[PATCH] D79692: [clangd] Make version in PublishDiagnosticsParams optional

[Kadir Cetinkaya via Phabricator via cfe-commits]

kadircet created this revision.
kadircet added a reviewer: sammccall.
Herald added subscribers: cfe-commits, usaxena95, arphaman, jkorous, MaskRay, ilya-biryukov.
Herald added a project: clang.

We were serializing it no matter what, which was against the spec


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79692

Files:
  clang-tools-extra/clangd/Protocol.cpp
  clang-tools-extra/clangd/test/diagnostics-no-tidy.test
  clang-tools-extra/clangd/test/diagnostics.test


Index: clang-tools-extra/clangd/test/diagnostics.test
===================================================================
--- clang-tools-extra/clangd/test/diagnostics.test
+++ clang-tools-extra/clangd/test/diagnostics.test
@@ -48,8 +48,7 @@
 #      CHECK:  "method": "textDocument/publishDiagnostics",
 # CHECK-NEXT:  "params": {
 # CHECK-NEXT:    "diagnostics": [],
-# CHECK-NEXT:    "uri": "file://{{.*}}/foo.c",
-# CHECK-NEXT:    "version": null
+# CHECK-NEXT:    "uri": "file://{{.*}}/foo.c"
 # CHECK-NEXT:  }
 ---
 {"jsonrpc":"2.0","id":5,"method":"shutdown"}
Index: clang-tools-extra/clangd/test/diagnostics-no-tidy.test
===================================================================
--- clang-tools-extra/clangd/test/diagnostics-no-tidy.test
+++ clang-tools-extra/clangd/test/diagnostics-no-tidy.test
@@ -32,8 +32,7 @@
 #      CHECK:  "method": "textDocument/publishDiagnostics",
 # CHECK-NEXT:  "params": {
 # CHECK-NEXT:    "diagnostics": [],
-# CHECK-NEXT:    "uri": "file://{{.*}}/foo.c",
-# CHECK-NEXT:    "version": null
+# CHECK-NEXT:    "uri": "file://{{.*}}/foo.c"
 # CHECK-NEXT:  }
 ---
 {"jsonrpc":"2.0","id":5,"method":"shutdown"}
Index: clang-tools-extra/clangd/Protocol.cpp
===================================================================
--- clang-tools-extra/clangd/Protocol.cpp
+++ clang-tools-extra/clangd/Protocol.cpp
@@ -560,11 +560,14 @@
 }
 
 llvm::json::Value toJSON(const PublishDiagnosticsParams &PDP) {
-  return llvm::json::Object{
+  llvm::json::Object Result{
       {"uri", PDP.uri},
       {"diagnostics", PDP.diagnostics},
-      {"version", PDP.version},
   };
+  if (PDP.version)
+    Result["version"] = PDP.version;
+  // FIXME: workaround for older gcc/clang
+  return std::move(Result);
 }
 
 bool fromJSON(const llvm::json::Value &Params, CodeActionContext &R) {


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