llvm-project/clang-tools-extra/test/clang-apply-replacements
Haojian Wu f2879d8a48 [clang-tidy] Add fix descriptions to clang-tidy checks.
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
2019-04-17 12:53:59 +00:00
..
Inputs [clang-tidy] Add fix descriptions to clang-tidy checks. 2019-04-17 12:53:59 +00:00
ClangRenameClassReplacements.cpp
basic.cpp
conflict.cpp
crlf.cpp Avoid assumption that lit tests are writable. NFC 2018-01-08 15:49:40 +00:00
format.cpp
identical.cpp Deduplicate replacements from diagnostics. 2018-09-25 08:24:07 +00:00
invalid-files.cpp [clang-tidy] Fixup clang-apply-replacements/invalid-files test 2017-07-25 14:39:08 +00:00
order-dependent.cpp [clang-apply-replacements] Convert tooling::Replacements to tooling::AtomicChange for conflict resolving of changes, code cleanup, and code formatting. 2018-04-11 14:39:17 +00:00