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TryRemoveLastFilterIfNewerThanAsync should not throw #12778

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merged 2 commits into from
Apr 10, 2024
Merged

TryRemoveLastFilterIfNewerThanAsync should not throw #12778

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94f1c0b
Try function should not throw
turbolay Apr 8, 2024
d93076e
Add a simple test
kiminuo Apr 8, 2024
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4 changes: 2 additions & 2 deletions WalletWasabi/Stores/IndexStore.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -317,14 +317,14 @@ public async Task<FilterModel[]> FetchBatchAsync(uint fromHeight, int batchSize,
{
if (!IndexStorage.TryRemoveLast(out filter))
{
throw new InvalidOperationException("No last filter.");
return null;
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@kiminuo kiminuo Apr 8, 2024 •
edited

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So this is important when there are no blocks in the database, right?

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I think there was some history about why we throw the exception but I can't recall why we did it and given the method's name and what it does I would expect the method NOT to throw, so I think it's a good change.

}
}
else
{
if (!IndexStorage.TryRemoveLastIfNewerThan(height.Value, out filter))
{
throw new InvalidOperationException("No last filter.");
return null;
}
}

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