1//===--- RefactoringOptions.h - Clang refactoring library -----------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8 9#ifndef LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_OPTIONS_H 10#define LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_OPTIONS_H 11 12#include "clang/Basic/LLVM.h" 13#include "clang/Tooling/Refactoring/RefactoringActionRuleRequirements.h" 14#include "clang/Tooling/Refactoring/RefactoringOption.h" 15#include "clang/Tooling/Refactoring/RefactoringOptionVisitor.h" 16#include "llvm/Support/Error.h" 17#include <type_traits> 18 19namespace clang { 20namespace tooling { 21 22/// A refactoring option that stores a value of type \c T. 23template <typename T, typename = typename std::enable_if< 24 traits::IsValidOptionType<T>::value>::type> 25class OptionalRefactoringOption : public RefactoringOption { 26public: 27 void passToVisitor(RefactoringOptionVisitor &Visitor) final override { 28 Visitor.visit(*this, Value); 29 } 30 31 bool isRequired() const override { return false; } 32 33 using ValueType = Optional<T>; 34 35 const ValueType &getValue() const { return Value; } 36 37protected: 38 Optional<T> Value; 39}; 40 41/// A required refactoring option that stores a value of type \c T. 42template <typename T, typename = typename std::enable_if< 43 traits::IsValidOptionType<T>::value>::type> 44class RequiredRefactoringOption : public OptionalRefactoringOption<T> { 45public: 46 using ValueType = T; 47 48 const ValueType &getValue() const { 49 return *OptionalRefactoringOption<T>::Value; 50 } 51 bool isRequired() const final override { return true; } 52}; 53 54} // end namespace tooling 55} // end namespace clang 56 57#endif // LLVM_CLANG_TOOLING_REFACTOR_REFACTORING_OPTIONS_H 58