Publish snapshot map changelog #622
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Tried to extend this to |
But see latest version. |
maurolacy
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| pub fn changelog(&self) -> Map<u64, ChangeSet<T>> { | ||
| // Build and return a compatible Map with the proper key type | ||
| Map::new(unsafe { from_utf8_unchecked(self.snapshots.changelog.namespace()) }) |
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Why not expose this functionality as a method on Snapshot? (self.snapshots.changelog())
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No, because I'm overriding the changelog map key type here. Our empty (Unit) keys have a particular behaviour, in that they are not length-prefixed zero-length elements in tuples (they are just being skipped, when building the key).
Anyway, that's another issue, and (in this case) due to an implementation detail. What I can do to improve on this is to save the changelog namespace in this class, so that I can use it here directly, and avoid the re-conversion to string. Will do.
Yes, I like this approach. Give the user direct access to the changelog without making the whole underlying snapshot item public, very good compromise between the two approaches I suggested. Thanks so much @maurolacy! |
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Related to #600 and #621.
To allow prefixing / iteration over the changelog entries.