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comparison clang-tools-extra/clang-tidy/utils/FixItHintUtils.h @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 2e18cbf3894f
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147:c2174574ed3a 150:1d019706d866
1 //===--- FixItHintUtils.h - clang-tidy---------------------------*- C++ -*-===//
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_TOOLS_EXTRA_CLANG_TIDY_UTILS_FIXITHINTUTILS_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_FIXITHINTUTILS_H
11
12 #include "clang/AST/ASTContext.h"
13 #include "clang/AST/Decl.h"
14 #include "clang/Sema/DeclSpec.h"
15
16 namespace clang {
17 namespace tidy {
18 namespace utils {
19 namespace fixit {
20
21 /// Creates fix to make ``VarDecl`` a reference by adding ``&``.
22 FixItHint changeVarDeclToReference(const VarDecl &Var, ASTContext &Context);
23
24 /// Creates fix to make ``VarDecl`` const qualified.
25 FixItHint changeVarDeclToConst(const VarDecl &Var);
26
27 /// This enum defines where the qualifier shall be preferably added.
28 enum class QualifierPolicy {
29 Left, // Add the qualifier always to the left side, if that is possible.
30 Right, // Add the qualifier always to the right side.
31 };
32
33 /// This enum defines which entity is the target for adding the qualifier. This
34 /// makes only a difference for pointer-types. Other types behave identical
35 /// for either value of \c ConstTarget.
36 enum class QualifierTarget {
37 Pointee, /// Transforming a pointer attaches to the pointee and not the
38 /// pointer itself. For references and normal values this option has
39 /// no effect. `int * p = &i;` -> `const int * p = &i` or `int const
40 /// * p = &i`.
41 Value, /// Transforming pointers will consider the pointer itself.
42 /// `int * p = &i;` -> `int * const = &i`
43 };
44
45 /// \brief Creates fix to qualify ``VarDecl`` with the specified \c Qualifier.
46 /// Requires that `Var` is isolated in written code like in `int foo = 42;`.
47 Optional<FixItHint>
48 addQualifierToVarDecl(const VarDecl &Var, const ASTContext &Context,
49 DeclSpec::TQ Qualifier,
50 QualifierTarget CT = QualifierTarget::Pointee,
51 QualifierPolicy CP = QualifierPolicy::Left);
52 } // namespace fixit
53 } // namespace utils
54 } // namespace tidy
55 } // namespace clang
56
57 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_FIXITHINTUTILS_H