From f9fae921cc0b0aacf2e1d8f99f9b5ba8eefaa9d0 Mon Sep 17 00:00:00 2001
From: Tobe O <thosakwe@gmail.com>
Date: Mon, 22 Oct 2018 11:21:58 -0400
Subject: [PATCH] registerLazySingleton

---
 angel_container/lib/src/container.dart | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/angel_container/lib/src/container.dart b/angel_container/lib/src/container.dart
index 38ecf942..07bfd87f 100644
--- a/angel_container/lib/src/container.dart
+++ b/angel_container/lib/src/container.dart
@@ -92,6 +92,20 @@ class Container {
     }
   }
 
+  /// Shorthand for registering a factory that injects a singleton when it runs.
+  /// 
+  /// In many cases, you might prefer this to [registerFactory].
+  void registerLazySingleton<T>(T Function(Container) f, {Type as}) {
+    registerFactory<T>(
+      (container) {
+        var r = f(container);
+        container.registerSingleton<T>(r, as: as);
+        return r;
+      },
+      as: as,
+    );
+  }
+
   void registerFactory<T>(T Function(Container) f, {Type as}) {
     as ??= T;