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/home/desid573/cf.desidrivers.com.au/site/google/api/vendor/guzzlehttp/promises/src/

/home/desid573/cf.desidrivers.com.au/site/google/api/vendor/guzzlehttp/promises/src

Name	Size	Mode	Actions
AggregateException.php	379	0644	edit dl rm
CancellationException.php	182	0644	edit dl rm
Coroutine.php	3938	0644	edit dl rm
EachPromise.php	7278	0644	edit dl rm
FulfilledPromise.php	1966	0644	edit dl rm
functions.php	12054	0644	edit dl rm
functions_include.php	167	0644	edit dl rm
Promise.php	8779	0644	edit dl rm
PromiseInterface.php	2830	0644	edit dl rm
PromisorInterface.php	243	0644	edit dl rm
RejectedPromise.php	2229	0644	edit dl rm
RejectionException.php	1217	0644	edit dl rm
TaskQueue.php	1928	0644	edit dl rm
TaskQueueInterface.php	468	0644	edit dl rm

Edit: /home/desid573/cf.desidrivers.com.au/site/google/api/vendor/guzzlehttp/promises/src/Promise.php (8779B)

<?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) {
            return $onFulfilled
                ? promise_for($this->result)->then($onFulfilled)
                : promise_for($this->result);
        }

// It's either cancelled or rejected, so return a rejected promise
        // and immediately invoke any callbacks.
        $rejection = rejection_for($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();

$inner = $this->result instanceof PromiseInterface
            ? $this->result->wait($unwrap)
            : $this->result;

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

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.
        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 (!method_exists($value, 'then')) {
            $id = $state === self::FULFILLED ? 1 : 2;
            // It's a success, so resolve the handlers in the queue.
            queue()->add(static function () use ($id, $value, $handlers) {
                foreach ($handlers as $handler) {
                    self::callHandler($id, $value, $handler);
                }
            });
        } elseif ($value instanceof Promise
            && $value->getState() === self::PENDING
        ) {
            // 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 $handler Array of handler data (promise and callbacks).
     *
     * @return array Returns the next group to resolve.
     */
    private static function callHandler($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 ($promise->getState() !== self::PENDING) {
            return;
        }

try {
            if (isset($handler[$index])) {
                $promise->resolve($handler[$index]($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 not 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.');
        }

queue()->run();

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) {
            while (true) {
                $result->waitIfPending();

if ($result->result instanceof Promise) {
                    $result = $result->result;
                } else {
                    if ($result->result instanceof PromiseInterface) {
                        $result->result->wait(false);
                    }
                    break;
                }
            }
        }
    }
}

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