[PATCH] D116925: [clangd] Suppress warning about system_header pragma when editing headers

[Sam McCall via Phabricator via cfe-commits]

sammccall updated this revision to Diff 399624.
sammccall added a comment.

add fixme


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116925/new/

https://reviews.llvm.org/D116925

Files:
  clang-tools-extra/clangd/Diagnostics.cpp
  clang-tools-extra/clangd/ParsedAST.cpp
  clang-tools-extra/clangd/Preamble.cpp


Index: clang-tools-extra/clangd/Preamble.cpp
===================================================================
--- clang-tools-extra/clangd/Preamble.cpp
+++ clang-tools-extra/clangd/Preamble.cpp
@@ -350,7 +350,8 @@
   PreambleDiagnostics.setLevelAdjuster([&](DiagnosticsEngine::Level DiagLevel,
                                            const clang::Diagnostic &Info) {
     if (Cfg.Diagnostics.SuppressAll ||
-        isBuiltinDiagnosticSuppressed(Info.getID(), Cfg.Diagnostics.Suppress))
+        isBuiltinDiagnosticSuppressed(Info.getID(), Cfg.Diagnostics.Suppress,
+                                      *CI.getLangOpts()))
       return DiagnosticsEngine::Ignored;
     switch (Info.getID()) {
     case diag::warn_no_newline_eof:
Index: clang-tools-extra/clangd/ParsedAST.cpp
===================================================================
--- clang-tools-extra/clangd/ParsedAST.cpp
+++ clang-tools-extra/clangd/ParsedAST.cpp
@@ -445,7 +445,8 @@
     ASTDiags.setLevelAdjuster([&](DiagnosticsEngine::Level DiagLevel,
                                   const clang::Diagnostic &Info) {
       if (Cfg.Diagnostics.SuppressAll ||
-          isBuiltinDiagnosticSuppressed(Info.getID(), Cfg.Diagnostics.Suppress))
+          isBuiltinDiagnosticSuppressed(Info.getID(), Cfg.Diagnostics.Suppress,
+                                        Clang->getLangOpts()))
         return DiagnosticsEngine::Ignored;
 
       auto It = OverriddenSeverity.find(Info.getID());
Index: clang-tools-extra/clangd/Diagnostics.cpp
===================================================================
--- clang-tools-extra/clangd/Diagnostics.cpp
+++ clang-tools-extra/clangd/Diagnostics.cpp
@@ -879,7 +879,14 @@
 }
 
 bool isBuiltinDiagnosticSuppressed(unsigned ID,
-                                   const llvm::StringSet<> &Suppress) {
+                                   const llvm::StringSet<> &Suppress,
+                                   const LangOptions &LangOpts) {
+  // Don't complain about header-only stuff in mainfiles if it's a header.
+  // FIXME: would be cleaner to suppress in clang, once we decide whether the
+  //        behavior should be to silently-ignore or respect the pragma.
+  if (ID == diag::pp_pragma_sysheader_in_main_file && LangOpts.IsHeaderFile)
+    return true;
+
   if (const char *CodePtr = getDiagnosticCode(ID)) {
     if (Suppress.contains(normalizeSuppressedCode(CodePtr)))
       return true;


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