[Query] NFC: Port QueryParser to StringRef

Summary:
There is no reason for it to not be a StringRef.  Making it one
simplifies existing code, and makes follow-up features easier.

Reviewers: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D56415

llvm-svn: 350660

1 files changed, 2 insertions, 3 deletions

diff --git a/clang-tools-extra/clang-query/QueryParser.h b/clang-tools-extra/clang-query/QueryParser.h
index 6730f990190..56eb5a9abae 100644
--- a/clang-tools-extra/clang-query/QueryParser.h
+++ b/clang-tools-extra/clang-query/QueryParser.h
@@ -37,7 +37,7 @@ public:
 
 private:
   QueryParser(StringRef Line, const QuerySession &QS)
-      : Begin(Line.begin()), End(Line.end()), CompletionPos(nullptr), QS(QS) {}
+      : Line(Line), CompletionPos(nullptr), QS(QS) {}
 
   StringRef lexWord();
 
@@ -55,8 +55,7 @@ private:
   /// \c InvalidQuery if a parse error occurs.
   QueryRef doParse();
 
-  const char *Begin;
-  const char *End;
+  StringRef Line;
 
   const char *CompletionPos;
   std::vector<llvm::LineEditor::Completion> Completions;