Sema: Never record argument label mismatches for unlabeled trailing closures #82020
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
AnthonyLatsis
force-pushed
the
camellia-sinensis
branch
from
556d6f9 to
30a1123
Compare
|
@swift-ci please smoke test macOS |
xedin
approved these changes
Jun 5, 2025
…losures Fixes a crash on invalid. The previous logic was causing a label mismatch constraint fix to be recorded for an unlabeled trailing closure argument matching a variadic paramater after a late recovery argument claim in `matchCallArgumentsImpl`, because the recovery claiming skips arguments matching defaulted parameters, but not variadic ones. We may want to reconsider that last part, but currently it regresses the quality of some diagnostics, and this is a targeted fix. The previous behavior is fine because the diagnosis routine associate with the constraint fix (`diagnoseArgumentLabelError`) skips unlabeled trailing closures when tallying labeling issues — *unless* there are no other issues and the tally is zero, which we assert it is not. Fixes rdar://152313388.
AnthonyLatsis
force-pushed
the
camellia-sinensis
branch
from
30a1123 to
f2e1420
Compare
|
Heyyy, Hamish compiler crash fixed! |
|
@swift-ci please smoke test |
|
@swift-ci please test source compatibility |
|
@swift-ci please smoke test Linux |
|
Source compatibility failures not related, reproduce with main too. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Fixes a crash on invalid. The previous logic was causing a label mismatch constraint fix to be recorded for an unlabeled trailing closure argument matching a variadic paramater after a late recovery argument claim in
matchCallArgumentsImpl, because the recovery claiming skips arguments matching defaulted parameters, but not variadic ones. We may want to reconsider that last part, but currently it regresses the quality of some diagnostics, and this is a targeted fix.The previous behavior is fine because the diagnosis routine associate with the constraint fix (
diagnoseArgumentLabelError) skips unlabeled trailing closures when tallying labeling issues — unless there are no other issues and the tally is zero, which we assert it is not.Minimal crasher:
Fixes rdar://152313388.