move Sequence\Defer::load() to ::memoize()

Author: Baptouuuu

src/Sequence/Defer.php

@@ -68,7 +68,7 @@ public function __invoke($element): Implementation
 
     public function size(): int
     {
-        return $this->load()->size();
+        return $this->memoize()->size();
     }
 
     public function count(): int
@@ -184,15 +184,15 @@ public function dropEnd(int $size): Implementation
     {
         // this cannot be optimised as the whole generator needs to be loaded
         // in order to know the elements to drop
-        return $this->load()->dropEnd($size);
+        return $this->memoize()->dropEnd($size);
     }
 
     /**
      * @param Implementation<T> $sequence
      */
     public function equals(Implementation $sequence): bool
     {
-        return $this->load()->equals($sequence);
+        return $this->memoize()->equals($sequence);
     }
 
     /**
@@ -241,7 +241,7 @@ public function foreach(callable $function): SideEffect
     public function groupBy(callable $discriminator): Map
     {
         /** @var Map<D, Sequence<T>> */
-        return $this->load()->groupBy($discriminator);
+        return $this->memoize()->groupBy($discriminator);
     }
 
     /**
@@ -453,7 +453,7 @@ public function pad(int $size, $element): Implementation
     public function partition(callable $predicate): Map
     {
         /** @var Map<bool, Sequence<T>> */
-        return $this->load()->partition($predicate);
+        return $this->memoize()->partition($predicate);
     }
 
     /**
@@ -516,7 +516,7 @@ public function takeEnd(int $size): Implementation
     {
         // this cannot be optimised as the whole generator needs to be loaded
         // in order to know the elements to drop
-        return $this->load()->takeEnd($size);
+        return $this->memoize()->takeEnd($size);
     }
 
     /**
@@ -835,7 +835,13 @@ public function aggregate(callable $map, callable $exfiltrate): self
      */
     public function memoize(): Implementation
     {
-        return $this->load();
+        $values = [];
+
+        foreach ($this->values as $value) {
+            $values[] = $value;
+        }
+
+        return new Primitive($values);
     }
 
     /**
@@ -907,20 +913,6 @@ public function takeWhile(callable $condition): self
         );
     }
 
-    /**
-     * @return Implementation<T>
-     */
-    private function load(): Implementation
-    {
-        $values = [];
-
-        foreach ($this->values as $value) {
-            $values[] = $value;
-        }
-
-        return new Primitive($values);
-    }
-
     /**
      * @return array{\WeakReference<self<T>>, \Iterator<T>}
      */