Patchwork\CodeManipulation\Source::is PHP Method

    function is($types, $offset)
    {
        foreach ((array) $types as $type) {
            if ($this->tokens[$offset][self::TYPE_OFFSET] === $type) {
                return true;
            }
        }
        return false;
    }

function spliceNamedCallsWithin(Source $s, $begin, $end, array $names, array $aliases)
{
    foreach ($s->within(T_STRING, $begin, $end) as $string) {
        $original = strtolower($s->read($string));
        if (isset($names[$original]) || isset($aliases[$original])) {
            $previous = $s->skipBack(Source::junk(), $string);
            $hadBackslash = false;
            if ($s->is(T_NS_SEPARATOR, $previous)) {
                if (!isset($names[$original])) {
                    # use-aliased name cannot have a leading backslash
                    continue;
                }
                $s->splice('', $previous, 1);
                $previous = $s->skipBack(Source::junk(), $previous);
                $hadBackslash = true;
            }
            if ($s->is([T_FUNCTION, T_OBJECT_OPERATOR, T_DOUBLE_COLON, T_STRING, T_NEW], $previous)) {
                continue;
            }
            $next = $s->skip(Source::junk(), $string);
            if (!$s->is(Generic\LEFT_ROUND, $next)) {
                continue;
            }
            if (isset($aliases[$original])) {
                $original = $aliases[$original];
            }
            $secondNext = $s->skip(Source::junk(), $next);
            $splice = '\\' . CallRerouting\INTERNAL_REDEFINITION_NAMESPACE . '\\';
            $splice .= $original . Generic\LEFT_ROUND;
            # prepend a namespace-of-origin argument to handle cases like Acme\time() vs time()
            $splice .= !$hadBackslash ? '__NAMESPACE__' : '""';
            if (!$s->is(Generic\RIGHT_ROUND, $secondNext)) {
                # right parenthesis doesn't follow immediately => there are arguments
                $splice .= ', ';
            }
            $s->splice($splice, $string, $secondNext - $string);
        }
    }
}