src/Fixer/ClassNotation/FinalInternalClassFixer.php
protected function applyFix(\SplFileInfo $file, Tokens $tokens)
    {
        for ($index = $tokens->count() - 1; 0 <= $index; --$index) {
            if (!$tokens[$index]->isGivenKind(T_CLASS) || !$this->isClassCandidate($tokens, $index)) {
                continue;
            }

            // make class final
            $tokens->insertAt(
                $index,
                [
                    new Token([T_FINAL, 'final']),
                    new Token([T_WHITESPACE, ' ']),
                ]
            );
        }
    }
protected function applyFix(\SplFileInfo $file, Tokens $tokens)
    {
        for ($index = $tokens->count() - 1; 0 <= $index; --$index) {
            if (!$tokens[$index]->isGivenKind(T_CLASS) || !$this->isClassCandidate($tokens, $index)) {
                continue;
            }

            // make class final
            $tokens->insertAt(
                $index,
                [
                    new Token([T_FINAL, 'final']),
                    new Token([T_WHITESPACE, ' ']),
                ]
            );
        }
    }
{@inheritdoc}