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fixes #172: avoid exposing spec fiction %AsyncFromSyncIteratorPrototype% #182

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Jul 6, 2022
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fixes #172: avoid exposing spec fiction %AsyncFromSyncIteratorPrototype% #182

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5 changes: 3 additions & 2 deletions spec.html
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Original file line number Diff line number Diff line change
Expand Up @@ -309,16 +309,17 @@ <h1>AsyncIterator.prototype</h1>
<h1>AsyncIterator.from ( _O_ )</h1>
<emu-alg>
1. Let _usingIterator_ be ? GetMethod(_O_, @@asyncIterator).
1. Let _iteratorRecord_ be *undefined*.
1. If _usingIterator_ is not *undefined*,
1. Let _iteratorRecord_ be ? GetIterator(_O_, ~async~, _usingIterator_).
1. Set _iteratorRecord_ to ? GetIterator(_O_, ~async~, _usingIterator_).
1. Let _hasInstance_ be ? OrdinaryHasInstance(%AsyncIterator.prototype%, _iteratorRecord_.[[Iterator]]).
1. If _hasInstance_ is *true*, then
1. Return _iteratorRecord_.[[Iterator]].
1. If _iteratorRecord_ is *undefined*,
1. Set _usingIterator_ to ? GetMethod(_O_, @@iterator).
1. If _usingIterator_ is not *undefined*,
1. Let _syncIteratorRecord_ be ? GetIterator(_O_, ~sync~, _usingIterator_).
1. Return ! CreateAsyncFromSyncIterator(_syncIteratorRecord_).
1. Set _iteratorRecord_ to ! CreateAsyncFromSyncIterator(_syncIteratorRecord_).
1. If _iteratorRecord_ is *undefined*, set _iteratorRecord_ to ? GetIteratorDirect(_O_).
1. Let _wrapper_ be ! ObjectCreate(%WrapForValidAsyncIteratorPrototype%, &laquo; [[AsyncIterated]] &raquo;).
1. Set _wrapper_.[[AsyncIterated]] to _iteratorRecord_.
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