context重构

dist/fix/fix.compact.ie.js

@@ -34,9 +34,6 @@
 
     function popTarget () {
         Fix.Model.target = target = targetStack.pop();
-        if (targetStack.length <= 0) {
-            Fix.Model.target = target = null;
-        }
     }
 
     var oldWatch = Fix.watch;
@@ -231,14 +228,14 @@
             BI.defer(function () {
                 additionFunc();
             }, 200);
-        }
+        };
         var back = window.history.back;
         window.history.back = function () {
             back.apply(this, arguments);
             BI.defer(function () {
                 additionFunc();
             }, 200);
-        }
+        };
     }
 
     if (BI.Router) {
@@ -246,7 +243,7 @@
         BI.Router.prototype.execute = function () {
             execute.apply(this, arguments);
             additionFunc();
-        }
+        };
     }
 
     _.each(["each", "map", "reduce", "reduceRight", "find", "filter", "reject", "every", "all", "some", "any", "max", "min",
@@ -325,7 +322,7 @@
         } finally {
             return _.cloneDeep(obj);
         }
-    }
+    };
     Fix.del = function (obj, k) {
         try {
             delete obj[k];
@@ -334,5 +331,5 @@
         } finally {
             return _.cloneDeep(obj);
         }
-    }
+    };
 }());

dist/fix/fix.compact.js

@@ -34,9 +34,6 @@
 
     function popTarget () {
         Fix.Model.target = target = targetStack.pop();
-        if (targetStack.length <= 0) {
-            Fix.Model.target = target = null;
-        }
     }
 
     var oldWatch = Fix.watch;

src/core/widget.js

@@ -518,9 +518,6 @@
 
     BI.Widget.popContext = function () {
         BI.Widget.context = context = contextStack.pop();
-        if (contextStack.length <= 0) {
-            BI.Widget.context = context = null;
-        }
     };
 
     function pushTarget (_current) {
@@ -530,9 +527,6 @@
 
     function popTarget () {
         BI.Widget.current = current = currentStack.pop();
-        if (currentStack.length <= 0) {
-            BI.Widget.current = current = null;
-        }
     }
 
     BI.onBeforeMount = function (beforeMount) {