Completed
Push — master ( b2a65d...63a169 )
by Kirill
02:18
created

Process::tick()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 6

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
nc 1
nop 1
dl 0
loc 6
rs 10
c 0
b 0
f 0
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<?php
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/**
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 * This file is part of Railt package.
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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declare(strict_types=1);
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namespace Railt\SDL\Process;
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/**
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 * Class Process
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 */
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class Process implements ProcessInterface
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{
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    /**
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     * @var array|InterceptorInterface[]
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     */
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    private $interceptors = [];
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    /**
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     * @var array|callable[]
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     */
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    private $ticks = [];
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    /**
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     * @var \SplQueue|DeferredInterface[]
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     */
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    private $deferred;
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    /**
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     * Process constructor.
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     */
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    public function __construct()
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    {
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        $this->deferred = new \SplQueue();
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    }
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    /**
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     * @param mixed $process
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     * @return mixed
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     */
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    public function await($process)
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    {
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        return $this->runDeferredResolvers($this->exec($process));
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    }
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    /**
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     * @param mixed $process
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     * @return mixed
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     */
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    private function exec($process)
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    {
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        return $process instanceof \Generator ? $this->coroutine($process) : $this->each($process);
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    }
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    /**
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     * @param callable $callable
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     * @return DeferredInterface
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     */
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    public function deferred(callable $callable): DeferredInterface
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    {
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        return $this->deferred[] = new Deferred($this, $callable);
0 ignored issues
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Documentation introduced by
$callable is of type callable, but the function expects a object<Closure>.

It seems like the type of the argument is not accepted by the function/method which you are calling.

In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.

We suggest to add an explicit type cast like in the following example:

function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
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    }
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    /**
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     * @return iterable|DeferredInterface[]
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     */
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    private function getDeferredResolvers(): iterable
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    {
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        while ($this->deferred->count()) {
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            yield $this->deferred->pop();
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        }
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    }
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    /**
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     * @param mixed $value
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     * @return mixed
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     */
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    private function runDeferredResolvers($value)
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    {
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        foreach ($this->getDeferredResolvers() as $resolver) {
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            $this->each($resolver->invoke($value));
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        }
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        return $value;
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    }
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    /**
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     * @param \Generator $process
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     * @return mixed
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     */
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    private function coroutine(\Generator $process)
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    {
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        while ($process->valid()) {
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            $process->send($this->each($process->current()));
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        }
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        return $this->each($process->getReturn());
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    }
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    /**
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     * @param callable $handler
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     * @return ProcessInterface
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     */
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    public function tick(callable $handler): ProcessInterface
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    {
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        $this->ticks[] = $handler;
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        return $this;
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    }
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    /**
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     * @param mixed $value
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     * @return mixed
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     */
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    private function each($value)
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    {
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        return $this->runTickHandlers($this->reduce($this->interceptors, $value));
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    }
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    /**
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     * @param array $interceptors
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     * @param mixed $value
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     * @return mixed
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     */
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    private function reduce(array $interceptors, $value)
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    {
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        foreach ($interceptors as $index => $interceptor) {
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            if ($interceptor->match($value)) {
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                $value = $interceptor->invoke($value);
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                return $this->reduce($this->arrayExcept($interceptors, $index), $value);
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            }
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        }
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        return $value;
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    }
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    /**
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     * @param array $items
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     * @param int $index
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     * @return array
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     */
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    private function arrayExcept(array $items, int $index): array
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    {
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        unset($items[$index]);
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        return $items;
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    }
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    /**
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     * @param mixed $value
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     * @return mixed
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     */
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    private function runTickHandlers($value)
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    {
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        foreach ($this->ticks as $tick) {
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            $tick($value);
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        }
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        return $value;
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    }
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    /**
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     * @param InterceptorInterface $interceptor
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     * @return ProcessInterface
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     */
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    public function intercept(InterceptorInterface $interceptor): ProcessInterface
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    {
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        $this->interceptors[] = $interceptor;
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        return $this;
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    }
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    /**
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     * @param mixed|\Generator $result
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     * @return \Generator
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     */
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    public static function toGenerator($result): \Generator
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    {
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        if ($result instanceof \Generator) {
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            yield from $result;
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            return $result->getReturn();
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        }
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        return $result;
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    }
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}
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