[RFC] Remove LazyPromise

README.md

@@ -32,7 +32,6 @@ Table of Contents
    * [Promise](#promise-2)
    * [FulfilledPromise](#fulfilledpromise)
    * [RejectedPromise](#rejectedpromise)
-   * [LazyPromise](#lazypromise)
    * [Functions](#functions)
      * [resolve()](#resolve)
      * [reject()](#reject)
@@ -156,7 +155,6 @@ Neither its state nor its result (or error) can be modified.
 * [Promise](#promise-2)
 * [FulfilledPromise](#fulfilledpromise)
 * [RejectedPromise](#rejectedpromise)
-* [LazyPromise](#lazypromise)
 
 #### PromiseInterface::then()
 
@@ -361,27 +359,6 @@ $promise = React\Promise\RejectedPromise($reason);
 Note, that `$reason` **cannot** be a promise. It's recommended to use
 [reject()](#reject) for creating rejected promises.
 
-### LazyPromise
-
-Creates a promise which will be lazily initialized by `$factory` once a consumer
-calls the `then()` method.
-
-```php
-$factory = function () {
-    $deferred = new React\Promise\Deferred();
-
-    // Do some heavy stuff here and resolve the deferred once completed
-
-    return $deferred->promise();
-};
-
-$promise = new React\Promise\LazyPromise($factory);
-
-// $factory will only be executed once we call then()
-$promise->then(function ($value) {
-});
-```
-
 ### Functions
 
 Useful functions for creating, joining, mapping and reducing collections of

src/Promise.php

@@ -132,19 +132,8 @@ private function settle(PromiseInterface $result)
 
     private function unwrap($promise)
     {
-        $promise = $this->extract($promise);
-
         while ($promise instanceof self && null !== $promise->result) {
-            $promise = $this->extract($promise->result);
-        }
-
-        return $promise;
-    }
-
-    private function extract($promise)
-    {
-        if ($promise instanceof LazyPromise) {
-            $promise = $promise->promise();
+            $promise = $promise->result;
         }
 
         if ($promise === $this) {