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XCache is a fast, stable PHP opcode cacher that has been proven and is now running on production servers under high load. https://xcache.lighttpd.net/
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xcache/Decompiler.class.php

2074 lines
50 KiB

<?php
define('INDENT', "\t");
ini_set('error_reporting', E_ALL);
function color($str, $color = 33)
{
return "\x1B[{$color}m$str\x1B[0m";
}
function str($code, $indent = '') // {{{
{
if (is_array($code)) {
$array = array();
foreach ($code as $key => $value) {
$array[$key] = str($value, $indent);
}
return $array;
}
if (is_object($code)) {
$code = foldToCode($code, $indent);
return $code->toCode($indent);
}
return (string) $code;
}
// }}}
function foldToCode($src, $indent = '') // {{{ wrap or rewrap anything to Decompiler_Code
{
if (is_array($indent)) {
$indent = $indent['indent'];
}
if (!is_object($src)) {
return new Decompiler_Code($src);
}
if (!method_exists($src, 'toCode')) {
var_dump($src);
exit('no toCode');
}
if (get_class($src) != 'Decompiler_Code') {
// rewrap it
$src = new Decompiler_Code($src->toCode($indent));
}
return $src;
}
// }}}
function value($value) // {{{
{
$spec = xcache_get_special_value($value);
if (isset($spec)) {
$value = $spec;
if (!is_array($value)) {
// constant
return $value;
}
}
if (is_a($value, 'Decompiler_Object')) {
// use as is
}
else if (is_array($value)) {
$value = new Decompiler_ConstArray($value);
}
else {
$value = new Decompiler_Value($value);
}
return $value;
}
// }}}
class Decompiler_Object // {{{
{
}
// }}}
class Decompiler_Value extends Decompiler_Object // {{{
{
var $value;
function Decompiler_Value($value = null)
{
$this->value = $value;
}
function toCode($indent)
{
return var_export($this->value, true);
}
}
// }}}
class Decompiler_Code extends Decompiler_Object // {{{
{
var $src;
function Decompiler_Code($src)
{
assert('isset($src)');
$this->src = $src;
}
function toCode($indent)
{
return $this->src;
}
}
// }}}
class Decompiler_Binop extends Decompiler_Code // {{{
{
var $opc;
var $op1;
var $op2;
var $parent;
var $indent;
function Decompiler_Binop($parent, $op1, $opc, $op2)
{
$this->parent = &$parent;
$this->opc = $opc;
$this->op1 = $op1;
$this->op2 = $op2;
}
function toCode($indent)
{
$op1 = foldToCode($this->op1, $indent);
if (is_a($this->op1, 'Decompiler_Binop') && $this->op1->opc != $this->opc) {
$op1 = "($op1)";
}
$opstr = $this->parent->binops[$this->opc];
if ($op1 == '0' && $this->opc == XC_SUB) {
return $opstr . str($this->op2, $indent);
}
return $op1 . ' ' . $opstr . ' ' . foldToCodfoldToCode($this->op2, $indent);
}
}
// }}}
class Decompiler_Fetch extends Decompiler_Code // {{{
{
var $src;
var $fetchType;
function Decompiler_Fetch($src, $type, $globalsrc)
{
$this->src = $src;
$this->fetchType = $type;
$this->globalsrc = $globalsrc;
}
function toCode($indent)
{
switch ($this->fetchType) {
case ZEND_FETCH_LOCAL:
return '$' . substr($this->src, 1, -1);
case ZEND_FETCH_STATIC:
die('static fetch cant to string');
case ZEND_FETCH_GLOBAL:
case ZEND_FETCH_GLOBAL_LOCK:
return $this->globalsrc;
default:
var_dump($this->fetchType);
assert(0);
}
}
}
// }}}
class Decompiler_Box // {{{
{
var $obj;
function Decompiler_Box(&$obj)
{
$this->obj = &$obj;
}
function toCode($indent)
{
return $this->obj->toCode($indent);
}
}
// }}}
class Decompiler_Dim extends Decompiler_Value // {{{
{
var $offsets = array();
var $isLast = false;
var $assign = null;
function toCode($indent)
{
if (is_a($this->value, 'Decompiler_ListBox')) {
$exp = foldToCode($this->value->obj->src, $indent);
}
else {
$exp = foldToCode($this->value, $indent);
}
foreach ($this->offsets as $dim) {
$exp .= '[' . foldToCode($dim, $indent) . ']';
}
return $exp;
}
}
// }}}
class Decompiler_DimBox extends Decompiler_Box // {{{
{
}
// }}}
class Decompiler_List extends Decompiler_Code // {{{
{
var $src;
var $dims = array();
var $everLocked = false;
function toCode($indent)
{
if (count($this->dims) == 1 && !$this->everLocked) {
$dim = $this->dims[0];
unset($dim->value);
$dim->value = $this->src;
if (!isset($dim->assign)) {
return foldToCode($dim, $indent);
}
return foldToCode($this->dims[0]->assign, $indent) . ' = ' . foldToCode($dim, $indent);
}
/* flatten dims */
$assigns = array();
foreach ($this->dims as $dim) {
$assign = &$assigns;
foreach ($dim->offsets as $offset) {
$assign = &$assign[$offset];
}
$assign = foldToCode($dim->assign, $indent);
}
return $this->toList($assigns) . ' = ' . foldToCode($this->src, $indent);
}
function toList($assigns)
{
$keys = array_keys($assigns);
if (count($keys) < 2) {
$keys[] = 0;
}
$max = call_user_func_array('max', $keys);
$list = 'list(';
for ($i = 0; $i <= $max; $i ++) {
if ($i) {
$list .= ', ';
}
if (!isset($assigns[$i])) {
continue;
}
if (is_array($assigns[$i])) {
$list .= $this->toList($assigns[$i]);
}
else {
$list .= $assigns[$i];
}
}
return $list . ')';
}
}
// }}}
class Decompiler_ListBox extends Decompiler_Box // {{{
{
}
// }}}
class Decompiler_Array extends Decompiler_Value // {{{
{
// emenets
function Decompiler_Array()
{
$this->value = array();
}
function toCode($indent)
{
$subindent = $indent . INDENT;
$elementsCode = array();
$index = 0;
foreach ($this->value as $element) {
list($key, $value) = $element;
if (!isset($key)) {
$key = $index++;
}
$elementsCode[] = array(str($key, $subindent), str($value, $subindent), $key, $value);
}
$exp = "array(";
$indent = $indent . INDENT;
$assocWidth = 0;
$multiline = 0;
$i = 0;
foreach ($elementsCode as $element) {
list($keyCode, $valueCode) = $element;
if ((string) $i !== $keyCode) {
$assocWidth = 1;
break;
}
++$i;
}
foreach ($elementsCode as $element) {
list($keyCode, $valueCode, $key, $value) = $element;
if ($assocWidth) {
$len = strlen($keyCode);
if ($assocWidth < $len) {
$assocWidth = $len;
}
}
if (is_array($value) || is_a($value, 'Decompiler_Array')) {
$multiline ++;
}
}
$i = 0;
foreach ($elementsCode as $element) {
list($keyCode, $value) = $element;
if ($multiline) {
if ($i) {
$exp .= ",";
}
$exp .= "\n";
$exp .= $indent;
}
else {
if ($i) {
$exp .= ", ";
}
}
if ($assocWidth) {
if ($multiline) {
$exp .= sprintf("%-{$assocWidth}s => ", $keyCode);
}
else {
$exp .= $keyCode . ' => ';
}
}
$exp .= $value;
$i ++;
}
if ($multiline) {
$exp .= "\n$indent)";
}
else {
$exp .= ")";
}
return $exp;
}
}
// }}}
class Decompiler_ConstArray extends Decompiler_Array // {{{
{
function Decompiler_ConstArray($array)
{
$elements = array();
foreach ($array as $key => $value) {
$elements[] = array(value($key), value($value));
}
$this->value = $elements;
}
}
// }}}
class Decompiler_ForeachBox extends Decompiler_Box // {{{
{
var $iskey;
function toCode($indent)
{
return 'foreach (' . '';
}
}
// }}}
class Decompiler
{
var $rName = '!^[\\w_][\\w\\d_]*$!';
var $rQuotedName = "!^'[\\w_][\\w\\d_]*'\$!";
function Decompiler()
{
// {{{ opinfo
$this->unaryops = array(
XC_BW_NOT => '~',
XC_BOOL_NOT => '!',
);
$this->binops = array(
XC_ADD => "+",
XC_ASSIGN_ADD => "+=",
XC_SUB => "-",
XC_ASSIGN_SUB => "-=",
XC_MUL => "*",
XC_ASSIGN_MUL => "*=",
XC_DIV => "/",
XC_ASSIGN_DIV => "/=",
XC_MOD => "%",
XC_ASSIGN_MOD => "%=",
XC_SL => "<<",
XC_ASSIGN_SL => "<<=",
XC_SR => ">>",
XC_ASSIGN_SR => ">>=",
XC_CONCAT => ".",
XC_ASSIGN_CONCAT => ".=",
XC_IS_IDENTICAL => "===",
XC_IS_NOT_IDENTICAL => "!==",
XC_IS_EQUAL => "==",
XC_IS_NOT_EQUAL => "!=",
XC_IS_SMALLER => "<",
XC_IS_SMALLER_OR_EQUAL => "<=",
XC_BW_OR => "|",
XC_ASSIGN_BW_OR => "|=",
XC_BW_AND => "&",
XC_ASSIGN_BW_AND => "&=",
XC_BW_XOR => "^",
XC_ASSIGN_BW_XOR => "^=",
XC_BOOL_XOR => "xor",
);
// }}}
$this->includeTypes = array( // {{{
ZEND_EVAL => 'eval',
ZEND_INCLUDE => 'include',
ZEND_INCLUDE_ONCE => 'include_once',
ZEND_REQUIRE => 'require',
ZEND_REQUIRE_ONCE => 'require_once',
);
// }}}
}
function outputPhp(&$opcodes, $opline, $last, $indent) // {{{
{
$origindent = $indent;
$curticks = 0;
for ($i = $opline; $i <= $last; $i ++) {
$op = $opcodes[$i];
if (isset($op['php'])) {
$toticks = isset($op['ticks']) ? $op['ticks'] : 0;
if ($curticks != $toticks) {
if (!$toticks) {
echo $origindent, "}\n";
$indent = $origindent;
}
else {
if ($curticks) {
echo $origindent, "}\n";
}
else if (!$curticks) {
$indent .= INDENT;
}
echo $origindent, "declare(ticks=$curticks) {\n";
}
$curticks = $toticks;
}
echo $indent, str($op['php'], $indent), ";\n";
}
}
if ($curticks) {
echo $origindent, "}\n";
}
}
// }}}
function getOpVal($op, &$EX, $tostr = true, $free = false) // {{{
{
switch ($op['op_type']) {
case XC_IS_CONST:
return foldToCode(value($op['constant']), $EX);
case XC_IS_VAR:
case XC_IS_TMP_VAR:
$T = &$EX['Ts'];
$ret = $T[$op['var']];
if ($tostr) {
$ret = foldToCode($ret, $EX);
}
if ($free) {
unset($T[$op['var']]);
}
return $ret;
case XC_IS_CV:
$var = $op['var'];
$var = $EX['op_array']['vars'][$var];
return '$' . $var['name'];
case XC_IS_UNUSED:
return null;
}
}
// }}}
function removeKeyPrefix($array, $prefix) // {{{
{
$prefixLen = strlen($prefix);
$ret = array();
foreach ($array as $key => $value) {
if (substr($key, 0, $prefixLen) == $prefix) {
$key = substr($key, $prefixLen);
}
$ret[$key] = $value;
}
return $ret;
}
// }}}
function &fixOpcode($opcodes, $removeTailing = false, $defaultReturnValue = null) // {{{
{
for ($i = 0, $cnt = count($opcodes); $i < $cnt; $i ++) {
if (function_exists('xcache_get_fixed_opcode')) {
$opcodes[$i]['opcode'] = xcache_get_fixed_opcode($opcodes[$i]['opcode'], $i);
}
if (isset($opcodes[$i]['op1'])) {
$opcodes[$i]['op1'] = $this->removeKeyPrefix($opcodes[$i]['op1'], 'u.');
$opcodes[$i]['op2'] = $this->removeKeyPrefix($opcodes[$i]['op2'], 'u.');
$opcodes[$i]['result'] = $this->removeKeyPrefix($opcodes[$i]['result'], 'u.');
}
else {
$op = array(
'op1' => array(),
'op2' => array(),
'op3' => array(),
);
foreach ($opcodes[$i] as $name => $value) {
if (preg_match('!^(op1|op2|result)\\.(.*)!', $name, $m)) {
list(, $which, $field) = $m;
$op[$which][$field] = $value;
}
else if (preg_match('!^(op1|op2|result)_type$!', $name, $m)) {
list(, $which) = $m;
$op[$which]['op_type'] = $value;
}
else {
$op[$name] = $value;
}
}
$opcodes[$i] = $op;
}
}
if ($removeTailing) {
$last = count($opcodes) - 1;
if ($opcodes[$last]['opcode'] == XC_HANDLE_EXCEPTION) {
unset($opcodes[$last]);
--$last;
}
if ($opcodes[$last]['opcode'] == XC_RETURN) {
$op1 = $opcodes[$last]['op1'];
if ($op1['op_type'] == XC_IS_CONST && array_key_exists('constant', $op1) && $op1['constant'] === $defaultReturnValue) {
unset($opcodes[$last]);
--$last;
}
}
}
return $opcodes;
}
// }}}
function &dop_array($op_array, $indent = '') // {{{
{
$op_array['opcodes'] = $this->fixOpcode($op_array['opcodes'], true, $indent == '' ? 1 : null);
$opcodes = &$op_array['opcodes'];
$EX['indent'] = '';
// {{{ build jmp array
for ($i = 0, $cnt = count($opcodes); $i < $cnt; $i ++) {
$op = &$opcodes[$i];
/*
if ($op['opcode'] == XC_JMPZ) {
$this->dumpop($op, $EX);
var_dump($op);
}
continue;
*/
$op['line'] = $i;
switch ($op['opcode']) {
case XC_JMP:
$target = $op['op1']['var'];
$op['jmpouts'] = array($target);
$opcodes[$target]['jmpins'][] = $i;
break;
case XC_JMPZNZ:
$jmpz = $op['op2']['opline_num'];
$jmpnz = $op['extended_value'];
$op['jmpouts'] = array($jmpz, $jmpnz);
$opcodes[$jmpz]['jmpins'][] = $i;
$opcodes[$jmpnz]['jmpins'][] = $i;
break;
case XC_JMPZ:
case XC_JMPNZ:
case XC_JMPZ_EX:
case XC_JMPNZ_EX:
// case XC_FE_RESET:
case XC_FE_FETCH:
// case XC_JMP_NO_CTOR:
$target = $op['op2']['opline_num'];
//if (!isset($target)) {
// $this->dumpop($op, $EX);
// var_dump($op); exit;
//}
$op['jmpouts'] = array($target);
$opcodes[$target]['jmpins'][] = $i;
break;
/*
case XC_RETURN:
$op['jmpouts'] = array();
break;
*/
}
}
unset($op);
// }}}
// build semi-basic blocks
$nextbbs = array();
$starti = 0;
for ($i = 1, $cnt = count($opcodes); $i < $cnt; $i ++) {
if (isset($opcodes[$i]['jmpins'])
|| isset($opcodes[$i - 1]['jmpouts'])) {
$nextbbs[$starti] = $i;
$starti = $i;
}
}
$nextbbs[$starti] = $cnt;
$EX = array();
$EX['Ts'] = array();
$EX['indent'] = $indent;
$EX['nextbbs'] = $nextbbs;
$EX['op_array'] = &$op_array;
$EX['opcodes'] = &$opcodes;
// func call
$EX['object'] = null;
$EX['called_scope'] = null;
$EX['fbc'] = null;
$EX['argstack'] = array();
$EX['arg_types_stack'] = array();
$EX['last'] = count($opcodes) - 1;
$EX['silence'] = 0;
for ($next = 0, $last = $EX['last'];
$loop = $this->outputCode($EX, $next, $last, $indent, true);
list($next, $last) = $loop) {
// empty
}
return $EX;
}
// }}}
function outputCode(&$EX, $opline, $last, $indent, $loop = false) // {{{
{
$op = &$EX['opcodes'][$opline];
$next = $EX['nextbbs'][$opline];
$end = $next - 1;
if ($end > $last) {
$end = $last;
}
if (isset($op['jmpins'])) {
echo "\nline", $op['line'], ":\n";
}
else {
// echo ";;;\n";
}
$this->dasmBasicBlock($EX, $opline, $end);
$this->outputPhp($EX['opcodes'], $opline, $end, $indent);
// jmpout op
$op = &$EX['opcodes'][$end];
$op1 = $op['op1'];
$op2 = $op['op2'];
$ext = $op['extended_value'];
$line = $op['line'];
if (isset($EX['opcodes'][$next])) {
if (isset($last) && $next > $last) {
$next = null;
}
}
else {
$next = null;
}
if ($op['opcode'] == XC_FE_FETCH) {
$opline = $next;
$next = $op['op2']['opline_num'];
$end = $next - 1;
ob_start();
$this->outputCode($EX, $opline, $end /* - 1 skip last jmp */, $indent . INDENT);
$body = ob_get_clean();
$as = foldToCode($op['fe_as'], $EX);
if (isset($op['fe_key'])) {
$as = str($op['fe_key'], $EX) . ' => ' . str($as);
}
echo "{$indent}foreach (" . str($op['fe_src'], $EX) . " as $as) {\n";
echo $body;
echo "{$indent}}";
// $this->outputCode($EX, $next, $last, $indent);
// return;
}
/*
if ($op['opcode'] == XC_JMPZ) {
$target = $op2['opline_num'];
if ($line + 1) {
$nextblock = $EX['nextbbs'][$next];
$jmpop = end($nextblock);
if ($jmpop['opcode'] == XC_JMP) {
$ifendline = $op2['opline_num'];
if ($ifendline >= $line) {
$cond = $op['cond'];
echo "{$indent}if ($cond) {\n";
$this->outputCode($EX, $next, $last, INDENT . $indent);
echo "$indent}\n";
$this->outputCode($EX, $target, $last, $indent);
return;
}
}
}
}
*/
if (!isset($next)) {
return;
}
if (!empty($op['jmpouts']) && isset($op['isjmp'])) {
if (isset($op['cond'])) {
echo "{$indent}check ($op[cond]) {\n";
echo INDENT;
}
echo $indent;
echo xcache_get_opcode($op['opcode']), ' line', $op['jmpouts'][0];
if (isset($op['jmpouts'][1])) {
echo ', line', $op['jmpouts'][1];
}
echo ";";
// echo ' // <- line', $op['line'];
echo "\n";
if (isset($op['cond'])) echo "$indent}\n";
}
// proces JMPZ_EX/JMPNZ_EX for AND,OR
$op = &$EX['opcodes'][$next];
/*
if (isset($op['jmpins'])) {
foreach (array_reverse($op['jmpins']) as $fromline) {
$fromop = $EX['opcodes'][$fromline];
switch ($fromop['opcode']) {
case XC_JMPZ_EX: $opstr = 'and'; break;
case XC_JMPNZ_EX: $opstr = 'or'; break;
case XC_JMPZNZ: var_dump($fromop); exit;
default: continue 2;
}
$var = $fromop['result']['var'];
var_dump($EX['Ts'][$var]);
$EX['Ts'][$var] = '(' . $fromop['and_or'] . " $opstr " . $EX['Ts'][$var] . ')';
}
#$this->outputCode($EX, $next, $last, $indent);
#return;
}
*/
if (isset($op['cond_false'])) {
// $this->dumpop($op, $EX);
// any true comes here, so it's a "or"
$cond = implode(' and ', str($op['cond_false']));
// var_dump($op['cond'] = $cond);
/*
$rvalue = implode(' or ', $op['cond_true']) . ' or ' . $rvalue;
unset($op['cond_true']);
*/
}
if ($loop) {
return array($next, $last);
}
$this->outputCode($EX, $next, $last, $indent);
}
// }}}
function unquoteName($str) // {{{
{
$str = str($str);
if (preg_match($this->rQuotedName, $str)) {
$str = substr($str, 1, -1);
}
return $str;
}
// }}}
function dasmBasicBlock(&$EX, $opline, $last) // {{{
{
$T = &$EX['Ts'];
$opcodes = &$EX['opcodes'];
$lastphpop = null;
for ($i = $opline, $ic = $last + 1; $i < $ic; $i ++) {
// {{{ prepair
$op = &$opcodes[$i];
$opc = $op['opcode'];
if ($opc == XC_NOP) {
continue;
}
$op1 = $op['op1'];
$op2 = $op['op2'];
$res = $op['result'];
$ext = $op['extended_value'];
$opname = xcache_get_opcode($opc);
if ($opname == 'UNDEF' || !isset($opname)) {
echo 'UNDEF OP:';
$this->dumpop($op, $EX);
continue;
}
// $this->dumpop($op, $EX); //var_dump($op);
$resvar = null;
if ((ZEND_ENGINE_2_4 ? ($res['op_type'] & EXT_TYPE_UNUSED) : ($res['EA.type'] & EXT_TYPE_UNUSED)) || $res['op_type'] == XC_IS_UNUSED) {
$istmpres = false;
}
else {
$istmpres = true;
}
// }}}
// echo $opname, "\n";
$call = array(&$this, $opname);
if (is_callable($call)) {
$this->{$opname}($op, $EX);
}
else if (isset($this->binops[$opc])) { // {{{
$op1val = $this->getOpVal($op1, $EX, false);
$op2val = $this->getOpVal($op2, $EX, false);
$rvalue = new Decompiler_Binop($this, $op1val, $opc, $op2val);
$resvar = $rvalue;
// }}}
}
else if (isset($this->unaryops[$opc])) { // {{{
$op1val = $this->getOpVal($op1, $EX);
$myop = $this->unaryops[$opc];
$rvalue = "$myop$op1val";
$resvar = $rvalue;
// }}}
}
else {
switch ($opc) {
case XC_NEW: // {{{
array_push($EX['arg_types_stack'], array($EX['fbc'], $EX['object'], $EX['called_scope']));
$EX['object'] = (int) $res['var'];
$EX['called_scope'] = null;
$EX['fbc'] = 'new ' . $this->unquoteName($this->getOpVal($op1, $EX));
if (!ZEND_ENGINE_2) {
$resvar = '$new object$';
}
break;
// }}}
case XC_FETCH_CLASS: // {{{
if ($op2['op_type'] == XC_IS_UNUSED) {
switch (($ext & (defined('ZEND_FETCH_CLASS_MASK') ? ZEND_FETCH_CLASS_MASK : 0xFF))) {
case ZEND_FETCH_CLASS_SELF:
$class = 'self';
break;
case ZEND_FETCH_CLASS_PARENT:
$class = 'parent';
break;
case ZEND_FETCH_CLASS_STATIC:
$class = 'static';
break;
}
$istmpres = true;
}
else {
$class = $op2['constant'];
if (is_object($class)) {
$class = get_class($class);
}
}
$resvar = $class;
break;
// }}}
case XC_FETCH_CONSTANT: // {{{
if ($op1['op_type'] == XC_IS_CONST) {
$resvar = $op1['constant'];
}
else if ($op1['op_type'] == XC_IS_UNUSED) {
$resvar = $op2['constant'];
}
else {
$class = $T[$op1['var']];
assert($class[0] == 'class');
$resvar = $class[1] . '::' . $op2['constant'];
}
break;
// }}}
// {{{ case XC_FETCH_*
case XC_FETCH_R:
case XC_FETCH_W:
case XC_FETCH_RW:
case XC_FETCH_FUNC_ARG:
case XC_FETCH_UNSET:
case XC_FETCH_IS:
case XC_UNSET_VAR:
$rvalue = $this->getOpVal($op1, $EX);
if (defined('ZEND_FETCH_TYPE_MASK')) {
$fetchtype = ($ext & ZEND_FETCH_TYPE_MASK);
}
else {
$fetchtype = $op2[!ZEND_ENGINE_2 ? 'fetch_type' : 'EA.type'];
}
switch ($fetchtype) {
case ZEND_FETCH_STATIC_MEMBER:
$class = $this->getOpVal($op2, $EX);
$rvalue = $class . '::$' . $this->unquoteName($rvalue);
break;
default:
$name = $this->unquoteName($rvalue);
$globalname = xcache_is_autoglobal($name) ? "\$$name" : "\$GLOBALS[$rvalue]";
$rvalue = new Decompiler_Fetch($rvalue, $fetchtype, $globalname);
break;
}
if ($opc == XC_UNSET_VAR) {
$op['php'] = "unset(" . str($rvalue, $EX) . ")";
$lastphpop = &$op;
}
else if ($res['op_type'] != XC_IS_UNUSED) {
$resvar = $rvalue;
}
break;
// }}}
// {{{ case XC_FETCH_DIM_*
case XC_FETCH_DIM_TMP_VAR:
case XC_FETCH_DIM_R:
case XC_FETCH_DIM_W:
case XC_FETCH_DIM_RW:
case XC_FETCH_DIM_FUNC_ARG:
case XC_FETCH_DIM_UNSET:
case XC_FETCH_DIM_IS:
case XC_ASSIGN_DIM:
case XC_UNSET_DIM:
case XC_UNSET_DIM_OBJ:
$src = $this->getOpVal($op1, $EX, false);
if (is_a($src, "Decompiler_ForeachBox")) {
$src->iskey = $this->getOpVal($op2, $EX);
$resvar = $src;
break;
}
else if (is_a($src, "Decompiler_DimBox")) {
$dimbox = $src;
}
else {
if (!is_a($src, "Decompiler_ListBox")) {
$list = new Decompiler_List($this->getOpVal($op1, $EX, false));
$src = new Decompiler_ListBox($list);
if (!isset($op1['var'])) {
$this->dumpop($op, $EX);
var_dump($op);
die('missing var');
}
$T[$op1['var']] = $src;
unset($list);
}
$dim = new Decompiler_Dim($src);
$src->obj->dims[] = &$dim;
$dimbox = new Decompiler_DimBox($dim);
}
$dim = &$dimbox->obj;
$dim->offsets[] = $this->getOpVal($op2, $EX);
if ($ext == ZEND_FETCH_ADD_LOCK) {
$src->obj->everLocked = true;
}
else if ($ext == ZEND_FETCH_STANDARD) {
$dim->isLast = true;
}
unset($dim);
$rvalue = $dimbox;
if ($opc == XC_ASSIGN_DIM) {
$lvalue = $rvalue;
++ $i;
$rvalue = $this->getOpVal($opcodes[$i]['op1'], $EX);
$resvar = str($lvalue, $EX) . ' = ' . $rvalue;
}
else if ($opc == XC_UNSET_DIM) {
$op['php'] = "unset(" . str($rvalue, $EX) . ")";
$lastphpop = &$op;
}
else if ($res['op_type'] != XC_IS_UNUSED) {
$resvar = $rvalue;
}
break;
// }}}
case XC_ASSIGN: // {{{
$lvalue = $this->getOpVal($op1, $EX);
$rvalue = $this->getOpVal($op2, $EX, false);
if (is_a($rvalue, 'Decompiler_ForeachBox')) {
$type = $rvalue->iskey ? 'fe_key' : 'fe_as';
$rvalue->obj[$type] = $lvalue;
unset($T[$op2['var']]);
break;
}
if (is_a($rvalue, "Decompiler_DimBox")) {
$dim = &$rvalue->obj;
$dim->assign = $lvalue;
if ($dim->isLast) {
$resvar = foldToCode($dim->value, $EX);
}
unset($dim);
break;
}
$resvar = "$lvalue = " . str($rvalue, $EX);
break;
// }}}
case XC_ASSIGN_REF: // {{{
$lvalue = $this->getOpVal($op1, $EX);
$rvalue = $this->getOpVal($op2, $EX, false);
if (is_a($rvalue, 'Decompiler_Fetch')) {
$src = foldToCode($rvalue->src, $EX);
if (substr($src, 1, -1) == substr($lvalue, 1)) {
switch ($rvalue->fetchType) {
case ZEND_FETCH_GLOBAL:
case ZEND_FETCH_GLOBAL_LOCK:
$resvar = 'global ' . $lvalue;
break 2;
case ZEND_FETCH_STATIC:
$statics = &$EX['op_array']['static_variables'];
$resvar = 'static ' . $lvalue;