1 files changed, 51 insertions, 0 deletions
diff --git a/node_modules/core-js/internals/iterator-create-proxy.js b/node_modules/core-js/internals/iterator-create-proxy.js
new file mode 100644
index 0000000..951db73
--- /dev/null
+++ b/node_modules/core-js/internals/iterator-create-proxy.js
@@ -0,0 +1,51 @@
+'use strict';
+var path = require('../internals/path');
+var aFunction = require('../internals/a-function');
+var anObject = require('../internals/an-object');
+var create = require('../internals/object-create');
+var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
+var redefineAll = require('../internals/redefine-all');
+var wellKnownSymbol = require('../internals/well-known-symbol');
+var InternalStateModule = require('../internals/internal-state');
+
+var setInternalState = InternalStateModule.set;
+var getInternalState = InternalStateModule.get;
+
+var TO_STRING_TAG = wellKnownSymbol('toStringTag');
+
+var $return = function (value) {
+  var iterator = getInternalState(this).iterator;
+  var $$return = iterator['return'];
+  return $$return === undefined ? { done: true, value: value } : anObject($$return.call(iterator, value));
+};
+
+var $throw = function (value) {
+  var iterator = getInternalState(this).iterator;
+  var $$throw = iterator['throw'];
+  if ($$throw === undefined) throw value;
+  return $$throw.call(iterator, value);
+};
+
+module.exports = function (nextHandler, IS_ITERATOR) {
+  var IteratorProxy = function Iterator(state) {
+    state.next = aFunction(state.iterator.next);
+    state.done = false;
+    setInternalState(this, state);
+  };
+
+  IteratorProxy.prototype = redefineAll(create(path.Iterator.prototype), {
+    next: function next() {
+      var state = getInternalState(this);
+      var result = state.done ? undefined : nextHandler.apply(state, arguments);
+      return { done: state.done, value: result };
+    },
+    'return': $return,
+    'throw': $throw
+  });
+
+  if (!IS_ITERATOR) {
+    createNonEnumerableProperty(IteratorProxy.prototype, TO_STRING_TAG, 'Generator');
+  }
+
+  return IteratorProxy;
+};