Vendor import of clang trunk r321017:vendor/clang/clang-trunk-r321017

https://llvm.org/svn/llvm-project/cfe/trunk@321017

1 files changed, 58 insertions, 0 deletions

diff --git a/include/clang/Tooling/Refactoring/RefactoringOptions.h b/include/clang/Tooling/Refactoring/RefactoringOptions.h
new file mode 100644
index 000000000000..e45c0a09fd67
--- /dev/null
+++ b/include/clang/Tooling/Refactoring/RefactoringOptions.h
@@ -0,0 +1,58 @@
+//===--- RefactoringOptions.h - Clang refactoring library -----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_OPTIONS_H
+#define LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_OPTIONS_H
+
+#include "clang/Basic/LLVM.h"
+#include "clang/Tooling/Refactoring/RefactoringActionRuleRequirements.h"
+#include "clang/Tooling/Refactoring/RefactoringOption.h"
+#include "clang/Tooling/Refactoring/RefactoringOptionVisitor.h"
+#include "llvm/Support/Error.h"
+#include <type_traits>
+
+namespace clang {
+namespace tooling {
+
+/// A refactoring option that stores a value of type \c T.
+template <typename T, typename = typename std::enable_if<
+                          traits::IsValidOptionType<T>::value>::type>
+class OptionalRefactoringOption : public RefactoringOption {
+public:
+  void passToVisitor(RefactoringOptionVisitor &Visitor) final override {
+    Visitor.visit(*this, Value);
+  }
+
+  bool isRequired() const override { return false; }
+
+  using ValueType = Optional<T>;
+
+  const ValueType &getValue() const { return Value; }
+
+protected:
+  Optional<T> Value;
+};
+
+/// A required refactoring option that stores a value of type \c T.
+template <typename T, typename = typename std::enable_if<
+                          traits::IsValidOptionType<T>::value>::type>
+class RequiredRefactoringOption : public OptionalRefactoringOption<T> {
+public:
+  using ValueType = T;
+
+  const ValueType &getValue() const {
+    return *OptionalRefactoringOption<T>::Value;
+  }
+  bool isRequired() const final override { return true; }
+};
+
+} // end namespace tooling
+} // end namespace clang
+
+#endif // LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_OPTIONS_H