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Diffstat (limited to 'node_modules/es-abstract/2015/GetIterator.js')
-rw-r--r-- | node_modules/es-abstract/2015/GetIterator.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2015/GetIterator.js b/node_modules/es-abstract/2015/GetIterator.js new file mode 100644 index 000000000..7beddacc0 --- /dev/null +++ b/node_modules/es-abstract/2015/GetIterator.js @@ -0,0 +1,35 @@ +'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; +}; |