[LibTooling] Add Explanation parameter to `makeRule`.

Summary:
Conceptually, a single-case RewriteRule has a matcher, edit(s) and an (optional)
explanation. `makeRule` previously only took the matcher and edit(s). This
change adds (optional) support for the explanation.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62390

llvm-svn: 361643

1 files changed, 4 insertions, 4 deletions

diff --git a/clang/lib/Tooling/Refactoring/Transformer.cpp b/clang/lib/Tooling/Refactoring/Transformer.cpp
index bcbe0013107..76573d6b59f 100644
--- a/clang/lib/Tooling/Refactoring/Transformer.cpp
+++ b/clang/lib/Tooling/Refactoring/Transformer.cpp
@@ -96,10 +96,10 @@ ASTEdit tooling::change(RangeSelector S, TextGenerator Replacement) {
   return E;
 }
 
-RewriteRule tooling::makeRule(DynTypedMatcher M,
-                              SmallVector<ASTEdit, 1> Edits) {
-  return RewriteRule{
-      {RewriteRule::Case{std::move(M), std::move(Edits), nullptr}}};
+RewriteRule tooling::makeRule(DynTypedMatcher M, SmallVector<ASTEdit, 1> Edits,
+                              TextGenerator Explanation) {
+  return RewriteRule{{RewriteRule::Case{std::move(M), std::move(Edits),
+                                        std::move(Explanation)}}};
 }
 
 // Determines whether A is a base type of B in the class hierarchy, including