3 files changed, 62 insertions, 0 deletions
diff --git a/examples/AnnotateFunctions/AnnotateFunctions.cpp b/examples/AnnotateFunctions/AnnotateFunctions.cpp
new file mode 100644
index 0000000000..f2e7322183
--- /dev/null
+++ b/examples/AnnotateFunctions/AnnotateFunctions.cpp
@@ -0,0 +1,52 @@
+//===- AnnotateFunctions.cpp ----------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Example clang plugin which adds an annotation to every function.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Frontend/FrontendPluginRegistry.h"
+#include "clang/AST/AST.h"
+#include "clang/AST/ASTConsumer.h"
+using namespace clang;
+
+namespace {
+
+class AnnotateFunctionsConsumer : public ASTConsumer {
+public:
+  bool HandleTopLevelDecl(DeclGroupRef DG) override {
+    for (auto D : DG)
+      if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D))
+        FD->addAttr(AnnotateAttr::CreateImplicit(FD->getASTContext(),
+                                                 "example_annotation"));
+    return true;
+  }
+};
+
+class AnnotateFunctionsAction : public PluginASTAction {
+public:
+  std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,
+                                                 llvm::StringRef) override {
+    return llvm::make_unique<AnnotateFunctionsConsumer>();
+  }
+
+  bool ParseArgs(const CompilerInstance &CI,
+                 const std::vector<std::string> &args) override {
+    return true;
+  }
+
+  PluginASTAction::ActionType getActionType() override {
+    return AddBeforeMainAction;
+  }
+};
+
+}
+
+static FrontendPluginRegistry::Add<AnnotateFunctionsAction>
+X("annotate-fns", "annotate functions");
diff --git a/examples/AnnotateFunctions/CMakeLists.txt b/examples/AnnotateFunctions/CMakeLists.txt
new file mode 100644
index 0000000000..5aa6a9064c
--- /dev/null
+++ b/examples/AnnotateFunctions/CMakeLists.txt
@@ -0,0 +1,9 @@
+add_llvm_loadable_module(AnnotateFunctions AnnotateFunctions.cpp)
+
+if(LLVM_ENABLE_PLUGINS AND (WIN32 OR CYGWIN))
+  target_link_libraries(AnnotateFunctions ${cmake_2_8_12_PRIVATE}
+    clangAST
+    clangFrontend
+    LLVMSupport
+    )
+endif()
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 5d4b5fcdb0..8c2654840a 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -8,3 +8,4 @@ add_subdirectory(analyzer-plugin)
 endif()
 add_subdirectory(clang-interpreter)
 add_subdirectory(PrintFunctionNames)
+add_subdirectory(AnnotateFunctions)