Fixes the invocation syntax to be PHP 5.x compatible. (#12)

Changes the collection macro's to use a cached version of the factory to improve
performance.

Author: robinmalburn

helpers.php

@@ -11,6 +11,7 @@
      */
     function present($model, $presenter)
     {
-        return (new PresenterFactory)($model, $presenter);
+        $factory = new PresenterFactory;
+        return $factory($model, $presenter);
     }
 }

src/Presentable.php

@@ -13,6 +13,7 @@ trait Presentable
      */
     public function present($presenter)
     {
-        return (new PresenterFactory)($this, $presenter);
+        $factory = new PresenterFactory;
+        return $factory($this, $presenter);
     }
 }

src/PresenterServiceProvider.php

@@ -10,15 +10,17 @@ class PresenterServiceProvider extends ServiceProvider
 {
     public function boot()
     {
-        Collection::macro('present', function ($class) {
-            return $this->map(function ($object) use ($class) {
-                return (new PresenterFactory)($object, $class);
+        $factory = new PresenterFactory;
+
+        Collection::macro('present', function ($class) use ($factory) {
+            return $this->map(function ($object) use ($class, $factory) {
+                return $factory($object, $class);
             });
         });
 
-        Collection::macro('presentTransformed', function ($class) {
-            return $this->transform(function ($object) use ($class) {
-                return (new PresenterFactory)($object, $class);
+        Collection::macro('presentTransformed', function ($class) use ($factory) {
+            return $this->transform(function ($object) use ($class, $factory) {
+                return $factory($object, $class);
             });
         });
     }

tests/PresenterTest.php

@@ -39,15 +39,17 @@ public function setupDatabase()
 
     public function registerCollectionMacros()
     {
-        Collection::macro('present', function ($class) {
-            return $this->map(function ($object) use ($class) {
-                return (new PresenterFactory)($object, $class);
+        $factory = new PresenterFactory;
+
+        Collection::macro('present', function ($class) use ($factory) {
+            return $this->map(function ($object) use ($class, $factory) {
+                return $factory($object, $class);
             });
         });
 
-        Collection::macro('presentTransformed', function ($class) {
-            return $this->transform(function ($object) use ($class) {
-                return (new PresenterFactory)($object, $class);
+        Collection::macro('presentTransformed', function ($class) use ($factory) {
+            return $this->transform(function ($object) use ($class, $factory) {
+                return $factory($object, $class);
             });
         });
     }