Patchwork\CodeManipulation\Source::read PHP Méthode

    function read($offset, $count = 1)
    {
        $result = '';
        $pos = $offset;
        while ($pos < $offset + $count) {
            if (isset($this->tokens[$pos][self::STRING_OFFSET])) {
                $result .= $this->tokens[$pos][self::STRING_OFFSET];
            } else {
                $result .= $this->tokens[$pos];
            }
            $pos++;
        }
        return $result;
    }

function spliceDynamicCallsWithin(Source $s, $first, $last)
{
    $pos = $first;
    $anchor = INF;
    $suppress = false;
    while ($pos <= $last) {
        switch ($s->tokens[$pos][Source::TYPE_OFFSET]) {
            case '$':
            case T_VARIABLE:
                $anchor = min($pos, $anchor);
                break;
            case Generic\LEFT_ROUND:
                if ($anchor !== INF && !$suppress) {
                    $callable = $s->read($anchor, $pos - $anchor);
                    $arguments = $s->read($pos + 1, $s->match($pos) - $pos - 1);
                    $pos = $s->match($pos);
                    $replacement = sprintf(DYNAMIC_CALL_REPLACEMENT, $callable, $arguments);
                    $s->splice($replacement, $anchor, $pos - $anchor + 1);
                }
                break;
            case Generic\LEFT_SQUARE:
            case Generic\LEFT_CURLY:
                spliceDynamicCallsWithin($s, $pos + 1, $s->match($pos) - 1);
                $pos = $s->match($pos);
                break;
            case T_WHITESPACE:
            case T_COMMENT:
            case T_DOC_COMMENT:
                break;
            case T_OBJECT_OPERATOR:
            case T_DOUBLE_COLON:
            case T_NEW:
                $suppress = true;
                break;
            default:
                $suppress = false;
                $anchor = INF;
        }
        $pos++;
    }
}