1 files changed, 80 insertions, 0 deletions
diff --git a/clang-tools-extra/cpp11-migrate/PassByValue/PassByValue.cpp b/clang-tools-extra/cpp11-migrate/PassByValue/PassByValue.cpp
new file mode 100644
index 00000000000..bbcba830296
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+++ b/clang-tools-extra/cpp11-migrate/PassByValue/PassByValue.cpp
@@ -0,0 +1,80 @@
+//===-- PassByValue.cpp ---------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file provides the implementation of the ReplaceAutoPtrTransform
+/// class.
+///
+//===----------------------------------------------------------------------===//
+
+#include "PassByValue.h"
+#include "PassByValueActions.h"
+#include "PassByValueMatchers.h"
+
+using namespace clang;
+using namespace clang::tooling;
+using namespace clang::ast_matchers;
+
+int PassByValueTransform::apply(
+    FileOverrides &InputStates, const tooling::CompilationDatabase &Database,
+    const std::vector<std::string> &SourcePaths) LLVM_OVERRIDE {
+  ClangTool Tool(Database, SourcePaths);
+  unsigned AcceptedChanges = 0;
+  unsigned RejectedChanges = 0;
+  MatchFinder Finder;
+  ConstructorParamReplacer Replacer(getReplacements(), AcceptedChanges,
+                                    RejectedChanges,
+                                    /*Owner=*/ *this);
+
+  Finder.addMatcher(makePassByValueCtorParamMatcher(), &Replacer);
+
+  // make the replacer available to handleBeginSource()
+  this->Replacer = &Replacer;
+
+  setOverrides(InputStates);
+
+  if (Tool.run(createActionFactory(Finder))) {
+    llvm::errs() << "Error encountered during translation.\n";
+    return 1;
+  }
+
+  setAcceptedChanges(AcceptedChanges);
+  setRejectedChanges(RejectedChanges);
+  return 0;
+}
+
+bool PassByValueTransform::handleBeginSource(CompilerInstance &CI,
+                                             llvm::StringRef Filename) {
+  assert(Replacer && "Replacer not set");
+  IncludeManager.reset(new IncludeDirectives(CI));
+  Replacer->setIncludeDirectives(IncludeManager.get());
+  return Transform::handleBeginSource(CI, Filename);
+}
+
+struct PassByValueFactory : TransformFactory {
+  PassByValueFactory() {
+    // Based on the Replace Auto-Ptr Transform that is also using std::move().
+    Since.Clang = Version(3, 0);
+    Since.Gcc = Version(4, 6);
+    Since.Icc = Version(13);
+    Since.Msvc = Version(11);
+  }
+
+  Transform *createTransform(const TransformOptions &Opts) LLVM_OVERRIDE {
+    return new PassByValueTransform(Opts);
+  }
+};
+
+// Register the factory using this statically initialized variable.
+static TransformFactoryRegistry::Add<PassByValueFactory>
+X("pass-by-value", "Pass parameters by value where possible");
+
+// This anchor is used to force the linker to link in the generated object file
+// and thus register the factory.
+volatile int PassByValueTransformAnchorSource = 0;