public function unpickle_stream(phpickle_stream $stream)
{
$reader = new phpickle_read_ops();
$stack = new phpickle_stack();
$memo = new phpickle_memo();
$ops = new phpickle_op_mapper();
if ($this->debug) {
echo "start unpickle \r\n";
}
while (!$stream->eof()) {
$byte = $stream->get_byte();
if ($this->debug) {
echo "read command as {$byte} (" . ord($byte) . ") \r\n";
}
$op_str = $ops->bin2str($byte);
if ($this->debug) {
echo "op_str = {$op_str} \r\n";
}
if ($op_str == "STOP") {
break;
}
$fn = "op_" . $op_str;
if ($this->debug) {
echo "calling {$fn} \r\n";
}
$reader->{$fn}($stream, $stack, $memo, $this->debug);
}
return $stack->pop();
}
public function gen_op_handlers(phpickle_stream $stream)
{
// go over file lines,
// skip starting with //
// skip empty
// handle starting with OP and -- read: and --write:
$read_ct = "";
$write_ct = "";
while (!$stream->eof()) {
$line = trim($stream->get_line());
if ($line == "") {
continue;
} else {
if (substr($line, 0, 2) == "//") {
continue;
} else {
if (substr($line, 0, 3) == "OP:") {
list($read, $write) = $this->_process_op($line, $stream);
$read_ct .= $read;
$write_ct .= $write;
} else {
throw "Unexpected line in op handlers! {$line}";
}
}
}
}
$read_ct = <<<EOD
class phpickle_read_ops
{
{$read_ct}
}
EOD;
$write_ct = <<<EOD
class phpickle_write_ops
{
{$write_ct}
}
EOD;
return array($read_ct, $write_ct);
}
