node_modules

1 files changed, 66 insertions, 0 deletions

diff --git a/node_modules/core-js/modules/$.iter-define.js b/node_modules/core-js/modules/$.iter-define.js
new file mode 100644
index 000000000..630cdf385
--- /dev/null
+++ b/node_modules/core-js/modules/$.iter-define.js
@@ -0,0 +1,66 @@
+'use strict';
+var LIBRARY        = require('./$.library')
+  , $export        = require('./$.export')
+  , redefine       = require('./$.redefine')
+  , hide           = require('./$.hide')
+  , has            = require('./$.has')
+  , Iterators      = require('./$.iterators')
+  , $iterCreate    = require('./$.iter-create')
+  , setToStringTag = require('./$.set-to-string-tag')
+  , getProto       = require('./$').getProto
+  , ITERATOR       = require('./$.wks')('iterator')
+  , BUGGY          = !([].keys && 'next' in [].keys()) // Safari has buggy iterators w/o `next`
+  , FF_ITERATOR    = '@@iterator'
+  , KEYS           = 'keys'
+  , VALUES         = 'values';
+
+var returnThis = function(){ return this; };
+
+module.exports = function(Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED){
+  $iterCreate(Constructor, NAME, next);
+  var getMethod = function(kind){
+    if(!BUGGY && kind in proto)return proto[kind];
+    switch(kind){
+      case KEYS: return function keys(){ return new Constructor(this, kind); };
+      case VALUES: return function values(){ return new Constructor(this, kind); };
+    } return function entries(){ return new Constructor(this, kind); };
+  };
+  var TAG        = NAME + ' Iterator'
+    , DEF_VALUES = DEFAULT == VALUES
+    , VALUES_BUG = false
+    , proto      = Base.prototype
+    , $native    = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT]
+    , $default   = $native || getMethod(DEFAULT)
+    , methods, key;
+  // Fix native
+  if($native){
+    var IteratorPrototype = getProto($default.call(new Base));
+    // Set @@toStringTag to native iterators
+    setToStringTag(IteratorPrototype, TAG, true);
+    // FF fix
+    if(!LIBRARY && has(proto, FF_ITERATOR))hide(IteratorPrototype, ITERATOR, returnThis);
+    // fix Array#{values, @@iterator}.name in V8 / FF
+    if(DEF_VALUES && $native.name !== VALUES){
+      VALUES_BUG = true;
+      $default = function values(){ return $native.call(this); };
+    }
+  }
+  // Define iterator
+  if((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])){
+    hide(proto, ITERATOR, $default);
+  }
+  // Plug for library
+  Iterators[NAME] = $default;
+  Iterators[TAG]  = returnThis;
+  if(DEFAULT){
+    methods = {
+      values:  DEF_VALUES  ? $default : getMethod(VALUES),
+      keys:    IS_SET      ? $default : getMethod(KEYS),
+      entries: !DEF_VALUES ? $default : getMethod('entries')
+    };
+    if(FORCED)for(key in methods){
+      if(!(key in proto))redefine(proto, key, methods[key]);
+    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
+  }
+  return methods;
+};
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