens = [
T_COALESCE => true,
T_INLINE_THEN => true,
T_INLINE_ELSE => true,
];
// For ternary like tokens, walk a little further back to see if it is preceded by
// one of the allowed tokens (within the same statement).
if (isset($ternaryLikeTokens[$tokens[$prev]['code']]) === true) {
$hasAllowedBefore = $phpcsFile->findPrevious($allowedTokens, ($prev - 1), null, false, null, true);
if ($hasAllowedBefore !== false) {
return;
}
}
$error = 'New objects must be assigned to a variable';
$phpcsFile->addError($error, $stackPtr, 'NotAssigned');
}//end process()
}//end class