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BinaryWriter.php
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110 lines (92 loc) · 2.25 KB
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<?php
declare(strict_types=1);
namespace PHPJava\Core\JVM\Stream;
use PHPJava\Exceptions\CompilerException;
class BinaryWriter implements StreamWriterInterface
{
/**
* @var resource
*/
private $handle;
/**
* @var int
*/
private $offset = 0;
/**
* @var bool
*/
private $buffer = false;
/**
* @param resource $handle
*/
public function __construct($handle)
{
$this->handle = $handle;
}
public function write(string $binary)
{
fwrite($this->handle, $binary);
return $this;
}
public function writeByte(int $value): self
{
return $this->write(pack('c', $value));
}
public function writeUnsignedByte(int $value): self
{
return $this->write(pack('C', $value));
}
public function writeInt(int $value): self
{
if ($value < 0) {
$value += 0x800000;
}
return $this->writeUnsignedInt($value);
}
public function writeUnsignedInt(int $value): self
{
return $this->write(pack('N', $value));
}
public function writeShort(int $value): self
{
return $this->writeUnsignedShort($value);
}
public function writeUnsignedShort(int $value): self
{
return $this->write(pack('n', $value));
}
public function writeLong(int $value): self
{
throw new CompilerException(
'Write a long size value to a binary file is not implemented yet.'
);
return $this;
}
public function writeUnsignedLong(int $value): self
{
return $this->write(pack('J', $value));
}
public function isWritable(): bool
{
$meta = stream_get_meta_data($this->handle);
if (!isset($meta['mode'])) {
return false;
}
foreach (['w', 'r+', 'a', 'c', 'x'] as $mode) {
if (strstr($meta['mode'], $mode) !== false) {
return true;
}
}
return false;
}
public function enableBuffer(bool $isEnabled): self
{
$this->buffer = $isEnabled;
return $this;
}
public function getStreamContents()
{
rewind($this->handle);
return stream_get_contents($this->handle);
}
}