feat(scope): new and improved scope implementation

- Speed improvements (about 4x on flush phase)
- Memory improvements (uses no function closures)
- Break $eval into $apply, $dispatch, $flush
- Introduced $watch and $observe

Breaks angular.equals() use === instead of ==
Breaks angular.scope() does not take parent as first argument
Breaks scope.$watch() takes scope as first argument
Breaks scope.$set(), scope.$get are removed
Breaks scope.$config is removed
Breaks $route.onChange callback has not "this" bounded

1 files changed, 19 insertions, 16 deletions

diff --git a/test/service/locationSpec.js b/test/service/locationSpec.js
index f5a8c6b2..73e5e43e 100644
--- a/test/service/locationSpec.js
+++ b/test/service/locationSpec.js
@@ -46,9 +46,10 @@ describe('$location', function() {
     $location.update('http://www.angularjs.org/');
     $location.update({path: '/a/b'});
     expect($location.href).toEqual('http://www.angularjs.org/a/b');
-    expect($browser.getUrl()).toEqual(origBrowserUrl);
-    scope.$eval();
     expect($browser.getUrl()).toEqual('http://www.angularjs.org/a/b');
+    $location.path = '/c';
+    scope.$digest();
+    expect($browser.getUrl()).toEqual('http://www.angularjs.org/c');
   });
 
 
@@ -65,7 +66,7 @@ describe('$location', function() {
 
   it('should update hash on hashPath or hashSearch update', function() {
     $location.update('http://server/#path?a=b');
-    scope.$eval();
+    scope.$digest();
     $location.update({hashPath: '', hashSearch: {}});
 
     expect($location.hash).toEqual('');
@@ -74,10 +75,10 @@ describe('$location', function() {
 
   it('should update hashPath and hashSearch on $location.hash change upon eval', function(){
     $location.update('http://server/#path?a=b');
-    scope.$eval();
+    scope.$digest();
 
     $location.hash = '';
-    scope.$eval();
+    scope.$digest();
 
     expect($location.href).toEqual('http://server/');
     expect($location.hashPath).toEqual('');
@@ -88,11 +89,13 @@ describe('$location', function() {
   it('should update hash on $location.hashPath or $location.hashSearch change upon eval',
       function() {
     $location.update('http://server/#path?a=b');
-    scope.$eval();
+    expect($location.href).toEqual('http://server/#path?a=b');
+    expect($location.hashPath).toEqual('path');
+    expect($location.hashSearch).toEqual({a:'b'});
+
     $location.hashPath = '';
     $location.hashSearch = {};
-
-    scope.$eval();
+    scope.$digest();
 
     expect($location.href).toEqual('http://server/');
     expect($location.hash).toEqual('');
@@ -103,14 +106,14 @@ describe('$location', function() {
     scope.$location = scope.$service('$location'); //publish to the scope for $watch
 
     var log = '';
-    scope.$watch('$location.hash', function(){
-      log += this.$location.hashPath + ';';
-    });
+    scope.$watch('$location.hash', function(scope){
+      log += scope.$location.hashPath + ';';
+    })();
     expect(log).toEqual(';');
 
     log = '';
     scope.$location.hash = '/abc';
-    scope.$eval();
+    scope.$digest();
     expect(scope.$location.hash).toEqual('/abc');
     expect(log).toEqual('/abc;');
   });
@@ -120,7 +123,7 @@ describe('$location', function() {
 
     it('should update hash with escaped hashPath', function() {
       $location.hashPath = 'foo=bar';
-      scope.$eval();
+      scope.$digest();
       expect($location.hash).toBe('foo%3Dbar');
     });
 
@@ -133,7 +136,7 @@ describe('$location', function() {
       $location.host = 'host';
       $location.href = 'https://hrefhost:23/hrefpath';
 
-      scope.$eval();
+      scope.$digest();
 
       expect($location).toEqualData({href: 'https://hrefhost:23/hrefpath',
                                      protocol: 'https',
@@ -156,7 +159,7 @@ describe('$location', function() {
       $location.host = 'host';
       $location.path = '/path';
 
-      scope.$eval();
+      scope.$digest();
 
       expect($location).toEqualData({href: 'http://host:333/path#hash',
                                      protocol: 'http',
@@ -237,7 +240,7 @@ describe('$location', function() {
       expect($location.href).toBe('http://server');
       expect($location.hash).toBe('');
 
-      scope.$eval();
+      scope.$digest();
 
       expect($location.href).toBe('http://server');
       expect($location.hash).toBe('');