Add option to visit implicit code, such as compiler generated CTORs

Although clazy's built-in checks don't need this, some custom user
checks might

Not enabled by default as it causes a slight slowdown

BUG: 385851

4 files changed, 17 insertions, 1 deletions

diff --git a/src/Clazy.cpp b/src/Clazy.cpp
index 8014d81b..0b1875ab 100644
--- a/src/Clazy.cpp
+++ b/src/Clazy.cpp
@@ -200,6 +200,9 @@ bool ClazyASTAction::ParseArgs(const CompilerInstance &ci, const std::vector<std
     if (parseArgument("qt-developer", args))
         m_options |= ClazyContext::ClazyOption_QtDeveloper;
 
+    if (parseArgument("visit-implicit-code", args))
+        m_options |= ClazyContext::ClazyOption_VisitImplicitCode;
+
     m_context = new ClazyContext(ci, m_options);
 
     // This argument is for debugging purposes
diff --git a/src/Clazy.h b/src/Clazy.h
index ee960531..8d89d893 100644
--- a/src/Clazy.h
+++ b/src/Clazy.h
@@ -91,6 +91,7 @@ class ClazyASTConsumer : public clang::ASTConsumer,
 public:
     explicit ClazyASTConsumer(ClazyContext *context);
     ~ClazyASTConsumer();
+    bool shouldVisitImplicitCode() const { return m_context->isVisitImplicitCode(); }
 
     bool VisitDecl(clang::Decl *decl);
     bool VisitStmt(clang::Stmt *stm);
diff --git a/src/ClazyContext.h b/src/ClazyContext.h
index 5a41d322..c2311ceb 100644
--- a/src/ClazyContext.h
+++ b/src/ClazyContext.h
@@ -56,7 +56,8 @@ public:
         ClazyOption_AllFixitsEnabled = 4,
         ClazyOption_Qt4Compat = 8,
         ClazyOption_OnlyQt = 16, // Ignore non-Qt files. This is done by bailing out if QT_CORE_LIB is not set.
-        ClazyOption_QtDeveloper = 32 // For running clazy on Qt itself, optional, but honours specific guidelines
+        ClazyOption_QtDeveloper = 32, // For running clazy on Qt itself, optional, but honours specific guidelines
+        ClazyOption_VisitImplicitCode = 64, // Inspect compiler generated code aswell.
     };
     typedef int ClazyOptions;
 
@@ -88,6 +89,11 @@ public:
         return options & ClazyOption_QtDeveloper;
     }
 
+    bool isVisitImplicitCode() const
+    {
+        return options & ClazyContext::ClazyOption_VisitImplicitCode;
+    }
+
     bool isOptionSet(const std::string &optionName) const
     {
         return clazy_std::contains(extraOptions, optionName);
diff --git a/src/ClazyStandaloneMain.cpp b/src/ClazyStandaloneMain.cpp
index 5270b234..04b20c88 100644
--- a/src/ClazyStandaloneMain.cpp
+++ b/src/ClazyStandaloneMain.cpp
@@ -53,6 +53,9 @@ static cl::opt<bool> s_onlyQt("only-qt", cl::desc("Won't emit warnings for non-Q
 static cl::opt<bool> s_qtDeveloper("qt-developer", cl::desc("For running clazy on Qt itself, optional, but honours specific guidelines"),
                               cl::init(false), cl::cat(s_clazyCategory));
 
+static cl::opt<bool> s_visitImplicitCode("visit-implicit-code", cl::desc("Should clazy visit implicit code like compiler generated construktors"),
+                              cl::init(false), cl::cat(s_clazyCategory));
+
 static cl::extrahelp s_commonHelp(CommonOptionsParser::HelpMessage);
 
 class ClazyToolActionFactory : public clang::tooling::FrontendActionFactory
@@ -79,6 +82,9 @@ public:
         if (s_onlyQt.getValue())
             options |= ClazyContext::ClazyOption_OnlyQt;
 
+        if (s_visitImplicitCode.getValue())
+            options |= ClazyContext::ClazyOption_VisitImplicitCode;
+
         return new ClazyStandaloneASTAction(s_checks.getValue(), options);
     }
 };