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Accumulator.php
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218 lines (180 loc) · 4.72 KB
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<?php
declare(strict_types=1);
namespace PHPJava\Kernel\Core;
use PHPJava\Core\JavaClass;
use PHPJava\Core\JVM\ClassInvokerInterface;
use PHPJava\Exceptions\IllegalOperationException;
use PHPJava\Kernel\Provider\DependencyInjectionProvider;
use PHPJava\Kernel\Structures\MethodInfo;
trait Accumulator
{
/**
* @var null|JavaClass
*/
protected $javaClass;
/**
* @var \PHPJava\Kernel\Attributes\AttributeInfo[]
*/
protected $attributes = [];
/**
* @var ClassInvokerInterface
*/
protected $javaClassInvoker;
/**
* @var \PHPJava\Core\JVM\Stream\BinaryReader
*/
protected $reader;
/**
* @var array
*/
protected $localStorage;
/**
* @var int
*/
protected $pointer;
/**
* @var array
*/
protected $stacks = [];
/**
* @var array
*/
protected $options;
/**
* @var MethodInfo $method
*/
protected $method;
/**
* @var DependencyInjectionProvider
*/
protected $dependencyInjectionProvider;
protected $poppedOperandStacks = [];
protected $pushedOperandStacks = [];
public function setParameters(
MethodInfo $method,
ClassInvokerInterface $javaClassInvoker,
\PHPJava\Core\JVM\Stream\BinaryReader $reader,
array &$localStorage,
array &$stacks,
int $pointer,
DependencyInjectionProvider $dependencyInjectionProvider
): self {
$this->method = $method;
$this->attributes = $method->getAttributes();
$this->javaClassInvoker = $javaClassInvoker;
$this->javaClass = $javaClassInvoker->getJavaClass();
$this->options = $this->javaClass->getOptions();
$this->reader = $reader;
$this->localStorage = &$localStorage;
$this->stacks = &$stacks;
$this->pointer = $pointer;
$this->dependencyInjectionProvider = $dependencyInjectionProvider;
return $this;
}
final public function read(int $bytes = 1): string
{
return $this->reader->read($bytes);
}
public function readByte(): int
{
return $this->reader->readByte();
}
public function readUnsignedByte(): int
{
return $this->reader->readUnsignedByte();
}
public function readUnsignedInt(): int
{
return $this->reader->readUnsignedInt();
}
public function readUnsignedShort(): int
{
return $this->reader->readUnsignedShort();
}
public function readInt(): int
{
return $this->reader->readInt();
}
public function readShort(): int
{
return $this->reader->readShort();
}
public function readUnsignedLong(): int
{
return $this->reader->readUnsignedLong();
}
public function readLong(): int
{
return current(unpack('q', $this->read(8)));
}
public function seek(int $bytes): void
{
$this->reader->seek($bytes);
}
public function setOffset(int $pointer): void
{
$this->reader->setOffset($pointer);
}
public function getOffset(): int
{
return $this->reader->getOffset();
}
public function pushToOperandStack($value): void
{
$this->pushedOperandStacks[] = $this->stacks[] = $value;
}
public function pushToOperandStackByReference(&$value): void
{
$this->pushedOperandStacks[] = $this->stacks[] = &$value;
}
public function popFromOperandStack()
{
if (empty($this->stacks)) {
throw new IllegalOperationException('Cannot pop an item from stack.');
}
return $this->poppedOperandStacks[] = array_pop($this->stacks);
}
public function getCurrentStackIndex(): int
{
return count($this->stacks) - 1;
}
public function popStack(): self
{
$this->poppedOperandStacks[] = array_pop($this->stacks);
return $this;
}
public function getStacks()
{
return $this->stacks;
}
public function setLocalStorage($index, $value): void
{
$this->localStorage[(int) $index] = $value;
}
public function getLocalStorage($index)
{
if (!isset($this->localStorage[(int) $index])) {
$this->localStorage[(int) $index] = null;
}
return $this->localStorage[(int) $index];
}
public function getLocalStorages(): array
{
return $this->localStorage;
}
public function getProgramCounter(): int
{
return $this->pointer;
}
public function getOptions($key)
{
return $this->options[$key] ?? null;
}
/**
* @return \PHPJava\Kernel\Attributes\AttributeInfo[]
*/
public function getAttributes(): array
{
return $this->attributes;
}
}