[PATCH] D65182: [analyzer] Add fix-it hint support.

Kristóf Umann via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Wed Aug 14 06:29:17 PDT 2019

Szelethus accepted this revision.
Szelethus added subscribers: gribozavr, aaron.ballman, alexfh.
Szelethus added a comment.

Hmm, why the need for checker options? Why not have them by default? If fixits are an experimental feature, maybe we should have a global `enable-fixits` config maybe. But I don't insist :)

Now that we proposed that clang-tidy should also use the BugReporter, maybe we should let some clang-tidy folks chip in on this.

In any case, a direction is set and looks great.

Comment at: clang/include/clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h:879
+  ArrayRef<FixItHint> getFixits() const { return Fixits; }
Hmm, will this return an immutable container? If not, can we make it so?

Comment at: clang/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp:743
+        assert(!Hint.isNull());
+        // FIXME: Add support for InsertFromRange and BeforePreviousInsertion.
+        o << "   <dict>\n";
Shouldn't we assert this?

Comment at: clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp:84
 namespace {
 class ClangDiagPathDiagConsumer : public PathDiagnosticConsumer {
   DiagnosticsEngine &Diag;
Oh my god. This must be a runner up for "Worst class name in the Clang Static Analyzer", and might even all the trophies home. I wanted to make a joke about honorable mentions, but nothing compares :^)

Comment at: clang/test/Analysis/objc-arc.m:1
-// RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.cocoa.RetainCount,deadcode -verify -fblocks -analyzer-opt-analyze-nested-blocks -fobjc-arc -analyzer-output=plist-multi-file -o %t.plist %s
+// RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.cocoa.RetainCount,deadcode -verify -fblocks -analyzer-opt-analyze-nested-blocks -fobjc-arc -analyzer-output=plist-multi-file -analyzer-config deadcode.DeadStores:ShowFixIts=true -o %t.plist %s
 // RUN: %normalize_plist <%t.plist | diff -ub %S/Inputs/expected-plists/objc-arc.m.plist -
Just thinking aloud, but maybe it'd be time to create a `RUN:` line formatter for test files, WDYT?



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