1 files changed, 32 insertions, 19 deletions
diff --git a/node_modules/core-js/modules/es6.weak-map.js b/node_modules/core-js/modules/es6.weak-map.js
index 72a9b3244..4109db336 100644
--- a/node_modules/core-js/modules/es6.weak-map.js
+++ b/node_modules/core-js/modules/es6.weak-map.js
@@ -1,40 +1,53 @@
 'use strict';
-var $            = require('./$')
-  , redefine     = require('./$.redefine')
-  , weak         = require('./$.collection-weak')
-  , isObject     = require('./$.is-object')
-  , has          = require('./$.has')
-  , frozenStore  = weak.frozenStore
-  , WEAK         = weak.WEAK
-  , isExtensible = Object.isExtensible || isObject
-  , tmp          = {};
+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;
 
-// 23.3 WeakMap Objects
-var $WeakMap = require('./$.collection')('WeakMap', function(get){
-  return function WeakMap(){ return get(this, arguments.length > 0 ? arguments[0] : undefined); };
-}, {
+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)){
-      if(!isExtensible(key))return frozenStore(this).get(key);
-      if(has(key, WEAK))return key[WEAK][this._i];
+      var data = getWeak(key);
+      if(data === true)return uncaughtFrozenStore(this).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);
   }
-}, weak, true, true);
+};
+
+// 23.3 WeakMap Objects
+var $WeakMap = module.exports = require('./_collection')('WeakMap', wrapper, methods, weak, true, true);
 
 // IE11 WeakMap frozen keys fix
 if(new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7){
-  $.each.call(['delete', 'has', 'get', 'set'], function(key){
+  InternalMap = weak.getConstructor(wrapper);
+  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){
-      // store frozen objects on leaky map
+      // store frozen objects on internal weakmap shim
       if(isObject(a) && !isExtensible(a)){
-        var result = frozenStore(this)[key](a, b);
+        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);