feat(scope): broadcast $destroy event on scope destruction

perf testing shows that in chrome this change adds 5-15% overhead
when destroying 10k nested scopes where each scope has a $destroy listener

1 files changed, 12 insertions, 0 deletions

diff --git a/test/service/scopeSpec.js b/test/service/scopeSpec.js
index 95b028fe..972584cf 100644
--- a/test/service/scopeSpec.js
+++ b/test/service/scopeSpec.js
@@ -2,6 +2,9 @@
 
 describe('Scope', function() {
 
+  beforeEach(module(provideLog));
+
+
   describe('$root', function() {
     it('should point to itself', inject(function($rootScope) {
       expect($rootScope.$root).toEqual($rootScope);
@@ -393,6 +396,15 @@ describe('Scope', function() {
       $rootScope.$digest();
       expect(log).toEqual('12');
     }));
+
+
+    it('should broadcast the $destroy event', inject(function($rootScope, log) {
+      first.$on('$destroy', log.fn('first'));
+      first.$new().$on('$destroy', log.fn('first-child'));
+
+      first.$destroy();
+      expect(log).toEqual('first; first-child');
+    }));
   });