[PATCH] D46325: [clang-tidy] Define __clang_analyzer__ macro for clang-tidy for compatibility with clang static analyzer. 2nd try.

[Zinovy Nis via Phabricator via cfe-commits]

zinovy.nis created this revision.
zinovy.nis added reviewers: george.karpenkov, alexfh, hokein.
zinovy.nis added a project: clang-tools-extra.
Herald added subscribers: cfe-commits, a.sidorin, xazax.hun.

This macro is widely used in many well-known projects, ex. Chromium.

But it's not set for clang-tidy, so for ex. DCHECK in Chromium is not considered as [[no-return]], and a lot of false-positive warnings about nullptr dereferenced are emitted.

This patch fixes the issue.
This revision is the second version of https://reviews.llvm.org/D44906.


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D46325

Files:
  clang-tidy/ClangTidy.cpp
  test/clang-tidy/clang-tidy-__clang_analyzer__macro.cpp


Index: test/clang-tidy/clang-tidy-__clang_analyzer__macro.cpp
===================================================================
--- test/clang-tidy/clang-tidy-__clang_analyzer__macro.cpp
+++ test/clang-tidy/clang-tidy-__clang_analyzer__macro.cpp
@@ -0,0 +1,5 @@
+// RUN: clang-tidy %s -checks=-*,modernize-use-nullptr -- | count 0
+
+#if !defined(__clang_analyzer__)
+#error __clang_analyzer__ is not defined
+#endif
Index: clang-tidy/ClangTidy.cpp
===================================================================
--- clang-tidy/ClangTidy.cpp
+++ clang-tidy/ClangTidy.cpp
@@ -529,6 +529,15 @@
     ActionFactory(ClangTidyContext &Context) : ConsumerFactory(Context) {}
     FrontendAction *create() override { return new Action(&ConsumerFactory); }
 
+    bool runInvocation(std::shared_ptr<CompilerInvocation> Invocation,
+                       FileManager *Files,
+                       std::shared_ptr<PCHContainerOperations> PCHContainerOps,
+                       DiagnosticConsumer *DiagConsumer) override {
+      Invocation->getFrontendOpts().ProgramAction = frontend::RunAnalysis;
+      return FrontendActionFactory::runInvocation(
+          Invocation, Files, PCHContainerOps, DiagConsumer);
+    }
+
   private:
     class Action : public ASTFrontendAction {
     public:


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