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StackMapFrameInfo.php
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49 lines (43 loc) · 1.68 KB
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<?php
declare(strict_types=1);
namespace PHPJava\Kernel\Structures;
class StackMapFrameInfo implements StructureInterface
{
use \PHPJava\Kernel\Core\BinaryReader;
use \PHPJava\Kernel\Core\ConstantPool;
use \PHPJava\Kernel\Core\DebugTool;
/**
* @var int
*/
private $frameType;
/**
* @var null|StructureInterface
*/
private $frame;
public function execute(): void
{
$this->frameType = $this->readUnsignedByte();
// back by frametype
$this->reader->getReader()->seek(-1);
if ($this->frameType >= 0 && $this->frameType <= 63) {
$this->frame = new \PHPJava\Kernel\Frames\SameFrame($this->reader);
} elseif ($this->frameType >= 64 && $this->frameType <= 127) {
$this->frame = new \PHPJava\Kernel\Frames\SameLocals1StackItemFrame($this->reader);
} elseif ($this->frameType == 247) {
$this->frame = new \PHPJava\Kernel\Frames\SameLocals1StackItemFrameExtended($this->reader);
} elseif ($this->frameType >= 248 && $this->frameType <= 250) {
$this->frame = new \PHPJava\Kernel\Frames\ChopFrame($this->reader);
} elseif ($this->frameType == 251) {
$this->frame = new \PHPJava\Kernel\Frames\SameFrameExtended($this->reader);
} elseif ($this->frameType >= 252 && $this->frameType <= 254) {
$this->frame = new \PHPJava\Kernel\Frames\AppendFrame($this->reader);
} elseif ($this->frameType == 255) {
$this->frame = new \PHPJava\Kernel\Frames\FullFrame($this->reader);
}
$this->frame->execute();
}
public function getFrame(): StructureInterface
{
return $this->frame;
}
}