1 files changed, 31 insertions, 28 deletions

diff --git a/node_modules/core-js/modules/es6.weak-map.js b/node_modules/core-js/modules/es6.weak-map.js
index 4109db336..f21556d7c 100644
--- a/node_modules/core-js/modules/es6.weak-map.js
+++ b/node_modules/core-js/modules/es6.weak-map.js
@@ -1,56 +1,59 @@
 'use strict';
-var each         = require('./_array-methods')(0)
-  , redefine     = require('./_redefine')
-  , meta         = require('./_meta')
-  , assign       = require('./_object-assign')
-  , weak         = require('./_collection-weak')
-  , isObject     = require('./_is-object')
-  , getWeak      = meta.getWeak
-  , isExtensible = Object.isExtensible
-  , uncaughtFrozenStore = weak.ufstore
-  , tmp          = {}
-  , InternalMap;
+var each = require('./_array-methods')(0);
+var redefine = require('./_redefine');
+var meta = require('./_meta');
+var assign = require('./_object-assign');
+var weak = require('./_collection-weak');
+var isObject = require('./_is-object');
+var fails = require('./_fails');
+var validate = require('./_validate-collection');
+var WEAK_MAP = 'WeakMap';
+var getWeak = meta.getWeak;
+var isExtensible = Object.isExtensible;
+var uncaughtFrozenStore = weak.ufstore;
+var tmp = {};
+var InternalMap;
 
-var wrapper = function(get){
-  return function WeakMap(){
+var wrapper = function (get) {
+  return function WeakMap() {
     return get(this, arguments.length > 0 ? arguments[0] : undefined);
   };
 };
 
 var methods = {
   // 23.3.3.3 WeakMap.prototype.get(key)
-  get: function get(key){
-    if(isObject(key)){
+  get: function get(key) {
+    if (isObject(key)) {
       var data = getWeak(key);
-      if(data === true)return uncaughtFrozenStore(this).get(key);
+      if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);
       return data ? data[this._i] : undefined;
     }
   },
   // 23.3.3.5 WeakMap.prototype.set(key, value)
-  set: function set(key, value){
-    return weak.def(this, key, value);
+  set: function set(key, value) {
+    return weak.def(validate(this, WEAK_MAP), key, value);
   }
 };
 
 // 23.3 WeakMap Objects
-var $WeakMap = module.exports = require('./_collection')('WeakMap', wrapper, methods, weak, true, true);
+var $WeakMap = module.exports = require('./_collection')(WEAK_MAP, wrapper, methods, weak, true, true);
 
 // IE11 WeakMap frozen keys fix
-if(new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7){
-  InternalMap = weak.getConstructor(wrapper);
+if (fails(function () { return new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7; })) {
+  InternalMap = weak.getConstructor(wrapper, WEAK_MAP);
   assign(InternalMap.prototype, methods);
   meta.NEED = true;
-  each(['delete', 'has', 'get', 'set'], function(key){
-    var proto  = $WeakMap.prototype
-      , method = proto[key];
-    redefine(proto, key, function(a, b){
+  each(['delete', 'has', 'get', 'set'], function (key) {
+    var proto = $WeakMap.prototype;
+    var method = proto[key];
+    redefine(proto, key, function (a, b) {
       // store frozen objects on internal weakmap shim
-      if(isObject(a) && !isExtensible(a)){
-        if(!this._f)this._f = new InternalMap;
+      if (isObject(a) && !isExtensible(a)) {
+        if (!this._f) this._f = new InternalMap();
         var result = this._f[key](a, b);
         return key == 'set' ? this : result;
       // store all the rest on native weakmap
       } return method.call(this, a, b);
     });
   });
-}
\ No newline at end of file
+}