1 files changed, 26 insertions, 0 deletions
diff --git a/clang-tools-extra/clang-tidy/utils/FixItHintUtils.h b/clang-tools-extra/clang-tidy/utils/FixItHintUtils.h
index e55f19c9e86..4fa5e0a8a4a 100644
--- a/clang-tools-extra/clang-tidy/utils/FixItHintUtils.h
+++ b/clang-tools-extra/clang-tidy/utils/FixItHintUtils.h
@@ -11,6 +11,7 @@
 
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Decl.h"
+#include "clang/Sema/DeclSpec.h"
 
 namespace clang {
 namespace tidy {
@@ -23,6 +24,31 @@ FixItHint changeVarDeclToReference(const VarDecl &Var, ASTContext &Context);
 /// Creates fix to make ``VarDecl`` const qualified.
 FixItHint changeVarDeclToConst(const VarDecl &Var);
 
+/// 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