[PATCH] D135367: [clang-tidy] Dump effective diagnostics level in YAML output

[Dmitry Polukhin via Phabricator via cfe-commits]

DmitryPolukhin created this revision.
DmitryPolukhin added reviewers: njames93, klimek.
DmitryPolukhin added a project: clang-tools-extra.
Herald added subscribers: carlosgalvezp, xazax.hun.
Herald added a project: All.
DmitryPolukhin requested review of this revision.
Herald added a subscriber: cfe-commits.

Before this patch YAML output had default diagnostic level instead of effective level reported to the user on stdout. Wrapper scripts for clang-tidy usually use YAML output and they pick wrong diagnostics level without this patch.

Test Plan: check-clang-tools


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135367

Files:
  clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.cpp
  clang-tools-extra/test/clang-tidy/infrastructure/export-diagnostics.cpp


Index: clang-tools-extra/test/clang-tidy/infrastructure/export-diagnostics.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/infrastructure/export-diagnostics.cpp
+++ clang-tools-extra/test/clang-tidy/infrastructure/export-diagnostics.cpp
@@ -1,5 +1,5 @@
 // RUN: grep -Ev "// *[A-Z-]+:" %s > %t-input.cpp
-// RUN: not clang-tidy %t-input.cpp -checks='-*,google-explicit-constructor,clang-diagnostic-missing-prototypes,clang-diagnostic-zero-length-array' -export-fixes=%t.yaml -- -Wmissing-prototypes -Wzero-length-array > %t.msg 2>&1
+// RUN: not clang-tidy %t-input.cpp -checks='-*,google-explicit-constructor,clang-diagnostic-missing-prototypes,clang-diagnostic-zero-length-array' --warnings-as-errors='clang-diagnostic-missing-prototypes' -export-fixes=%t.yaml -- -Wmissing-prototypes -Wzero-length-array > %t.msg 2>&1
 // RUN: FileCheck -input-file=%t.msg -check-prefix=CHECK-MESSAGES %s -implicit-check-not='{{warning|error|note}}:'
 // RUN: FileCheck -input-file=%t.yaml -check-prefix=CHECK-YAML %s
 #define X(n) void n ## n() {}
@@ -12,7 +12,7 @@
   member;
 };
 
-// CHECK-MESSAGES: -input.cpp:2:1: warning: no previous prototype for function 'ff' [clang-diagnostic-missing-prototypes]
+// CHECK-MESSAGES: -input.cpp:2:1: error: no previous prototype for function 'ff' [clang-diagnostic-missing-prototypes,-warnings-as-errors]
 // CHECK-MESSAGES: -input.cpp:1:19: note: expanded from macro 'X'
 // CHECK-MESSAGES: {{^}}note: expanded from here{{$}}
 // CHECK-MESSAGES: -input.cpp:2:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
@@ -52,7 +52,7 @@
 // CHECK-YAML-NEXT:         FilePath:        '{{.*}}-input.cpp'
 // CHECK-YAML-NEXT:         FileOffset:      13
 // CHECK-YAML-NEXT:         Replacements:    []
-// CHECK-YAML-NEXT:     Level:           Warning
+// CHECK-YAML-NEXT:     Level:           Error
 // CHECK-YAML-NEXT:     BuildDirectory:  '{{.*}}'
 // CHECK-YAML-NEXT:   - DiagnosticName:  clang-diagnostic-error
 // CHECK-YAML-NEXT:     DiagnosticMessage:
Index: clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.cpp
===================================================================
--- clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.cpp
+++ clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.cpp
@@ -403,6 +403,8 @@
 
     bool IsWarningAsError = DiagLevel == DiagnosticsEngine::Warning &&
                             Context.treatAsError(CheckName);
+    if (IsWarningAsError)
+      Level = ClangTidyError::Error;
     Errors.emplace_back(CheckName, Level, Context.getCurrentBuildDirectory(),
                         IsWarningAsError);
   }


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