1 files changed, 10 insertions, 23 deletions

diff --git a/clang-tools-extra/clangd/JSONRPCDispatcher.cpp b/clang-tools-extra/clangd/JSONRPCDispatcher.cpp
index 979402c0390..6641aae6a2f 100644
--- a/clang-tools-extra/clangd/JSONRPCDispatcher.cpp
+++ b/clang-tools-extra/clangd/JSONRPCDispatcher.cpp
@@ -37,14 +37,6 @@ void JSONOutput::log(const Twine &Message) {
   Logs.flush();
 }
 
-void JSONOutput::mirrorInput(const Twine &Message) {
-  if (!InputMirror)
-    return;
-
-  *InputMirror << Message;
-  InputMirror->flush();
-}
-
 void Handler::handleMethod(llvm::yaml::MappingNode *Params, StringRef ID) {
   Output.log("Method ignored.\n");
   // Return that this method is unsupported.
@@ -155,14 +147,6 @@ void clangd::runLanguageServerLoop(std::istream &In, JSONOutput &Out,
         continue;
       }
 
-      Out.mirrorInput(Line);
-      // Mirror '\n' that gets consumed by std::getline, but is not included in
-      // the resulting Line.
-      // Note that '\r' is part of Line, so we don't need to mirror it
-      // separately.
-      if (!In.eof())
-        Out.mirrorInput("\n");
-
       llvm::StringRef LineRef(Line);
 
       // We allow YAML-style comments in headers. Technically this isn't part
@@ -179,8 +163,9 @@ void clangd::runLanguageServerLoop(std::istream &In, JSONOutput &Out,
       if (LineRef.consume_front("Content-Length: ")) {
         if (ContentLength != 0) {
           Out.log("Warning: Duplicate Content-Length header received. "
-                  "The previous value for this message (" +
-                  std::to_string(ContentLength) + ") was ignored.\n");
+                  "The previous value for this message ("
+                  + std::to_string(ContentLength)
+                  + ") was ignored.\n");
         }
 
         llvm::getAsUnsignedInteger(LineRef.trim(), 0, ContentLength);
@@ -200,13 +185,15 @@ void clangd::runLanguageServerLoop(std::istream &In, JSONOutput &Out,
       // parser.
       std::vector<char> JSON(ContentLength + 1, '\0');
       In.read(JSON.data(), ContentLength);
-      Out.mirrorInput(StringRef(JSON.data(), In.gcount()));
 
       // If the stream is aborted before we read ContentLength bytes, In
       // will have eofbit and failbit set.
       if (!In) {
-        Out.log("Input was aborted. Read only " + std::to_string(In.gcount()) +
-                " bytes of expected " + std::to_string(ContentLength) + ".\n");
+        Out.log("Input was aborted. Read only "
+                + std::to_string(In.gcount())
+                + " bytes of expected "
+                + std::to_string(ContentLength)
+                + ".\n");
         break;
       }
 
@@ -222,8 +209,8 @@ void clangd::runLanguageServerLoop(std::istream &In, JSONOutput &Out,
       if (IsDone)
         break;
     } else {
-      Out.log("Warning: Missing Content-Length header, or message has zero "
-              "length.\n");
+      Out.log( "Warning: Missing Content-Length header, or message has zero "
+               "length.\n" );
     }
   }
 }