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vendor/react/promise/src/LazyPromise.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace React\Promise;
+
+/**
+ * @deprecated 2.8.0 LazyPromise is deprecated and should not be used anymore.
+ */
+class LazyPromise implements ExtendedPromiseInterface, CancellablePromiseInterface
+{
+    private $factory;
+    private $promise;
+
+    public function __construct(callable $factory)
+    {
+        $this->factory = $factory;
+    }
+
+    public function then(callable $onFulfilled = null, callable $onRejected = null, callable $onProgress = null)
+    {
+        return $this->promise()->then($onFulfilled, $onRejected, $onProgress);
+    }
+
+    public function done(callable $onFulfilled = null, callable $onRejected = null, callable $onProgress = null)
+    {
+        return $this->promise()->done($onFulfilled, $onRejected, $onProgress);
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->promise()->otherwise($onRejected);
+    }
+
+    public function always(callable $onFulfilledOrRejected)
+    {
+        return $this->promise()->always($onFulfilledOrRejected);
+    }
+
+    public function progress(callable $onProgress)
+    {
+        return $this->promise()->progress($onProgress);
+    }
+
+    public function cancel()
+    {
+        return $this->promise()->cancel();
+    }
+
+    /**
+     * @internal
+     * @see Promise::settle()
+     */
+    public function promise()
+    {
+        if (null === $this->promise) {
+            try {
+                $this->promise = resolve(\call_user_func($this->factory));
+            } catch (\Throwable $exception) {
+                $this->promise = new RejectedPromise($exception);
+            } catch (\Exception $exception) {
+                $this->promise = new RejectedPromise($exception);
+            }
+        }
+
+        return $this->promise;
+    }
+}