Latte\PhpWriter::inOperatorPass PHP Method

    public function inOperatorPass(MacroTokens $tokens)
    {
        while ($tokens->nextToken()) {
            if ($tokens->isCurrent($tokens::T_VARIABLE)) {
                $start = $tokens->position;
                $depth = $tokens->depth;
                $expr = $arr = [];
                $expr[] = $tokens->currentToken();
                while ($tokens->isNext($tokens::T_VARIABLE, $tokens::T_SYMBOL, $tokens::T_NUMBER, $tokens::T_STRING, '[', ']', '(', ')', '->') && !$tokens->isNext('in')) {
                    $expr[] = $tokens->nextToken();
                }
                if ($depth === $tokens->depth && $tokens->nextValue('in') && ($arr[] = $tokens->nextToken('['))) {
                    while ($tokens->isNext()) {
                        $arr[] = $tokens->nextToken();
                        if ($tokens->isCurrent(']') && $tokens->depth === $depth) {
                            $new = array_merge($tokens->parse('in_array('), $expr, $tokens->parse(', '), $arr, $tokens->parse(', TRUE)'));
                            array_splice($tokens->tokens, $start, $tokens->position - $start + 1, $new);
                            $tokens->position = $start + count($new) - 1;
                            continue 2;
                        }
                    }
                }
                $tokens->position = $start;
            }
        }
        return $tokens->reset();
    }