code: protected function applyFix(\SplFileInfo $file, Tokens $tokens)
      {
          // Checks if specific statements are set and uses them in this case.
          $loops = array_intersect_key(self::$loops, array_flip($this->configuration['statements']));
  
          foreach ($tokens as $index => $token) {
              if (!$token->equalsAny(['(', [CT::T_BRACE_CLASS_INSTANTIATION_OPEN]])) {
                  continue;
              }
  
              $blockStartIndex = $index;
              $index = $tokens->getPrevMeaningfulToken($index);
              $prevToken = $tokens[$index];
  
              foreach ($loops as $loop) {
                  if (!$prevToken->isGivenKind($loop['lookupTokens'])) {
                      continue;
                  }
  
                  $blockEndIndex = $tokens->findBlockEnd(
                      $token->equals('(') ? Tokens::BLOCK_TYPE_PARENTHESIS_BRACE : Tokens::BLOCK_TYPE_BRACE_CLASS_INSTANTIATION,
                      $blockStartIndex
                  );
                  $blockEndNextIndex = $tokens->getNextMeaningfulToken($blockEndIndex);
  
                  if (!$tokens[$blockEndNextIndex]->equalsAny($loop['neededSuccessors'])) {
                      continue;
                  }
  
                  if (\array_key_exists('forbiddenContents', $loop)) {
                      $forbiddenTokenIndex = $tokens->getNextTokenOfKind($blockStartIndex, $loop['forbiddenContents']);
                      // A forbidden token is found and is inside the parenthesis.
                      if (null !== $forbiddenTokenIndex && $forbiddenTokenIndex < $blockEndIndex) {
                          continue;
                      }
                  }
  
                  if ($tokens[$blockStartIndex - 1]->isWhitespace() || $tokens[$blockStartIndex - 1]->isComment()) {
                      $tokens->clearTokenAndMergeSurroundingWhitespace($blockStartIndex);
                  } else {
                      // Adds a space to prevent broken code like `return2`.
                      $tokens[$blockStartIndex] = new Token([T_WHITESPACE, ' ']);
                  }
  
                  $tokens->clearTokenAndMergeSurroundingWhitespace($blockEndIndex);
              }
          }
      }
docs: {@inheritdoc}