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Directory >> /home/aminiwrc/listing.aminikamanpower.com/vendor/guzzlehttp/promises/src/

File / Folder	Size	Action
.	-
AggregateException.php	0.371KB	edt ren
CancellationException.php	0.179KB	edt ren
Coroutine.php	4.244KB	edt ren
Create.php	2.063KB	edt ren
Each.php	2.819KB	edt ren
EachPromise.php	7.599KB	edt ren
FulfilledPromise.php	1.944KB	edt ren
Is.php	0.976KB	edt ren
Promise.php	8.734KB	edt ren
PromiseInterface.php	2.785KB	edt ren
PromisorInterface.php	0.238KB	edt ren
RejectedPromise.php	2.23KB	edt ren
RejectionException.php	1.189KB	edt ren
TaskQueue.php	1.895KB	edt ren
TaskQueueInterface.php	0.423KB	edt ren
Utils.php	8.5KB	edt ren
error_log	49.19KB	edt ren
functions.php	9.891KB	edt ren
functions_include.php	0.163KB	edt ren

<?php

namespace GuzzleHttp\Promise;

/**
 * Promises/A+ implementation that avoids recursion when possible.
 *
 * @link https://promisesaplus.com/
 */
class Promise implements PromiseInterface
{
    private $state = self::PENDING;
    private $result;
    private $cancelFn;
    private $waitFn;
    private $waitList;
    private $handlers = [];

/**
     * @param callable $waitFn   Fn that when invoked resolves the promise.
     * @param callable $cancelFn Fn that when invoked cancels the promise.
     */
    public function __construct(
        callable $waitFn = null,
        callable $cancelFn = null
    ) {
        $this->waitFn = $waitFn;
        $this->cancelFn = $cancelFn;
    }

public function then(
        callable $onFulfilled = null,
        callable $onRejected = null
    ) {
        if ($this->state === self::PENDING) {
            $p = new Promise(null, [$this, 'cancel']);
            $this->handlers[] = [$p, $onFulfilled, $onRejected];
            $p->waitList = $this->waitList;
            $p->waitList[] = $this;
            return $p;
        }

// Return a fulfilled promise and immediately invoke any callbacks.
        if ($this->state === self::FULFILLED) {
            $promise = Create::promiseFor($this->result);
            return $onFulfilled ? $promise->then($onFulfilled) : $promise;
        }

// It's either cancelled or rejected, so return a rejected promise
        // and immediately invoke any callbacks.
        $rejection = Create::rejectionFor($this->result);
        return $onRejected ? $rejection->then(null, $onRejected) : $rejection;
    }

public function otherwise(callable $onRejected)
    {
        return $this->then(null, $onRejected);
    }

public function wait($unwrap = true)
    {
        $this->waitIfPending();

if ($this->result instanceof PromiseInterface) {
            return $this->result->wait($unwrap);
        }
        if ($unwrap) {
            if ($this->state === self::FULFILLED) {
                return $this->result;
            }
            // It's rejected so "unwrap" and throw an exception.
            throw Create::exceptionFor($this->result);
        }
    }

public function getState()
    {
        return $this->state;
    }

public function cancel()
    {
        if ($this->state !== self::PENDING) {
            return;
        }

$this->waitFn = $this->waitList = null;

if ($this->cancelFn) {
            $fn = $this->cancelFn;
            $this->cancelFn = null;
            try {
                $fn();
            } catch (\Throwable $e) {
                $this->reject($e);
            } catch (\Exception $e) {
                $this->reject($e);
            }
        }

// Reject the promise only if it wasn't rejected in a then callback.
        /** @psalm-suppress RedundantCondition */
        if ($this->state === self::PENDING) {
            $this->reject(new CancellationException('Promise has been cancelled'));
        }
    }

public function resolve($value)
    {
        $this->settle(self::FULFILLED, $value);
    }

public function reject($reason)
    {
        $this->settle(self::REJECTED, $reason);
    }

private function settle($state, $value)
    {
        if ($this->state !== self::PENDING) {
            // Ignore calls with the same resolution.
            if ($state === $this->state && $value === $this->result) {
                return;
            }
            throw $this->state === $state
                ? new \LogicException("The promise is already {$state}.")
                : new \LogicException("Cannot change a {$this->state} promise to {$state}");
        }

if ($value === $this) {
            throw new \LogicException('Cannot fulfill or reject a promise with itself');
        }

// Clear out the state of the promise but stash the handlers.
        $this->state = $state;
        $this->result = $value;
        $handlers = $this->handlers;
        $this->handlers = null;
        $this->waitList = $this->waitFn = null;
        $this->cancelFn = null;

if (!$handlers) {
            return;
        }

// If the value was not a settled promise or a thenable, then resolve
        // it in the task queue using the correct ID.
        if (!is_object($value) || !method_exists($value, 'then')) {
            $id = $state === self::FULFILLED ? 1 : 2;
            // It's a success, so resolve the handlers in the queue.
            Utils::queue()->add(static function () use ($id, $value, $handlers) {
                foreach ($handlers as $handler) {
                    self::callHandler($id, $value, $handler);
                }
            });
        } elseif ($value instanceof Promise && Is::pending($value)) {
            // We can just merge our handlers onto the next promise.
            $value->handlers = array_merge($value->handlers, $handlers);
        } else {
            // Resolve the handlers when the forwarded promise is resolved.
            $value->then(
                static function ($value) use ($handlers) {
                    foreach ($handlers as $handler) {
                        self::callHandler(1, $value, $handler);
                    }
                },
                static function ($reason) use ($handlers) {
                    foreach ($handlers as $handler) {
                        self::callHandler(2, $reason, $handler);
                    }
                }
            );
        }
    }

/**
     * Call a stack of handlers using a specific callback index and value.
     *
     * @param int   $index   1 (resolve) or 2 (reject).
     * @param mixed $value   Value to pass to the callback.
     * @param array $handler Array of handler data (promise and callbacks).
     */
    private static function callHandler($index, $value, array $handler)
    {
        /** @var PromiseInterface $promise */
        $promise = $handler[0];

// The promise may have been cancelled or resolved before placing
        // this thunk in the queue.
        if (Is::settled($promise)) {
            return;
        }

try {
            if (isset($handler[$index])) {
                /*
                 * If $f throws an exception, then $handler will be in the exception
                 * stack trace. Since $handler contains a reference to the callable
                 * itself we get a circular reference. We clear the $handler
                 * here to avoid that memory leak.
                 */
                $f = $handler[$index];
                unset($handler);
                $promise->resolve($f($value));
            } elseif ($index === 1) {
                // Forward resolution values as-is.
                $promise->resolve($value);
            } else {
                // Forward rejections down the chain.
                $promise->reject($value);
            }
        } catch (\Throwable $reason) {
            $promise->reject($reason);
        } catch (\Exception $reason) {
            $promise->reject($reason);
        }
    }

private function waitIfPending()
    {
        if ($this->state !== self::PENDING) {
            return;
        } elseif ($this->waitFn) {
            $this->invokeWaitFn();
        } elseif ($this->waitList) {
            $this->invokeWaitList();
        } else {
            // If there's no wait function, then reject the promise.
            $this->reject('Cannot wait on a promise that has '
                . 'no internal wait function. You must provide a wait '
                . 'function when constructing the promise to be able to '
                . 'wait on a promise.');
        }

Utils::queue()->run();

/** @psalm-suppress RedundantCondition */
        if ($this->state === self::PENDING) {
            $this->reject('Invoking the wait callback did not resolve the promise');
        }
    }

private function invokeWaitFn()
    {
        try {
            $wfn = $this->waitFn;
            $this->waitFn = null;
            $wfn(true);
        } catch (\Exception $reason) {
            if ($this->state === self::PENDING) {
                // The promise has not been resolved yet, so reject the promise
                // with the exception.
                $this->reject($reason);
            } else {
                // The promise was already resolved, so there's a problem in
                // the application.
                throw $reason;
            }
        }
    }

private function invokeWaitList()
    {
        $waitList = $this->waitList;
        $this->waitList = null;

foreach ($waitList as $result) {
            do {
                $result->waitIfPending();
                $result = $result->result;
            } while ($result instanceof Promise);

if ($result instanceof PromiseInterface) {
                $result->wait(false);
            }
        }
    }
}

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