3 files changed, 56 insertions, 0 deletions
diff --git a/clang/lib/Analysis/plugins/CheckerOptionHandling/CMakeLists.txt b/clang/lib/Analysis/plugins/CheckerOptionHandling/CMakeLists.txt
new file mode 100644
index 00000000000..6e289933c2d
--- /dev/null
+++ b/clang/lib/Analysis/plugins/CheckerOptionHandling/CMakeLists.txt
@@ -0,0 +1,10 @@
+set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/CheckerOptionHandlingAnalyzerPlugin.exports)
+add_llvm_library(CheckerOptionHandlingAnalyzerPlugin MODULE CheckerOptionHandling.cpp PLUGIN_TOOL clang)
+
+target_link_libraries(CheckerOptionHandlingAnalyzerPlugin PRIVATE
+  clangAnalysis
+  clangAST
+  clangStaticAnalyzerCore
+  clangStaticAnalyzerFrontend
+  LLVMSupport
+  )
diff --git a/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandling.cpp b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandling.cpp
new file mode 100644
index 00000000000..77de3630ae7
--- /dev/null
+++ b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandling.cpp
@@ -0,0 +1,44 @@
+#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
+#include "clang/StaticAnalyzer/Core/Checker.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
+#include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h"
+
+using namespace clang;
+using namespace ento;
+
+namespace {
+struct MyChecker : public Checker<check::BeginFunction> {
+  void checkBeginFunction(CheckerContext &Ctx) const {}
+};
+
+void registerMyChecker(CheckerManager &Mgr) {
+  MyChecker *Checker = Mgr.registerChecker<MyChecker>();
+  llvm::outs() << "Example option is set to "
+               << (Mgr.getAnalyzerOptions().getCheckerBooleanOption(
+                       Checker, "ExampleOption")
+                       ? "true"
+                       : "false")
+               << '\n';
+}
+
+bool shouldRegisterMyChecker(const LangOptions &LO) { return true; }
+
+} // end anonymous namespace
+
+// Register plugin!
+extern "C" void clang_registerCheckers(CheckerRegistry &registry) {
+  registry.addChecker(registerMyChecker, shouldRegisterMyChecker,
+                      "example.MyChecker", "Example Description",
+                      "example.mychecker.documentation.nonexistent.html",
+                      /*isHidden*/false);
+
+  registry.addCheckerOption(/*OptionType*/ "bool",
+                            /*CheckerFullName*/ "example.MyChecker",
+                            /*OptionName*/ "ExampleOption",
+                            /*DefaultValStr*/ "false",
+                            /*Description*/ "This is an example checker opt.",
+                            /*DevelopmentStage*/ "released");
+}
+
+extern "C" const char clang_analyzerAPIVersionString[] =
+    CLANG_ANALYZER_API_VERSION_STRING;
diff --git a/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandlingAnalyzerPlugin.exports b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandlingAnalyzerPlugin.exports
new file mode 100644
index 00000000000..8d9ff882cfb
--- /dev/null
+++ b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandlingAnalyzerPlugin.exports
@@ -0,0 +1,2 @@
+clang_registerCheckers
+clang_analyzerAPIVersionString