prefer if let
to match with None => {}
arm in some places
#34638
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This is a spiritual succesor to #34268 / 8531d58, in which we replaced a
number of matches of None to the unit value with
if let
conditionalswhere it was judged that this made for clearer/simpler code (as would be
recommended by Manishearth/rust-clippy's
single_match
lint). The samerationale applies to matches of None to the empty block.
r? @jseyfried