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Summary:
Motivation/Context: in the code review system integrating with clang-tidy,
clang-tidy doesn't provide a human-readable description of the fix. Usually
developers have to preview a code diff (before vs after apply the fix) to
understand what the fix does before applying a fix.
This patch proposes that each clang-tidy check provides a short and
actional fix description that can be shown in the UI, so that users can know
what the fix does without previewing diff.
This patch extends clang-tidy framework to support fix descriptions (will add implementations for
existing checks in the future). Fix descriptions and fixes are emitted via diagnostic::Note (rather than
attaching the main warning diagnostic).
Before this patch:
```
void MyCheck::check(...) {
...
diag(loc, "my check warning") << FixtItHint::CreateReplacement(...);
}
```
After:
```
void MyCheck::check(...) {
...
diag(loc, "my check warning"); // Emit a check warning
diag(loc, "fix description", DiagnosticIDs::Note) << FixtItHint::CreateReplacement(...); // Emit a diagnostic note and a fix
}
```
Reviewers: sammccall, alexfh
Reviewed By: alexfh
Subscribers: MyDeveloperDay, Eugene.Zelenko, aaron.ballman, JonasToth, xazax.hun, jdoerfert, cfe-commits
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D59932
llvm-svn: 358576
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Summary:
After r329813, clang-apply-replacements stopped deduplicating identical
replacements; however, tools like clang-tidy relies on the deduplication of
identical dignostics replacements from different TUs to apply fixes correctly.
This change partially roll back the behavior by deduplicating changes from
diagnostics. Ideally, we should deduplicate on diagnostics level, but we need to
figure out an effecient way.
Reviewers: bkramer
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D52264
llvm-svn: 342951
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tooling::AtomicChange for conflict resolving of changes, code cleanup, and code formatting.
Summary:
By converting Replacements by AtomicChange, clang-apply-replacements is able like clang-tidy to automatically cleanup and format changes.
This should permits to close this ticket: https://bugs.llvm.org/show_bug.cgi?id=35051 and attempt to follow hints from https://reviews.llvm.org/D43500 comments.
Reviewers: klimek, ioeric
Reviewed By: ioeric
Subscribers: malcolm.parsons, mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D43764
Patch by Jeremy Demeule.
llvm-svn: 329813
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