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'use strict';
var GetIntrinsic = require('../GetIntrinsic');
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,
Type: Type
},
obj
);
}
var iterator = Call(actualMethod, obj);
if (Type(iterator) !== 'Object') {
throw new $TypeError('iterator must return an object');
}
return iterator;
};
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