use asyncIteratorSymbol helper to check for async Iterator#176
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kitten merged 1 commit into0no-co:mainfrom Apr 18, 2025
Merged
use asyncIteratorSymbol helper to check for async Iterator#176kitten merged 1 commit into0no-co:mainfrom
kitten merged 1 commit into0no-co:mainfrom
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Apr 18, 2025
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Nice catch! Very unintentional that this wasn't using the helper
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Thanks for the quick review on this ! |
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Summary
This fix eliminates the possibility of a runtime error in environments without native support for
Symbol.asyncIteratorand async generators. In these environments it's likely Symbol.asyncIterator is not defined.Babel regenerator that transforms the source to support async generators falls back to "@@asynciterator" when Symbol.asyncIterator is not available.
https://github.com/facebook/regenerator/blob/main/packages/runtime/runtime.js#L17
The fix is to use the existing "asyncIteratorSymbol" helper in Wonka to return the symbol for asynIterator, which accounts for filled-in support.
Set of changes