Index: clangd/ClangdUnit.cpp =================================================================== --- clangd/ClangdUnit.cpp +++ clangd/ClangdUnit.cpp @@ -372,6 +372,9 @@ Clang->getPreprocessor().EndSourceFile(); std::vector Diags = ASTDiags.take(); + // Populate diagnostic source. + for (auto& D : Diags) + D.Source = CTContext->getCheckName(D.ID).empty() ? "clang" : "clang-tidy"; // Add diagnostics from the preamble, if any. if (Preamble) Diags.insert(Diags.begin(), Preamble->Diags.begin(), Preamble->Diags.end()); Index: clangd/Diagnostics.h =================================================================== --- clangd/Diagnostics.h +++ clangd/Diagnostics.h @@ -68,6 +68,10 @@ /// A top-level diagnostic that may have Notes and Fixes. struct Diag : DiagBase { + // Diagnostic enum ID. + unsigned ID; + // The source of this diagnostic, e.g. 'clang', 'clang-tidy'. + std::string Source; /// Elaborate on the problem, usually pointing to a related piece of code. std::vector Notes; /// *Alternative* fixes for this diagnostic, one should be chosen. Index: clangd/Diagnostics.cpp =================================================================== --- clangd/Diagnostics.cpp +++ clangd/Diagnostics.cpp @@ -253,6 +253,7 @@ { clangd::Diagnostic Main = FillBasicFields(D); Main.message = mainMessage(D, Opts.DisplayFixesCount); + Main.source = D.Source; if (Opts.EmbedFixesInDiagnostics) { Main.codeActions.emplace(); for (const auto &Fix : D.Fixes) @@ -377,6 +378,7 @@ flushLastDiag(); LastDiag = Diag(); + LastDiag->ID = Info.getID(); FillDiagBase(*LastDiag); if (!Info.getFixItHints().empty()) Index: clangd/Protocol.h =================================================================== --- clangd/Protocol.h +++ clangd/Protocol.h @@ -571,8 +571,7 @@ /// A human-readable string describing the source of this /// diagnostic, e.g. 'typescript' or 'super lint'. - /// Note: Not currently used by clangd - // std::string source; + std::string source; /// The diagnostic's message. std::string message; Index: clangd/Protocol.cpp =================================================================== --- clangd/Protocol.cpp +++ clangd/Protocol.cpp @@ -369,6 +369,8 @@ Diag["category"] = *D.category; if (D.codeActions) Diag["codeActions"] = D.codeActions; + if (!D.source.empty()) + Diag["source"] = D.source; return std::move(Diag); } @@ -378,6 +380,7 @@ return false; O.map("severity", R.severity); O.map("category", R.category); + O.map("source", R.source); return true; } Index: test/clangd/diagnostic-category.test =================================================================== --- test/clangd/diagnostic-category.test +++ test/clangd/diagnostic-category.test @@ -18,7 +18,8 @@ # CHECK-NEXT: "line": 0 # CHECK-NEXT: } # CHECK-NEXT: }, -# CHECK-NEXT: "severity": 1 +# CHECK-NEXT: "severity": 1, +# CHECK-NEXT: "source": "clang" # CHECK-NEXT: }, # CHECK-NEXT: { # CHECK-NEXT: "message": "Previous use is here\n\nfoo.c:1:18: error: use of 'Point' with tag type that does not match previous declaration", Index: test/clangd/diagnostics.test =================================================================== --- test/clangd/diagnostics.test +++ test/clangd/diagnostics.test @@ -17,7 +17,8 @@ # CHECK-NEXT: "line": 0 # CHECK-NEXT: } # CHECK-NEXT: }, -# CHECK-NEXT: "severity": 2 +# CHECK-NEXT: "severity": 2, +# CHECK-NEXT: "source": "clang" # CHECK-NEXT: } # CHECK-NEXT: ], # CHECK-NEXT: "uri": "file://{{.*}}/foo.c" Index: test/clangd/did-change-configuration-params.test =================================================================== --- test/clangd/did-change-configuration-params.test +++ test/clangd/did-change-configuration-params.test @@ -35,7 +35,8 @@ # CHECK-NEXT: "line": 0 # CHECK-NEXT: } # CHECK-NEXT: }, -# CHECK-NEXT: "severity": 1 +# CHECK-NEXT: "severity": 1, +# CHECK-NEXT: "source": "clang" # CHECK-NEXT: } # CHECK-NEXT: ], # CHECK-NEXT: "uri": "file://{{.*}}/foo.c" Index: test/clangd/execute-command.test =================================================================== --- test/clangd/execute-command.test +++ test/clangd/execute-command.test @@ -17,7 +17,8 @@ # CHECK-NEXT: "line": 0 # CHECK-NEXT: } # CHECK-NEXT: }, -# CHECK-NEXT: "severity": 2 +# CHECK-NEXT: "severity": 2, +# CHECK-NEXT: "source": "clang" # CHECK-NEXT: } # CHECK-NEXT: ], # CHECK-NEXT: "uri": "file://{{.*}}/foo.c" Index: test/clangd/fixits-codeaction.test =================================================================== --- test/clangd/fixits-codeaction.test +++ test/clangd/fixits-codeaction.test @@ -17,7 +17,8 @@ # CHECK-NEXT: "line": 0 # CHECK-NEXT: } # CHECK-NEXT: }, -# CHECK-NEXT: "severity": 2 +# CHECK-NEXT: "severity": 2, +# CHECK-NEXT: "source": "clang" # CHECK-NEXT: } # CHECK-NEXT: ], # CHECK-NEXT: "uri": "file://{{.*}}/foo.c" Index: test/clangd/fixits-command.test =================================================================== --- test/clangd/fixits-command.test +++ test/clangd/fixits-command.test @@ -17,7 +17,8 @@ # CHECK-NEXT: "line": 0 # CHECK-NEXT: } # CHECK-NEXT: }, -# CHECK-NEXT: "severity": 2 +# CHECK-NEXT: "severity": 2, +# CHECK-NEXT: "source": "clang" # CHECK-NEXT: } # CHECK-NEXT: ], # CHECK-NEXT: "uri": "file://{{.*}}/foo.c" Index: test/clangd/fixits-embed-in-diagnostic.test =================================================================== --- test/clangd/fixits-embed-in-diagnostic.test +++ test/clangd/fixits-embed-in-diagnostic.test @@ -42,7 +42,8 @@ # CHECK-NEXT: "line": 0 # CHECK-NEXT: } # CHECK-NEXT: }, -# CHECK-NEXT: "severity": 1 +# CHECK-NEXT: "severity": 1, +# CHECK-NEXT: "source": "clang" # CHECK-NEXT: }, # CHECK-NEXT: { # CHECK-NEXT: "message": "Previous use is here\n\nfoo.c:1:18: error: use of 'Point' with tag type that does not match previous declaration", Index: unittests/clangd/DiagnosticsTests.cpp =================================================================== --- unittests/clangd/DiagnosticsTests.cpp +++ unittests/clangd/DiagnosticsTests.cpp @@ -58,6 +58,10 @@ std::tie(LSPDiag.range, LSPDiag.severity, LSPDiag.message); } +MATCHER_P(DiagSource, Source, "") { + return arg.Source == Source; +} + MATCHER_P(EqualToFix, Fix, "LSP fix " + llvm::to_string(Fix)) { if (arg.Message != Fix.Message) return false; @@ -102,6 +106,7 @@ // This range spans lines. AllOf(Diag(Test.range("typo"), "use of undeclared identifier 'goo'; did you mean 'foo'?"), + DiagSource("clang"), WithFix( Fix(Test.range("typo"), "foo", "change 'go\\ o' to 'foo'")), // This is a pretty normal range. @@ -159,6 +164,7 @@ AllOf(Diag(Test.range("deprecated"), "inclusion of deprecated C++ header 'assert.h'; consider " "using 'cassert' instead [modernize-deprecated-headers]"), + DiagSource("clang-tidy"), WithFix(Fix(Test.range("deprecated"), "", "change '\"assert.h\"' to ''"))), Diag(Test.range("doubled"), @@ -168,6 +174,7 @@ Diag(Test.range("macroarg"), "side effects in the 1st macro argument 'X' are repeated in " "macro expansion [bugprone-macro-repeated-side-effects]"), + DiagSource("clang-tidy"), WithNote(Diag(Test.range("macrodef"), "macro 'SQUARE' defined here " "[bugprone-macro-repeated-side-effects]"))),