+++ /dev/null
-'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;
-};