From 2475ce47e4c76bb8924d74f2d859ccd8a59e7b2b Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Mon, 18 Apr 2011 00:12:40 +0200
Subject: [PATCH] Make ArrayRepository more extensible

---
 src/Composer/Repository/ArrayRepository.php | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Repository/ArrayRepository.php b/src/Composer/Repository/ArrayRepository.php
index f73b5bed7..a1afc5343 100644
--- a/src/Composer/Repository/ArrayRepository.php
+++ b/src/Composer/Repository/ArrayRepository.php
@@ -21,7 +21,7 @@ use Composer\Package\PackageInterface;
  */
 class ArrayRepository implements RepositoryInterface
 {
-    protected $packages = array();
+    protected $packages;
 
     /**
      * Adds a new package to the repository
@@ -41,6 +41,9 @@ class ArrayRepository implements RepositoryInterface
      */
     public function getPackages()
     {
+        if (null === $this->packages) {
+            $this->initialize();
+        }
         return $this->packages;
     }
 
@@ -53,4 +56,12 @@ class ArrayRepository implements RepositoryInterface
     {
         return count($this->packages);
     }
+
+    /**
+     * Initializes the packages array. Mostly meant as an extension point.
+     */
+    protected function initialize()
+    {
+        $this->packages = array();
+    }
 }