6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
//===--- RefactoringOptionVisitor.h - Clang refactoring library -----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLING_REFACTORING_REFACTORINGOPTIONVISITOR_H
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#define LLVM_CLANG_TOOLING_REFACTORING_REFACTORINGOPTIONVISITOR_H
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#include "clang/Basic/LLVM.h"
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#include <optional>
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#include <type_traits>
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namespace clang {
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namespace tooling {
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class RefactoringOption;
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/// An interface that declares functions that handle different refactoring
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/// option types.
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///
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/// A valid refactoring option type must have a corresponding \c visit
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/// declaration in this interface.
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class RefactoringOptionVisitor {
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public:
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virtual ~RefactoringOptionVisitor() {}
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virtual void visit(const RefactoringOption &Opt,
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std::optional<std::string> &Value) = 0;
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};
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namespace traits {
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namespace internal {
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template <typename T> struct HasHandle {
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private:
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template <typename ClassT>
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static auto check(ClassT *) -> typename std::is_same<
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decltype(std::declval<RefactoringOptionVisitor>().visit(
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std::declval<RefactoringOption>(),
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*std::declval<std::optional<T> *>())),
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void>::type;
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template <typename> static std::false_type check(...);
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public:
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using Type = decltype(check<RefactoringOptionVisitor>(nullptr));
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};
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} // end namespace internal
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/// A type trait that returns true iff the given type is a type that can be
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/// stored in a refactoring option.
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template <typename T>
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struct IsValidOptionType : internal::HasHandle<T>::Type {};
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} // end namespace traits
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} // end namespace tooling
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} // end namespace clang
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#endif // LLVM_CLANG_TOOLING_REFACTORING_REFACTORINGOPTIONVISITOR_H
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