You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
856 B
34 lines
856 B
'use strict'; |
|
|
|
var GetIntrinsic = require('get-intrinsic'); |
|
|
|
var $TypeError = GetIntrinsic('%TypeError%'); |
|
|
|
var getIteratorMethod = require('../helpers/getIteratorMethod'); |
|
var AdvanceStringIndex = require('./AdvanceStringIndex'); |
|
var Call = require('./Call'); |
|
var GetMethod = require('./GetMethod'); |
|
var IsArray = require('./IsArray'); |
|
var Type = require('./Type'); |
|
|
|
// https://ecma-international.org/ecma-262/6.0/#sec-getiterator |
|
|
|
module.exports = function GetIterator(obj, method) { |
|
var actualMethod = method; |
|
if (arguments.length < 2) { |
|
actualMethod = getIteratorMethod( |
|
{ |
|
AdvanceStringIndex: AdvanceStringIndex, |
|
GetMethod: GetMethod, |
|
IsArray: IsArray |
|
}, |
|
obj |
|
); |
|
} |
|
var iterator = Call(actualMethod, obj); |
|
if (Type(iterator) !== 'Object') { |
|
throw new $TypeError('iterator must return an object'); |
|
} |
|
|
|
return iterator; |
|
};
|
|
|