/**
* @inheritDoc
*/
public function getSignal()
{
$signal = parent::getSignal();
if (is_null($signal)) {
$input = $this->source->getSignal();
if (!is_null($input)) {
$signal = SixteenBitMask::mask(~$input);
$this->setSignal($signal);
}
}
return $signal;
}
/**
* @inheritDoc
*/
public function getSignal()
{
$signal = parent::getSignal();
if (is_null($signal)) {
$signalA = $this->sourceA->getSignal();
$signalB = $this->sourceB->getSignal();
if (!is_null($signalA) && !is_null($signalB)) {
$signal = SixteenBitMask::mask($signalA & $signalB);
$this->setSignal($signal);
}
}
return $signal;
}
/**
* @inheritDoc
*/
public function getSignal()
{
return !is_null($this->signal) ? SixteenBitMask::mask($this->signal) : null;
}
/**
* @test
* @covers ::mask
*/
public function masksIntegerLargerThanSixteenBits()
{
$this->assertSame(1, SixteenBitMask::mask(bindec('10000000000000001')));
}
