Observer: only walk object if it is plain

yyx990803 · yyx990803 · commit d4d61ef43f7b · 2015-08-30T09:25:13.000-04:00
diff --git a/src/observer/index.js b/src/observer/index.js
@@ -25,7 +25,7 @@ function Observer (value) {
       : copyAugment
     augment(value, arrayMethods, arrayKeys)
     this.observeArray(value)
-  } else {
+  } else if (_.isPlainObject(value)) {
     this.walk(value)
   }
 }
diff --git a/src/util/lang.js b/src/util/lang.js
@@ -191,8 +191,9 @@ exports.isObject = function (obj) {
  */
 
 var toString = Object.prototype.toString
+var OBJECT_STRING = '[object Object]'
 exports.isPlainObject = function (obj) {
-  return toString.call(obj) === '[object Object]'
+  return toString.call(obj) === OBJECT_STRING
 }
 
 /**

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ function Observer (value) {`
`25`	`25`	`: copyAugment`
`26`	`26`	`augment(value, arrayMethods, arrayKeys)`
`27`	`27`	`this.observeArray(value)`
`28`		`- } else {`
	`28`	`+ } else if (_.isPlainObject(value)) {`
`29`	`29`	`this.walk(value)`
`30`	`30`	`}`
`31`	`31`	`}`
Original file line number	Diff line number	Diff line change
`@@ -191,8 +191,9 @@ exports.isObject = function (obj) {`
`191`	`191`	`*/`
`192`	`192`
`193`	`193`	`var toString = Object.prototype.toString`
	`194`	`+var OBJECT_STRING = '[object Object]'`
`194`	`195`	`exports.isPlainObject = function (obj) {`
`195`		`- return toString.call(obj) === '[object Object]'`
	`196`	`+ return toString.call(obj) === OBJECT_STRING`
`196`	`197`	`}`
`197`	`198`
`198`	`199`	`/**`