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//===--- FixItHintUtils.h - clang-tidy---------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_FIXITHINTUTILS_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_FIXITHINTUTILS_H
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
#include "clang/Sema/DeclSpec.h"
namespace clang {
namespace tidy {
namespace utils {
namespace fixit {
/// Creates fix to make ``VarDecl`` a reference by adding ``&``.
FixItHint changeVarDeclToReference(const VarDecl &Var, ASTContext &Context);
/// This enum defines where the qualifier shall be preferably added.
enum class QualifierPolicy {
Left, // Add the qualifier always to the left side, if that is possible.
Right, // Add the qualifier always to the right side.
};
/// This enum defines which entity is the target for adding the qualifier. This
/// makes only a difference for pointer-types. Other types behave identical
/// for either value of \c ConstTarget.
enum class QualifierTarget {
Pointee, /// Transforming a pointer attaches to the pointee and not the
/// pointer itself. For references and normal values this option has
/// no effect. `int * p = &i;` -> `const int * p = &i` or `int const
/// * p = &i`.
Value, /// Transforming pointers will consider the pointer itself.
/// `int * p = &i;` -> `int * const = &i`
};
/// \brief Creates fix to qualify ``VarDecl`` with the specified \c Qualifier.
/// Requires that `Var` is isolated in written code like in `int foo = 42;`.
Optional<FixItHint>
addQualifierToVarDecl(const VarDecl &Var, const ASTContext &Context,
DeclSpec::TQ Qualifier,
QualifierTarget CT = QualifierTarget::Pointee,
QualifierPolicy CP = QualifierPolicy::Left);
} // namespace fixit
} // namespace utils
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_FIXITHINTUTILS_H
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