design: simplified view interfaces

modules/change_detection/src/change_detection.js

@@ -11,12 +11,11 @@ export class ChangeDetection {
   detectChanges():int {
     var current:Record = _rootWatchGroup._headRecord;
     var count:number = 0;
-    while(current != null) {
-      if(current.check()) {
+    while (current != null) {
+      if (current.check()) {
         count++;
       }
     }
     return count;
   }
-  
 }

modules/change_detection/src/facade.dart

@@ -0,0 +1,3 @@
+library change_detection.facade;
+
+typedef SetterFn(Object obj, value);

modules/change_detection/src/facade.es6

@@ -0,0 +1 @@
+export var SetterFn = Function;

modules/change_detection/src/record.js

@@ -23,8 +23,8 @@ export class ProtoRecord {
   constructor(watchGroup:ProtoWatchGroup, fieldName:String) {
     this.watchGroup = watchGroup;
     this.fieldName = fieldName;
-    this._next = null;
-    this._prev = null;
+    this.next = null;
+    this.prev = null;
     this._checkNext = null;
     this._checkPrev = null;
     this._notifierNext = null;
@@ -36,17 +36,17 @@ export class ProtoRecord {
 
   instantiate(watchGroup:WatchGroup):Record {
     var record = this._clone = new Record(watchGroup, this);
-    record._prev = this._prev._clone;
+    record.prev = this.prev._clone;
     record._checkPrev = this._checkPrev._clone;
     return _clone;
   }
 
   instantiateComplete():Record {
     var record = this._clone;
-    record._next = this._next._clone;
+    record.next = this.next._clone;
     record._checkNext = this._checkNext._clone;
     this._clone = null;
-    return this._next;
+    return this.next;
   }
 }
 
@@ -97,8 +97,8 @@ export class Record {
   constructor(watchGroup:WatchGroup, protoRecord:ProtoRecord) {
     this.protoRecord = protoRecord;
     this.watchGroup = watchGroup;
-    this._next = null;
-    this._prev = null;
+    this.next = null;
+    this.prev = null;
     this._checkNext = null;
     this._checkPrev = null;
     this._notifierNext = null;

modules/change_detection/src/watch_group.js

@@ -1,5 +1,4 @@
 import {ProtoRecord, Record} from './record';
-import {WatchGroupDispatcher} from './watch_group_dispatcher';
 
 export class ProtoWatchGroup {
   @FIELD('final _headRecord:ProtoRecord')
@@ -31,7 +30,8 @@ export class ProtoWatchGroup {
 
     proto = this._headRecord;
     while(proto != null) {
-      proto = proto.instantiateComplete();
+      proto.instantiateComplete();
+      proto = proto.next;
     }
 
     watchGroup._headRecord = head;
@@ -61,3 +61,7 @@ export class WatchGroup {
   }
 
 }
+
+export class WatchGroupDispatcher {
+  onRecordChange(record:Record, context) {}
+}

modules/change_detection/src/watch_group_dispatcher.js

@@ -1,5 +0,0 @@
-import {Record} from './record';
-
-export class WatchGroupDispatcher {
-  onRecordChange(record:Record, context) {}
-}