fix(api): correct ReadableStreamDefaultController.desiredSize value type#44536
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gords2 wants to merge 1 commit into
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fix(api): correct ReadableStreamDefaultController.desiredSize value type#44536gords2 wants to merge 1 commit into
gords2 wants to merge 1 commit into
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desiredSize is not always an integer: with a custom queuing strategy the chunk sizes (and therefore desiredSize) can be non-integer. It is also null when the stream has errored and 0 when it is closed.
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Fixes #44486
The Value section claimed
desiredSizeis "An integer", which is inaccurate on two counts (both raised in the issue):null—ReadableStreamDefaultController.desiredSizereturnsnullwhen the stream has errored (and0when it is closed), per the spec algorithm.desiredSizefrom the queuing strategy'ssize()results. A custom queuing strategy can return non-integer sizes, sodesiredSizecan be non-integer too.Updated the description to state the type as "A number, or
null" and to explain the negative / non-integer / null / closed cases.