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, 21 insertions, 0 deletions

diff --git a/perf/MiscPerf.js b/perf/MiscPerf.js
new file mode 100644
index 00000000..c1d71cbd
--- /dev/null
+++ b/perf/MiscPerf.js
@@ -0,0 +1,21 @@
+describe('perf misc', function(){
+  it('operation speeds', function(){
+    perf(
+      function typeByTypeof(){ return typeof noop == 'function'; }, // WINNER
+      function typeByProperty() { return noop.apply && noop.call; },
+      function typeByConstructor() { return noop.constructor == Function; }
+    );
+  });
+
+  it('property access', function(){
+    var name = 'value';
+    var none = 'x';
+    var scope = {};
+    perf(
+      function direct(){ return scope.value; }, // WINNER
+      function byName() { return scope[name]; },
+      function undefinedDirect(){ return scope.x; },
+      function undefiendByName() { return scope[none]; }
+    );
+  });
+});