public function testVM()
{
$vm = new VM("", 10);
$this->assertInstanceOf("Brainfart\\VM\\Memory", $vm->getMemory());
$this->assertInstanceOf("Brainfart\\VM\\Output", $vm->getOutput());
$this->assertInstanceOf("Brainfart\\VM\\Input", $vm->getInput());
$this->assertEquals(10, $vm->getLoopLimit());
}
/**
* @param string $source
* @param string $input
* @param int $fetchMode
*
* @return array|string
*/
public function run($source, $input = "", $fetchMode = Output::FETCH_ARRAY)
{
$this->parser->loadSource($source);
if ($this->parser->getFlag("string_output") === true) {
$fetchMode = Output::FETCH_STRING;
}
$appLoop = $this->parser->parse($this->optimize);
$appInput = $this->parser->getInput();
if (!empty($appInput)) {
$input = $appInput;
}
$this->vm->init($input);
$appLoop->execute($this->vm);
return $this->vm->getOutput()->fetch($fetchMode);
}
/**
* @param \Brainfart\VM\VM $vm
*
* @throws \RuntimeException
*/
public function execute(VM $vm)
{
$operations = $this->getOperations();
$limit = $vm->getLoopLimit();
$i = 0;
while ($this->getMaster() || $vm->getMemory()->fetch() != 0) {
foreach ($operations as $operation) {
/** @noinspection PhpUndefinedMethodInspection */
$operation->execute($vm);
}
if ($this->getMaster()) {
break;
}
$i++;
if ($limit > 0 && $limit < $i) {
throw new \RuntimeException("Limit of {$limit} operations per loop reached.");
}
}
}
/**
* @param \Brainfart\VM\VM $vm
*/
public function execute(VM $vm)
{
$vm->getOutput()->store($vm->getMemory()->fetch());
}
/**
* @param \Brainfart\VM\VM $vm
*/
public function execute(VM $vm)
{
$vm->getMemory()->move($this->getValue());
}
/**
* @param \Brainfart\VM\VM $vm
*/
public function execute(VM $vm)
{
sleep($vm->getMemory()->fetch());
}